iom-york vrf.pdf

7/25/2019 IOM-YORK VRF.pdf

1/106

YDOH(C)-0C IOM

FORM NO.:Y (YGF)()

V

F (RF) S

Installation, Operation & Maintenance anual


2/106

Digital Scroll VRF Systems

Part 1.

Part 5

Part 2

Part 6.

Part 3

Part 7

Part 8

Part 4


3/106

Part 9

Part 10

Part 12

Part 11

All the illustrations and information in this manual are only for reference. The manufacturer has the right to change,

without prior notice, necessarily at any time due to reasons in relation to sale or production.

Amicable tips:

Units using environment friendly R410a has no harm to the ozonosphere.

The manual is an integral part of the unit and should be properly kept for reference at any time after reading. At the same time, please hand themanual over to other operators for reference.


4/106

Foreword

This manual covers the necessary information for correct installation, commissioning, startup and maintenance of the unit.Please read this manual thoroughly before installing, starting or overhauling the unit so that it can be operated optimally.

Dont operate the unit for fear of personal risk and unit failure, if you have not completely understood the working principle

of the unit, or dont have sufficient general safety knowledge or adopt relevant safeguard measures.

So, we suggest that the installation, starting and debugging of the unit should be done by specially trained personnel.

Warranty only applies on the basis of the following prerequisites:

Warranty only applies on the basis of the following prerequisites:

The installation work must be carried on by specially trained personnel and the startup of the unit must be

carried out by the professional technicians of YORK Repair Service Center or personnel of a service agent

designated by YORK.

Only those genuine spare parts supplied by YORK should be used.As for all the operation and maintenance specified in this manual, please strictly abide by the requirements

in terms of the time and frequency.

Any violation of the above mentioned prerequisites would automatically void the warranty.

Personnel responsible for the installation of the units should ensure the security of the installation process and take

responsibility for all the installation work of refrigerant piping, water circulation, electric and other necessary ancillary

equipments.

YORK shall not be liable for any personal injury or damage due to improper installation and

commissioning, unnecessary repair, and failure to observe the provisions and instructions in this manual.

In case of any doubt during the installation process, please contact YORK Company or its regional offices.

Other notices

Checkout

Upon receiving the unit, damages that may occur in the transport process should be immediately checked. Any significant

damage, if there is, should be written in the carrier transport documents, and claims should be pursued according to the

notice instructions. If the parts other than the surface were damaged, please immediately notify the local maintenance

personnel of York Company.

Storage

If the unit is to be stored for a period of time until the installation, protective measures should be taken to prevent the

damage, corrosion or wear;

The storage temperature should not exceed 45. Direct sunlight shall be avoided.

The air-cooled coil heat exchanger on the unit should be covered. Especially, it shall not be stored in the open region of

construction, lest the fin will be blocked and stained.

To reduce the possibility of accidental damage (e.g. damaged by the collision, etc.), the unit should be kept in zones

where the least activities occur.

Periodical visual inspection should be carried during the storage period.

During the production of the digital scroll air-condition unit, the design and production

standards have been strictly observed, to ensure that the un is provided with high-quality operating stat high reliability

and excellent adaptability.


5/106

Johnson Controls YORK series digital scroll VRF (Variable Refrigerant Flow) systems aim to provide you with a

comfortable indoor environment. Using the advanced digital scroll technology, it can accurately maintain the ideal room

temperature while still saving energy. YORKVRF systems smart choice for better living.

This range of VRF products from Johnson Controls offers the perfect combination of superior product quality, operating

efficiency and value for money. All units are manufactured under strict quality control with full conformance to ISO 9001 and

ISO 14001. The Johnson Controls YORKdigital scroll VRF air conditioners consist of ceiling concealed / cassette/

wall mount indoor units and digital scroll outdoor condensing units.

The outdoor units are available in vertical air discharge configurations. The cooling capacity ranges from 25.5 to 138kW

with up to 3 modular units in combination. One outdoor unit can drive up to 48 indoor units (model 340 and above), and no

matter what the room size or structure, there is always a flexible combination. Ceiling concealed indoor units range from 1.8

to 17.5kW available in a range of 12 sizes. Ceiling cassette indoor units range from 2.8 to 13kW in 8 sizes, wall mounted

indoor units are available in 3 sizes with 3.2, 5.3 and 7kW cooling capacities, while ceiling package indoor units range from

1.8 to

YORK digital scroll VRF systems are suitable for a variety of applications such as high rise apartment buildings,

condominiums, houses, offices, schools, shops, mosques, indoor play areas and other similar applications. All units are

designed with the convenience of the customer and the end user in mind and are factory assembled, tested, and supplied

internally wired and with refrigerant charge.

Y D CC 034 H O F L E A 0 C 3

-- -- -- -- -- -- -- -- -- -- -- -- --

1 2 3 4 5 6 7 8 9 10 11 12 13

CP: Ceiling package


6/106

Y D O H 80 E V V -0 C 1 E

-- -- -- -- -- -- -- -- -- -- -- --

1 2 3 4 5 6 7 8 9 10 11 12


7/106

Note:

80 100 120 140 160

Basic Model YDOH(C)xxEVV-0C1

YDOH180 32

YDOH200 32

YDOH220 32

YDOH240

32

YDOH260 32

YDOH280 32

YDOH300 32

YDOH320 32

YDOH340 48

YDOH360 48

YDOH380 48

YDOH400 48

YDOH420 48

YDOH440

48

YDOH460 48

YDOH480 48

Max # of

indoor units

Variable UnitModular Units

Outdoor Model Type of UnitCapacity and Combination


8/106

1.2. Physical data

BASIC MODELS

Following data table includes Cooling only model and heat pump model. YDOC refer to cooling only model and YDOH refer to heat pump

model. The data remarks * is only available to heat pump.

ModelYDOH80

EVV-0C1

YDOH100

EVV-0C1

YDOH120

EVV-0C1

YDOH140

EVV-0C1

YDOH160

EVV-0C1

Cooling Capacity kW 25.5 28.5 32 41 46

Heating Capacity kW 29 31.5 35 43 47

Power Supply 380V 3N ~50Hz

Compres

sorskW 7.69 9.07 9.37 11.52 15.10Cooling Power

InputFan kW 0.45 0.45 0.72 1.14 1.14

Cooling Current Input A 16 18 20 25 31Compres

sorskW 7.51 8.08 8.09 9.57 12.30Heating Power

InputFan kW 0.45 0.45 0.72 1.14 1.14

Heating Current A 15 16 18 23 27

Maximum Power Input kW 11.5 13 14 18 21

Maximum Current Input A 22.2 23.8 29.1 34.1 40.1

Air Flow m3/min 185 185 235 250 250

H mm 1650

W mm 1000 1300Dimension

T mm 770

Type - R410ARefrigerant

Charge kg 9 10 1

Machine Weight kg 270 270 320 380 380

Gas mm 19.05 22.23 25.4 28.58

Liquid mm 9.52 12.7Connecting

PipesOil mm 6.35

Maximum number of indoor units 16

Note:1. Oil balance pipe is only used in module system

2. Cooling test condition: outdoor dry bulb temperature: 35C; indoor dry bulb temperature/wet bulb temperature: 27C/19C.Heating test condition: outdoor dry bulb temperature/wet bulb temperature: 7C/6C; indoor dry bulb temperature/wet bulb temperature:20C/15C. Tubing length: 10m and height difference: 0m.

3. Outdoor ambient temperature for air conditioning (recommended): 18~46C(cooling operation), -724 (heating operation).

4. The indoor unit and outdoor unit must be matched as both C-types.5. The power supply voltage allowed scope

Outdoor unit: minimum voltage allowed is 342V, maximum voltage allowed is 420VIndoor unit: minimum voltage allowed is 198V, maximum voltage allowed is 242V

6. Power supply wiring, please refer to relevant regulations of the second part of electrical connections.


9/106

Modular Units


10/106


11/106

1.3. Outdoor Unit Dimension

YDOH80/100EVseries outdoor unit

Mounting hole spacing

YDOH120/140/160EVV series outdoor unit

Mounting hole spacing

1


12/106

YDOH80/100/120/140/160 outdoor dimension (Unit: mm)

1.4. Installation Requirements

The installation space requirement shown in the figure is a reference for cooling operation when the outdoor temperature is 35 .If the

design outdoor temperature exceeds 35 or the heat load exceeds maximum capacity in all the outside unit, take a even large space on the

intake shown in below figure.

When installed as a single unit:

SizemmModel

A B C D

YDOH80160 200 100 500 100

When installed in serial

Models A B C D E F

First 200 500 100 100 200 200YDO180~480EVN

Second 300 --- 200 --- 400 400

1


13/106

Note: 1. For First.

a. Front wall or adjacent unit height should be lower than 1500mm. Backside wall or adjacent unit height should be lower that500mm. No height limitation for the side wall.

b. If the wall or adjacent unit height beyond the maximum, expand 1/2 h1 and 1/2 h2 distance on the A and B clearance2. For Second no height limitation

1.5. Location selection

Select a location for installation that meets the following conditions and get the customers permission.

Select the location of the unit in such a way that neither the discharged air nor the sound generated by the unit disturbs anyone.

In places where air short-circuiting will not happen, it should ensure a sufficient space to prevent short c ircuiting cycle when installing

several units.

Places where there is no barrier at the air inlet and outlet.

The foundation is strong enough to support the weight of the unit and the floor is flat to prevent vibration and noise generation.

The piping length between the outside unit and the indoor unit may not exceed the allowable piping length.

Locations where the units suction vent and outlet vent do not generally face the wind. Wind blowing directly into the suction or outlet

vents will interfere with the units operation. If necessary, install some kind of obstruction to block the wind.

The space around the unit is adequate for servicing and the minimum space for air inlet and air outlet is available

1.6. Outdoor Installation Base and Placing the Unit

The Outdoor should be installed on a strong base to avoid the noise. The base could be solid concrete and height should be more than

150mm.

Make sure the unit is installed level on a sufficiently strong base to prevent vibration and noise. (Refer to below figure)

The height of the base should be at least 150mm from the floor.

Secure the unit to its base using foundation bolts. (Use four commercially available M12-type foundation bolts, nuts, and washers)

The foundation bolts should be inserted 21mm.

After the outdoor unit has been installed, please

check whether the outdoor unit is horizontal and the tilt angle

should be less than 10; if a shock absorber is equipped, please

inspect whether it is horizontal after the shock absorber has

been installed.

We propose to place a shock isolator between the foundation

and the outdoor unit base (such as the installation of rubber

isolation pads and damp spring isolators, etc. when rubber

isolation is selected, the thickness should be above 20mm;

while select spring damper isolation, the selection criteria

should be according to unit weight and vibration and noise

source.) Isolation devices should be correctly selected and

installed according to design requirements to meet the shock

isolating requirements and avoid the solid sound transmission

and the resonance phenomena; Models should normally be

provided by professional engineers and constructed by

professional personnel.

YDOH(C) 80/100/120/140/160 Outdoor unit mounting hole bit

size (Units :mm)

Model

A

(unit width)mm

B(mountinghole width)

mm

Mountingholequantity

80/100 1000 798 4120/140/160 1300 1098 6

Warning:

When the outdoor unit is higher than the lightning protection

device of a building, the original lightning protection device

should be adjusted or a new lightning protector should be

provided additionally, so that the protection device is higher

than the unit and meets relevant national requirements.

1


14/106

1.7. Wiring Diagrams - Outdoor Units

ELECTRICAL WIRING DIAGRAMS OUTDOOR UNITS


15/106

1


16/106

Part 2: Ceiling Concealed Indoor Units2.1 DATA SHEET CEILING CONCEALED INDOOR UNITS

1


17/106

DATA SHEET CEILING CONCEALED UNITS (ELECTRIC HEATER MODELS)

1


18/106

Notes: Standard setting of the ESP is 15Pa, and extra 5Pa (YDCC018-053, Nylon filter) or 12Pa (YDCC066-175, Aluminum filter) pressure

drop will be caused by the filter, EXV.

The standard offer is without electric heater. An option exists for auxiliary electric heater for heat pump.

* Data applicable to heat pump models only.

2.2. Dimension Data & Piping System

LAYOUT & DIMENSIONS CEILING CONCEALED UNITS

Models A B C D E

YDCC066/078

1205 1235 1450 1213 222

YDCC095/115

1505 1535 1780 1513 237

Models A B C D E

YDCC018/

020/025605 630 830 609 681

YDCC034 805 830 1030 809 881

YDCC045/

053910 935 1150 914 986

Note: At the delivery, the direction of the air return box lifting lug

of the electric cabinet is opposite to the direction of the location

indicated in the figure. When the unit is hoisted, please adjust

the lifting lug to the indicated direction.

2.3. Indoor External Pressure Setting

Ceiling concealed type indoor unit has 5 speed setting point on

indoor control board. You can adjust and select the 3 speeds for

High/Middle/Low fan speed according to the external static

pressure.

Out factory state, YDCC indoor unit ESP (External static

pressure) default setting is 15Pa. Please adjust the wring to set

the ESP as per demand. You can select three speeds

(High/Mid/Low) from five.

Three cable colors Red, Brown, Black connected with the

control board, stand for motor speed for Low, Mid and High

speed.)

Following table is just for recommendation.


19/106

Fan wiring board post codeIndoor Models

5 4 3 2 1

0Pa Red Brown Black

15Pa Red Brown BlackYDCC018-053

30Pa Red Brown Black







The illustration shows fan wiring under the board

2.4. Wiring Diagram Ducted Indoor Unit

CEILING CONCEALED INDOOR UNITS


20/106




21/106

2.5. INSTALLATION OF CEILING CONCEALED INDOOR UNITS

2.5.1. Required spacing of Ceiling Concealed Indoor

Units

Note: at the top of indoor unit should be more than 5mm away

from the roof; indoor unit at the bottom of water pan should be

more than 5mm away from the ceiling.Necessary spacing is required around the unit to ensure air

circulation and to be convenient for maintenance and repair.

2.5.2. Fixing the Indoor Unit

The indoor unit is hung on the screw suspender and leveled by the nut. In order to reduce noise and vibration, a shock isolator should be

provided between the unit and the screw suspender. Check whether the unit is level, so that the condensed water can flow away smoothly.

1 Hanger

2 Air return tube

3 Canvas air duct

4 Air return port

5 Drainpipe

6 Transition joint

7 Air outlet duct

8 Diffuser

9 Diffuser adapter

Note:

1. Please note that the pressure drop of YDCC018/020/025/034/053 return air and air outlet should not be higher than 30Pa, and

should not be higher than 80Pa;

2. Air return, air outlet, diffuser and air return port should have proper forms and dimensions, or otherwise air delivery may be influenced;

3. The air outlet cannot be too high from the ground;

4. The air outlet cannot be positioned at the place where it directly blows the people for a long period;

5. The air speed at the air outlet is generally about 3m/s; and the air speed at the air return port is commonly about 2m/s;

6. Use thermal insulation at the connections of air outlet or diffuser with the unit air outlet flange to avoid condensation;

7. The connection between air outlet duct, air return duct and the unit should be flexible connections to reduce vibration and noise;

8. Use thermal insulation at the outside of air outlet duct to avoid condensation.

2


22/106

2.5.3. DRAIN PIPE INSTALLATION

The condensed water exhaust outlet of the unit is 19mm, See

the attachment.

In order to ensure smooth drainage, the drainpipe should have

2% (20mm for every meter) downward gradient.

The main drainpipe is determined as per the numbers of the

indoor units and is required to be larger than or equal to 35mm.

Thermal insulation should be done for the drainpipe, and the

thickness of the insulating tube must meet the requirement.

Please try best to drain water into the floor drains or toilet and

other places where the water can be easily drained out.

After the drainpipe has been installed, the water test must be

carried on, so inspect whether water can be drained out

smoothly.

Water can be drained out the exhaust outlet and there is no

water leak at other places.

Attention: When the regular grade of the drainpipe cannot be

guaranteed, an assistant drain pump may be installed.

2.6. MAINTENANCE FOR FILTER

We suggest clean the filter for each 1000 running hours. Following figure illustrate the process of remove filer from the unit.

2


23/106

2

Part 3. Cassette Type Indoor Units3.1. PHYSTICAL DATA CASSETTE TYPE INDOOR UNITS

DATA SHEET CASSETTE INDOOR UNITS


24/106

3.2. DIMENSIONAL DATA CASSETTE TYPE INDOOR UNIT

LAYOUT & DIMENSIONS CASSTEET INDOOR UNITS

Models A B C D L S H H1 H2 H3 H4 H5

YDCK028/036 650 650 616 280 570 570 278 250 125 148 183 205

YDCK046 650 650 616 280 570 570 318 290 145 188 223 245

YDCK056/072/090 850 850 776 440 730 730 318 290 145 188 223 245

YDCK110/130 1050 1050 976 640 930 930 318 290 145 188 223 245

3.3. INSTALLATION SPACE

Model A(mm) B(mm)

YDCK028/036 250 10

YDCK046/056

/072/090/110/130290 10

2


25/106

Opening Dimensions and Positions for Suspension Bolts

Attach is the hanger bracket to the suspension bolt. Be

sure to fix it securely by using a nut and washer from the

upper and lower sides of the hanger bracket.

Dimensions for

OpeningSuspension Bolt

Models

A(mm) B(mm) C(mm) D(mm)

YDCK028/036/046 590 590 616 280

YDCK056/072/090 750 750 776 440

YDCK110/130 950 950 976 640

3.4. WIRING DIAGRAM OF CASSETTE INDOOR UNITS

2


26/106

3.5. INSTALLATION CASSETTE INDOOR UNIT

3.5.1. SELECT LOCATION

Select an installation site where the following conditions

are fulfilled and that meets with your customers

approval.

Do not install the unit in rooms where flammable gas or

alkaline acid substances are present.

Aluminum/copper coils and/or internal plastic

components can be damaged irreparably.

Do not install in workshops or kitchens; oil vapors

drawn in by treated air might deposit on the coils and

alter their performance or damage the internal plastic

parts of the unit.

Having sufficient strength to carry the weight of the unit

From where condensate can be easily run to drain

Where optimum air distribution can be ensured.

Where nothing blocks the air passage.

Where the false ceiling is not noticeably on an incline.

Where sufficient clearance for maintenance and service

can be ensured.

Where piping between indoor and outdoor units is

possible within the allowable limit.

3.5.2. FIXING THE SUSPENDING BRACKET AND UNIT

Mark position of suspension rods, water lines and

condensate drain pipe, power supply cables and

remote control cable.

Supporting rods can be fixed, depending on the type of

ceiling.

Fit suspension brackets supplied with the unit to the

threaded rods.

Do not tighten nuts and counter nuts; this operation has

to be done only after final leveling of the unit, when all

the connections have been completed.

Ensure the ceiling is horizontally level, otherwise

condensate water cannot drain.

The casing is fixed to the slab with 4 drop rods. The

rods should have two nuts and washers to lock the unit

in position. The Cassette brackets will be fixed. When

lifting the Cassette into position care should be taken

not to lift the unit by the drip tray, which could be

damaged.

Lift unit (without the air panel) with care by its four

corners only. Do not lift unit by the condensate drain

discharge pipe or by the piping connections.

Incline unit and insert it into the false ceiling. Insert the

rods into the bracket slot.

With minimum height (see table) false ceilings, it might

be necessary to remove some T brackets of the false

ceiling temporarily.

Using a level guide, line up the unit with a spirit level,

and keep dimension between the body and the lower

part of the false ceiling.

Line up the unit to the supporting bars of the false

ceiling tightening the nuts and counter nuts of the

threaded rods.

2


27/106

After connection of the condensate drain piping and

piping connections, check again that the unit is level.

The spaces between the unit and ceiling can now be

adjusted. Use the drop rods to make the adjustment. Check to ensure the unit is level. The drain will then

automatically be lower than the rest of the drip tray.

Tighten the nuts on the suspended rods.

3.5.3. DRAIN PIPE WORK

The unit is fitted with a condensate pump with a 500

mm lift

The unit is provided with 22mm bore flexible hose 300

mm long.

The flexible hose should be fitted into a 22 mm O/S

polyvinyl tube and sealed. The drain must be installed

with a downward slope.

On completion the drain line should be insulated.

3.5.4. FRESH AIR RENEWAL AND BRANCH DUCT

The side opening allows separate ductwork to be

installed for outside air intake and branch ducting.

Cut and remove anti-condensate insulating material.

Install your flanges and conduits to casing. Conduit can

be flexible polyester with spring core or corrugated

aluminum externally coated (dia.4 in.) with

anti-condensate material (fiberglass 12-25 mm

thickness).

Fresh air There is one (1) opening for connecting a

fresh air duct for YDCK028/036/046, and for

YDCK056/072/090/110/130. Order flanges (spigots)

and blanking plates as accessories separately.

NOTE:

1. Branch duct flange (Optional part)

2. Fresh air duct flange (Optional part)

3. Blanking plate (Optional part)

3.5.5. BRANCH DUCT AND FRESH AIR DUCT

INSTALLATION

YDCK028/036/046

YDCK056/072/090/110/130

2


28/106

BRANCH DUCT FRESH AIRMODEL

Dia(mm) QTY Dia(mm) QTY

YDCK028/

036/046

100 2 100 1

YDCK056/072/

090/110/130100 2 100 1

3.5.6. BRANCH DUCT AND FRESH AIR DUCT

POSITIONS

1. Look for the yellow sticker on the casing for location of

branch duct or fresh air intake connections.

2. The sticker is at the center of a knock out hole underneath

the casing insulation. Use a cutter and follow along the pre-cut

circular marking as shown and trim off the insulation.

3. Knock out the pre-cut hole.

4. Connect the flange on to the opening with 3 mm 12

mm tapping screws.

3.5.7. INTER CONNECTING WIRING

We recommend that shielded cable be used in electrically

noisy areas.

Always separate low voltage (5VDC) signal wires from power

line (230 VAC) to avoid electro-magnetic disturbance of

control system.

Do not install the unit where electromagnetic waves are

directly radiated at the infra red receiver on the unit.

Install the unit and components as far away as is practical (at

least 5 meters) from the electromagnetic wave source.

Where electromagnetic waves exist use shielded sensor

cable.

Install a noise filter if any harmful noise exists in the power

supply.

3.5.8. MOUNTING FRONT PANEL ASSEMBLY

Remove return grille from front panel.

Move the front panel to casing.

Tighten 4 screws.

3.6. FILTER REMOVAL FOR MAINTENANCE

Unlock the two fasteners on the front panel.

Open the grill downward with care.

Pull the filter out along the slot.

Clean the filter and reassemble

.


29/106

3.7. FAN BLOWER REMOVAL FOR SERVICE

3.8. CONDENSATE DRAIN PAN REMOVAL FOR

SERVICE

4.1. DATA SHEET OF HIGH-WALL INDOOR UNITS

ModelYDHW032H0NNOA-0C3 YDHW053H0NNOA-0C3 YDHW070H0NNOA-0C3

Cooling Capacity kW 3.2 5.3 7.0

Heating Capacity kW 3.7 5.7 7.5

Power supply V/Ph/Hz 220V/~/50Hz

Air Flow Rate** m3/h 600 800 1100

Number of

Blade

- 1

Number of

Motor

- 1

Power

consumption

W 60 60 70Fan

Operating

Current

A 0.3 0.3 0.35

External Static Pressure Pa 0

Control method - remote control

Width mm 1080

Height mm 330Dimension

Depth mm 220

Machine Weight kg 15

Liquid Pipe mm 6.35ConnectingPipes Gas Pipe mm 12.7


30/106

4.2. LAYOUT & DIMENSION

Model W (mm) H (mm) D (mm)

YDHW032 1080 330 220

YDHW053 1080 330 220

YDHW070 1080 330 220

4.3. HIGH-WALL INDOOR UNIT INSTALLATION

4.3.1. PREPARATION BEFORE INSTALLATION

Before doing any work, check the interior power supply

cord and the main breaker capacity are sufficient and

the installation area is sufficient and complies with the

requirements.

Check that the power supply available match the name

plate voltage.

Electrical work, wiring and cables must be in

compliance with national and local wiring codes and

standard.

Do not use the extension cables. In the case extended

cables are needed, use the terminal block.


31/106

4.3.2. SELECTION OF THE LOCATION

Models YDHW032 YDHW053 YDHW070

A 12cm 12cm 12cm

B 70cm 70cm 70cm

C 12cm 12cm 12cm

D 15cm 15cm 15cm

Caution: Do not install in a place that cannot bear the

weight of the unit.

4.3.3. FIXING THE BRACKET

1. Place the installation guide pattern on the designated

installation place and mark the hole position.

2. Drill a hole and mount installation plate.

3. After determining the pipe hole position. Drill the hole

at a slight downward slant towards the outdoor side.

4. Make 6 mm 4-6 holes, in the wall at the four corners of

mounting plate (bracket) then insert appropriate

mounting devices.

5. Install the mounting plate using 4-6 pieces of mounting

screw securely at four corners and tighten the screw

completely. Do not over tighten the screws and deform

the back plate.

MODEL 032/053 MODEL 070

4.3.4. WIRING

This indoor unit is ready for connection to the outdoor

unit.

Open the front grill.

Remove the screw from electrical box cover, pull the

electrical box cover away from the unit and set aside.

Remove the screw from fastener, pull the fastener

away from the unit and set aside.

Connect the cable.

Replace the fastener and electrical box cover

.

Or


32/106

CAUTION:

Never modify the unit by removing any of the safety guards or

by passing any of the safety interlock switches.

Connect the interconnecting cable correctly and connect the

connecting cable to terminal as identified with their respective

marking.

Do not damage the conductor core or inner insulation of power

supply cables and do not deform or crush the cables.

4.3.5. PIPING

The auxiliary piping can be connected in the directions shown

the above diagram. To connect the D, E and F direction, pipes

will be need to be extended

CAUTION:

Bend pipes carefully to avoid flattening or obstructing them if

the pipes are bent incorrectly, the indoor unit may be unstable

on the wall.

Carefully arrange pipes so that pipes do not stick out of the

rear plate of the indoor unit.

4.3.6. DRAIN HOSE

Drain hose is flexible and can be routed to suit various piping

arrangements. The drain line must include elbow trap (U

bend).

Connect a plastic condensate pipe with an internal diameter of

12 mm.

NOTE: The drain hose can be connected to the left or

the right side. For left and left rear piping (Factory

Standard)

3


33/106

4.3.7. INDOOR UNIT FIXING

Thread the indoor unit piping and cable through the hole.

Hang the top of the unit onto the upper ridge of them in mounting plate.

Make sure that the unit is correctly hung in place by sliding it to the left, then to the right.

Press the bottom left and bottom right hand corners of the unit against the mounting plate until the fixing prongs click into place in the

retainers provided to that effect.

4.4. OPTIMAL OPERATION

To achieve optimal performance, please note the following:

Adjust the air flow direction correctly so that it is not directed on people.

Adjust the temperature to achieve the highest comfort level. Do not adjust the unit to excessive temperature levels.

Close doors and windows on COOL or HEAT modes, or performance may be reduced.

Use TIMER ON button on the remote controller to select a time you want to start the air conditioner.

Do not put any object near air inlet or air outlet, as the efficiency of the air conditioner may be reduced and the air conditioner may stop

running.

Clean the air fitter periodically, otherwise cooling or heating performance may be reduced.

Do not operate unit with horizontal louver in closed position


34/106

4.4. MAINTENANCE

3


35/106

3

Part 5: Ceiling Package Indoor Units5.1 DATA SHEET CEILING PACKAGE INDOOR UNITS


36/106


37/106


38/106

5.2. Dimension Data & Piping System

LAYOUT & DIMENSIONS CEILING PACKAGE UNIT

YDCP018~112 (mm)

Models A B C D E F G H

YDCP018/022/028/032/036/040/045 782 620 200 738 705 504 527 162

YDCP050 982 620 200 938 905 504 727 162

YDCP056/063/071 1182 620 200 1138 1105 504 927 162

YDCP080 1182 620 220 1138 1105 504 927 182

YDCP090/112 1532 620 220 1488 1455 504 1277 182

5.3. Indoor External Pressure Setting

Out factory state, YDCP indoor unit ESP(External static pressure)default setting is 15Pa.Please adjust the wring to set

the ESP as per demand. You can select three speeds (High/Mid/Low) from five.

Fan wiring board

Post code

Indoor Models

5 4 3 2 1

0Pa Red Brown Black

15 Pa Red Brown BlackYDCP018/022/028/032/

040/045/05/05630 Pa Red Brown Black

0Pa Red Brown Black

15 Pa Red Brown BlackYDCP 080

40 Pa Red Brown Black


30Pa Red Brown BlackYDCP 090/112



39/106

The illustration shows fan wiring under the board


40/106

39

5.4. Wiring Diagram Ducted Indoor Unit

YDCP018-112 INDOOR UNITS


41/106

NOTE:

1. Pump application: the power wire of pump should be inserted in the motherboards CN_PUMP port, the float switch (water-lever switch)

should be inserted in the motherboards water-lever switch port;

2. TiO2 application: the power wire of TiO2 should be inserted in the motherboards CN_PUMP port, resistance should be inserted in the

motherboards CN4 port;

3. Water pump and TiO2 cannot be used at the same time;

4. Air outlet temperature sensor will be installed when Billing System is required;

5. Billing System and TiO2 cannot be used at the same time.

5.5. INSTALLATION OF CEILING CONCEALED INDOOR UNITS

5.5.1. Required spacing of Ceiling Concealed Indoor Units

Necessary spacing is required around the unit to ensure air circulation and to be convenient or maintenance an repair.

YDCP080/090/112

4

Noteat the top of indoor unit sh n 20mm away from the roof; indoor unit at the bottom of water pan should be more thanould be more tha

20mm away from the ceiling.

YDCP018/022/032/036/040/045/050/056/063/071


42/106

.5.2. Fixing the Indoor Unit

rew suspender and leveled by the nut. In order to reduce noise and vibration, a shock isolator should be

5

The indoor unit is hung on the sc

provided between the unit and the screw suspender. Check whether the unit is level, so that the condensed water can flow away smoothly.

Note:

e note that the pressure drop of YDCP018/022/028/032/036/040/045/050/056 /063/071return air and air outlet should not be

2 nfluenced;

y blows the people for a long period;

monly about 2m/s;

and noise;

5.5.3. DRAIN PIPE INSTALLATION

attachment.

very meter) downward gradient.

al to 35mm.

1. Pleas

higher than 30Pa, and YDCC080/090/112 should not be higher than 40Pa;

. Air return, air outlet, diffuser and air return port should have proper forms and dimensions, or otherwise air delivery may be i

3. The air outlet cannot be too high from the ground;

4. The air outlet cannot be positioned at the place where it directl

5. The air speed at the air outlet is generally about 3m/s; and the air speed at the air return port is com

6. Use thermal insulation at the connections of air outlet or diffuser with the unit air outlet flange to avoid condensation;

7. The connection between air outlet duct, air return duct and the unit should be flexible connections to reduce vibration

8. Use thermal insulation at the outside of air outlet duct to avoid condensation.

The condensed water exhaust outlet of the unit is 19mm, See the

In order to ensure smooth drainage, the drainpipe should have 2% (20mm for e

The main drainpipe is determined as per the numbers of the indoor units and is required to be larger than or equ

Thermal insulation should be done for the drainpipe, and the thickness of the insulating tube must meet the requirement.

moothly.

rain pump may be installed.

1 Hanger

2 Air return tube

3 Canvas air duct

4 Air return port

5 Drainpipe

6 Transition joint

7 Air outlet duct

8 Diffuser

9 Diffuser adapter

Please try best to drain water into the floor drains or toilet and other places where the water can be easily drained out.

After the drainpipe has been installed, the water test must be carried on, so inspect whether water can be drained out s

Water can be drained out the exhaust outlet and there is no water leak at other places.

Attention: When the regular grade of the drainpipe cannot be guaranteed, an assistant d

4


43/106

In the Johnson Controls YORK VRF System, the combination ratio should comply with the following condition

50% 130%

factor at the same time) Rated cooling capacity of

Note: actor at the same time of indoor units, its the ratio that the max. Total cooling capacity of

s mentioned above are not met, then another effort at unit selection is necessary.

.2. PERMITTED TUBING LENGTH AND HEIGHT DIFFERENCE

Ratedcooling capacity of Indoor Units

Rated cooling capacity of Outdoor Units

and Rated cooling capacity of Indoor Units (using

Outdoor Units.

is the using f

indoor units could start at the same time and Rated cooling capacity of Indoor units on the premise of units

normal operation.

If the two condition

6

OUTDOOR UNIT

Outdoor unit capacity (kW) 25.5138 kW

Actual pipe length (m) = a + b150

+ c + d + e + fMaximum permitted pipe lengthMaximum pipe length

bet itsEquivalent pipe length (m) 175

ween outdoor/indoor un

Outdoor above (m) 50Elevation difference between

outdoor/indoor units = H1 Outdoor below (m) 40Max. Elevation difference

tween indElevation difference be oor units = H2 (m) 15

Permitted pipe length for final Equiv r unit

40branch

alent pipe length between first branch and last indoo

(m)

.3. EQUIVALENT PIPE LENGTH

ipe length after

tity of elbow x (equivalent length of

converging pipe accounts for 1.0 meter equivalent length. When

mum

the size for gas pipe should be changed

in

6

Equivalent pipe length is the converted p

considering the pressure loss caused by elbow etc.

Equivalent pipe length =

Actual pipe length + Quan

elbow) + Quantity of Oil bending x (equivalent length of Oil

bending)+ Equivalent length of branch. Each branch junction

accounts for 0.5 meter equivalent length, each branch

the Y-type equivalent pipe length exceeds 90% of maxi

permitted pipe length, the size for gas side main pipe should be

increased by 1-size.

Example: For 16kW outdoor unit, when the equivalent pipe

length exceeds 65 m,

from 22.23 mm to 25.40 mm. When the size for gas side ma

4

pipe is increased by 1-size, the derating factor for capacity drop

will be reduced.

6.1. COMBINATION RATIO OF CAPACITY


44/106

Equivalent length conversion table of elbows and oil storage elbows

Tube d orageiameter Equivalent length of Equivalent length of oil st

mm elbowm elbowm

9.52 0.18 1.3

12.70 0.20 1.5

15.88 0.25 2.019.05 0.35 2.4

22.23 0.40 3.0

25.40 0.45 3.4

28.58 0.50 3.7

31.75 0.55 4.0

34.90 0.60 4.4

38.10 0.65 5.0

41.30 0.75 5.4

54.10 0.95 7.0

.4. PIPE SIZE SELECTION

6

Pipe size data sheet:

4

Outdoor unit capacity YDOH(C)80 YDOH(C)100 YDOH(C)120 YDOH(C)140 YDOH(C)160 YDOH(C)180

Between outdoor unit and the first branch tube

Liquid tube 9.52*0.8 12.7*0.8 15.88*1.0

Gas tube 19.05*1.0 22.23*1.0 25.4*1.0 28.58*1.0

Between branch tube and branch tube


45/106

Note:

When the equivalent pipe length between outdoor units and indoor units is 90m or more, the size of main pipes (both gas side and liquid side)

must be increased according to the following table.

Normal Installation 90m or moreOutdoor Unit

Capacit y Type Liquid Pipe Gas Pipe Liquid Pipe Gas Pipe

8 HP 9.52 19.05 12.7 22.23

10 HP 9.52 22.23 12.7 25.4

12 HP

14 HP12.7 25.4 15.88 28.58

16 HP 12.7 28.58 15.88 31.75

18HP

20HP

22HP

24HP

15.88 28.58 19.05 31.75

26HP

28HP

30HP

32HP

19.05 34.9 22.23 38.1

4

Outdoor unit capacityYDOH(C)

200

YDOH(C )

220

YDOH(C)

240

YDOH(C)

260-300

YDOH(C)

320-340

YDOH(C)

360-420

Between parallel outdoor unit and the first branch tube

Liquid tube 15.88*1.0 19.05*1.0

Gas tube 28.58*1.0 34.9*1.3 38.1*1.4

Between branch tube and branch tube


46/106

34HP

36HP

38HP

40HP

42HP

44HP

46HP

48HP

19.05 38.1 22.23 41.3

6.5. SELECTION OF REFRIGERANT PIPE MATERIAL

1). Refrigerant Pipe

Use the long straight pipe as much as possible to avoid frequent soldering.

Copper pipe to be used must comply with the SPEC (size, material, thickness, etc.) proposed by the manufacturer. It must be seamless

copper pipe.

Never use the copper which are for plumbing usage (internal surface is not clean enough).

2). Branch joint, elbow, header

L type elbow is usually used.

For branch joint, please use the products recommended by the manufacturer.

6.6. BRANCH JOINT SELECTION AND DIMENSION

1) Y-type branch selection and specificationFirst Y-type branch selection (according to outdoor unit capacity)

Outdoor CapacityHP Y-type Branch

8HP, 10HP Liquid: YBP-YL2B Gas: YBP-YG2B

12HP 24HP Liquid: YBP-YL3B Gas: YBP-YG3B

24HP 48HP Liquid: YBP-YL4B Gas: YBP-YG4B

The other Y-type branch selection

Y-type BranchTotal Outdoor unit Capacity (kW)

Liquid Gas

x 26 kW YBP-YL1B YBP-YG1B

26 kW x 31.5 kW YBP-YL2B YBP-YG2B

31.5 kW x 71 kW YBP-YL3B YBP-YG3B

71 kW x 180 kW YBP-YL4B YBP-YG4B

Y-type branch specification and dimension


47/106

Type Import Diameter (mm)

Converter Tube

(Interior diameter *

Exterior diameter)

YBP-YL1B

YBP-YG1B

19.05*22.23 (1)

15.88*19.05 (1)

12.7*9.53 (1)

YBP-YL2B

YBP-YG2B

22.23*25.4 (1)

19.05*22.23 (1)


48/106

YBP-YL3B

15.88*19.05 (1)

12.7*15.88 (1)

YBP-YG3B

28.58*31.75 (1)

25.4*28.58 (1)

19.05*22.23 (1)

Y

BP-YL4B

19.05*22.23 (1)

9.53*6.35 (1)

YBP-YG4B

38.1*41.3 (1)

34.93*38.1 (1)

28.58*35.1 (1)

22.23*19.05 (1)

22.23*15.88 (1)


49/106

2) Comb-type Branch Selection and Specification

Comb-type Branch Selection (according to outdoor unit capacity)

Total Outdoor Unit Capacity (kW) Comb-type Branch

x 26 kW YBP-CL1B YBP-CG1B

26 kW x 41 kW YBP-CL2B YBP-CG2B

41 kW x 71 kW YBP-CL3B YBP-CG3B

Comb-type branch specification and dimension

YBP-CG1B YBP-CL1B

Note

1. Each Y-type branch has a label of Only for R410A

2. Definition of interior and exterior diameter of

converter tube shown in right figure


50/106

YBP-CG2B YBP-CL2B

YBP-CG3B YBP-CL3B


51/106

6.7. Y TYPE AND COMB TYPE BRANCH JOINT CONNECTION

1. CONNECTING TYPE BY PURE Y TYPE BRANCH JOINT:

Outdoor unit

3. CONNECTING TYPE OF Y TYPE JOINT AND COMB

TYPE JOINT:

2. CONNECTING BY PURE COMB TYPE JOINT:

:

4. BRANCH JOINT INSTALLATION REQUIREMENTS:

Y-type branch junction should be installed in horizontal mode or vertical mode.

Comb-type branch junction should be installed in horizontal

Wrong Connection

5


52/106

Caution:

1. After the comb type distributor, the Y type distributor

connection cannot be used again or the repeated application

of the comb type distributor is not allowed.

2. Branch converging pipe must be installed in horizontal

direction.

6.8. SELECTION OF PIPE BETWEEN OUTDOOR

UNITS

When multi outdoor units are connected in parallel, outdoor unit

number should be set, the number should not be coincided.

1) THE PIPING LENGTH AND DIAMETER BETWEEN

OUTDOOR UNITS

Caution:

1. The length of liquid pipe and gas pipe :L1+ L2 5m,

L2+ L3 5m, L3+ L4 5m.

2. The diameter of liquid pipe and gas pipe :

The size for L1, L3 and L4 will be selected based on the model

of outdoor Unit.

L2 = L3 + L4, L0 = L1 + L2

Select from the following table:

Capacity Liquid pipe(mm) Gas pipe(mm)

8 HP 19.05

10 HP9.52

22.23

12 HP 14HP 25.4

16 HP

12.7

18HP 24HP 15.8828.58

26HP 34HP 34.9

36HP 48HP19.05

38.1

2) OIL BALANCE PIPE

The size for oil balance pipe is 6.35mm.

The total length of oil balance pipe between adjacent units is not more than 5m.

If the distance between two outdoor units is more than two meters, then in the gas piping a 200 mm high vertical trap needs to be installed

L1 200mm, L2 2m, L3 2m, L4 2m

5


53/106

3) Installation example - The location of Pipeline

a) Installation error:

b) Installation error

:

Correct installation method

For high wall unit, external EXV is standard. No options are available.

The model of EXV BOX must be consistent with the models of the indoor units.

Indoor unit EXV BOX Connection Remarks

YDHW032/053/070 YDEXB-18-4C Nuts Connection

Refrigerant Pipe Design

5


54/106

5

INSTALLATION

When EXV BOX is installed in the liquid pipe of the indoor unit, the length between indoor unit and EXV box , should not

exceed 5m. After the installation finished please connect the EXV control line into the indoor unit PCB. Note that the control

cable connections must be reliable, and the clamp firmly fixed. External EXV box cannot be connected with units supplied

with built-in EXV, otherwise the indoor unit will have no refrigerant flow.

WIRE CONNECTION EXAMPLE:

The EXV Box is supplied with a 3 mm core wire to connect indoor control board and EXV box. If the standard wire is not

long enough, please connect as explained in below pictures.

6.10. OIL TRAP DESIGN

Please use the oil trap design in the piping system as shown below.


55/106

Part 7. Refrigerant Pipe Connection

7.1. PRECAUTION OF REFRIGERANT PIPE CONNECTING

Refrigerant piping connections must be YORK corporate training by a professional installation or special designated

company personnel.

Tubing precautions:

The refrigerant tube must be the tubing with designated diameter;

Requirements of refrigerant pipe diameter and thickness (the minimum thickness) shown below

Table Min Thickness and Stiffness of Different Tubes

Exterior Diameter

[mm (inch)]Min Thickness (mm) Stiffness Level

6.35 (1/4) 0.8

9.52 (3/8) 0.8

12.7 (1/2) 0.8

15.88 (5/8) 1.0

O style (tube)

19.05 (3/4) 1.0

22.23 (7/8) 1.0

25.4 (1) 1.0

28.58 (1-1/8) 1.0

31.75 (1-1/4) 1.1

34.9 (1-3/8) 1.3

38.10 (1-1/2) 1.4

41.3 (1-5/8) 1.5

44.5 (1-3/4) 1.7

1/2H style (straight tube)

5

Note: While installing 19.05 tube, if it is O style, the min thickness should not be less than 1.2 mm.

The distributor must be installed horizontally or vertically;

The comb type distributor must be installed horizontally;

The comb type distributor is directly connected with the indoor unit, and no branch connection is permitted;

Electronic expansion valve (throttling box) must be installed vertically (as shown in the right figure).


56/106

On the air tube, an oil return elbow must be provided for vertical ascending of every 10m.

The Electronic expansion valve (throttling box) should be installed in the place that insensitive to noise and convenient for

maintenance.

Tube connection should comply with the symbol on the box. The box should be in vertical and the hug on top. (It is only for

the unit with exterior EXV)Refrigerant tube must be fixed in reliable (Indoor refrigerant tube cannot be placed directly on the weak stiffness ceilings)

It is recommended that a service valve should be installed on both main liquid tube and main gas tube for latter air tight test,

vacuuming and refrigerant charging.

7.2. CONNECTION OF REFRIGERANT TUBE

Tube placing flow process:

Installing indoor and outdoor units > cutting the tube to the required dimensions > temporarily installing the tubes >

Nitrogen protection > Welding > blowing off > Airtight test > Vacuum drying > Filling refrigerant > Thermal insulating.

Strictly observe three refrigerant tubing principles: Keep the tubes dry, clear and air-tight.

Capping of refrigerant tube:

During the construction, the pipe mouth should be packed or sealed in a good condition (as shown in the figure) to prevent

external moisture and sundries from entering the pipe.

Special attention should be paid when the following operations are carried out:

1. Prevent the sundries from entering into the pipe when the copper tube is threaded through the hole.

2. Prevent rainwater from entering into the pipe when the copper tube is threaded to the outside.

7.3. NITROGEN PROTECTION FOR WELDING COPPER TUBE

The nitrogen protection must be adopted during welding.

The pipe should be filled with nitrogen and then welded,

so as to prevent the formation of oxides in the pipe.

Attention:

1. Ensure that there is nitrogen in the pipe during

welding.

2. Nitrogen pressure should not be too high and little

positive pressure is tolerable, or otherwise, the welding

may not be firm enough.

5


57/106

7.4. REFFER TO THE RIGHT FIGURE FOR EXAMPLES:

1. Install the pressure regulator onto the nitrogen bottle;

2. Use an air-filled tube to connect the pressure regulator

with the inlet at the side of the liquid tube of the

outdoor unit.3. Use blind plugs to block all interfaces of the copper

tubes (including Position B) except for those at the

side of the indoor unit A.

4. Open the nitrogen bottle valve and adjust the pressure

regulator to 5kgf/cm2.

5. Check whether nitrogen flows into the liquid tube from

the side of indoor unit A.

6. Blow wash

Use the insulating material in hand to prop up the

nozzle.

When the pressure becomes too great and cannot be

propped up, release the insulating material quickly (the

1stblow wash).

Then, use the insulating material to prop up the nozzle

again (the 2nd blow wash).

When the nitrogen is used to blow wash the inside of

the tube, loose place a piece of rag or white paper at

the nozzle for inspection, until no dampness and

sundries appear.7. Close the main nitrogen valve.

8. Repeat the above operation for other indoor units,

including indoor unit B.

9. After the operation of the liquid tube is completed, the

above blow-wash operation should be carried out for

air tubes.

7.5. AIR TIGHT TEST

After the refrigerant tubes for outdoor unit and indoor unit has been connected, the airtight test must be done for the

connecting tube and the indoor unit, and the test pressure should be 4.15MPa. when the pressure slowly rises to the

specified pressure, it should be maintained for 10min,, and then soapy water or other foaming agent are applied to the

connection positions, such as welding seams, screwed joints and so on for leak detection. After it has been confirmed that

the system does not leak, the dwelling test should be performed for the system. The system is charged with air up to the

pressure of 4.15MPa, which is maintained for 6h and then the manometer readings should be recorded. After 24h, the

manometer readings are recorded again. No pressure drop means that the air tightness is up to grade. If pressure drop

occurs, the leaking source should be found out and mended, and then the airtight test is carried on again until it is up to

grade.

However, when the temperature at the pressurization is different from the ambient temperature, the pressure change of 0.13kg/cm2

may occur for every 1 and should be corrected.

Corrected value = (temperature at pressurization temperature at observation) 0.13


58/106

then conduct leak detection on the outdoor unit connecting pipe ports using halogen leak detection instrument, finally, if the air tight sound,

then open all of the connected outdoor unit oil stop valve.

Warning:

1. When the pressure is applied for the airtight test, both air and liquid tubes are filled at the same time, for fear of pressure unbalance at air

and liquid sides.

2. Do not connect outdoor with indoor unit during the air tightness test; otherwise, it may result in nitrogen released into the outdoor unit.

3. Do not check the R410A leakage using halogen detection instrument.

Vacuum drying of refrigerant tube

The so-called vacuum drying is to use a vacuum pump to turn the moisture (liquid) within the tube into the vapor (gas) and then to exhaust

it out of the tube, so that the inside of the tube is dry.

Operational sequence of vacuum drying method:

1. Vacuum drying (the 1st time) Connect a universal meter at the filler openings of the liquid tube and the air tube, and operate the

vacuum pump for more than 2h (The vacuum degree should be below -755mmHg). If 2h pumping cannot reach the level below -755mm

Hg, it means that there is moisture within the piping system or exist leak points, and the pumping should be continued for 1h. If 3h

pumping still cannot reach -755mmHg, please check whether there is an air leak port.

2. When vacuum holding test is carried out for 1h after the pressure reaches -755mmHg, the pointer of the vacuum meter does not rise,

indicating that it is up to grade, and the pointer rises, indicating there is moisture or a leak port inside.

3. Connect the refrigerant tank and liquid pipe service valve for additional refrigerant charging.

4. Fully open the stop valve, fully open all stop valves in liquid and gaseous pipe.

ATTENTION:

1. Vacuum pumping operation is performed from the liquid tube and the air tube at the same time (for various functional parts are attached

inside the indoor unit and may block out halfway). When the vacuum pumping is carried out, the vacuum pump cannot lose power,

otherwise the lubricating oil within the vacuum pump will be sucked into the system.

2. The air displacement of the vacuum pump must not be smaller than 40L/M. before the operation, the vacuum meter must be checked

out to ensure that its measurement range can reach -755mmHg.

3. An electronic check valve is needed for the vacuum pump to avoid oil return to the pump.

7.6. ADDITIOANL REFRIGERANT CHARGING

The amount of the refrigerant supplemented to each system should be calculated while make engineering drawings. The construction unit

should add the refrigerant as per the said amount. When there are several systems, please mark the individual refrigerant amount of each

system, to avoid the confusion of the complemented refrigerant among all systems.

Note:

Do not connect outdoor with indoor unit during the air tightness test; otherwise, it may result in nitrogen released into the outdoor unit.

After the indoor unit air tightness test, connect outdoor with indoor unit, and then filled into (not to be higher than the outdoor unit refrigerant

pressure) refrigerant and nitrogen mixture at the pressure around 0.4MPa, and then conduct leak detection on the outdoor unit connecting

pipe ports.

Air tight inspection and related operations for oil balance pipe connection: module unit combination, evacuate the oil balance pipe between

the outdoor unit (open the valve on the outdoor unit to use its filling of refrigerant or with an external refrigerant to evacuate the air), and


59/106

into the system.

4. When the refrigerant cannot be filled in completely, the operation of the compressor should be used during the trial operation to charge

the liquid refrigerant from the air tube; the air valve and liquid valve should be opened before the startup.

5. The filling amount of the refrigerant must be measured with an electronic scale and a person should be assigned to supervise the

charging of the refrigerant, for fear of over charging

Complement refrigerant calculation table:

Diameter of liquid tube(mm)Standard refrigerant

amount(kg/m)

Total equivalent length of liquid

tube(m)

Added refrigerant amount for

each tube(kg)

6.35 0.02 L1= 0.02* L1

9.52 0.06 L2= 0.06* L2

12.70 0.125 L3= 0.125* L3

15.88 0.18 L4= 0.18* L4

19.05 0.27 L5= 0.27* L5

22.23 0.35 L6= 0.35* L6

Gross amount of added

refrigerantM = 0.02* L1+0.06* L2+0.125* L3+0.18*L4+0.27*L5+0.35*L6- corrected value=

Model of the

unit

YDOH

80/100

YDOH

120/140/160

YDOH

180/200

YDOH

220/240/260

YDOH

280/300/320

YDOH

340/360

YDOH

380/400/420

YDOH

440/460/480

corrected

value0.6 kg 1.25 kg 1.2 kg 1.85 kg 2.5 kg 2.45 kg 3.1 kg 3.75 kg

7.7. THERMATL INSUALTION OF REFRIGERANT TUBE

Incorrect insulation workAll refrigerant tubes between all indoor and outdoor units are

thermally insulated with thermal-insulating cotton, which must be

pasted well, so that there shall be no condensate water during the

operation and the external water must not enter the

thermal-insulating cotton.

At the places of wall crossing or corners, the markers should be

made on the tubes, so that it is convenient for overhauling and

installation to prevent the tubes between systems are installed

wrongly.

PRECAUTIONS:

1. The calculated results must be recorded (work out a table).

2. When the outdoor unit is delivered from the factory, the filled refrigerant amount should be 10m. When the distance between the indoor

unit and the outdoor unit exceeds 10m, the complementary refrigerant should be filled as per the diameter and length of the liquid tube.

3. After the drying operation of the liquid tube has been completed, fill the liquid refrigerant from the shutoff valve at the side of the liquid

tube. After the vacuum pumping, the junction valve cannot be changed before the refrigerant is filled, for the replacement may bring air


60/106

Correct insulation work

Caution:1. If operation ambient temp. Lower than 10C, Liquid pipe must

be insulated too.

2. Insulation work must cover all the drainage pipe including joint

place, otherwise, will cause condensate water collect.

3. All welding and connection place should be insulated after

installatio

8.1. INSTALLATION PRECAUTIONS

WARNING:

The designated electric wire must be used to sully power for the unit. Never share the same power source with other electric appliances,

for fear of resulting in overloading risk. The fuses or breakers matching the operating voltage of the unit must be used. Never use the

electric wires or fuses exceeding Warning: The accessories specified by the company can only be used. The manufacturers or authorized

dealers are required to provide installation and technical services. If the control accessories are installed improperly, it may result in such

consequences as failure of the controller or electric shock, the appointed stages.

Attention: The grounding line must be installed for the unit. Never connect the grounding line with the gas pipe, water pipe, lightning

conductor or telephone lines connected to the ground. Improper grounding may cause an electric shock. Please regularly check whether

the grounding line of the unit is connected firmly with grounding terminals of the unit and grounding electrodes.

Attention: When the indoor and outdoor units are connected, the strong and weak current lines are distributed separately; for fear that the

communication and operation of the unit may be affected.

8.2. POWER SUPPLY AND COMMUNICATION WIRING OF THE WHOLE SYSTEM

WIRING REQUIREMENTS:

1. All work related to the electric appliances should be done by the professional electricians.

2. The power sources of the indoor unit and the outdoor unit should come from the same distribution box. The power lines and control lines

are provided with sleeves and kept in a certain distance.

3. The control signal line must be 2-cored shielded cable (RVSP20.75) to prevent the weak current signal from being interfered.

4. All electric wires and components are tested and conform to relevant national electrical requirements.

5. Each device (indoor unit and outdoor unit) must be equipped with a breaker and a leak protector.6. The connecting line must be firm and the electric lines or

other components must be covered with casings for fear of

loosening, which may result in overheat, shorting or fire.

7. If the signal cable and power cable are distributed in parallel,

there exists the possibility of false operation due to

electromagnetic coupling. The right table shows the

recommended values of suitable spacing when the control

cable is distributed in parallel to other cables

Amperage of power sourceParallel

spacing (D)

Below 10A 300MM

50A 500MM

100A 1000MMAbove 100V

Above 100A 1500MM

8. When the communication line is distributed outdoor, the special trucking must be installed for fear that the communication lines are aged

and damaged.

Part 8. Field Wiring


61/106

9. When the power line is provided with trucking, the waterproof treatment must be done to prevent the seeper in the trucking from flowing

into the power source and resulting in danger. When there are several systems, the markers must be made on the communication lines

for fear that the communication lines are connected incorrectly.

8.3. WIRING SPECIFICATIONS

8.3.1. OUTDOOR UNIT POWER SPECIFICAITON

Outdoor Unit

ModelPower Supply

Maximum input

current

(A)

Circuit Breaker

(Recommend)

(A)

Wire specification ( Recommend )

(mm2)

Main power wiring less than 20m/over 20m

YDOH80 380V 3N ~50Hz 22.2 32A 3P RVV 4mm2/6mm

2


2


2


2


2


2


2


2


2


2


2

YDOH300 380V 3N ~50Hz 74.2 100A 3P RVV 25mm2/35mm2


2


2


2


2


2


2

YDOH440 380V 3N ~50Hz 109.3 160A 3P RVV 35mm2

/50mm2


2


2

NOTE

1. The above recommended cable and circuit breaker selection is based on the requirements of wire trough under 40 ambient condition.

For the on-site status, please refer to the local norm.

2. If on-site difference appears (such as capacitor decreasing), please refer to IEC criteria and the requirements of the cable supplier.

3. For the parallel connection system, circuit breaker should be installed not only in the main power circuit but also in the power circuit of

each outdoor unit.

4. Only copper cables can be used.

5. The table above is for reference only wire specifications, concrete specifications, please wire the norms according to the local selection.

6


62/106

8.3.2. POWER WIRING SPECIFICATION FOR CEILING CONCEALED INDOOR UNIT

With Electric HeaterWithout Electric Heater

With 2# Electric Heater With 4# Electric Heater

Indoor Unit Model Power Supply Max

Current

(A)

Wire Spec

(Recommend)

(mm2)

Max

Current

(A)

Wire Spec

(Recommend)

(mm2)

Max

Current

(A)

Wire Spec

(Recommend)

(mm2)

YDCC018 220V~50Hz 0.26 1.0 4.76 1.5 --- ---

YDC 220V~50Hz 0.26 1.0 4.76 1.5 --- ---

YDC 220V~50Hz 0.26 1.0 4.76 1.5 --- ---

YDCC034 220V~50Hz 0.35 1.0 4.85 1.5 7.65 1.5

YDCC045 220V~50Hz 0.46 1.0 4.96 1.5 7.76 1.5

YDCC053 220V~50Hz 0.52 1.0 7.82 1.5 9.52 1.5

YDCC066 220V~50Hz 0.85 1.0 8.15 1.5 9.85 1.5

YDCC078 220V~50Hz 1.0 1.0 10.0 1.5 15.5 2.5

YDCC095 220V~50Hz 1.29 1.0 10.29 1.5 15.79 2.5

YDCC115 220V~50Hz 1.31 1.0 10.31 1.5 15.81 2.5

YDC140 220V~50Hz 2.80 1.0 17.30 2.5 26.30 4.0

YDCC175 220V~50Hz 3.18 1.0 17.68 2.5 26.68 4.0

NOTE:

The table above is for reference only wire specifications, concrete specifications, please wire the norms according to the local selection

8.3.3. POWER WIRING SPECIFICATION FOR CASSETTE INDOOR UNIT

Without electric heater With 2# electric heater

Indoor Unit Model Power supply Maximum current

(A)

Wire

spec(Recommend)

(mm2)

Maximum current

(A)

Wire

spec(Recommend)

(mm2)

YDCK028 220V~50Hz 0.20 1.0 4.74 1.0

YDCK036 220V~50Hz 0.32 1.0 4.86 1.0

YDCK046 220V~50Hz 0.32 1.0 7.14 1.5

YDCK056 220V~50Hz 0.41 1.0 7.23 1.5

YDCK072 220V~50Hz 0.52 1.0 9.61 1.5

YDCK090 220V~50Hz 0.85 1.0 9.94 1.5

YDCK110 220V~50Hz 1.05 1.0 10.14 1.5

YDCK130 220V~50Hz 1.09 1.0 10.18 1.5

NOTE:1. The table above table is for reference only wire specifications, concrete specifications, please wire the norms according to the

local selection.

2. All on-site wiring and components must be installed by professionally qualified electrician and must comply with local andnational norms.

6


63/106

8.3.4. POWER WIRING SPECIFICATION FOR WALL MOUNTED INDOOR UNIT

Indoor Unit Model

Heater power

input

()

Current

(A)

Wire spec

(Recommend)

YDHW032 0.3 RVV21.5

YDHW053 0.3 RVV21.5

YDHW070 0.35 RVV21.5

8.3.5. POWER WIRING SPECIFICATION FOR CEILING PACKAGE INDOOR UNIT

Without Electric Heater With 2# Electric Heater With 4# Electric HeaterIndoor

UnitModel

Power

Supply Max Current

(A)

Wire Spec

(Recommend)

(mm2)

Max Current

(A)

Wire Spec

(Recommend)

(mm2)

Max

Current

(A)

Wire Spec

(Recommend)

(mm2)

YDCP018 220V~50Hz 0.16 1.0 4.66 1.5

YDCP022 220V~50Hz 0.16 1.0 4.66 1.5

YDCP028 220V~50Hz 0.20 1.0 4.70 1.5

YDCP032 220V~50Hz 0.21 1.0 4.71 1.5

YDCP036 220V~50Hz 0.22 1.0 4.72 1.5

YDCP040 220V~50Hz 0.30 1.0 4.80 1.5

YDCP045 220V~50Hz 0.30 1.0 4.80 1.5

YDCP050 220V~50Hz 0.33 1.0 7.63 1.5 9.43 1.5

YDCP056 220V~50Hz 0.46 1.0 7.76 1.5 9.56 1.5

YDCP063 220V~50Hz 0.48 1.0 7.78 1.5 9.58 1.5

YDCP071 220V~50Hz 0.48 1.0 7.78 1.5 9.58 1.5

YDCP080 220V~50Hz 0.60 1.0 9.70 1.5 15.10 2.5

YDCP090 220V~50Hz 0.90 1.0 10.00 1.5 15.40 2.5

YDCP112 220V~50Hz 1.25 1.0 10.35 1.5 15.75 2.5

NOTE:

The table above is for reference only wire specifications, concrete specifications, please wire the norms according to the local selection

6


64/106

8.3.6. COMMUNICATION WIRING SPECIFICATION:

RECOMMENDED MODEL OF COMMUNICATION LINE: RVSP20.75

8.4. FIELD WIRING DIAGRAM

POWER DISTRIBUTION DIAGRAM OF THE UNIT

Precautions:

A system is controlled with an independent switch and several systems cannot be controlled with a switch, or an indoor unit in a system

share a control switch with other system, while other indoor units are controlled with another switch

8.5. POWER LINE CONNECTION OF OUTDOOR UNIT

Note:

The unit must be grounded reliably.

6


65/106

8.6. INDOOR UNIT POWER LINE WIRING

220V, N~, PE, 50Hz

8.7. COMMUNICATIONS NETWORK

OUTDOOR UNIT COMMUNICATION LINE WIRING DIAGRAM:

Multiple outdoor units in parallel, communication wirings are shown below. If there is only one outdoor unit, its no needs to connect.

Attention:

Outdoor unit and indoor unit communication line wiring diagram: A

6


66/106

Attention:

or unit communication wire can only connect up to 16 indoor units. If the indoor units are more than 16, it needs to be

or

Each outdoor unit has a dip switch to set the quantity of indoor unit connected with this outdoor unit. If the setting quantity is not same as

connection, otherwise it will have a failure.

ROL OF THE WIRING DIAGRAM:

. A wired control of one indoor unit.

or unit

Each outdo

connected to another outdoor unit. For example, YDOH480 have three outdoor units, the whole system can connect up to 48 indo

units.

the actual unit that connected, the system will not run correctly.

The indoor unit of TB2, TB3 (TB2 in, TB3out) should not converse

INDOOR UNIT AND WIRED CONT

1

Indo

. A wired control of a multi-indoor unit (MAX4)2


67/106

3. Indoor unit and remote control receiver wiring diagram:

9.1. CAUTION:

Warning:Unit initial boot or reboot after a long power outages, it is important to power on for more than 8 hours before operate the

unit.

Warning:Do not attempt to repair the unit by user. If the controller repaired improperly, may cause electric shock or damage to the

controller, such as the consequences. User if there is any need for repair, please contacts the manufacturer.

Warning:To carry out the maintenance, please cut off power supply. Do not rinse units with water directly, so as not to lead to

controllers failure or electric shock.

Warning: Do not use sharp objects to press the button, which will damage the controller; do not distort or pull the controller wires, so

as to avoid damages of controller; do not use benzene, diluents or chemical cloth to smear the controller, or else it may lead to bleeding or

mechanical failures.

Warning:Air-conditioner use in the season, all the indoor unit must be power, otherwise, may occur as a result of system detects the

num

.2. CONTROL SYSTEM INITIALIZATION AND ADDRESS ASSIGNMENT

ring installation is completed, the system must be initialized before the operation;

eed to conduct initial setting and address

Each outdoor unit has a dip switch to set the quantity of indoor unit connected with this outdoor unit. If the setting quantity is not same as

rk for connecting (X, Y), pay attention to distinguish them from that ofindoor units (A, B).

ber of indoor unit cannot operate below normal phenomenon.

9

Notes:

After wi

After installation or any control board in the system are replaced, the unit control system n

assignment

the actual unit that connected, the system will not run correctly.

Each outdoor unit has its own independent communication netwo

Part 9. Control System Initialization Setting


68/106

During address allocation, mandatory shutdown and test mode, can only be 1# unit to operate, other unit operation is invalid

Allocated on the outdoor unit code switch settings, must each have a separate outdoor unit settings, including: an outdoor unit address,

read the following specific operation.

, to carry out the operation

Remarks

the connected indoor unit, quantity, etc.

Outdoor fan low-noise operation of only 1# set up unit in place effective.

THE INITIALIZATION STEPS:

To initialize operation, please carefully

Attachment: outdoor unit, respectively

Operation 1#outdoor unit 2#3#outdoor unit

Unit Model ok ok Factory settings

This unit to connect the number of

indoor unitok ok Initialization settings

The compressor unit switch ok ok Factory settings, the compressor fails, can be re-instated

Address allocated to the unit code ok ok Initialization settings

System No. ok The use of DVRF individual charging system need to set up

Low-noise operation ok When its necessary

Automatic Address Assignment ok Initialization settings

Reset procedure ok ok rationsDebugging and maintenance ope

Test operation ok Debugging unit operation

9.2.1. INDOOR CONTROL BOARD DIP SWITCH SETTING

re two dip switches on the indoor control board, DIP1 and DIP2, which is illustrated in following pictureThere a


69/106

IP1 switch setting:

IP1 switch is for setting the special features of indoor unit.

Function definition Code position Remarks

D

D

No. DIP 1 Switch

1 S1 Undefined Back up

S2=0 Heat pump2 S2 Cooling only / Heat pump settingS2=1 Cooling yonl

S3=0 Without unctionauto restart f3 S3 Auto restart

S3=1 With a ctionuto restart fun

S4=0 Room card control without auto restart4 S4 Room c control

Roo tartard / Remote

S4=1 m card control with auto res

Note

2 Cooling only / Heat pump

g of S2 must be consistent with outdoor unit. If the outdoor unit is cooling only the indoor unit should set as cooling only too

en Dip1 S3=1, the indoor unit has the restart function. The indoor control board will record the setting mode before power off. It will

estart when power on again, the default setting temperature of cooling is 26and heating 24.

n the control board, there a room card connection as showed in the picture. If you need this function, please order an accessory from the

able when it is connected.

Whatever S4=0 OR S4=1, when the switch signal is from 0 change to 1

rd

to on or from open to close), but it can be

to on or

S

The settin

otherwise it may cause failure.

S3 for Auto Restart Function

H

remember the operation mode and r

S4 for Room Card Function / Remote control function setting

O

factory to connect with the control board and room card. This function will be avail

It also can be used as a remote controller as same as the room card.

(from on to off or from close to open), indoor will stop running and reco

indoor operation mode.

If S4=0, It will not Auto restart when the switch signal is from 1

change to 0 ( from off

controlled by the wire controller or wireless controller.

If S4=1, It will remember the last operation mode and auto restart

when the switch signal is from 1 change to 0 ( from off

from open to close), the default setting temperature of cooling is

26C and heating 24C.

N

his function only detect the status change signal to control the indoor unit, but whatever i t is in open or close status, the indoor unit can

controlled by local wire or wireless controller.

.

ote:

T

also be

Power-down memory function: when abnormal power-down the operation mode will be stored in the indoor unit and then after the

power-up indoor unit will return the mode automatically

DVRF_ID V2.00K Indoor control motherboard DIP2 switch setting determines the type of indoor unit, the specific location of the

corresponding control panel as follows:


70/106

DIP2 switch setting

DIP2 switch is for setting the indoor model definition. Detailed refer to following figures.

OOR CONTROL BOARD DIP SWITCH

ETTING

8.2.2. OUTD

S

Outdoor has 4 Dip-switches for function setting.

Note:

DIP 1 is for PC centralization control definition, not available

1. DIP 2 Setting:

DIP2 dial code used to set the outdoor unit of some basic

formation

here.

configuration in

DIP2-6 to DIP2-8 is used for outdoor unit model set table

DIP2-6 DIP2-7 DIP2- 8 Outdoor unit model

OFF OFF OFF 8HP

OFF OFF ON 10PH

OFF ON OFF 12PH

OFF ON ON 14PH

ON OFF OFF 16PH

ON OFF ON Back up

ON ON OFF Back up

ON ON ON Back up

lid settings

DIP2-3 DIP2-4 DIP2-5 Outdoor unit compressor whether to allow work

DIP2-3 to DIP2-5 is used for outdoor compressor unit is va

OFF OFF OFF Outdoor modules prohibit all compressors running

OFF OFF ON Outdoor modules with prohibit runningin the permit to run the compressor 3#, 1# and 2#

OFF ON OFF Outdoor modules of 2# permit compressor operation, and 1# 3# prohibit running

OFF ON ON Outdoor modules of 2# and 3# compressor operation permit, 1# prohibit running

ON OFF OFF Outdoor modules within the permit to run the compressor 1#, 2# and 3# prohibit running

ON OFF ON Outdoor modules within the 1# and 3# permit the compressor to run 2# prohibit running

ON ON OFF Outdoor modules within the 1# and 2# compressor operation permit, to prohibit operation 3#

ON ON ON Outdoor all modules are allowed to run the compressor


71/106

Note:

. The factory default permit all compressors are running, that is 3, 4, 5 are in ON state even though the outdoor only has 2 compressor.

ctory default setting is all the compressors can run normally, that means 3, 4, 5 all in the status of ON.

. DIP 3 Setting: DIP3-2 to DIP3-6 is used to set the quantity of indoor units that connected with this outdoor unit. If the setting quantity is

n

1

2. The fa

3. For the parallel connection system, the whole system cannot run unless at least one digital compressor runs normally. But the module

that digital compressor is locked will not startup.

4. In parallel connection system, the whole system cannot run heating mode, unless both at least one digital compressor and normal

compressor in each module unit are available. But for the unit that digital compressor is locked, it only runs in the startup process, then

shuts down and exits normal heating operation.

DIP2-1 to DIP2-2 is used for PC centralization control definition, not available here.

2

ot same as the actual unit that connected, the system will not run correctly.

DIP3-2 DIP3-3 DIP3-4 DIP3-5 DIP3-6

The module by

Connecting the number

Of indoor unit

OFF OFF OFF OFF OFF 0

OFF OFF OFF OFF ON 1

OFF OFF OFF ON OFF 2

OFF OFF OFF ON ON 3

OFF OFF ON OFF OFF 4

OFF OFF ON OFF ON 5

OFF OFF ON ON OFF 6

OFF OFF ON ON ON 7

OFF ON OFF OFF OFF 8

OFF ON OFF OFF ON 9

OFF ON OFF ON OFF 10

OFF ON OFF ON ON 11

OFF ON ON OFF OFF 12

OFF ON ON OFF ON 13

OFF ON ON ON OFF 14

OFF ON ON ON ON 15

ON OFF OFF OFF OFF 16

Note:

Each outdoor unit can only conn to 16 ind its. If the i units are to another outdoor

r example, YDOH480 has three outdoor units, the whole system can connect up to 48 indoor units.

ect up oor un ndoor more than 16, it needs to be connected

unit. Fo

DIP3-2 is used to set Outdoor fan low-noise operation. Only master unit need to set if needed, salve unit dont need to set. Suggest you to

use the default setting OFF, T3 unit are not allowed to set to ON.

DIP3-1 Description

OFF Default design

ON Fan speed wil l be down to low speed appl ication between 21:00 to 8:00for low noise

7


72/106

7

3. DIP 4 Setting: dial coDIP4 de modules used to set the address

9.3. ADDRESS ASSIGNMENT

nly effective on master unit.Address assignment operation can o

Note: the procedure press the reset button is equivalent to

-power control system, when re-change the settings, you can

SET / VACUUM MODE

he initial installation must be carried out this operation).

d then the

automatic address distribution can be operated. All the indoor

and outdoor electronic expansion valves can be reset, and

oller

m

n pressing down

actory default system for only one outdoor unit modules, so

initial power to detect the number of outdoor unit does

re

press the button to make settings effective. System

power-debug to run:

1. THE SYSTEM RE

(t

The mode can force the system to shut down, an

opened to maximum 480 steps, which can be used for the

vacuum pumping of the system, at the time, the indoor unit

operation should be locked (the operation of the linear contr

and the telecontroller is not effective). Under the normal alar

free state, press down the reset/ vacuum Key and then

release it, the system will operate in this mode for the automatic

address distribution firstly. If the address is falsely distributed,

the error address distribution information will be displayed; if the

address is normally distributed, the indicator light of the reset/

vacuum mode is shining, and the system will

be forced to shut down at the same time, and the indoor and

outdoor EXV will be opened to maximum. Whe

Notes:

the Key again, the system will be back out of the reset/

vacuum mode. The flow diagram is as follows:

F

after the

not match with the factory default, it will have a communication

failure. System must do the address automatically assignment

(in accordance with the above steps do the address assignment

and no needs to care about whether the alarm appeared), and

only after the success of the allocation, the system will be

effective the current state of preservation of the outdoor unit,

inter-unit communication failure automatic recovery

2. The test operation mode

According to the environmental temperature the mandatory refrigeration operation is running and locked indoor unit operations (wired

perations are invalid), running 30 minutes later, collected in accordance with the system parameters tocontrol and remote control o

determine whether the system is normal ; No alarm in the shutdown mode, press the 1# outdoor unit control panel button "test" more than 5


73/106

seconds after release, the system will enter a test run, when the LED indicator light directed normal refrigeration, then after 30 minut

there is no alarm, the system automatically exit test mode, while the implementation of the entire system shuts down the operation. When

after 30 minutes, testing to failure, there are LED indicator light shows that the corresponding alarm information at this time after solve the

fault, the system needs to reset. The test mode is running, if you press 1# outdoor unit control board "test" button, the system will be a

mandatory exit test run.

3. The system forced shut down

System allows the user to

es, if

shutdown the entire system in the debug process.

t / vacuum" key of 1# outdoor unit immediately, then the release the System will be forced to shut down.

tween ON and OFF for each pressing.

eration state will be displayed when starting

g

1

It can be switched among all operation modes for each

It can be switched between the automatic high middle

ir speed for each pressing

1

System is running press the "rese

10.1. REMOTES OPERATING INSTRUCTION

1.1 Exterior d

iom-york vrf.pdf

Documents