integrated heat pump water heater
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Integrated Heat Pump Water Heater
Models: ATI66& ATI50INSTALLATION AND OPERATINGINSTRUCTIONS
Please read this manual carefully prior to installation.
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CONTENTS
A. IMPORTANT REMARKS 4
B. DESCRIPTION OF HEAT PUMP 5
C. INSTALLATIONINSTRUCTIONS 6-
7
D. PCB PANEL: OPTIONS & INSTRUCTIONS 8-10
E. MAINTENANCE AND SERVICE 11-12
F. UNIT CIRCUIT DIAGRAM 13
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WARNINGS:
1. This unit must be installed byAUTHORIZED personnel only. Manufacturer cannot be heldliable for accident or injuryresulting from incorrect installation or operation of the unit.
2. Do not have the power supply to the unit on during installation or servicing of the unit.3. Unit must not be installed near flammable objects.WATER TEMPERATURE ADJUSTMENT
Safety and energy conservation are factors to be considered when selecting the water temperature setting via the waterheaters user interface. Water temperatures above 125F can cause severe burns or death from scalding. Be sure to readand follow the warnings outlined on the label pictured below. This label is also located on the water heater near the top ofthe tank.
Foryoursafety,theinformationinthismanualmustbe
followedtominimizetheriskoffireorexplosion,electric
shock,ortopreventpropertydamage,personalinjury,or
lossoflife.Besuretoreadandunderstandtheentire
OwnersManualbeforeattemptingtoinstalloroperatethis
waterheater.Itmaysaveyoutimeandcost.PayparticularattentiontotheSafetyInstructions.Failuretofollowthese
warningscouldresultinseriousbodilyinjuryordeath.
Shouldyouhaveproblemsunderstandingtheinstructions
inthismanual,orhaveanyquestions,STOPandgethelp
fromaqualifiedservicetechnicianorthelocalelectric
utility.
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A. Important remarksPlease note the following before installing the unit:
1. This unit is for indoor installation only.
2. Ambient temperature range for operating theheat pumpis35~110.3. The air vent (for exhaust air) of the unit needs a minimum clearance of3feet from the ceiling. Do not
insert your hand or any object into the vent.
4. Ensure that the unit is installed on a flat surface. Unit should be secured properly to the base and
should stand in an upright position.
5. While moving or installing the unit, ensure that the unit does not incline more than 30degrees.6. To let the unit run efficiently, install the unit at a place with properventilation.7. Ensure that the unit is installedon a dry surface. Water inflow and outflow lines should be sealed to
prevent leaks. Condensate water should be drained.
8. Ensure that the unit is wired to a 220V power outlet that is rated for at least 30amperes.9. Do not change wiring scheme. Ensure wiring safety standards are met. Ensure earthing.
10. Before turningon the unit, ensure the unitis full with water.
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B. Description of heat pump parts
Unit constructions (outside):
-2
-1
Decoration Bar
Top CoverAir Outlet
ScreenPanel
ondensate Overflow
Back-up Heater 2
Hot Water Outlet
Primary electric heater
Cold Water Inlet
Supporting frame
Hand Grip
Vent Pipe
Upper Rim
Ventilation Fan
Electric Board
Compressor
Thermostat Controller
Electric Heater Cover
Anode opening
Decoration Panel
Left/Right Decoration Bar
Evaporator
Tank Cover
Condensate DrainHole
Host Chassis
hassis Installation board
Drainage hole
Safety /T&P valve
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C. Installation instructions
Note:
1. Unit should be installed indoors in an unobstructed space. Minimum clearance space (in millimeters) is
highlighted in the figures below. Air outlet vent maybe connected to a 6-inch (diameter) air duct.
(Fig.1) (Fig.2)
2. Unit should stand vertical at 90degreesdo not let the unit lean against a wall or another object.3. Ensure proper ventilation in the area where the unit is installed.
5. Ensure both condensate water pipes are drained.
6. For water inlet and outlet connections, please refer to Fig.3below.7. Water pressure inside the tank must not exceed 0.7MPa. Ensure T&P valve is operational.
8. Inlet water must have a minimum pressure of0.1MPa.9. Ensure the water tank is full with water before turning on the system.
600mm
500mm
800mm
MODETIMER
CLOCK ON/OFF
600mm
800mm
ON/OFFCLOCK
T I M E R M O D E
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Installation diagram:
(Fig. 3)
MODETIMER
CLOCK ON/OFF
()
()
Safety Valve Three-port ValveFilterWater Inlet
Water Supply
Ball
Air Outlet
Drainage Pipe
Hot Water Outlet
(Hot Water
Vent
Air Inlet
Condensate Overflow drain
Condensatewaterdrainage
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D. PCB panel: Options & Instructions
1. Panel -Operation:
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2. Panel -Display:
:55,""
Set Temperature
High Temperature
Alarm
Auxiliary Heater
StatusHTG: HeatingDEF: Defrost
WARM
Working Mode
Time adjustment
Time
Timer On
Timer Off
Timer Period
Water Temperature
Temperature Gradient
Note:When the water temperature exceeds 131,this indicator will be lighted.
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3. FactorySettings:
Type Code Parameter Name Range Factory Setting Unit Remark
Temperature
Control
F11 Set temperature 90-135 135
F12 On/off temp differential 154 10 F13
Heat pump stop highestambient temp.
42130 110 F14 Heat pump stop lowest ambient
temp.040 32
F15Temp differential to re-start the
heat pump120 9
Compressor F21 Compressor start delay 010 3 minuteDefrost
F31 Defrost start temp. -2077 28 F32 Defrost finish temp. 0 122 77
F33 Defrost start time 1999 20 minuteF34 Max. defrost time Off, 199 5 minute
4. Error Handling:
ERROR CODE ERROR STATUS REASONS ERROR HANDLINGA1 Thermal sensor alarm
Water temp. sensor
malfunction.
1. Check the water temp. sensorconnection.
2. Change the water temp. sensor.
A2Condenser coil sensor
alarmCondenser coil temp.sensor
malfunction.
1. Check the condenser coil temp.
sensor connection.
2. Change the coil sensor.
A3 Exhaust sensor alarmExhaust temp. sensor
malfunction.
1. Check the exhaust temp. sensorconnection.
2. Change the exhaust temp. sensor.
A4Ambient temp. sensor
alarmAmbient temp. sensor
malfunction.
1. Check the Ambient temp. sensorconnection.
2. Change the ambient temp. sensor.
A5Low /High pressure
alarm
1.1. High pressure protectionswitch on.
1.2. Ambient temp. too high.
2.1. Low pressure protectionswitch on.
2.2. Refrigerantleak.
1.1Check or change the high pressure
protector.1.2. Check if the surround temp. is too
high.2.1. Check or change the low
pressure protector.2.2.Check refrigerant level.
A6
(Auxiliary) electric
heater protection
overheat alarm
1. Electric heater protectionswitch on.
2. Tank water temp. too high.
1.Check if the water temp. is as LCDdisplay, or if water temp. is too high.
2. Change the Electric heater.
A7Exhaust temperature
too high1.Refrigerantleak. 1.Check refrigerant level.2. Change lubricating oil in
compressor.
-- Blank screen 1. No power.2. Panel wiring problem.
1. Check the power line and voltage.2. Check panel wiring. Change panel
if needed.
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E. Maintenanceand serviceExamination before trial run
1. Check the water tank is filled with water, and open the water outlet tap till water flow out.
2. Check the water pressure is normal (0.15Mpa~0.7Mpa).
3. Check the air inlet oroutlet is well connected; and the air outlet pipe heat insulation is completed.
4. Check the power supply voltage is normal, whether according with the nameplate requirement. (Range
10%).
5. Check whether the equipped parts are screwed /locked well.
6. Check whether the wirings are according with the Circuit diagram, and the earth-wire is connected.
7. Check whether the wind inlet and outlet has been cleaned up and no obstacle.
8. Check whether the condensate drain pipe is connected well and no blockage.
9. After power-ON, check the control panel display is normal.
Trial running
1. After the machine starts, to hear and determine whether there is abnormal sound or collision during
operation, if there is abnormal sound, stop the unit immediately and check for it until there is no
abnormal sound to continue operation.
2. For the first time power on, the compressor will have 3minutes delay protection function.3. Observe whether the drainage of condensate water is smooth, prevent the chassis stagnant or spill
water.
4. For the first time discharge hot water or start the units after a long time closure, the water tap of outlet
pipe may flow muddy water, this is a normal phenomenon, and continue to drain for a period of time can
be cleared.
5. After stop operation for a long time, there may have condensation water hereabout the air outlet or pipe(especial in humidity weather), this is a normal phenomenon, use a dry washcloth to clean it or by air
dry.
6. The advance setting parameters of the operation panel has been set at the factory, users no need toreset it, the maintenance person should be carefully set if needed.
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E. Maintenanceand service
Heat Pump main unit disassembly
Follow the steps in Figures 4 & 5 to disassemble the unit.
(Fig.4) (Fig.5)
1.Slideout Control panel along the slot.
2. Loosen the PCB panel wire.
3. Unfasten the decorative plate screwand removethe decorative panel.4. Loosen thescrewson this metal bar.5. Loosen the bottom screws of the top cover.
6. Remove the power line from the top cover
4
5
7
6
3
2
1
MODETIMER
CLOCK ON/OFF
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F. Unit circuitdiagramHeat pump WITH auxiliary electric heater:
L1 Line1
L2 Line2
NG Neutral / Ground
*Note: Back-Up Heater will only activate when Primary Heater fails.
Elect Valve FanComp
1 2
3OPERATION PANELWATER TEMP.SENSOR 2
COIL TEMP.SENSORAMBIENT TEMP.SENSOR EXHAUST TEMP.SENSOR
PRESURE PROTECTOR
LN
YELLOW/GREEN
YELLOW/GREEN
YELLOW/GREEN
ELECTRIC HEATER-1TEMP.SENSOR
YELLOW/GREENELECTRIC.HEATER-2
901251502
4231
/
ELECTRIC.HEATER-1
YELLOW/GREENC
S R
COMPRESSOR ELECTRIC HEATER-1 PROTECTOR
4-WAY VALVEFAN MOTOR
L1 NGL2 L1 NGL2
Primary Heater Back-Up Heater
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