installation and homeowners guidefiles.kohler.com.cn/pdfs/1516246642238_k-77404t-0.pdfinstallation...

Installation and Homeowners Guide

Underscore Bathroom Heater S300

S300

K-77404T-0

KOHLER CHINA INVESTMENT CO., LTD NO.158, JIANG CHANG SAN ROAD,JING'AN DISTRICT, SHANGHAI, PRC POST CODE: 200436

( ) 158 200436

1322966-T01-B

-1-

BEFORE YOU BEGIN

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Please read these instructions carefully to familiarize

yourself with the required tools, materials, and installation

sequences. Follow the sections that pertain to your

particular installation. This will help you avoid costly

mistakes. In addition to proper installation, read all

operation and safety instructions.

All information in these instructions is based upon the

latest product information available at the time of

publication. Kohler China reserves the right to make

changes in product characteristics, packaging, or

availability at any time without notice.

These instructions contain important care, cleaning, and

warranty information -

.

This product complies with GB 4706.1-2005, GB4706.23-

2007 and GB 4706.27-2008.

please leave instructions for the

consumer

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GB 4706.1-2005 GB4706.23-2007 GB

4706.27-2008

WARNING: Risk of electrical shock.



A licensed

electrician should make all electrical connections.

Connect only to

a circuit protected by a typical two-pole circuit breaker.

Disconnect

power before servicing.

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Tape measureLevelScrew driverConnection wireWire cutterInsulation tapeBushingPercussion DrillPen KnifeWrench

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RECOMMENDED TOOLS AND MATERIALSRECOMMENDED TOOLS AND MATERIALS

Kohler reserves the right to change marked dimensions without prior notice.

Unit: mm:

Reference Value

ROUGHING-IN

300

300

266

285

Junction Box Cover

280256

200 160

12

28

Ventilation Outlet

Hot Air Outlet

©

©

Copyright Kohler China Investment Co., Ltd. 2017

20171322966-T01-B

-2-

SPECIFICATIONS

Model

Voltage/Frequency /220V~/50Hz

K-77404T-0 K-77404T-0

220V~/50Hz

Rated Input Power 2150W 2150W

Heater Power

Fan Power

Ventilation Power

2125W 2125W

25W 25W

25W 25W

Ventilation Volume

Ventilation Noise

Ingress Protection

2.2m /min3

2.2m /min3

43dB 43dB

IPX2 (Bathroom Heater) IPX2 ( )

IPX4 (Remote Control) IPX4 ( )

SIMPLIFIED DIAGRAM OF THE UNIT

Note: Plaster or other ceiling opening dimension: 275 X 275 (mm)

275 X 275 (mm)

+50

+50

+50

+50

Keel

Clamp

Air Exhaust Pipe

BTP4*8 TriangularSelf Tapping ScrewBTP4*8


Ventilation Outlet Assy.

Air Outlet Window

L-mounting BracketL

Keel Lock

1322966-T01-B

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WIRING DIAGRAM

CTR

LIN

FAN

NOUT

HOT

NIN

LIGHT

A4A3A2A1

12V

STEPPER MOTORBLUE

RED

PINKYELLOWORANGE

HEATER

THERMOSTATTHERMAL FUSE

OVER CURRENT FUSE

MOTOR

CAPACITOR

ALL-POLE SWITCH (OPTIONAL)

220V50Hz

THE RATE OF THE POWER SWITCHMUST NOT BE LOWER THAN 250V 16A

250V 16A

RED

RED

BLUE

BLUE

BLUE

BROWN

YELLOW

YELLOW

YELLOW

YELLOW/GREEN/

2

1

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There's no risk of damage to the insulation of power cord.

Copper cord must be inserted into the pillar terminal hole, and make

sure all the cords under the terminal are inserted into the pillar

terminal completely.

Suggest using a power cord which with specification 60227 IEC 53

Model's powercord Specified in GB/T 5023.5 and with cross section

of 3X1.0mm .

,

GB/T 5023.5 60227 IEC 53 ,

3X1.0mm

2

2

Terminal

Conductor

Insulation

8

(Unit: mm)( : )

WARNING

Make sure the power cord installed firmly,

otherwise it may catch fire.

ConductorConductor

Earth

Power Cord

8

8 8

13 15

10

Wall Controller

Signal Line

1322966-T01-B

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PREPARATIONS BEFORE INSTALLATION

A. Preparation before the installation A.

1. Open the hole of outlet windowMake sure that the outlet window s position (it should belower than the outlet of the bathroom heater to prevent thewater come back to the bathroom heater from the outletwindow), and open a round hole on the wall.

2. Outlet window installationFix the air exhaust pipe to the outlet window on the wallwith the clamp as the preparation of bathroom heaterinstallation. Seal the pipe and the outlet window withfoaming agent.

1.

(

)

2.

Ceiling

Air Exhaust Pipe

Wall

Inside Outside

Outlet Window

The situation of outlet window on thewall outside.

The situation of outlet window on thewall inside.

Outlet Window

Outlet Window

Hole on the Wall Hole on the Wall

80mm80mm

115mm115mm

B. Take out the bathroom from package. B.

Bathromm Heater

1322966-T01-B

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C. Packing List C.

128554780 Air Outlet Window80

128554880 Air Exhaust Pipe80

1285549Clamp

2 1285550Ventilation Outlet Assy.

Note: Initial Length:275mmStretch Length: 1300mm

275mm1300mm

BTP4 8 TriangularSelf Tapping ScrewBTP4 8

TriangularSelf-tapping ScrewBTP4*8

INSTALLATION

Caution before installation:

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The installed product must be 200mm or above away from

curtains or other combustible materials.

The distance between the ceiling where the product is

mounted and the roof shall be 200mm or above.

Ensure that the gap between the product edge and the

wall is 300mm or above.

The power cord to the product shall have enough length

for the installation.

The distance between the product and the air outlet

window shall be 1000mm or lower.

Cut the screw rod(M6) to suit the distance between the

ceiling and the roof.

Keels should afford at least 25kg.

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200mm

200mm

300mm

1000mm

(M6)

25kg

Air Exhaust Pipe

Wall

Lower than 1000mm1000

300mm above300 300mm above

300

Air Outlet Window

Bathroom Heater

1327472Keel Lock

4

1327471L-mounting BracketL 4

ST4 10 SelfTapping Screw

ST4 10

Base

Wall Controller

1325479Wall Controller Assy.

Frame

1322966-T01-B

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Installing the Main Body

Integrated ceiling should be 300*300, 300*450, 300*600:

1. Connecting the power cord

Pass the power cord through the ceiling.

300*300 300*450 300*600

1.

Power cord

Decorated Plate

2. Take down the decorated plates around the installation

position to ensure that there is sufficient operation space

for installation (see the figures below).

3. Match a keel lock with an L-mounting bracket.

4. Pre-install the 4 matched L-mounting brackets on the keel.

Make sure the installation clearance is appropriate. The

location of L-mounting brackets can be adjusted on the

keel before the columnar round screws are tightened.

2.

( )

3. L

4. 4 L

L

300mm*300mm integrated ceiling300mm*300mm



L-mounting BracketL Keel Lock

Keel

Columnar Round Screw

1322966-T01-B

5. Push the bathroom heater into the integrated ceiling. Use

BTP4*8 triangular self-tapping screws to connect the body

and L-mounting brackets. The installation height shall be

adjusted before the screws are tightened.

6. Install the demounted decorated plates. Push the bathroom

heater until the base and the adjacent plates become

coplanar. Finally, tighten the 8 BTP4*8 triangular self-

tapping screws and the columnar screws.

5. BTP4*8

L

6.

BTP4*8 (8 )

7. Fix the ventilation outlet assembly on the body with one

BTP4*8 triangular self-tapping screws. Then fix air exhaust

pipe on the ventilation outlet assembly with a clamp.

7. BTP4*8 (1 )

-7-

BTP4*8 Triangular Self Tapping ScrewBTP4*8 (8 )


Decorated Plate

Decorated Plate

Body

Base

BTP4*8 TriangularSelf Tapping ScrewBTP4*8 (1 )

Ventilation Outlet Assy.

Air Exhaust Pipe

Clamp

Columnar Round Screw

1322966-T01-B

-8-

8. Take down the wiring cover plate. Insert the power cord

and 2 signal lines into the wire terminals. Tighten the

terminal screws and fix the lines. Finally, mount the wiring

cover plate.

9. Put back and install the remaining plates. (Installation

finished)

8.

3 2

9. ( )

Power cord

L N

Wiring Terminal

WALL CONTROLLER INSTALLATION

Fix the wall controller frame and the base with two screws.

Then connect two signal lines with the wall controller and

tighten with signal line screws. Finally, fix the wall controller

on the frame.

2

Wall Controller

Signal Line

Wall ControllerSignal Line

Frame

Screw*2

Base

Self-tapping ScrewST4*10

Wire Box Cover

1322966-T01-B

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USER'S GUIDE

A. Button Function A.

B. Time SettingUnder the heater mode, there is a delay of 20 secs afterthe heater mode is stopped or switched to fan orventilation mode.Under the fan mode, there is a delay of 3 secs after thefan mode is stopped or switched to heater or ventilationmode.Under the ventilation mode, there is a delay of 3 secsafter the ventilation mode is stopped or switched to heateror fan mode.The defaulted duration time of heater, fan and ventilationmode is 2 hrs.

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B." " " " "

" 20

" " " " "

" 3

" " " " "

" 3

" " " " " 2

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TROUBLESHOOTING

Problem Diagnosis Solution

Bathroom heater does notwork.

Wall controller break down.

A. Power failure.

D. The signal line route is interrupted.

B. Disconnected power cord.

A. The pilot lamp does not turn on.

C. Circuit breaker is off .

B. Fail to control the bathroom heater.

A. Wait until the power is restored.

D. Check the signal line route and ensure that it

is connected properly.

B. Connect the power cord into the junction box

of bathroom heater properly.

A. Ensure that the signal line is connected

properly.

C. Turn on the power at the breaker.

B. Connect the signal line and the bathroom

heater properly.

A.

D.

B.

A.

C.

B.

A.

D.

B.

A.

C.

B.

Heater: Turn on/off or switch to the heater mode./ " " " "

Fan: Turn on/off or switch to the fan mode./ " " " "

Ventilation Turn on/off or switch to the ventilation mode./ " " " "

Air Flow: Switch the air flow to fixed flow or swing flow (defaulted).

1322966-T01-B

CARE & CLEAN

1.

2.

3.

4.

5.

6.

7.

8.

9.

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1. Turn off power supply before maintenance or cleaning. If

Casing or Air Louver are covered with dust, do not splash

water onto it. Use only damp sponge or cloth to wipe dirt

off.

2. Do not use eradicator, abrasive powder or oil, acid or alkali

liquid detergent to clean casing or air louver.

3. Never try to put a small screw-driver or any other object

into the holes of air Louver from outside. This might cause

damage to the interior parts, and electric shock may occur.

4. Shut off the all-pole switch.

5. Wipe the front panel and the panel base with a soft cloth.

6. Remove the filter from the louver.

7. Use a vacuum cleaner to remove dust and dirt from the

filter.

8. Reinstall the filter assembly.

9. Turn on the all-pole switch.

1322966-T01-B

IMPORTANTCONSUMER INFORMATION

1. When AC power unit is connected to 220V AC powersupply, corresponding protective measures should betaken.

2. Please confirm no water penetration at the connection areaof AC wire, and the connection area is not easy to beaffected by damp.

3. The head AC power supply must be protected withappropriate fuse.

4. Please confirm the AC power supply should be shut offbefore maintaining the products with AC power related.

5. All electrical connection must be compliance with relatedregulation and codes.

6. All installation staff should be well familiar with installationinstruction.

Notice: Troubleshooting needs to be done by

professional of KOHLER CHINA. Users are not suggested

to do this without help. Please remember that the

checking and repairs done by users themselves could

easily cause damage to the machine or cause physical

harm to the person.

1. 220V

2.

3.

4.

5.

6.

-11-1322966-T01-B

installation and homeowners guidefiles.kohler.com.cn/pdfs/1516246642238_k-77404t-0.pdfinstallation...

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