Kohler K-77316T-C-MZ, S450, K-77283T-MZ, K-77315T-X-MZ, K-77315T-MZ owner's Manual

Installation and Homeowners Guide

Underscore Bathroom Heater S300

S300

K-77316T-C-MZ

(Air-care)

KOHLER CHINA INVESTMENT CO., LTD NO.158, JIANG CHANG SAN ROAD,

JING'AN DISTRICT, SHANGHAI, PRC POST CODE: 200436

( ) 158 200436

1325978-T01-A

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BEFORE YOU BEGIN

©©Copyright Kohler China Investment Co., Ltd. 2016

2016

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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, GB4706.23­2007 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.

WARNING: Risk of electrical shock.

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 measure
Level
Screw driver
Connection wire
Wire cutter
Insulation tape
Bushing
Percussion Drill
Pen Knife
Wrench

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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

280

256

200

160

12

28

Ventilation Outlet

Hot Air Outlet

1325978-T01-A

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SPECIFICATIONS

Model

Voltage/Frequency

/

220V~/50Hz 220V~/50Hz

Rated Input Power

2150W 2150W

Heater Power

Fan Power

Dry Clothing Power

Ventilation Power

2125W 2125W

25W 25W

2125W(Hot)/25W(Cool) 2125W( )/25W( )

25W

25W

25W

25W

Air-care Power

Lighting Power

Ventilation Volume

Ventilation Noise

Ingress Protection

8W 8W

2.2m /min

3

2.2m /min

3

43dB 43dB

IPX2 (Bathroom Heater) IPX2 ( )

IPX4 (Remote Control) IPX4 ( )

SIMPLIFIED DIAGRAM OF THE UNIT

Note: Plaster or other ceiling opening dimension: 280 X 285 (mm)

280 X 285 (mm)

+5

0

+5

0

+5

0

+5

0

M6 Screw Rod

M6

6 Washer

6

6 Spring Washer

6

Hanger

M6 Screw Cap

M6

Keel

Body

Clamp

Clamp

Air Exhaust Pipe

BTP4*8 Triangular Self Tapping Screw
BTP4*8

Expansion Pipe

M6 Butterfly Nut

M6

BTP4*8 Self Tapping Screw
BTP4*8

Ventilation Outlet Assy.

Air Outlet Window

K-77316T-C-MZ

K-77316T-C-MZ

1325978-T01-A

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WIRING DIAGRAM

LED POWER

LED

HEATER

THERMOSTAT

THERMAL FUSE

OVER CURRENT FUSE

MOTOR

CAPACITOR

ALL-POLE SWITCH (OPTIONAL)

220V
50Hz

CN4

CN7

CN8

CN5

CN2

CN9

CN13

CN1

CN11

CN12

CN10

TEMPERATURE
AND HUMIDITY

SENSOR MODULE

AIR-CARE MODULE

STEPPER MOTOR

INDICATOR LIGHT

MODULE

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

250V 16A

YELLOW/GREEN

/

RED

BLUE

BLUE

BLUE

BLUE

RED

RED

RED

BLACK

BLACK

WHITE
WHITE
WHITE
WHITE

WHITE

WHITE

BROWN

GRAY

PINK

PINK

YELLOW

YELLOW

YELLOW

ORANGE

ORANGE

MAIN CONTROL CIRCUIT BOARD

+

+

+

+

+

+

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.

Conductor

Earth

Power Cord

8

8

13

10

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PREPARATIONS BEFORE INSTALLATION

A. Preparation before the installation A.

1. Open the hole of outlet window
Make sure that the outlet window s position (it should be
lower than the outlet of the bathroom heater to prevent the
water come back to the bathroom heater from the outlet
window), and open a round hole on the wall.

2. Outlet window installation
Fix the air exhaust pipe to the outlet window on the wall
with the clamp as the preparation of bathroom heater
installation. Seal the pipe and the outlet window with
foaming agent.

1.
(

)

2.

Ceiling

Air Exhaust Pipe

Wall

Inside

Outside

Outlet Window

The situation of outlet window on the

wall outside.

The situation of outlet window on the

wall inside.

Outlet Window

Outlet Window

Hole on the Wall

Hole on the Wall

80mm

80mm

115mm

115mm

B. Take out the bathroom from package. B.

Bathromm Heater

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C. Packing List C.

1285547

80 Air Outlet Window
80

1285548

80 Air Exhaust Pipe
80

1285549
Clamp

2

1285550
Ventilation Outlet Assy.

1285552
Fixed Column Assy.

M6 Expansion Head
M6

10 Expansion Pipe
10

M6 Screw Rod
M6

1285553
Lock Assy. /

M6 Butterfly Nut
M6

6 Washer
6

6Spring Washer
6

M6 Nut
M6

Note: Initial Length:275mm

Stretch Length: 1300mm

275mm
1300mm

BTP4 8 Triangular
Self Tapping Screw
BTP4 8

270mm

1285556
Remote Control Base Assy.

Cover

*2

M4*25Screw

*2

Base

6 Plastic

Expansion Pipe

6*2

1285551
Heater Accessories Package

Hanger

Triangular
Self-tapping Screw
BTP4*8

1288669
Install Template

1285555
Remote Control

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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.

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200mm

200mm

300mm

1000mm

(M6)

Air Exhaust Pipe

Wall

Lower than 1000mm

1000

300mm above
300

300mm above
300

Air Outlet Window

Bathroom Heater

1. Connecting the power cord

(1) Pass the power cord through the ceiling.

1.

(1)

Power cord

Decorated Plate

1325978-T01-A

2. Fix the power cord to the bathroom heater
(1) Remove the screw on the wiring cover plate.
(2) Open the wiring cover plate.
(3) Lift the terminal protection cover.
(4) Loosen the screw fixing the power cord clip.
(5) Loosen the screw on the wiring terminal, insert the

power cord (not supplied) connected to the indoor fixed
line into the wiring terminal, tighten the wring terminal
screw.

(6) Fix the power cord with power cord clips. (The power

cord clip must pin the insulation sheath of power cord.)

(7) Use the screw removed in step (3) to fix the wiring

cover plate again.

2.
(1)
(2)
(3)
(4)
(5) (

)

(6) (

)

(7) (3)

3. Installing the Main Body Method 1 integrated ceiling.
integrated ceiling should be 300*300, 300*450, 300*600

(1) Disassembly the decorated plate around the position of

the product installation.

3.
300*300 300*450 300*600

(1)

()

300mm*300mm integrated ceiling

300mm*300mm

Disassembly 6 pieces

6

Disassembly 6 pieces

6

300mm*450mm integrated ceiling

300mm*450mm

300mm*600mm integrated ceiling

300mm*600mm

Disassembly 3 pieces

3

-7-

(2) Use the install template as the diagram to insert it into

the ceiling to mark the position of the drill.

(2) 90

300mm*300mm integrated ceiling

300mm*300mm

Bending line

Install Template

Install Template

Install Template

Cement Board

Power cord

LN

Wiring Terminal

274

198.5

1325978-T01-A

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(3) Fix the suspender on the right position of the cement

board, use the install template to adjust the M6 nut on
the suspender.

(4) Fix the suspension bracket on the suspender by 8

BTP4*8 screw.

(3)

M6

(4) 8 BTP4*8

M6 Butterfly Nut
M6

6 Washer
6

6 Spring Washer
6

M6 Nut
M6

M6 Nut
M6

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

Suspender

Cement Board

Ceiling Surface

Install template datum line

(5) Fix the product on the M6 suspender by the suspension

bracket.

(5) M6

M6 Butterfly Nut
M6

6 Washer
6

6 Spring Washer
6

M6 Nut
M6

M6 Screw Rod
M6

1325978-T01-A

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(6) Install the air exhaust pipe

1) Fix the air exhaust pipe on the ventilation outlet assy.
by the clamp. The pipeline connected to outside of
the room must be slanted to prevent rain or
condensed water from flowing backwards.

(6)

1)

Outdoors

Indoors

Slant Taper

1

100150

~

()

BTP4*8 Triangular
Self Tapping Screw
BTP4*8 (1 )

80 Ventilation Outlet Assy.
80

Ventilation Outlet Assy.

Clamp

Air Exhaust Pipe

()

80mm

(7) Install the decorated plate and adjust the nut on the

suspender to keep them on the same horizontal surface.
Lock the nut after the adjustment.

(8) Install the remaining decorated plate (finish the product

installation)

(7) M6 M6

(8) ( )

Decorated Plate

Base

300mm*300mm integrated ceiling

300mm*300mm

1325978-T01-A

4. Installing the Main Body Method 2 Ceiling mounting has
not been installed.
(1) Positioning and installation of the suspenders

1) Paste the install template attached along with the
product on the position where the main body is
intended to install.

4.

(1)

1)

Install Template

Cement Board

2) Fix the suspender to the cement board according to
the fixing position of the suspender as shown by the
install template.

2)

Cement Board

Suspender

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(2) Fix the ventilation outlet assy. to the main body using

the BTP4*8 self-tapping screw.

(3) Fix the suspension bracket to the main body using the 8

BTP4*8 self-tapping screws.

(2) 1 BTP4*8

(3) 8 BTP4*8

BTP4*8 Self Tapping Screw
BTP4*8 (1 )

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

(4) Fix the product on the M6 suspender by the suspension

bracket. Lock the nut after the installation.

(4)

M6 Butterfly Nut
M6

6 Washer
6

6 Spring Washer
6

M6 Nut
M6

1325978-T01-A

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NOTE: When the ceiling is unable to dismantle, please
set a square inspection hole of at least 450mm.

450mm

(5) Install the air exhaust pipe

1) Fix the air exhaust pipe on the ventilation outlet assy.
by the clamp. The pipeline connected to outside of
the room must be slanted to prevent rain or
condensed water from flowing backwards.

(5)

1)

Outdoors

Indoors

Slant Taper

1

100150

~

()

Ventilation Outlet Assy.

Clamp

Air Exhaust Pipe

()

80mm

NOTE:

NOTE:

If the wall for installation is made of special material
(such as wood board, density board and etc.), suitable fixing
methods shall be adopted.

The place to install the remote controller shall not be
easily splashed by water.

Choose a mounting location for the remote holder.

Drilling two holes with depth larger than 45mm on the wall by
drill with a diameter of 6mm in accordance with the position of
screw holes on the remote control holder. Installing the
expansion tube into the holes.

Placing the installation holder on the fixing hole.

Fixing the holder with screws and install it.

Installing the screw covers on the screws.

Placing the remote controller on the holder.

6mm

45mm

INSTALLATION OF REMOTE CONTROLLER HOLDERINSTALLATION OF REMOTE CONTROLLER HOLDER

Remote Control

Cover

Screw

Base

Expansion Tube

INSTALLATION OF COIN BATTERYINSTALLATION OF COIN BATTERY

Please follow the installation diagram.

Coin Battery (CR2430)

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USER'S GUIDE

A. Pairing

Connect to the power source, press the "HEATER and

together within 3 minutes to make the pairing.
"Beep, Beep, Beep" will be heard and the LED lamp will
be turned on if the pairing successfully.

"

"FAN"

!

A.

3

LED

!

B. Button Function B.

C. Display information C.

DOWN : Timer down

UP : Timer up

HEATER : Turn on the heater mode

FAN : Turn on the fan mode

DRY : Turn on the hot /cool dry clothes mode

VENTILATION : Turn on the ventilation/long time vent mode

24

AIR FLOW : Set the air flow swing or fixed

AIR-CARE : Turn on the air-care mode

LIGHT : Lighting on and off/chang the light color

/

STOP : Stop certain function

()

Hour

Minute

Celsius

Humidity

HEATER

FAN

HOT DRY

COOL DRY

24H VENTILATION 24

VENTILATION

AIR-CARE

AIR FLOW FIXED

SWING MODE

HEATER

FAN

1325978-T01-A

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D. Activated mode

During the standby mode, press any button to the

, display the room temperature and
humidity. Display will be turned off if no any further action
within 10 seconds.
During the working mode, display the room temperature
and humidity. Display will be turned off after the
countdown finish.
Press the function button, the "beep will be heard.

activated mode

"

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D.

10

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E. Time setting

Setting time could be changed during the "HEATER",
"FAN , "DRY", "VENTILATION" and "AIR-CARE" mode.
Setting time will be changed back to the default after each
use.
"HEATER": the default time is 6 hours, minimum time is
10 minutes, and maximum time is 6 hours.
"FAN": the default time is 6 hours, minimum time is 10
minutes, and maximum time is 6 hours.
"DRY : the default time is 6 hours, minimum time is 10
minutes, and maximum time is 6 hours.
"VENTILATION": the default time is 6 hours, minimum
time is 10 minutes, and maximum time is 6 hours.
"AIR-CARE": the default time is 2 hours, minimum time is
10 minutes, and maximum time is 2 hours.
"24H VENTILATION": the default time is 6 hours, the
setting time cannot be changed.

"

"

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E.

+-

610

6

610
6
/610

6

610
6

210

2

24 24

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TROUBLESHOOTING

Problem Diagnosis

Solution

Bathroom Heater does not
work.

The remote controller
does not display.

The remote controller
does not work.

Red LED is on.

Red LED is flash.

A. A power failure occurred.

A. The battery has been used up.

A. No pairing with the bathroom heater.

A. Temperature sensor error.

A. Dust filter need be clean.

B. The power cord is disconnected.

B. The polarity of battery was installed inversely.

B. The remote controller is used in an

inappropriate position or angle.

B. Humidity sensor error.

C. Circuit breaker is in the "Off" position.

C. No wake-up.

C. Low battery.

C. Heating system error.

A. Wait until the power is restored.

A. Please replace the battery.

A. Make the pairing.

Call the Customer Service Centre using the
information provided on the Compliance
Certification.

B. Connect the power cord into the junction box

of bathroom heater.

B. Please install the battery correctly.

B. Change the using position or angle to make

the controller towards the bathroom heater.

C. Turn on the power at the breaker.

C. Press any key to wake-up.

C. Change the battery.

A. Clean the filter or press the "+" for 2 seconds

in the Activated mode(Page 13).

1325978-T01-A

A.

A.

A.

A.

A.

B.

B.

B.

B.

C.

C.

C.

C.

A.

A.

A.

B.

B.

B.

C.

C.

C.

A. P13

+2

CARE & CLEAN

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.

1.

2.

3.

4.

5.

6.

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1325978-T01-A

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.

10. Press the "+" for 2 seconds in the Activated mode(Page

13) to reset the filter cleaning indication.

7.

8.

9.

10. P13
+2

IMPORTANT CONSUMER INFORMATION

1. When AC power unit is connected to 220V AC power
supply, corresponding protective measures should be
taken.

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

3. The head AC power supply must be protected with
appropriate fuse.

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

5. All electrical connection must be compliance with related
regulation and codes.

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

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.

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1325978-T01-A