Kohler S300G User manual

Installation and Homeowners Guide
Underscore Bathroom Heater S300G
S300G
K-77404T-G-0
KOHLER CHINA INVESTMENT CO., LTD NO.158, JIANG CHANG SAN ROAD,
JING'AN DISTRICT, SHANGHAI, PRC POST CODE: 200436
( ) 158 200436
1324694-T01-C

-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.
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
Junction Box Cover
Ventilation Outlet
Hot Air Outlet
©
©
Copyright Kohler China Investment Co., Ltd. 2017
2017
256
300
300
266
28
16
156
1324694-T01-C

-2-
SPECIFICATIONS
Model
Voltage/Frequency /
220V~/50Hz 220V~/50Hz
Rated Input Power 2150W 2150W
Heater Power
Fan Power
Ventilation Power
2130W 2130W
30W 30W
30W 30W
Ventilation Volume
Ventilation Noise
Ingress Protection
2.2m /min
32.2m /min 3
43dB 43dB
IPX2 (Bathroom Heater) IPX2 ( )
IPX4 (Wall Controller) IPX4 ( )
K-77404T-G-0 K-77404T-G-0
SIMPLIFIED DIAGRAM OF THE UNIT
Note: Plaster or other ceiling opening dimension: 275 X 275 (mm)
275 X 275 (mm)
+5
0
+5
0
+5
0
+5
0
BTP4*8 Triangular Self Tapping Screw
BTP4*8
Expansion Pipe
M6 Screw Rod
M6
Body
ST4.2*10 Self Tapping Screw
ST4.2*10
M6 Butterfly Nut
M6
Hanger
M6 Washer
M6
M6 Spring Washer
M6
M6 Nut
M6
Decorative Screw Case
Ventilation Outlet Assy.
Clamp
Air Outlet Window
Clamp
Air Exhaust Pipe
Plaster Board
1324694-T01-C

-3-
WIRING DIAGRAM
CTR
LIN
FAN
NOUT
HOT
NIN
LIGHT
A4
A3
A2
A1
12V
STEPPER MOTOR
BLUE
RED
PINK
YELLOW
ORANGE
HEATER
THERMOSTAT
THERMAL FUSE
OVER CURRENT FUSE
MOTOR
CAPACITOR
ALL-POLE SWITCH (OPTIONAL)
220V
50Hz
THE RATE OF THE POWER SWITCH
MUST NOT BE LOWER THAN 250V 16A
250V 16A
RED
RED
BLUE
BLUE
BLUE
BROWN
YELLOW
YELLOW
YELLOW
YELLOW/GREEN
/
2
1
+
+
+
+
+
+
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
Conductor
Earth
Power Cord
8
8
8
13
15
10
Wall Controller
Signal Line
1324694-T01-C

-4-
PREPARATIONS BEFORE INSTALLATION
A. Preliminary Installation A.
1. Drill the hole of the Outlet Window
Fix the positon of outlet window hole (above the suspended
ceiling and below the bathroom heater outlet to prevent the
water from coming back to the machine via the pipe), and
then drill a round hole on the wall.
2. Window Outlet Installation
Fix one end of the air exhaust pipe to the window outlet on
the wall with a clamp and seal the pipe and the outlet
window with foaming agent. Then connect the other end
with the bathroom heater by a ventilation outlet assembly,
and then fix it with a clamp.
3. Make a Mounting Hole
Fix the position to install the bathroom heater and then drill
a (275 *275 ) hole with an install template. And the draw
the power adaptor wire and the ventilation outlet assembly
to the plasterboard hole.
+5 +5
00
1.
(
)
2.
3.
(
275 *275 )
+5 +5
00
Power Cord
Mounting Hole
Ventilation Outlet
Assembly
Installation Hole Mark
Install Template
Plasterboard Ceiling
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
Signal Line
1324694-T01-C

-5-
C. Packing List C.
1285547
80 Air Outlet Window
80
1285548
80 Air Exhaust Pipe
80
1285549
Clamp
2
1322381
Heater Accessories Package
1322379
Fixed Column Assy.
1322380
Lock Assy.
Note: Initial Length:275mm
Stretch Length: 1300mm
275mm
1300mm
Expansion Pipe
M6 Screw Rod
M6
M6 Butterfly Nut
M6
M6 Washer
M6
M6 Spring Washer
M6
M6 Nut
M6
Hanger
Triangular Self-tapping Screw
BTP4*10
Ventilation Outlet
ST4.2 10 Self Tapping Screw
ST4.2 10
Wind Shield
1322382
Ventilation Outlet Assy.
305mm
1322383
Install Template
ST4 10 Self
Tapping Screw
ST4 10
Base
B. Take out the bathroom from package. B.
Bathromm Heater
Wall Controller
1325479
Wall Controller Assy.
Frame
1324694-T01-C

-6-
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.
Plaster ceiling is required to afford at least 25kg in load for
batten installing method.
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200mm
200mm
300mm
1000mm
(M6)
25
Air Exhaust Pipe
Wall
Lower than 1000mm
1000
300mm above
300
300mm above
300
Air Outlet Window
Bathroom Heater
1. Installation of Main Body for Plaster Ceiling Method
One(Suggested)
Step One:
Take out the install template. Bend the template till 90 and
push it from the two sides of ventilation outlet assembly to
the cement board at the point of which the M6 screw rod is
marked. Finally, based on the marked point of M6 screw
rod, make the hole at the cerement board.
o
1. ( )
90
M6 M6
Mounting Hole
Mounting Hole
1
2
Ventilation Outlet Assembly
Ventilation Outlet Assembly
Plasterboard Ceiling
Plasterboard Ceiling
Marked Hole
Marked Hole
Install Template
Install Template
Bending line Install Template
Cement Board
120
270
1324694-T01-C

-7-
Step Two:
According to the position of the labelled boom, fix the M6
screw rod on the cerement board, and attach the hanger to
the M6 screw rod. (The hanger is required to flatten the
plasterboard, shown as the below figures)
M6
M6 (
)
Step Three:
Remove two M4 screws and the panel from the side
surfaces of the machine (by pushing the panel shaft from
one end where there is a hatch hinge, and push the other
end next). Demount the decorative screw case from the
base.
M4 (
)
M6 Butterfly Nut
M6
6 Washer
6
6 Spring Washer
6
M6 Nut
M6
Plasterboard Ceiling
Plasterboard Ceiling
Attach Hanger To Plasterboard
Panel Shaft Panel Shaft
Hatch Hinge
Hinge
Panel
Decorative Screw Case
M4*10 Screw(Two)
M4*10
()
Step Four:
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.
32
Power Cord
LN
Terminal
Wire Box Cover Signal Line
1324694-T01-C

-8-
Step Five:
Put the ventilation outlet assembly onto the plasterboard
celling, and push the machine into the install hole. Hang
the ventilation outlet hook over the rut inside the machine
body. Put the hanger inside the flanged sinking groove of
the machine.
Power Cord
Mounting Hole
Ventilation Outlet Assembly
Plasterboard Ceiling
Plasterboard Ceiling
Machine
Push Into The Install Hole
Flanged Sinking Groove
Hanger
Rut
Ventilation Outlet Hook
Step Six:
Use 4 BTP4*10 triangular self-tapping screws to lock the
machine and mounting hanger. Use one ST4.2*10 self-
tapping screw to fix the machine and ventilation outlet
assembly. Next, cover the decorative screw case.
Step Seven:
Install the panel and tighten the two M4*10 screws, which
were disassembled in Step Three, to fix the panel and
machine. (Installation Finished)
BTP4*10 (4 )
ST4.2*10 (1 )
M4*10 ( )
()
Decorative Screw Case
Decorative
Screw Case
BTP4*10 Triangular
Self-tapping Screw(Four)
BTP4*10
(4 )
ST4.2*10
Self-tapping Screw
(One)
ST4.2*10
(1 )
Plasterboard Ceiling
M4*10 Screw(Two)
M4*10 ( )
1324694-T01-C

-9-
2. Installation of Main Body for Plaster Ceiling Method Two
Note: Plaster ceiling should afford 25kg in load at least.
Suggestion: The gap between the keels should be above
400mm to accommodate the battens.
Step one:
Place a batten (suggested size - 30mm*30mm or
30mm*40mm, and 450mm in length) on the two sides of
the ventilation outlet assembly and on the plasterboard cell
with a drilled installation hole. (Shown as the figures)
2.
25kg
400mm
( 30mm*30mm 30mm*40mm
450mm )
()
Plasterboard Ceiling
Ventilation Outlet Assembly
Batten
Batten
Plasterboard Ceiling
Batten
Step Two:
Fix two hangers on the batten with M4 cross countersunk
head self-tapping screws. (Shown as the figures below.
The hanger should cling to the plasterboard cell.
Step Three:
Remove two M4 screws and the panel from the side
surfaces of the body (by pushing the panel shaft from one
end where there is a hatch hinge, and push the other end
next). Demount the decorative screw case from the base.
M4
()
M4 (
)
M4 Cross Countersunk Head Self-tapping Screws
M4
Panel Shaft Panel Shaft
Hatch Hinge
Hinge
M4*10 Screw
(Two)
M4*10
()
Panel Decorative Screw Case
Attach Hanger To Plasterboard
1324694-T01-C

-10-
Step Four:
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.
32
Power Cord
Terminal
Wire Box Cover
LN
Signal Line
Step Five:
Put the ventilation outlet assembly onto the plasterboard
celling, and push the machine into the install hole. Hang
the ventilation outlet hook over the rut inside the bathroom
heater body. Put the hanger inside the flanged sinking
groove of the body.
Power Cord
Mounting Hole
Ventilation Outlet Assembly
Plasterboard Ceiling
Plasterboard Ceiling
Push Into The Install Hole
Flanged Sinking Groove
Hanger
Machine
Rut
Ventilation Outlet Hook
Step Six:
Use 4 BTP4*10 triangular self-tapping screws to lock the
body and the hanger. Use one ST4.2*10 self-tapping screw
to fix the machine and ventilation outlet assembly. Next,
cover the decorative screw case.
BTP4*10 (4 )
ST4.2*10 (1 )
Decorative Screw Case
Decorative
Screw Case
BTP4*10 Triangular
Self-tapping Screw(Four)
BTP4*10
(4 )
ST4.2*10
Self-tapping
Screw(One)
ST4.2*10
(1 )
1324694-T01-C

-11-
3. Installation of Main Body without Suspended Ceiling
Step One:
Take out the install template. Bend the template till 90 and
push it to the cement board at the point of which the M6
screw rod is marked. After that, based on the marked point
of M6 screw rod, make the hole at the cerement board.
o
3.
90
M6
M6
Step Two:
According to the position of the labelled boom, fix the M6
screw rod on the cerement board, and attach the hanger to
the M6 screw rod. (The hanger is required to flatten the
plasterboard, shown as the figures)
M6
M6 (
)
Install Template
Cement Board
Cement Board
M6 Butterfly Nut
M6
6 Washer
6
6 Spring Washer
6M6 Nut
M6
Screw Rod
Step Seven:
Install the panel and tighten the two M4*10 screws, which
were disassembled in Step Three, to fix the panel and the
body. (Installation Finished)
M4*10 ( )
()
Plasterboard Ceiling
M4*10 ( )
M4*10 Screw(Two)
1324694-T01-C

-12-
Step Three:
Remove two M4 screws and panel from the side surfaces
of the machine (by pushing the panel shaft from one end
where there is a hatch hinge, and push the other end next).
Step Four:
Use 4 BTP4*10 triangular self-tapping screws to lock the
machine and mounting hanger.
Step Five:
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.
M4 LED
(
) BTP4*10
(4 )
BTP4*10 (4 )
32
Panel Shaft Panel Shaft
Hatch Hinge
Hinge
M4*10 Screw
(Two)
M4*10
()
Panel Decorative Screw Case
BTP4*10 Triangular
Self-tapping Screw(Four)
BTP4*10
(4 )
Hanger
Power Cord
LN
Terminal
Wire Box Cover Signal Line
1324694-T01-C

-13-
Step Six:
Tighten the M6 screw to install the machine body. Use one
ST4.2*10 tapping screw to fix the machine and ventilation
outlet assembly. Next, cover the decorative screw case.
Step Seven:
Install the panel and tighten the two M4*10 screws, which
were disassembled in Step Three, to fix the panel and
machine. (Installation Finished)
M6
ST4.2*10 (1 )
M4*10 ( )
()
ST4.2*10
Self-tapping Screw(One)
ST4.2*10 (1 )
M4*10 Screw(Two)
M4*10 ( )
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
Screw
*2
Base
Self-tapping Screw
ST4*10
Wall Controller
Wall Controller Signal Line
Frame
1324694-T01-C

-14-
USER'S GUIDE
A. Button Function A.
B. Time Setting
Under the heater mode, there is a delay of 20 secs after
the heater mode is stopped or switched to fan or
ventilation mode.
Under the fan mode, there is a delay of 3 secs after the
fan mode is stopped or switched to heater or ventilation
mode.
Under the ventilation mode, there is a delay of 3 secs
after the ventilation mode is stopped or switched to heater
or fan mode.
The defaulted duration time of heater, fan and ventilation
mode is 2 hrs.
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B.
"" """
"20
"" """
"3
"" """
"3
"" "" " 2
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TROUBLESHOOTING
Problem Diagnosis Solution
Bathroom heater does not
work.
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).
1324694-T01-C

-15-
CARE & CLEAN
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.
1.
2.
3.
4.
5.
6.
7.
8.
9.
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.
1324694-T01-C