Navien COMFORT MATE EQH-20WUS User manual

EQH-20WUS, EQH-40WUS
Please read the user manual carefully in order to use the product as intended.
Store this manual in a place where it can easily be found.
There may be a change in appearance or dimensions of the product without
prior notice for improvement of product quality.
Purchased product may not be exactly as shown in gures in the manual.
Installation Instructions
COMFORT MATE

Contents
Contents 3
Precautions for Safety 4
Product Summary 10
Product Features 11
Items Included with the Product 12
Part Description 13
How to Install the Product 15
How to Use the Product 16
Setting Dual/Individual Heating Mode 17
Setting Reserve Feature 19
Setting Child Lock 20
Setting Sleep Mode 21
Adjusting the Sound 23
Adjusting Sterilization Mode 23
How to Maintain the Product 25
Error Codes and Troubleshooting 27
Detailed Specications and Dimensions 28
Warranty

Precautions for Safety
4
Please read the safety precautions and follow the instructions carefully as they are
for prevention of potential accidents and hazardous conditions.
ACTIONS
PROHIBITED
Prohibited actions are shown with
emphasis.
DISASSEMBLY
PROHIBITED
This sign indicates DO NOT DISASSEMBLE.
ENSURE PROPER
GROUNDING
Grounding for prevention of electric shock.
WARNING
Failure to follow all safety guidelines can result in
severe injury or death.
CAUTION
Failure to follow all safety guidelines can result in
minor or moderate injury.

5
Please follow the instructions when using the product.
Please use outlets with a ground
terminal and proper voltage.
Unstable voltage conditions may lead to re,
and there is a danger of malfunction or electric
shock when not using a ground terminal.
120V
If the power cord or the power plug is
damaged, receive replacement through
manufacturers, its service agencies,
or a qualied technician.
When using a multi-outlet, do not use
multiple devices at the same time.
There is a risk of re or electric shock.
Do not excessively bend, stretch,
or tie the power line.
There is a risk of electric shock or re.
Please do not insert or touch the
power plug with wet hands.
There is a danger of electric shock or injury.
Do not kick or exert a force on the
boiler.
There is a risk of an accident and/or
malfunction of the product.

6
Please follow the instructions when using the product.
Do not use the product in a moist area
or outside where direct sunlight, snow,
and
rain can directly aect the product.
Place the boiler on at ground.
There is a danger of electric shock or re due to
heating and electric short.
The boiler may not turn on when the horizontal
leveling sensor sensor, located in lower part of
the boiler, is activated due to placement on an
uneven surface.
Do not operate the product near other
electric heating appliances, such as gas
stoves or heaters.
It may lead to re or deformation of the product.
Do not open the water compartment
when the boiler is operating, and be
awarethat water vapor can be emitted
from the compartment opening.
There is a danger of electric shock or re.
Properly secure all water connections
between boiler and mattress and be
careful not to snap or damage the
hoses.
There is a risk of product malfunction.
Keep children away from operating
and set the child-lock mode when not
using the product.
There is a danger of electric shock or re, and
nd it may lead to product malfunction.
C
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d
L
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M
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e
3 sec!

7
Please follow the instructions when using the product.
Do not crumble or fold the mattress
when the boiler is operating.
It may lead to product malfunction.
Do NOT dismantle, repair, or alter the
product on your own.
When there is a need for repair, contact qualied
service agency as there may be a danger of
malfunction, electric shock, or re.
Please use clean water (ltered water,
mineral water) and do not add any other
liquids. Do NOT use ground or well water.
It may cause production malfunction.
ltered/
mineral water
air fresheners
air fresheners
detergent
detergent
chemical agents
oil
Do not place heavy or sharp things
(tack, nail, knife, needle) on top of the
mattress in order to prevent accidental
damage.
It may lead to product deformation or re.
Do not clean the boiler with unapproved
detergents or chemicals, such as benzene,
thinner, and alcohol.
It may lead to discoloration, and/or deformation.
benzene
Alcohol
Thinner
When the room temperature is too low
(lower than 40°F/5°C), keep the power
cord plugged in to automatically prevent
freezing.
40°F/5°C

8
Please follow the instructions when using the product.
When water is leaking from the mattress,
unplug the power plug, and contact a
service agency.
Do not operate the product without
water.
It may lead to product malfunction.
Do not operate the product with wet
hands, or insert foreign substances
inside the product.
There is a danger of malfunction, electric shock,
or re.
Do not reassemble or alter the mattress .
It may lead to product malfunction.
Keep children, the disabled, and people
who can be prone to accidental injury
away from operating the product.
There is a danger of burn.
There is a risk of mild burns.
When using the product, lay the provided
cover over the the mattress, or use a pad
or a blanket if there is no cover.

9
Please follow the instructions when using the product.
When an error code or operational issue
occurs while using the product,
immediately disconnect the power cord
from the outlet and contact a service
center.
Mattress should be hand washed only
and a mild detergent should be used.
Remove the cover and lightly clean,
then air dry.
Do not use the product with latex
as it may lead to deformation of the
product.
There is a danger of re or electric shock due to
heating and electric short.
Neutral detergent
If the product is water-damaged, turn o
the power and contact a service center.
If the product is operated after experiencing water
damage, there is a danger of electric shock or re.
If the product is idle for a long time,
invert and drain the heating tank to
remove water, use the water removal kit,
which comes included when purchasing
the product, to remove water in from the
hoses inside the mattress, and store the
product.

Product Summary
10
Thank you for choosing Comfort Mate, bed warming mattress product manufactured by Navien.
This user manual provides detailed information on appropriate use of the product and precautions.
If you read the instructions carefully before use, you can enjoy a safe and comfortable experience with the
Comfort Mate for a long time.
Comfort Mate is produced by nationally representing boiler company KD Navien, which has focused on
technolo gies to satisfy our customers’lives.
Comfort Mate uses Motor Circulation Method to circulate heated water from boiler to mattress, providing
heat for pleasant and healthy sleeping conditions.
1. Application of nationally representing boiler company KD Navien’s temperature controlling
technology, called '4TC System'
- MTC : Safe use of the product with medium-to-hot water controlling technology.
- RTC : Accurate temperature control desired by the user by controlling temperature of circulating water
to correspond set temperature to mattress temperature.
- ETC : Optimized heating performance with uniform temperature over the entire mattress.
- DTC : Possible to adjust temperature for right and left side using electric-copper isolating heating system.
2. Comfortable and Convenient Smart Eazy (Easy + Cozy) Solution
- Eazy Sleep: Best sleep mode for pleasant sleeping.
- Eazy Connector: One-touch valve type connector.
- Eazy Talk: Voice guidance to dierent modes and setting information.
- Eazy Remote:Controlling with remote controller.
- Eazy Keeping: Convenience of storage by folding the product slim like a blanket.
3. Safety and More Safety to Smart Care Solution
- Usage of silicon, which creates no emission of harmful substance, is used to x the internal water hoses
inside the mattress and oor surface.
- Relaxing sterilization mode which sterilizes by heating water inside boiler and mattress.
- Application of the connector guard to cover the hosepipe connection between boiler and mattress to
prevent burns.
- Child-lock function to prevent accidents involving children.
- Application of other multiple safety devices.
(Horizontal leveling sensor, overheating prevention system, freezing prevention, automatic stop timer,
and water level sensor.)
4. Technical Support
- If troubleshooting does not help the issue, please call your distributor or Navien Technical Support
1-877-689-1541 if you need further assistance.
5. This appliance is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have been
given supervision or instruction concerning use of the appliance by a person responsible for
their safety.
Children should be supervised to ensure that they do not play with the appliance.
6. If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or
similarly qualied persons in order to avoid a hazard.
What is good about Comfort Mate!

Product Features
11
1. Individual Heating for Right and Left Side
This function allows for dierent individual temperature preferences, enabling both separate and
simultaneous controlling of both temperature zones (in celsius) in unit of celsius.
ýThe Individual heating is only available in dual zone mattress products.
ýIt is recommended that Individual heating be performed at a temperature higher than the
lowest temperature threshold for sleeping.
2. Reservation Mode
OFF Reservation:The product automatically turns o after a certain time between 3 hours to
12 hours, selected by the user.
3. Sleep Mode
This mode automatically adjusts temperature on a time basis to allow the user to sleep comfortably
in a pleasant temperature. Once the initial temperature and sleeping duration are set, the automatic
operation mode is enabled.
ýExample : If the sleeping duration is 8 hours, temperature increases by 1.8°F (1°C) from the initial
temperature for the rst hour, decreases by 7.2°F (4°C) in the next 3 and a half hours, and increase
by 3.6°F (2°C) in the remaining 3 and a half hours.
4. Sterilization Mode
This mode sterilizes existing bacterium and microorganisms in water, by rapid heating of the water
inside the boiler and mattress.
5. Child Lock Mode
This lock mode prevents children from operating the product for safety.
6. Voice Guidance
Provides voice guidance for user functions and temperature information when setting the
temperature.
7. Safety Devices
- Horizontal Leveling Sensor: checks the balance and will shut down the boiler if it is not level
- Overheating Prevention System: allows for safe operation by limiting the water temperature
- Freezing Prevention: protects the unit from freezing when the ambient temperature falls below 41°F (5°C)
- Automatic Stop Timer: prevents excessive operation by shutting down the unit after 15 hours of continuous
operation while saving energy
- Water Level Sensor: emits an alarm when the water level is low
- Self-Check System: the boiler pump will perform a self-check every 6 hours to ensure normal operation
- Water Overow Filter: prevents water spillage when the product is accidentially tilted

Items Included with the Product
12
Boiler Mattress
Remote Controller Rawganic Mattress Cover
User Manual Water Removal Kit
Storage Bags for Boiler / Mattress
EQH-20WUS, EQH-40WUS
Pleaseread the user manual carefully in order to use the product as intended.
Storethis manual in a place where it can easily be found.
Theremay be a change in appearance or dimensions of the product without
priornotice for improvement of product quality.
Purchasedproduct may not be exactly as shown in gures in the manual.
Installation Instructions
COMFORT MATE
ýAppearance and color of the Water Removal Kit may
dier depending onf product specication.
1EA
1EA
ýBattery included.
1EA
1EA 1EA
1EA
1EA
1SET

Quick connector
Water inlet
Water inlet stopper Control Panel
'LDO
Part Description
Boiler Control Panel
ýThe control panel uses a touch pad and can be controlled with just a light tap.
13
Dial /Select Button [Rotate / Press]
Volume Control/
Child Lock
Power
Left Side Heating
Mode Button
Right Side Heating
Boiler Mattress (Queen/Single)

Sleep Mode
Sterilization Mode
Operation SignDual Heating
OFF Reservation
Mute
Child Lock
Error Indicator Water Level Sign
Sleep mode
Temperature/
Time Control
OFF Reservation
Left/Right
Child Lock
Select Button
Move to Dual Mode Volume Control
Sleep Mode
OFF Reservation
Child Lock
Select Button
Volume Control
5HPRWH&RQWURO
5HFHLYHU
move to
normal mode
Temperature/
Time Control
14
Status Window
Remote Controller
Dual Zone Type Single Zone Type
ýWhen using remote controller, please point at the remote control receiver in the front
part of the boiler.
ýSingle zone type does not support individual heating mode.
ýPlease remove the battery discharge protection lm before use.
ýThe battery specication is CR2032.

How to install the Product.
15
Initial installation.
1. Select the location of usage.
Unfold mattress and place it on a desired location (Bed, oor)
ýKeep boiler more than 1 ft (30 cm) away from the mattress and place
in a secure location.
2. Connect the hosepipe to the mattress.
Straighten hosepipe in the mattress to prevent restriction of water ow.
Attach the connector from the hosepipe, which is attached to the
mattress, to water outlet/inlet on back side of the boiler, with the
connector button facing upward.
Push the connections together until you hear a‘click’.
3. Press the power button on the boiler.
Connect power cord of the boiler to an outlet before pressing the
power button.
ýWhen re-supplementing water during operation
Follow the procedures for injecting the water and slowly perform water injecting processes as stated in part 4.
There can be water remaining inside the mattress when re-supplementing water during operation,
so, be careful of water overow.
5. Start operating by setting desired temperature.
Refer to‘How To Use the Product’for setting the temperature.
4. Inject water
ةTotal amount of water injection inside the product is 1,000 ml
for Queen-type products (800 ml for single-type)
ت Follow the proecdure for injecting the water into the system,
open stopper.
ثFollow guidance to water injection order, and continue to check
on the water level lamp as you slowly inject the water into the inlet.
جWhen the product indicates that enough water has been injected,
stop injecting water and hold for a moment.
حWhen you are asked to inject water again, repeat processث and
جtwice.
خWhen completion of water injection is announced again, stop
injecting water, screw close clockwise until there is a click sound,
and cover the water inlet.
ýIf water level touches safety net inside water inlet, water may overow:
Be careful to keep water level low enough to prevent it from touching
the safety net.
ýIf you inject too much water after announcement of completion of
water injection, water could leak through the small air holes
on the stopper.
ýIt is recommended that water be lled higher than medium water
level for continuous and safe heating.
ФPlease only use puried water or ltered water.
ФDo NOT use ground water, sea water, or saline solution.
30Cm
click!
2
1 2
click!

How to Use the Product
16
Turning On and O
Controlling at Boiler
Controlling with Remote Controller
You can turn the product on and o by pressing [ ] button.
The default temperature for dual heating mode is at 95°F (35°C)
You can turn the product on and o by pressing [ ] button.
The default temperature for dual heating mode is at 95°F (35°C)
This product can be controlled using devices shown in top right side.

Setting Dual/Individual Heating Mode (Queen-Type)
17
Controlling at Boiler
Dual heating mode is activated by pressing [ ] button.
It is possible to set temperature at between 77°F (25°C) to 99°F (37°C)
by pressing dial, and when there is a‘UP’sign in status window,
you can press the dial to activate high temperature setting mode and
enable temperature setting from 100°F (38°C) to 109°F (43°C)
ýWhen setting a temperature higher than 37’C, the optimized temperature
for sleeping, the high temperature entry mode is applied for safety.
1) Dual Heating Mode
Set temperatures for left side(L) and right side(R) on the display screen
will ash, and set temperatures in left side and right side can be changed
simultaneously by rotating the dial.
2) Left Side Heating
Press left-side(L) button, and when vocal guide says‘left side heating,’
rotate the dial to set heating temperature as desired and press dial to
complete setting.
3) Right Side Heating
Press right-side(L) button, and when vocal guide says‘right side heating,’
rotate the dial to set heating temperature as desired and press dial to
complete setting.
4) Left or Right Exclusive Mode
When left-side(L) or right-side (R) button is pressed for 2 seconds,
heating of the selected side is stopped after vocal announcement.
Pressing left-side(L) button for 2 seconds stops heating on the left side
and activates right exclusive mode.

18
Controlling with Remote Controller
It is possible to set temperature at between 77°F (25°C) to
98.6°F(37°C) pressing the dial, and when there is a‘UP’sign in status
window, you can press OK button to activate high temperature
setting mode.
1) Dual Heating Mode
Dual heating mode is activated by pressing the power button,
and temperatures in left side and right side can be changed
simultaneously by pressing +/- button.
2) Left Side Heating
Press left-side(L) button, and when vocal guide says‘left side
heating,’ press +/- button to set heating temperature as desired
and press OK button to complete setting.
3) Right Side Heating
Press left-side(L) button, and when vocal guide says‘right side
heating,’ press +/- button to set heating temperature as desired
and press OK button to complete setting.
When left-side(L) or right-side (R) button is pressed for 2 seconds,
heating of the selected side is stopped after vocal announcement.
Pressing left-side(L) button for 2 seconds stops heating on the left
side and activates right exclusive mode.
4) Left/Right ONLY mode
When left-side(L) or right-side(R) button is pressed for 2 seconds,
heating of the selected side is stopped after vocal announcement.
Pressing left-side(L) button for 2 seconds stops heating on the left
side and activates right-side ONLY mode.

[ ] It is possible to set turn-o time after pressing [ ] button.
Time can be set between 3 hours to 12 hours by pressing +/-
button.
ýYou can adjust the set temperature after the OFF Reservation time
has been set.
ýAfter the OFF Reservation time is set, press the [DUAL MODE] button
on the Remote to reset back to the default setting.
Setting Reserve Feature
19
1. OFF Reservation
Controlling at Boiler
Controlling with Remote Controller
It is possible to set turn-o time by pressing [ MODE ] button in
dual heating mode.
Time can be set between 3 hours to 12 hours by rotating the dial.
ýDefault operating cycle is 8 hours.
ýYou can adjust the set temperature after the OFF Reservation time
has been set.
ýAfter the OFF Reservation time is set, press the [MODE] button to
reset back to the default setting.

Setting Child Lock (Lock Mode)
20
1. Activate child lock function by pressing [ ]button for
2 seconds.
2. Once the child lock function is set, [ ] icon button appears
on the status window and controlling is disabled.
3. Press the [ ] button for 2 seconds to deactivate the child
lock function.
1. Press [ ] button to activate the child lock function
2. Press [ ] button again to deactivate the child lock function.
Controlling at Boiler
Controlling with Remote Controller