8
INSTALLATION MANUAL
ENGLISH
WARNING
Turn the breaker off when cleaning the product.
!
CAUTION
Gloves should be worn when doing the
maintenance work.
!
HUMIDIFIER MAINTENANCE
Inspection and Maintenance of the Humidifier
- Have your dealer do the following inspections in order to get the
longest use.
- In order to prevent harmful bacteria from generating, ask your dealer
to do maintenance on humidifying unit portion at the beginning or the
end of the heating season.
Inspected
Part
Content of maintenance
Problems if
maintenance is not
carried out
Items to be
inspected
Solution
Feed
water
tank
Check for operation
of float switch
Clean if it does not
work properly due to
build-up.
Insufficient
humidifying.
Overflowed feed
water tank.
Check for dirt
Clean if very dirty.
Weak fan strength.
Reduced humidifying
capacity.
Solenoid
valve
Check for shutting
and opening. Check
in a similar fashion
when checking the
float switch
operation.
Replace if it doesn’t
work.
Insufficient
humidifying.
Overflowed feed
water tank.
(Increased tap water
consumption.)
Replacing the Humidifier element
- The humidifier element should in general be replaced once every
three years when supply water is soft water, but outside factors
(water quality, operating times) may shorten its productive life.
- Contact your dealer if you have any questions.
Method to Clean and Replace Each Part
1
Cleaning of Air Filter
- Clean dirt from the air filter using a vacuum cleaner or wash with
water. (if dirt is conspicuous, wash with a neutral detergent in
lukewarm water)
- After washing with water, dry well in the shade.
(Do not expose the air filter to direct sunlight or heat from a fire
when drying it)
- If the air filter is damaged, purchase it from the service center or
professional agent.
2
Cleaning of Total Heat Exchanger
Suck dusts adhered to the surface of the Total heat exchanger with
a cleaner.
- Use the cleaner that attached to brush at its nozzle, and use a soft
brush.
Cleaner
Air Filter
NOTE
!
This note is only applied to model that there
is humidity function.
When humidifying fails, the remote con-
troller does not display any error code.
(Just twinkle the icon of Humidification “
”
for 30 minutes and disappeared or dis-
play warning icon on the side of Humidifi-
cation icon.)
Usage under that status will lead to insuffi-
cient humidification and increased tap water
consumption.
The solenoid valve and float switch should
be checked at the beginning of heating sea-
son.
- Do not use a hard nozzle on the cleaner.
(Otherwise, surface of the Total heat exchanger may be damaged.)
- Never wash the Total heat exchanger with water.
- Consider replacing after two years from the date of purchase.
- Please inquire to the Service Center about replacement costs
within two years from the date of purchase.
- For service, always contact the dealer or an Authorized Service
Center.
Total Heat Exchnger
Air Filter
!
Summary of Contents for LZ-H050GXH4
Page 9: ......