65
. Service and Maintenance
(continued)
NOTICE
NOTICE
This appliance has a limited warranty, a copy of
which is included in shipping. It is the Responsibility
of the installing contractor to see that all controls
are correctly installed and are operating properly
when the installation is complete.
Warranty does not cover damage or malfunction
if the steps mentioned in this manual are not per
-
formed at the intervals specified.
Water leaks can cause severe corrosion damage
immediately repair any leaks found.
Figure 27: UV Scanner Assembly
4.
Burner and Combustion Chamber
a. To gain access to burner and combustion
chamber, first remove front jacket panel and then
disconnect gas inlet pipe from the gas valve at the
union connection.
b.
Remove the front left side jacket panel.
c.
Remove all eight bolts (M10 x 40) used to fasten
the burner door to the heat exchanger.
d. This unit is equipped with a sliding mechanism
shown in
Figure 28. Position (1) the burner
assembly slides out of the combustion chamber,
(2) rotate away from the combustion chamber
and (3) sliding back to allow full access to the
combustion chamber for inspection and service.
e.
Gently blow compressed air over the burner
surface and door insulation to remove lint and
debris. Replace burner if the surface shows any
signs of damage due to improper handling or gas
valve combustion settings.
f. Do not use acid or alkali products or metallic
brush to clean the heat exchanger coils. Follow
these guidelines to clean the heat exchanger:
i.
Spray the heat exchanger coils with white
vinegar (acetic acid) and then flush it with clean
water after 20 minutes.
WARNING
WARNING
Failure to properly secure the burner/blower/gas
valve assembly to the heat exchanger could lead
to property damage, personal injury or loss of life.
Read, understand and follow all the instructions
and warnings contained in ALL of the component
instruction manuals.
Assure that all safety and operating controls and
components are operating properly before placing
the appliance back in service.
Annually inspect all vent gaskets and replace any
exhibiting damage or deterioration.
!
1
2
3
ii. Do not spray burner, combustion chamber
divider, or burner door insulations .
5.
Flue outlet connection
a.
Visually inspect flue outlet gasket for damage or
deterioration, replace if necessary.
Figure 28: Burner Door Opening
3.
UV Scanner/ Flame Sensor
a.
Inspect ultra-violet (uv) scanner lens and
remove any debris with a soft cloth. If
condensate or fog is observed on the glass,
the gaskets may need to be replaced.
UV Scanner
Bushing
Nipple
Mount
Sight Glass
Graphite Gasket
Sight Glass
Gaskets
