64
NOTICE
Perform regular service and maintenance by qualified
service agency at least once every 12 months to assure
safe, trouble free operation and maximum efficiency.
11.2 Maintenance And Routine Servicing
Check and service boiler as necessary.
Frequency of servicing will depend upon installation
conditions and usage, manufacturer recommends annually.
• Check flue terminal outside and ensure it is not blocked.
• Operate boiler. Check operation of boiler's controls.
• Ensure all system connections and fittings are sound.
Correct any joints and fittings that maybe leaking.
• Follow safety valve manufacturer recommendations for
service.
To ensure boiler operates at peak efficiency, following checks
must be performed every year:
• check appearance and tightness of gas and combustion
circuit gaskets
• check condition and position of ignition and flame
sensing electrodes
• check condition of burner and its connection to
aluminum front plate
• check for dirt in combustion chamber. Use vacuum
cleaner for this cleaning operation
• check gas valve is calibrated correctly
• check there is no dirt in condensate trap
• check central heating system pressure
• check expansion tank pressure
• check vent system, clean if necessary
• check water cleanliness
• clean dirt separator, if used
• If using glycol mixture, check glycol PH, replace if out of
range
Record details and maintain service history.
11.3 Component Replacement And Cleaning
1.
Remove any deposits from heat exchanger using suitable
soft brush.
Do not
use brush with metallic bristles.
2.
Check condition of the combustion chamber insulation
panels. Any damaged panels must be replaced.
3.
Check condition of burner injector on the manifold,
carefully clean it with a soft brush if necessary.
Do not
use a brush with metallic bristles this might damage the
injector.
4.
Remove any fallen deposits from bottom of inner case.
5.
Clean burner with soft brush and check flame ports are
clear. Blockages may be removed with stiffer brush.
6.
Check condition of electrodes.
7.
Check spark gap, positioning and height of electrodes.
8.
Check fan impeller is clean and free to rotate.
9.
Replace used gaskets with new gaskets, see parts
literature for correct gasket kit number.
WARNING
Combustion chamber insulation in this product contains
ceramic fiber material. Ceramic fibers can be converted
to cristobalite in very high temperature applications.
The International Agency for Research on Cancer (IARC)
has concluded, Crystalline silica inhaled in the form
of quartz or cristobalite from occupational sources is
carcinogenic to humans (Group1). Avoid breathing dust
and contact with skin and eyes. Use NIOSH certified
dust respirator (N95). This type of respirator is based
on the OSHA requirements for cristobalite at the time
this document was written. Other types of respirators
may be needed depending on the job site conditions.
Current NIOSH recommendations can be found on the
NIOSH website http://www.cdc.gov/niosh/homepage.
html. NIOSH approved respirators, manufacturers,
and phone numbers are also listed on this website.
Wear long-sleeved, loose fitting clothing, gloves, and
eye protection. Apply enough water to the combustion
chamber lining to prevent dust. Wash potentially
contaminated clothes separately from other clothing.
Rinse clothes washer thoroughly.
NIOSH stated First Aid. Eye: Irrigate immediately.
Breathing: Fresh air.
!
WARNING
Before servicing, turn off electrical power to boiler
at service switch. Close manual gas valve to turn
gas supply OFF to boiler. Test for gas leaks on any
gas carrying components after servicing. Service
not complete until appliance operation verified per
Installation, Operation & Maintenance Manual provided
with boiler.
!
WARNING
Following service procedures must be performed by
qualified service agent. Boiler owner shall not attempt
these steps. Failure to do so could result in death or
serious injury.
!
CAUTION
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and
dangerous operation. Failure to follow these instructions
could result in minor or moderate injury.
!
PN 240012369, REV A [08/31/2018]
11 - GENERAL MAINTENANCE AND CLEANING
