77
LP- 428 REV. 9.2.14
The boiler requires minimal periodic maintenance under normal conditions. However, in unusually dirty or dusty conditions, periodic
vacuuming of the cover to maintain visibility of the display and indicators is recommended.
Periodic maintenance should be performed once a year by a qualified service technician to assure that all the equipment is operating
safely and efficiently. The owner should make necessary arrangements with a qualified heating contractor for periodic maintenance of
the boiler. Installer must also inform the owner that the lack of proper care and maintenance of the boiler may result in a hazardous
condition.
INSPECTION ACTIVITIES
DATE LAST COMPLETED
PIPING
1
st
YEAR
2
nd
YEAR
3
rd
YEAR
4
th
YEAR*
Near heater piping
Check heater and system piping for any sign of
leakage; make sure they are properly supported.
Vent
Check condition of all vent pipes and joints. Check for
any obstructions at exhaust and intake termination
points. Check clearances (see Venting Section for
further details).
Gas
Check Gas piping, test for leaks and signs of aging.
Make sure all pipes are properly supported.
SYSTEM
Visual
Do a full visual inspection of all system components.
Functional
Test all functions of the system (Heat, Safeties)
Temperatures
Verify safe settings on heater or Anti-Scald Valve
Temperatures
Verify programmed temperature settings
ELECTRICAL
Connections
Check wire connections. Make sure they are tight.
Smoke and CO
detector
Verify devices are installed and working properly.
Change batteries if necessary.
Circuit Breakers
Check to see that the circuit breaker is clearly labeled.
Exercise circuit breaker.
Switch and Plug
Verify ON/OFF switch and convenience plug are both
functional
CHAMBER/BURNER
Combustion Chamber
Check burner tube and combustion chamber coils.
Clean according to maintenance section of manual.
Vacuum combustion chamber. Replace any gaskets
that show signs of damage.
Spark Electrode
Clean. Set gap at ¼”.
Flame Probe
Clean. Check ionization in uA (d7 on status menu in
Start-up Procedures). Record high fire and low fire.
CONDENSATE
Neutralizer
Clean out condensate neutralizer. Use wet/dry
vacuum. Check for all potential obstruction issues.
Replenish marble chips or lime crystals if needed (no
smaller than ¾”). Refill system with water. WARNING:
You must verify flow of condensate and make sure the
cap is connected properly before leaving boiler
unattended.
Condensate system
1. Check entire condensate system to make sure there
are no obstructions in flow.
2. Make sure the condensate pump is working
properly, verify all connections.
GAS
Pressure
Measure incoming gas pressure (
3.5” to 14” W.C.)
Pressure Drop
Measure drop in pressure on light off (no more than 1”
W.C.)
Check gas pipe for
leaks
Check piping for leaks. Verify that all are properly
supported.
COMBUSTION
CO/CO2 Levels
Check CO and CO
2
levels in Exhaust (See Start-up
Procedures for ranges). Record at high and low fire.
SAFETIES
ECO (Energy Cut
Out)
Check continuity on Flue and Water ECO. Replace if
corroded.
Thermistors
Check wiring. Verify through ohms reading.
FINAL INSPECTION
Check list
Verify that you have completed entire check list.
WARNING: FAILURE TO DO SO COULD RESULT IN
SERIOUS INJURY OR DEATH.
Homeowner
Review what you have done with the homeowner.
Table 25 -
*Continue annual maintenance beyond the 4
th
year as required.
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