76
LP- 446 REV. 9.3.14
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
Check condensate neutralizer. Replace if necessary.
Condensate hose
Disconnect condensate hose. Clean out dirt. Fill with water
to level of outlet and re-install. (NOTE: Verify the flow of
condensate, making sure that the hose is properly
connected during final inspection.)
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.
Flow Switch
Activate heating call and monitor system to ensure flow
switch and pump are operating correctly.
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 30 -
*Continue annual maintenance beyond the 4
th
year as required.
Содержание 500 HL
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