HTP PHE130-55 - Part 13: Maintenance

80
PART 13: MAINTENANCE
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 heater. Installer must also inform the owner
that the lack of proper care and maintenance of the heater 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.
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.
CHAMBER/BURNER
Combustion Chamber
Check burner tube and combustion chamber coils.
Clean according to maintenance section of manual.
Vacuum combustion chamber.
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 CO2 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.
Water Pressure
Switch
Check operation. Check for signs of leakage. 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 14 - *Continue annual maintenance beyond the 4
th
year as required.