HTP 850 LPHL - Manual (Page 68)

68
LP- 205 REV. 3.28.14
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 intake and exhaust 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 18 - *Continue annual maintenance beyond the 4 th year as required.