Instructions

PRESTIGE Solo 175 & 250
Service Parts Instructions
12
Description
Inspect boiler jacket area: clean and vacuum as needed
Clean condensate drain and fill with fresh water
Check for leaks: water, gas, flue and condensate
Verify vent piping is in good condition, sealed tight, well supported and unobstructed
Verify combustion air piping is in good condition, sealed tight, well supported and unobstructed
Verify area surrounding unit is free from contaminating products and flamable vapors or liquids
Check boiler pressure, piping and expansion tank, air vent and relief valve
Check boiler water for clarity and pH
Check pH of condensate neutralizer if applicable
Check control settings
Check igniter: sand off any white oxide, clean and reposition
Check ignition cable and ground wiring to igniter
Check sight glass assembly
Check all control wiring and connections
Check burner flame pattern (stable and uniform)
Verifiy boiler input by clocking the gas meter (NG only). Provides indication of restricted burner
Perform combustion test and record values:
High Fire Results:
Gas Type: NG or LP
Gas Pressure:
Inches WC
CO2: %
ppm
CO:
Check boiler efficiency as outlined below:
Record supply and flue temps during high fire test
Verify and record flame rectification signal
Supply Temperature ºF
Flue Temperature ºF
Compute difference between Flue Temp- Supply Temp ºF
If difference is greater than 54ºF [30ºC], clean flue side and water side of heat exchanger
Low Fire Results:
Gas Type: NG or LP
Gas Pressure:
Inches WC
CO2: %
ppm
CO:
Cleaning Flue Side of Heat Exchanger (Replace gaskets as needed)
Cleaning of Water Side of Heat Exchanger (if required)
Maintenance Check List