Delta PG PLUS-25 - Manual (Page 64)

58
Maintenance Schedule
SECTION XV - Maintenance Schedule
Service Technician
At least on an annual basis the following main-
tenance should be performed by a qualified ser-
vice technician:
General
• Attend to any reported problems.
• Inspect the interior of the combustion
chamber; clean and vacuum if necessary.
• Clean the condensate trap in the vent
system and fill with fresh water.
• Check for leaks; water, gas, flue and
condensate.
• Verify flue vent piping and air inlet pip-
ing are in good condition and sealed
tight.
• Check primary system water pressure/
primary system piping/primary expan-
sion tank.
• Check domestic water pressure/domes-
tic system piping/domestic thermal
expansion tank.
• Check domestic and primary thermo-
stat settings.
• Check ignition electrode (sand off any
white oxide; clean and reposition).
• Check ignition wiring and ground
wiring.
• Check all control wiring and connections.
• Check burner flame pattern (stable and
uniform) and flame.
Additional items if combustion or performance
is poor:
• Clean baffles and flue ways.
• Remove burner assembly and clean
burner head using compressed air only.
Once the maintenance items are completed,
review the service with the owner.
Owner Maintenance
Daily:
• Check the area around the unit.
• Check the combustion air inlet and ven-
tilation openings for blockage.
• Check the temperature/pressure gauge.
Monthly:
• Check vent piping.
• Check combustion air inlet piping.
• Check the pressure relief valve.
• Check the temperature/pressure relief
valve.
• Check the vent condensate drain system.
• Check the automatic air vents in the pri-
mary system.
Every 6 months:
• Check both primary piping and gas
supply piping for corrosion or potential
signs of leakage.
• Operate the pressure relief valve.
• Operate the temperature/pressure relief
valve.
Periodically:
• Check the operation of the domestic
mixing valve.
Follow the maintenance pro c e d u re s
given throughout this manual. Failure
to perform the service and maintenance
or follow the directions in this manual
could result in damage to the PERFOR-
MANCE PLUS or in system compo-
nents, resulting in severe personal
i n j u ry, death or substantial pro p e rt y
damage.
WARNING