32
Part Number 550-142-320/0720
GWA
Series 3
Gas-Fired Water Boilers –
Boiler Manual
Follow the “Service and maintenance” procedures given throughout this manual and in component
literature shipped with the boiler. See “
Read this first
” on page 2. Failure to perform the service and
maintenance could result in damage to the boiler or system. Failure to follow the directions in this manual
and component literature could result in severe personal injury, death or substantial property damage.
Table 7 Service and maintenance schedules (service technician and owner)
Service technician
(see following pages for instructions)
Owner maintenance
(see User’s Information Manual for instructions)
A
nnu
A
l
st
A
r
t
-
up
o
Inspect:
• Reported problems
• Boiler area
• Air openings
• Flue gas vent system
• Pilot and main burner flames
• Water piping
• Boiler heating surfaces
• Burners, base and inlet air box
o
Service:
• Oiled-bearing circulators
• Temperature sensor
o
Start-up:
• Perform start-up per manual
o
Check/test:
• Gas piping
• Cold fill and operating pressures
• Air vents and air elimination
• Limit controls and cutoffs
• Expansion tank
• Boiler relief valve
o
Review:
• Review with owner
o
Daily
• Check boiler area
• Check boiler pressure/
temperature gauge
• Check air openings
o
Monthly
• Check boiler piping
• Check venting system
• Check boiler relief valve
• Check automatic air vents (if used)
• Check pilot and main burner flames
o
Periodically
• Test low water cutoff (if used)
o
Every 6 months
• Operate relief valve
o
End of season
• Shut down procedure
12 Service and maintenance
