3
Part Number 550-110-726/0703
GWA/GWI/GWS
Gas-Fired Water Boilers –
User’s Information Manual
Service technician
(covered in Boiler Manual — for use only by a
qualified service technician
)
Owner maintenance
(see pages 9 – 11 for instructions)
A
NNNUAL
STA
R
T
-
UP
❏
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
• Condensate drain system (GWI and
GWS boilers only)
❏
Service:
• Inducer motor (GWI and GWS boilers
only)
• Oiled-bearing circulators
❏
Start-up:
• Perform start-up per manual
❏
Check/test:
• Gas piping
• Cold fill and operating pressures
• Air vents and air elimination
• Limit controls and cutoffs
• Expansion tank
• Boiler relief valve
❏
Review:
• Review with owner
❏
Daily
• Check boiler area
• Check boiler pressure/
temperature gauge
• Check air openings
❏
Monthly
• Check boiler piping
• Check venting system
• Check condensate drain system
(GWI and GWS boilers only)
• Check boiler relief valve
• Check automatic air vents (if
used)
• Check pilot and main burner
flames
• Check and clean vent termination
& air intake screens — GWS boil-
ers only
❏
Periodically
• Test low water cutoff (if used)
• Oil inducer motor (GWI and GWS
boilers only)
❏
Every 6 months
• Operate relief valve
❏
End of season
• Shut down procedure
Maintain your boiler using this schedule:
To locate Lighting or Operating Instructions:
Find your boiler model number on boiler nameplate (begins with GWA, GWI or GWS). GWA model number will
include a suffix indicating pilot ignition — “S” for standing pilot or “I” for spark-ignited pilot. Read the valve
manufacturer’s model and name on the boiler gas valve. Locate the correct “Lighting or Operating Instructions”
using the table below. Use only the instructions applying to your boiler model and gas valve. If you are in doubt
which to use, please contact your boiler installer/technician for assistance.
GWA standing pilot
With gas valve:
Page
GWA spark-ignited pilot
With gas valve:
Page
GWI
or
GWS spark-ignited pilot
With gas valve:
Page
Honeywell VR8200/8300
4
Honeywell VR8204/8304
White-Rodgers 36C or 36E
6
All gas valves
8
Robertshaw 7200
5
Robertshaw 7200
7
