User Guide

CGa, CGi, EG, EGH, LGB, PEG, Boilers
6
Part Number 550-142-801/1112
Maintain boiler using schedule below
Tankless water heater (EG and EGH only)
If boiler is used to supply domestic hot water, limit
control should be set to supply adequate hot water.
Weil-McLain tankless heaters are rated at 200 °F boiler
water temperature. To get rated output, set low limit at
200 °F. Limit can be adjusted to meet system hot water
requirements. Differential can be set to 15 ° and adjusted
to control level. Lowering the differential will cause a
slight variation in water temperature but will decrease
burner on-off cycling. High limit should be set at least
20 ° above low limit.
Service technician
(covered in Boiler Manual – for use only by a
qualified service technician)
Owner maintenance
(see following pages for instructions)
A
nnuAl
stArt
-
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
Service:
• Oiled-bearing circulators
• Temperature sensor
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 air openings
• Check boiler pressure/
temperature gauge
Monthly
• Check boiler interior piping
• Check venting system
• Check air vents
• Check boiler relief valve
• Check automatic air vents (if
used)
Periodically
• Test low water cutoff (if used)
Every 6 months
• Operate relief valve
End of season
• Shut down procedure