
Boiler
Component
Maintenance Required
Frequency
Check
test again to try and flush any debris that may be lodged
in the valve. If repeated tries fail to stop the leakage,
contact a licensed contractor or qualified service
personnel to replace the valve.
While performing a "try lever test", a quantity of heat
transfer fluid will be discharged from the piping system
and the system pressure will drop. This fluid must be
replaced. To refill and pressurize your system, we
recommend using a system pressurization appliance
such as an Axiom Industries model series. Capture the
discharged fluid in a container and recycle it by
returning it to the system feeder appliance. This is
particularly important when your system contains
treatment chemicals or glycol solutions. If the system
employs plain water, the boiler auto fill valve must be
turned on in order to recharge the lost fluid.
7.3 Replacing the fan, gas valve, and burner
This section documents the following maintenance procedures:
Replacing the fan
Replacing the gas valve.
Replacing the burner.
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Section: Service and maintenance
Summary of Contents for SL Series
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Page 12: ...Figure 5 Top view SL 40 399 G3 Figure 6 Bottom view SL 40 399 G3 8 Section Specifications...
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Page 110: ...Internal wiring diagram Figure 46 Internal wiring diagram 106 Section Appendices...
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