Failure to adhere to the guidelines on this page can result in severe personal
injury, death or substantial property damage.
Boiler service and maintenance —
❏
❏
To avoid electric shock, disconnect all electrical supplies to the boiler before perform-
ing maintenance if wiring will be exposed.
❏
❏
To avoid severe burns, allow boiler to cool before performing maintenance.
❏
❏
You must maintain the boiler as outlined in this manual and
have the boiler started
up and serviced at least annually
by a qualified service technician to ensure boiler/
system reliability.
Boiler operation —
❏
❏
Do not block flow of combustion or ventilation air to boiler. This boiler is equipped
with a control which will automatically shut down the boiler should air or vent be
blocked. If vent or air blockage is easily accessible and removable, remove it. If the
boiler display indicates a manual reset lockout, follow the procedure in Figure 4, page 7
to reset the boiler. (If blockage is not obvious or cannot be removed, have the boiler
and system checked by a qualified service technician.)
❏
❏
Do not allow contaminated air to enter the boiler room (or air inlet pipe if direct
vented). See page 8 for details.
❏
❏
Should overheating occur or gas supply fail to shut off, do not turn off or disconnect
electrical supply to boiler. Instead, shut off the gas supply at a location external to
the appliance.
❏
❏
Do not use this boiler if any part has been under water. Immediately call a qualified
service technician to inspect the boiler and to replace any part of the control system
and any gas control, which has been under water.
Boiler water —
❏
❏
Have boiler water chemistry checked at least annually by a qualified service technician.
❏
❏
DO NOT use petroleum-based cleaning or sealing compounds in boiler system. Gaskets
and seals in the system may be damaged. This can result in substantial property damage.
❏
❏
DO NOT use “homemade cures” or “boiler patent medicines”. Serious damage to
boiler, personnel and/or property may result.
❏
❏
Continual fresh makeup water will reduce boiler life. Mineral build-up in boiler heat
exchanger reduces heat transfer, overheats the metal, and causes heat exchanger fail-
ure. Addition of oxygen can cause internal corrosion in system components. Leaks in
boiler or piping must be repaired at once to prevent makeup water.
❏
❏
Do not add cold water to hot boiler. Thermal shock can cause boiler heat exchanger
to crack.
STOP! READ THIS BEFORE PROCEEDING . . .
Part number 550-100-088/0814
3
SlimFit
™
gas
-
fired
water
boiler
—
User’s Information Manual
