Maintenance; General Maintenance; Oiled Bearing Circulators - Weil-McLain Ultra Manual

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gas fired water boiler

Maintenance

Disconnect power
Electrical shock hazard — Disconnect all electrical
power to the boiler before attempting maintenance
procedures. Failure to complete could result in se-
vere personal injury, death or substantial property
damage.
Install boiler jacket front door after
startup or servicing
Reinstall boiler jacket front door after start-up or
servicing. The boiler front door must be securely
fastened to the boiler to prevent boiler from drawing
air from inside the boiler room. This is particularly
important if the boiler is located in the same room
as other appliances.
Inspect boiler jacket door gaskets. Gaskets must be
in good condition, with no tears or gaps. Replace if
necessary.
Failure to keep the door securely sealed and fastened
could result in severe personal injury or death.
Perform start-up and check/out
Removing and reinstalling components can change
boiler behavior. After any maintenance procedure,
you must prove the boiler is operating correctly. To
do so, follow the complete procedure for boiler and
system start-up, beginning on page 70. Failure to
comply could result in severe personal injury, death
or substantial property damage.
Part number 550-100-066/0608
— Boiler Manual

General maintenance

1.
2.

Oiled bearing circulators

1.
2.
Cleaning the heat exchanger — pin
side
1.
2.
3.
4.
Oil motor in system requiring regular oiling.
See Oiled bearing circulators for motor oiling proce-
dures.
The circulator shipped with the Ultra boiler is water-
lubricated. No oiling is required.
Check other circulators in the system. Oil any circula-
tors requiring oil, following circulator manufacturer's
instructions. Over-oiling will damage the circulator.
The boiler contains ceramic fiber materials.
Use care when handling these materials per
instructions on page 79 of this manual. Fail-
ure to comply could result in severe personal
injury.
Shut down boiler:
a. Follow "To Turn Off Gas to Appliance" instructions
on boiler and Lighting instructions.
b. Do not drain boiler unless it will be exposed to freez-
ing temperatures. If using freeze prevention fluid in
system, do not drain.
Allow time for boiler to cool to room temperature if it
has been firing.
Remove jacket front door by removing two knurled
head screws at lower front. Lift door away from boiler
to remove.
Follow the applicable procedures under
& cleaning exchanger: Ultra-80 and Ultra-105 Only,"
page 90 or "Accessing & cleaning exchanger: Ultra-155,
-230, and -310 Only," page 91.
"Accessing
89