Weil-McLain CGA Series 2 Manual page 44

CGa Series 2 Gas-Fired Water Boiler — Boiler Manual
10b
Service & maintenance – annual start-up
❏
Boiler heating surfaces
1. Disconnect the vent pipe at the boiler draft hood
and remove draft hood after turning off power to
the boiler.
2. Use a bright light to inspect the boiler flue collector
and heating surfaces.
3. If the vent pipe or boiler interior surfaces show
evidence of soot, follow
surfaces
collector and clean the boiler if necessary after closer
inspection of boiler heating surfaces.
4. If there is evidence of rusty scale deposits on boiler
surfaces, check the water piping and control system
to make sure the boiler return water temperature is
properly maintained (per this manual).
5. Reconnect vent and draft hood. Replace all boiler
components before returning to service.
6. Check inside and around boiler for evidence of any
leaks from the boiler. If found, locate source of leaks
and repair. Burners and base
1. After turning off power to the boiler, remove the
jacket door and base access panel (
page 60).
2. Inspect burners and all other components in the
boiler base.
44
Inspect . . .
Cleaning boiler heating
in this manual section. Remove the flue
The boiler contains ceramic
fiber and fiberglass materials.
Use care when handling these
materials per instructions on
page 57
of this manual. Failure
to comply could result in severe
personal injury.
If insulation is damaged or
displaced, do not operate the
boiler. Replace or reposition
insulation as necessary. Failure
to replace damaged insulation
can result in a fire hazard,
causing severe personal injury,
death or substantial property
damage.
3. If burners must be cleaned, raise rear of each
burner to release from support slot, slide forward
and remove. Then brush and vacuum the burners
thoroughly, making sure all ports are free of debris.
Carefully replace all burners, making sure burner
with pilot bracket is replaced in its original position
and all burners are upright (ports up).
4. Inspect the base insulation.
a. Pay attention to the
b. Verify that the insulation is intact and secure
❏
Oiled-bearing circulators
1. The circulator shipped with the CGa boiler is water-
lubricated. No oiling is required.
2. Check other circulators in the system. Oil any
circulators requiring oil, following circulator
manufacturer's instructions. Over-oiling will
damage the circulator.
Temperature sensor
1. The temperature sensor may accumulate deposits on
the probe surface. Annual inspection and cleaning
of the probe will improve boiler performance.
Disconnect power, unplug harness from sensor.
a. Drain boiler water to a level below the sensor.
b. Remove sensor from boiler.
c. Wipe any built up contaminates from probe
d. Reinstall sensor into boiler. Do not overtighten.
❏
1. Perform all start-up procedures given in Section
of this manual.
2. Verify
system is working properly.
3. Verify
centration and that inhibitor level is correct.
Check gas piping
4.
verifying no indications of leakage and all piping
and connections are in good condition.
5. Read the
Section
Figure 32 4
, item ,
6. Start the boiler following appropriate
instructions
WARNINGS
regarding working with insulation materials.
against all four sides of the base.
Service . . .
and insulator surfaces.
Start-up . . .
cold fill pressure is correct and that fill
antifreeze level
(if used) is at the right con-
, per manual Sections
Operating instructions
9
) applying to the boiler.
(manual Section 9
Part Number 550-142-900/0519
(cont.)
on page 57
6
4 6
and ,
(manual
Operating
).