41
Part Number
550-110-290/0219
CGt
GAS-FIRED WATER BOILER — Series 2 —
Boiler Manual
❏
Inspect . . .
Burners and base
The boiler contains ceramic fiber and
fiberglass materials. Use care when han-
dling these materials per instructions
on page 58 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 reposi-
tion insulation as necessary. Failure to
replace damaged insulation can result
in a fire hazard, causing severe personal
injury, death or substantial property
damage.
1. After turning off power to the boiler, remove the base burner
shield (
Figure 36
, item
4
, page 62).
2. Inspect burners and all other components in the boiler base.
3. If burners must be cleaned see
Burner cleaning instructions
below.
4. Inspect the slotted jacket cooling openings in the bottom left
and right of the base pan (
Figure 36
, item
7
, page 62).
5. Inspect the base insulation. Pay attention to the
WARNING
on
page 58 regarding working with insulation materials. Verify
that the insulation is intact and secure against all four sides
of the base.
Burner cleaning instructions
Airborne materials, such as fiberglass and dust,
are present during construction and remodeling.
These materials can be drawn in with the com-
bustion air and obstruct burner ports, resulting
in carbon monoxide production, a fire hazard,
or building freeze damage. Read and follow the
WARNING
on page 9. Failure to inspect and clear
gas burner ports could result in severe personal
injury, death or substantial property damage.
1. Remove burner shield and the base pan air baffle. Next remove
the pilot bracket assembly. Then remove the four screws secur-
ing the burner tray to the manifold and slide the burner tray
out under the manifold.
2. Inspect each burner to insure that every port is completely
open.
3. If any port is not completely clear, run a vacuum at the burner
inlet while cleaning the burner ports with a wire brush. The
vacuum will help to draw any airborne material out of the
burner.
4. Reinstall components, starting with the burner tray, then the
pilot bracket assembly, burner baffle, and air inlet top and
front panels.
5. Follow the start-up procedure in the boiler manual.
Condensate drain system
1. Inspect condensate drain fittings and tubing. Verify that con-
densate can flow freely to drain.
❏
Service . . .
Inducer motor
1. With boiler power
off
, place a few drops of S.A.E. 20 motor
oil in each of the two oil cups.
Use only
S.A.E. 20 motor oil
to lubricate the
inducer motor. Do not use universal house-
hold oils. Motor could be damaged, resulting
in possible severe property damage.
Oiled-bearing circulators
1. The circulator shipped with the CGt boiler is water-lubricated.
No oiling is required.
2. Check other circulators in the system. Oil any circulators re-
quiring oil, following circulator manufacturer’s instructions.
Over-oiling will damage the circulator.
❏
Start-up . . .
1. Perform all start-up procedures in Section
7
of this manual.
2. Verify
cold fill pressure
is correct and that fill system is work-
ing properly.
3. Verify
antifreeze level
(if used) is at the right concentration
and that inhibitor level is correct.
4.
Check gas piping
per manual Sections
5
, and
7a
, verifying no
indications of leakage and all piping and connections are in
good condition.
5. Read the
Operating instructions
(
Section
10c
of this manual
or on boiler label) applying to the boiler.
6. Start the boiler following the appropriate
Operating instruc-
tions
(
Section
10c
of this manual or on boiler label).
11b
Service and maintenance – annual start-up
(cont.)
