Weil-McLain GOLD CGt Manual page 40

GOLD CGt Gas-Fired Water Boiler — Boiler Manual
10b
Service and maintenance — annual start-up
❏
Start-up . . . . . . . . .
1. Perform start-up procedures in section
32 of this manual.
2. Verify
cold fill pressure
is working properly.
3. Verify
antifreeze level
concentration and that inhibitor level is correct.
4.
Check gas piping
and section
7a
of leakage and all piping and connections are in
good condition.
5. Read the
Operating instructions
of this manual or on boiler label) applying to
36
the boiler.
6. Start the boiler following the
, page 36 of this manual.
instructions
❏
Service annually . . . . .
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 requiring oil, following circulator
manufacturer's instructions. Over-oiling will
damage the circulator.
40
, pages 30-
7
is correct and that fill system
(if used) is at the right
, per manual section , page 28
5
, page 30, verifying no indications
(
Figure 30
Operating
❏
Check/test . . . . . . .
Gas piping
1. Sniff near floor and around boiler area for any
indication of a
2.
Test gas piping using bubble test
this manual, if there is any indication of a leak.
Cold fill and operating pressures
1. While the system is cold, note the
on the boiler pressure/temperature gauge. Verify that
cold fill pressure is correct.
2.
Watch the pressure
up to ensure pressure rise is normal. Too high a
rise would indicate a waterlogged or undersized
expansion tank.
, page
Air vents and air elimination
1. Inspect automatic air vents (if
used). Also inspect air separators
to ensure they are operational.
2. The cap must be unscrewed one
turn to allow air to escape.
3. See
leaking, remove cap
briefly push valve
release to clean the valve seat.
4. Replace cap
way onto valve
unscrewing one turn.
Limit controls and cutoffs
1. Inspect and test the boiler limit control. Verify
operation by turning control set point below boiler
temperature. Boiler should cycle off. Return dial to
original setting.
2. Inspect and test additional limit controls or low
water cutoffs installed on system.
3. Inspect and test the ambient temperature switch.
Verify it is mounted correctly, as shown on page 6.
Check switch operation by removing one wire
from the switch. Boiler shut down until the wire is
replaced.
.
gas leak
as the boiler and system heat
. If the air vent is
Figure 31
and
A
and then
B
by twisting all the
A
and then
B
Part Number 550-110-290/0501
, per section of
5
pressure reading
A
B
071036
Figure 31
Automatic air
vent, typical