Check Condensate Drain System - Weil-McLain CGa User's Information Manual

Check monthly . . . . . . . . . . . . . . . .
Automatic air vents (if used)
1. See
Figure 4
2. Remove the cap from any
automatic air vent in the system
and check operation by
depressing valve
the tip of a screwdriver.
3. If the air vent valve appears to
be working freely and not
leaking, replace cap
all the way on.
4. Loosen cap A one turn to allow
vent to operate.
5. Have vent replaced if it does not
operate correctly.
Pilot burner flame
pilot flame (see
Proper
1. Blue flame.
2. Inner cone engulfing thermocouple (standing pilot)
or pilot flame sensor (spark-ignited pilot).
3. Thermocouple or pilot flame sensor glowing
cherry red.
Improper
1. Overfired — Large flame lifting or blowing past
pilot flame sensor.
2. Underfired — Small flame. Inner cone not engulfing
pilot flame sensor.
3. Lack of primary air — Yellow flame tip.
4. Incorrectly heated pilot flame sensor.
Figure 5 Pilot burner and flame, typical
Spark
electrode
Pilot flame
sensor (spark-
ignited pilots)
— or —
Thermocouple
(standing pilots)
Part Number 550-110-592/1099
.
Figure 4
Automatic air
vent
slightly with
B
A
B
, twisting
A
59204
):
Figure 5
pilot flame:
Main burner flame
main burner flame (see
Proper
1. Yellow-orange streaks may appear (caused by dust).
main burner flame:
Improper
1. Overfired — Large flames.
2. Underfired — Small flames.
3. Lack of primary air — Yellow tipping on flames
(sooting will occur).
Figure 6 Main burner flame, typical
Transparent
blue flame
Clean vent termination & air
intake screens
1. Remove all lint and debris from both the boiler air
intake screen and the flue discharge screen.
The boiler control module will sense blockage of
the air intake or flue and lockout if the blockage is
excessive. It will signal the failure by flashing the
appropriate indicator lights on the control board.
Inner
cone
2. If removing the debris does not allow the boiler to
operate correctly afterwards, contact your qualified
service technician to inspect the boiler and vent/
air systems.

Check condensate drain system

1. Inspect condensate drain fittings and tubing. Verify
that condensate can flow freely to drain.
59318
):
Figure 6
Inner flame
59319
— CGs boilers only
9