Start-Up - Weil-McLain GOLD CGa Installation And Maintenance Manual

GOLD
6d
Start-up —
The boiler model suffix will be "
pilot boilers (suffix "
operation and lighting/operating information.
Check burner flames
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.
Main burner flame
main burner flame (see
Proper
1. Yellow-orange streaks may appear (caused by dust).
Improper
1. Overfired — Large flames.
2. Underfired — Small flames.
3. Lack of primary air — Yellow tipping on flames
(sooting will occur).
Check vent damper operation
1.
Raise room thermostat to call for heat
damper actuator will slowly open vent damper.
2.
When vent damper is fully open
will open and main burners will ignite. (Spark-
ignited pilot controls will first light pilot, then allow
main burners to ignite.)
Vent damper must be fully open before main burners
light. If vent damper does not fully open, flue products
such as carbon monoxide will escape into house, causing
severe personal injury or death.
3.
Lower thermostat setting
will go out, then vent damper will close.
32
CGa Gas-Fired Water Boiler
verify operation
". For spark-ignited
SPD
"), see
PID Section 8
):
Figure 21
pilot flame:
Figure 22
main burner flame:
— Main gas valve
— Main burner flames
Figure 21 Typical pilot burner flame
or for
9
Spark
electrode
Pilot flame
sensor (spark-
ignited pilots)
— or —
Thermocouple
(standing pilots)
Figure 22 Typical main burner flame
):
4.
Repeat Steps 2 through 4
operation.
5. Return thermostat to normal setting.
6. Set thermostat heat anticipator setting indicated on
— Vent
wiring diagram.
Check venting system operation
1. Check venting system at least once a month during
heating season. With boiler firing, hold candle or
match below lower edge of draft hood "skirt". If
flame does not blow out, but burns undisturbed,
vent system is functioning properly. If flame blows
out or flickers drastically, inspect vent system for
obstructions or other causes of improper venting
(such as exhaust fans in boiler room).
Transparent
blue flame
Inner flame
59319
several times to verify
Part Number 550-110-593/1099
Inner
cone
59318