LINE
K1
COMB
BLOWER
K5
IGNITER
ELEMENT
LINE
K1
COMB
BLOWER
K5
IGNITER
ELEMENT
LINE
K1
COMB
BLOWER
K5
IGNITER
ELEMENT
3. Combustion Blower Powered
NOTICE:
If an error message is still indicated after removal of the replaceable 3 amp fuse on the CONTROL,
there is a problem with the transformer. The TRANSFORMER has an internal non-replaceable fuse.
The transformer must be replaced. Please contact your local distributor or service professional.
STATUS INDICATIONS UNDER NORMAL CONDITIONS
PRESSURE
ECO/VENT
24
SWITCH
SWITCH
VAC
CONTROL
ELECTRONICS
WATER
CONTROL
TEMPERATURE
HEALTH
1. Idle Status
PRESSURE
ECO/VENT
24
SWITCH
SWITCH
VAC
CONTROL
ELECTRONICS
WATER
CONTROL
TEMPERATURE
HEALTH
2. Call for Heat
PRESSURE
ECO/VENT
24
SWITCH
SWITCH
VAC
CONTROL
ELECTRONICS
WATER
CONTROL
TEMPERATURE
HEALTH
K3
K4
GAS
GAS
VALVE
VALVE
RLY 2
RLY 1
GAS
VALVE
K1
K5
K3
K4
K3
K4
GAS
GAS
VALVE
VALVE
RLY 2
RLY 1
GAS
VALVE
K1
K5
K3
K4
K3
K4
GAS
GAS
VALVE
VALVE
RLY 2
RLY 1
GAS
VALVE
K1
K5
K3
K4
16
KEY:
Lamp ON
Lamp OFF
Lamp Flashing