Bard WG Series Installation Instructions Manual page 51

Line 1
Terminal
Block
Compressor
Contactor
L1 T1
C NC
Compressor
Contactor Aux.
FURNACE
1
CONTROL
BOARD
4 5
PRIM.
W2
FLAME
LIMIT
ROLLOUT
R
W1
Y1
2
L1 K3
K2
D1
G
15 14 12 10 6 2 13 3 1
Y2
C
Factory
Optional
High Voltage
Low Voltage
H
Dual Can
Capacitor
C
F
A
INDUCED DRAFT
Outdoor Fan
BLOWER RELAY
Motor
240
Transformer
K1
9 7 10 8 6
PRESSURE
SWITCH
FURNACE CONTROL BOARD
K4
K4
COOL HEAT UNUSED
16 Pin Plug for
Indoor Blower Motor
A
Wires Connect
if Option Not
Used
WG3S2-A, WG4S2-A, WG5S2-A
230/208-60-1
Power Source
Ground
R
S
LOW AMBIENT
CONTROL (OPT.)
INDUCED DRAFT
BLOWER MOTOR
4 2
208
Use for 208V Operation
COM
24VAC
2
K3
K2
K1
K4
K1
3 11 12
GAS
VALVE
HIGH PRESSURE
CONTROL
LOW PRESSURE
CONTROL
L2 L2 L2
208/230/60/1
5 Pin Plug
4 3 5
for Indoor
Blower Motor
Compressor
Compressor
Contactor
C T2
A
Crankcase
Heater
Y CC
HPC
COMPRESSOR
R
ALR
CONTACTOR
C
LPC
COMPRESSOR
LPC
CONTROL MODULE
HIGH SPEED
SOLENOID
INDUCED DRAFT
BLOWER RELAY
Ladder Diagram
Manual
Page
Line 2
Terminal
Block
L2
4085-157
2100-587J
51 of 59