Bard WG Series, Installation Instructions Manual

Page: 59 / 59

Manual 2100-587J
Page
59 of 59
WG3S2-C, WG4S2-C, WG5S2-C 460/60/3
if Option Not
A
Wires Connect
Used
4085-393
Indoor Blower Motor
14 12 10 6 2 13 3 1
16 Pin Plug for
15
W1
C
HEAT UNUSED
G
High Voltage
Optional
Low Voltage
Factory
COMPRESSOR
Ladder Diagram
Lo
w
Vo
ltage
Te
rm.
Bl
ock
R
CONTROL MODULE
COMPRESSOR
CONTACTOR
INDUCED DRAFT
FURNACE
CONTROL
LPC
LPC
C
ALR
Y
HPC
CC
Y1
2
R
FURNACE CONTROL BOARD
K3 K4
K4
K2
COOL D1
LOW PRESSURE
HIGH PRESSURE
208
24VAC
240
COM
Transformer
Use for 208V Operation
6
BOARD
L1
VALVE
GAS
1
SWITCH
PRESSURE
K1 K1
K4
K1
K2
K3
12 11
CONTROL
3 8 10 7 9 5 4
2
W2
ROLLOUT
FLAME PRIM.
CONTROL
LIMIT
2
BLOWER RELAY
Y2
INDUCED DRAFT
SOLENOID
HIGH SPEED
Power Source
4 5 3
L1
Compressor Contactor
L2
L3
L2
L3
L1
C NC
L2
L1
BLOWER MOTOR
L3
460-60-3
4
Compressor
Fan Motor
5 Pin Plug for Indoor Blower Motor
Crankcase Heater
Aux.
L1 L2
A
L3
Outdoor
Capacitor
Control (OPT.)
L3 L2 L1
C Yo Y
Phase Monitor
Low Ambient
A
INDUCED DRAFT
BLOWER RELAY
Transformer
L2 L2 L2
Fuse
Fuse