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WIRING DIAGRAMS
PCBBL216
PLM
J5
PSS
5
Y
PSG
4
PS VCC
W
3
R
PLI
2
G
NC BTS
C
1
NC BTS
PLO
3A
GV RETURN
TR 24 VAC
TR GND
GV OUTPUT
FLAME ROD (T7)
IDC (20 VDC)
I (PWM) C
I (RPM) F
COOL FAN
HEAT FAN
YL
YL
GND
L1
L2
RD BL GRWH
1
2
3
J3
R C G W Y
PLM
1
2
3
GR
BK RD
RDWH
TO THERMOSTAT
1
COMPONENT LEGEND
ALS
AUXILIARY LIMIT SWITCH
BTS
BURNER TEMPERATURE SWITCH
CC
COMPRESSOR CONTACTOR
CCH
CRANKCASE HEATER
CM
CONDENSER MOTOR
COMP
COMPRESSOR
EM
EVAPORATOR MOTOR
FPS
FREEZE PROTECTION SWITCH
FS
FLAME SENSOR
GND
EQUIPMENT GROUND
GPT
GAS PRESSURE TRANSDUCER
GV
GAS VALVE
NOTES
REPLACEMENT WIRE MUST BE SAME SIZE AND TYPE OF
1
INSULATION AS ORIGINAL (AT LEAST 105° C). USE COPPER
CONDUCTORS ONLY. USE N.E.C. CLASS 2 WIRE FOR ALL
LOW VOLTAGE FIELD CONNECTIONS. USE COPPER
CONDUCTORS FOR UNIT SUPPLY POWER.
FOR 208V SUPPLY POWER, MOVE WIRES FROM THE 240V
2
TAP TO THE 208V TAP.
3
TO CHANGE COOLING SPEED, MOVE YL WIRE TO EITHER
THE T4 (LOW COOL) OR T5 (HIGH COOL) SPEED TAP. TO
CHANGE THE HEATING SPEED, MOVE WH WIRE TO EITHER
THE T2 (LOW HEAT) OR T3 (HIGH HEAT) SPEED TAPS.
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
HIGH VOLTAGE!
Disconnect ALL power before servicing or installing this unit. Multiple
power sources may be present. Failure to do so may cause property
damage, personal injury or death.
HPS
YL
PLM
PLM PLF
1
1
BK
1
1
GPT
2
2
GR
2
2
3
RD
RD
3
3
3
ALS
4
4
RD
PLM PLF
5
5
PU
1
1
PU
BTS
6
PU
PU
PU
6
2
2
PLS
7
7
RD
8
8
YL
BR
GV
9
9
10
10
RD
11
11
BL
12
12
BR
YL
FS
YL
PLM
1
1
BR
2
YL
2
3
3
OR
FAN
GR
YL
WH
L2
DSI
4
5
GR
4
5
1
B
OR
IGN
OR
2
A
RD
BK
WIRE CODE
BK
HPS
HIGH PRESSURE SWITCH
BL
IGN
IGNITOR
BR
PLF
FEMALE PLUG/CONNECTOR
GR
PLM
MALE PLUG/CONNECTOR
GY
PLS
PRIMARY LIMIT SWITCH
OR
RC
RUN CAPACITOR
PK
TON
ON - DELAY TIMER RELAY
PU
TR
TRANSFORMER
RD
VM
VENT MOTOR
TN
WH
YL
FACTORY WIRING
HIGH VOLTAGE
LOW VOLTAGE
OPTIONAL HIGH VOLTAGE
OPTIONAL LOW VOLTAGE
CHASSIS GROUND
FIELD WIRING
HIGH VOLTAGE
LOW VOLTAGE
EARTH GROUND
YL
TON
R1
R2
YL
BL
t = 180s
YL
Y1
Y2
ALS
CC
A1
A2
BL
YL
BL
BL
THE STATUS LIGHT ON THE FURNACE CONTROL MAY BE USED AS A GUIDE TO TROUBLESHOOTING THIS
BLACK
BLUE
BROWN
GREEN
GRAY
ORANGE
PINK
PURPLE
RED
TAN
WHITE
YELLOW
1
THE FAULT CONDITION MUST BE CLEARED FOR 30 SECONDS BEFORE NORMAL OPERATION CAN RESUME.
*PUM3(24-48)***41
LINE
VOLTAGE
208-230V/1PH/60Hz
BK
1
BK
GND
BK
CC
BK
L1
BK
PU
L2
RD
PU
BK BK
PU
PU
BK
BK
RD
BR
YL
OR
BK
BK
PU
PU
BK
BK
RD
WH
YL
WH
GR
BL
BK
RD
PU
PU
BK
WH
BK
BK
240V
COM
2
TR
RD
GR
BL
BL
BL
APPLIANCE. SOME MORE USEFUL STATUS LIGHT CODES ARE BELOW:
A POWER CYCLE WILL ALSO RESET ANY LOCKOUT.
CCH
GR
GR
GR
GR
T1
BK
BK
C
COMP
M
RD
R
1~
T2
S
YL
GR
RC
H
RD
COM
BK
BK
F
PU
M
BR
BR
CM
1~
PU
PU
GR
BR
1
1
BR
YL
YL
2
2
M
OR
3
3
OR
VM
1~
4
BK
BK
4
GR
WH
5
5
WH
PLM
PLF
VM
YL
WH
GR
BL
T1
C
T2
BK
M
L
T3
1~
GR
G
T4
T5
PU
N
3
GR
EM
0140G04631-A
45
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