User's Manual
701379-UIM-C-0712
Johnson Controls Unitary Products 39
SECTION XII: WIRING DIAGRAM
FIGURE 43: Wiring Diagram
1600/2000 CFM
MODELS ONLY
C
PS3
NO
ROS1
HI
C
M
GAS VALVE
CONTROLS
TO AIR CONDITIONER
ROOM THERMOSTAT
2-STAGE COOLING
2-STAGE HEATING
COMMON T'STAT CONNECTION
Y2
Y
W1
W
R
C
G
Y1
W2 W2
Y1
G
C
R
W
W1
Y
Y2
HIGH
LOW
IDM
EAC
HUMIDIFIER
BLOWER
MOTOR
POWER SUPPLY 115-1-60 SEE NOTE 1
GND
DS
C
NO
HSI
N.O.SW DOOR SWITCH
C
PS2
NO
GND
COM115V
24V SEC
PRI
1T (40VA)
CONDENSATE
2ND STAGE
LS
ROS2
DS -
ROS -
XFMR -
HSI -
PF -
PS1 -
PS2 -
PS3 -
643453-UWD-B-0212
Legend
1. If any of the original wire as supplied with the furnace must be replaced, it must
be replaced with wiring material having a temperature rating of at least
221 degrees F (105 degrees C ).
PF
Wiring Diagram - 96% Two-Stage ECM Furnace
IDM -
EAC -
LS -
HUM -
DS -
ROS -
XFMR -
HSI -
PF -
PS1 -
PS2 -
PS3 -
Legende
IDM -
EAC -
LS -
HUM -
NO
PS1
C
1ST STAGE
1600/2000 CFM
MODELS ONLY
WHT
PS1
C
NO
RED/BLK
ROS1
BRN
RED/WHT
CNO
GRY
3
2
1
WHT
RED
BLK
GRN
IDM
GAS VALVE
BLK
WHT
BLK
ORN
PS2
M
C
HI
YEL
WHT
RED/GRN
RED
FLAME SENSOR
BRN
ORG/BLK
C
PS3
NO
LS
PRP
BLU
GRY
BRN
WHT
RED
WHT
WHT
NO
C
DOOR N.O.SW
115VAC LINE
24V SEC
LOAD
115V PRI
LINE
115VAC NEUT.
ROS2
BLK
P3/S3
2
1
BLK
BLK
WHT
WHT
HS1
RED
PF
BRN
BLK
WHT
BLOWER
MOTOR
GND
GRN
(16) YEL/BLK
(15) GRN
(9) ORG
(10) BLK
(11) BRN
(12) RED
(13) WHT
(14) YEL
(1) BLK
(2) WHT
(3) BLK
(4) RED
(5) WHT
(6) YEL
(7) PRP
(8) BLK
GND
GND
HUM
EAC
EAC
XFMR
HUM
FURNACE CONTROL
5
4
3
2
L1
1
4
1
2
3
6
5
9
8
11
10
7
12
C
GR
W1
Y/Y2
Y1
W2
P9/S9
X/L
DHUM
O
NEUTRALS
1. Si l'un des fils d'origine fourni avec ce four doit filage doit être remplacé, il doit être
remplacé avec le fil ayant un degré de température d'au moins
221 degrés F (105 degrés C ).
Door Switch
Rollout switch
Transformer
Hot surface ignitor
Power factor choke
Pressure switch, 1st stage
Pressure switch, 2nd stage
Pressure switch, condensate
Inducer motor
Electronic air cleaner
Limit switch
Humidifier
Commutateur de porte
Commutateur de roulement
Transformeur
Ignition de surface chaud
Transformeur de facteur de puissance
Commutateur de pression, premier stage
Commutateur de pression, deuxieme stage
Commutateur de pression, condensation
D'induct moteur
Filtre electrique
Commutateur de limite
Humidificateur
THE 40,000 INPUT
FURNACE HAS ONLY
ONE ROLLOUT SWITCH