987158-UIM-B-1013
32
Johnson Controls Unitary Products
SECTION XI: WIRING DIAGRAM
FIGURE 32:
Wiring Diagram
Wiring Diagram 80+% Modulating Furnace With ECM Motor
GAS VALVE
TO AIR CONDITIONER
CONTROLS
ROOM
THERMOSTAT
COMMON T'STAT CONNECTION
Y2
Y
R
C
G
Y1
W
W
Y1
G
C
R
Y
Y2
VENTOR
MOTOR
EAC
HUMIDIFIER
BLOWER
MOTOR
POWER SUPPLY 115-1-60 SEE NOTE 1
GND
(EN TERRE)
C
NO
HSI
NO
PS
C
GRD
COM
120V
24V SEC
PRI
XFMR (40VA)
LS
ROS1
ROS2
BLK
24V
120V
COM
GRN
WHT
GAS
VALVE
WHT
WHT
2
1
GRN
BLK
BLK
WHT
INTEGRATED
CONTROL
BOARD
RED/GRN
RED/GRN
RED
BLU
BRN
TAN
TAN
GRY
GRY
PRP
HSI
VENTOR
MOTOR
FLAME
SENSOR
LS
NO
C
DOOR SWITCH
115VAC LINE
115VAC NEUT.
ID PLUG
1
2
40 VA
XFMR
HUM
EAC
ORG
ORG
NO
C
PS
ID Plugs
LO COMP
HI COMP
O
DHUM
Y1
Y/Y2
W
R
G
C
120VAC
NEUTRAL
GROUND
120VAC
XFORMER
NEUTRAL
XFORMER
MOTOR
MOTOR
FUSE
HUM
NEUTRAL
NEUTRAL
NEUTRAL
NEUTRAL
HOT
EAC
HOT
HOT
HOT
IGNITER
INDUCER
EAC
FLAME ROD
24VAC
GND
GAS
PRIM LIMIT
AUX LIMIT
998911-UWD-A-0213
EXT
PRESSURE
SENSOR
RED/WHT
BLK/WHT
GRN/WHT
PRESSURE
SENSOR
GRN
BLK
RED
120VAC
LINE
LINE
NEUTRAL
THERMISTER
BLK
BLK
1
2
RED/BLK
RED/BLK
TEMPERATURE
SENSOR
MOTOR CONNECTOR
(1)GRN
(8)GRN
(3)GRN
(12)BRN
(10)BLK
(9)BRN
(15)BLU/WHT
(16)YEL/BLK
BLK
WHT
BLK
GRN
PF (NOT USED ON 1/2 HP MOTORS)
BLK
BLK
BLK
PF (NOT USED ON 1/2 HP MOTORS)
WHT
BLK
AIR SW
GND
TX
RX
HOT
HOT
24VAC
OUT
GND
VCC
1
2
3
4
5
6
1
3
4
6
7
8
2
5
ROS1
ROS2
RED
RED
YEL
GRN
RED
BLU/WHT
ORG
TH
RXD
TXD
TR
MV TH
1 2 3
3 2 1
1
2
3
4
5
Power Off
Normal Operation
Low flame sense current
Normal Operation with call for cooling
Normal Operation with call for heat
Normal Operation, burner on at end of heat cycle
Reduced Airflow problem
High altitude installation OR vent, OR
termination problem
Normal Operation with call for heat pump heating
Control Failure
Flame present with gas off
Check pressure switch wiring
Vent OR termination problem
Airflow problem OR open fuse
Flame Rollout
Check gas valve wiring
Failed to light burners
Loss of flame during call for heat
Hot/Neutral reversed OR poor ground/neutral
Gas valve shorted "ON"
Check blower motor/wiring
ID plug missing or not connected properly
Flashes
Diagnostic Fault Codes
Fault Condition
None
1 Slow Green
Rapid Amber
1 Amber
2 Amber
3 Amber
4 Amber
5 Amber
6 Amber
Steady on Red
1 Red
2 Red
3 Red
4 Red
5 Red
6 Red
7 Red
8 Red
9 Red
10 Red
11 Red
12 Red
SERVICING THIS UNIT
OPEN ALL DISCONNECTS BEFORE
CAUTION
PRECAUTION
OUVREZ LES DISJONCTEURS AVANT
DE PROCEDER AVEC LE SERVICE
DS -
ROS1 -
ROS2 -
XFMR -
HSI -
PF-
PS -
EAC -
LS -
HUM -
Legend
Door Switch
Roll Out Switch
Roll Out Switch
Transformer
Hot Surface igniter
Power Factor choke
Pressure Switch
Electronic Air Cleaner
Limit switch
Humidifier
Factory Wiring and Devices
Field Wiring and Devices
DS -
ROS1 -
ROS2 -
XFMR -
HSI -
PF -
PS -
EAC-
LS -
HUM -
Legende
Commutateur de porte
Commutateur de roulement
Commutateur de roulement
Transformeur
Ignition de surface chaud
Transformeur de facteur
de puissance
Commutateur de pression
Filtre électrique
Commutateur de limite
Humidificateur
Filage de l'usine et appareils
Filage de chantier et appareils
NOTES:
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 ).
2. Seulement des marettes pour fil de cuivre.
NOTES:
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).
2. Connectors suitable for copper conductors only.
Fault Code Retrieval
Notice - Only a qualified service technician should use this feature.
Fault code retrieval functions will work only if there are no active thermostat signals.
To retrieve fault codes, push and release ERROR button on control board. The LED will flash the last five error
codes, beginning with the most recent. If there are no fault codes in memory, the LED will give two green flashes.
To clear thefault code memory, push and hold the ERROR button for at least five seconds.
The LED will give three green flashes when the memory has been cleared.
Note to Servicers
Unlike conventional systems, the wall thermostat does not simply
turn this furnace off and on. The furnace control calculates the
demand and THE FURNACE BURNERS MAY CONTINUE TO
FIRE DURING PART OF THE THERMOSTAT "OFF" CYCLE.
Refer to the furnace instructions for further information.
Model
Colors
60A12
BRN/WHT
80B12
RED/WHT
80C16
BLU/WHT
100C16
BLK/WHT
100C20
GRN/WHT
120C20
PUR/WHT
