31
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Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
WIRING DIAGRAMS
BC
CC1
CC2
ECON
XS
(CLASS2)
BK
DA
BCS
OAT
ES
PS
C
S
TB1
T
1
24VAC
CFS
RSS
LDS
CO2
T
2
T
3
T
4
T
5
LPS1
HPS2
HPS1
LPS2
BL/PK
BL/PK
YL/PK
YL/PK
PK
BK
BK
GND
24 VAC
(PWR)
OAH
VOUT (DC)
GND
24VAC
(COM)
24 VAC
(PWR)
VOUT (DC)
VOUT (DC)
24 VAC
(PWR)
IAH
GND
BI8
BI5
12
11
10
1
COM3-8
RLY8
BI1
BI2
BI3
BI4
BI7
BR
RD
COM3-8
RLY7
RLY6
RLY5
RLY4
RLY3
COM1
PU
(OAT)
(DFT)
(CFS)
(EMER)
(FAN PROV)
(HEAT 2)
(HEAT 1)
BI6 (SHED)
RLY1
RLY2
COM2
(24V IN)
(ECON PWR)
(EXF)
(ALRM)
(ECON DMPR)
(OAH)
(ISOL GND)
(CO2)
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
DDC (CLASS2)
(ECON FB)
C
(CLASS2)
TB2
DAT
(COMP2 OUT)
(COMP1 OUT)
(COMP1 IN)
(COMP2 IN)
YL
YL
4
2
1
6
5
3
9
8
7
HTR PLF2
WH
BR
6
5
4
3
2
1
AO1
AO2
AO3
AO4
GND
GND
AG
SPCTEMP
TEMP
GND
STPT OFFSET
BK
PU
RD
BK
PU
BK
BK
WH
WH
PK
WH
BR
GR
GR
BR
BL
WH
8
7
6
5
4
3
2
1
9
AI3
AI8
AI7
AI6
AI5
AI4
AI1
AI2
AGND
AGND
10
WH
WH
PLF
WH
WH
BL
4
5
-t°
3
BAC NET
3
T-
2
1
(BAC
NET)
R+
SH
RD
BL
BL
CONTROL WIRING DIAGRAM
DCC(180-240)****B
DDC
(SPC TMP)
(SUPPLY AIR TMP)
(SPC HUM)
(COMP PRESS 1)
(BLOWER STAGE 1)
(COMP PRESS 2)
(SPC SLIDE ADJ)
(RMT STRT/STP)
-t°
0140L05762-A
NOTES:
1. REPLACEMENT WIRE MUST BE SAME SIZE AND TYPE OF INSULATION AS ORIGINAL (AT LEAST 105° C). USE COPPER CONDUCTORS ONLY.
USE N.E.C. CLASS 2 WIRE FOR ALL LOW VOLTAGE FIELD CONNECTIONS.
IF OPTIONAL SMOKE DETECTOR IS INSTALLED, REMOVE RED JUMPER WIRE CONNECTIONS TB1-XS TO TB1-ES.
DISCHARGE AIR TEMPERATURE SENSOR SHIPPED WITH UNIT IN CONTROL BOX.INSTALL AND CONNECT PER THE ATTACHED INSTRUCTIONS/WIRING DIAGRAM.
IF OPTIONAL ECONOMIZER IS INSTALLED, CONNECT ECON PLF TO ECONOMIZER. ECONOMIZER PLUG LOCATED IN THE RETURN AIR COMPARTMENT.
IF OPTIONAL ELECTRIC HEAT IS INSTALLED, CONNECT HTR PLF2 TO ACCESSORY HEAT PLUG IN HEAT COMPARTMENT.
SEE POWER DIAGRAM FOR CONTROL TRANSFORMER (TR1) HIGH VOLTAGE CONNECTIONS.
2
3
4
5
PU
BR
BL
BL
RD
GR
SMK/EMG
TR1
PU
YL
PU
BL/PK
BL/PK
YL
PK
YL/PK
PK
YL/PK
YL
PK
YL
PU
BL
RD
GR
24V
RD
LINE VOLTAGE
PK
PK
PK
PK
PK
YL BK
YL
PK
PU
PK
PK
RD
BK
GR
BL
YL
PU
BL
BL
YL
BL
BL
BK
BL
BL
4
2
1
6
5
3
EXF CNTL RLY
TWISTED
PAIR
GRD
10VDC
ALRM CNTL RLY
GRD
10VDC
BR
RD
WH
RD
RD
BR
GR
GR
GR
GR
BK
BK
PU
PU
PU
PU
PU
PU
PU
BK
BK
YL
YL
PU
PU
PU
PU
YL
PK
PK
PK
PK
BL
BL
BL
BL
BL
BL
BL
2
2
RD
RD
RD
GR
RD
RD
PU
RD
BK
RD
BK
BR
BR
BR
GR
BL
6
6
PK
BL
BL
BL
GND
24VAC
1
2
PK
PK
PK
DCC180*/ DCC240* 208-230, 460, 575 / 3 / 60 1 SPEED