28
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.
WIRING DIAGRAMS
DCC300* 208-230, 460, 575 / 3 / 60 2 SPEED
0140L04764-A
3A
13
42
CC1
CMC1
CC2
CMC2
1
2
3
4
1
2
1
2
3
4
1
2
AUX2-I
OCC
E-GND
EXH1
AUX1-O
Y2-I
Y2-O
Y1-I
C
R
Y1-O
1
2
MAT
MAT
1
2
OAT
OAT
1
2
S-BUS
S-BUS
1
2
3
1
2
3
4
IAQ 2-10
IAQ COM
IAQ 24V
ACT COM
ACT 24V
GRD
LUG
MAS
OD ENTH
ECON
ACT
ECON PLM
ECON MODULE
ECON
PLF
ECON SHRT
PLM
PLM 3
PLF 3
CCR1
TB3
PU
BL
BL
PU
YL
GR
BL
TB3
BL
SUPPLY (LINE)
VOLTAGE
24 VAC
TR1
2
2
CONTROLS DIAGRAM
DCC300***(3,4,7) V
2SPD EM
3
3
GR
EBTDR
(NO)
(NC)
COM
G
R
XFMR-R
XFMR-C
C
SPEEDU P
M1
M2
7
6
BL
HPS1
LPS1
HPS2 LPS2
PU
YL
PU
YL
PU
YL
PU
56
13
42
CCR2
5
6
1
2
3
FM1
1
2
1
2
1
2
3
FM2
1
2
1
2
-t°
-t°
1
2
3
1
2
1
2
-t°
13
42
LAR
56
LAM2
T1
T2
LAT
T6
LA CMC
1
2
3
1
2
1
2
-t°
LAM1
13
42
CMR
56
BK
BK
BK
BK
BL
BL
OR
BK
YL
BK
RD
BL
BL
WH
WH
WH
BL
GY
WH
WH
OR
OR
WH
WH
BL
BR
OR
OR
WH
WH
RD
RD
RD
RD
BL
BK
BL
BR
1
23
1
23
R
CS1
S2
YI
Y2
G
W1 W2
TB1
FIELD
CONTROL
WIRING
CLASS 2
4
1
2
3
4
5
67
8
9
HEAT PLF
BR
WH
BL
GR
RD PU
PU
YL
YL
BK
5
BL
RD
RD
BL
YL
BL
RD
YL
BL
BL
YL
YL
PU
PU
BL
OR
PU
BL
GR
GR
RD
RD
RD
RD
GY
YL
YL
PU
YL
PU
PU
GR
PU
PU
1. REPLACEMENT WIRE MUST BE SAME SIZE AND TYPE OF
INSULATION AS ORIGINAL (USE COPPER CONDUCTORS ONLY).
2. IF OPTIONAL ECONOMIZER IS INSTALLED, REMOVE ECON SHRT
PLM AND CONNECT ECON PLM TO ECON PLF.
3. TB3 LOW VOLTAGE TERMINAL BLOCK.4 TERMINALS FOR 24VAC
PWR (RD,BK,BR WIRE) AND 6 TERMINALS FOR 24VAC COM (BL WIRE).
4. CONNECTIONS SHOWN ARE FOR 1-STAGE HEAT OPERATION.
WHEN 2-STAGE OPERATION IS REQUIRED REMOVE W H JUMPER WIRE
CONNECTING W2 TO W1 ON TB1.
5. IF OPTIONAL SMOKE DETECTOR IS INSTALLED, REMOVE RD JUMPER
WIRE CONNECTING S1 TO S2 ON TB1 AND MAKE THE FOLLOWING WIRE
CONNECTIONS: RD WIRE TO S1,BR WIRE TO TB3 (24V/PWR),BL WIRE
TO TB3 (24V/COM).
NOTES:
BL
BL
BL
BR
WH
PU
RD
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
YL
WH
RD
1
2
3
4
5
6
7
8
9
RD
BL
RD
GY
BL
YLPU RD
BRWH
GR
RD RD
6. EBTDR RELAY ENERGIZES 7 SEC AFTER 24VAC IS APPLIED TO "G". THE RELAY DE-ENERGIZES
65 SEC AFTER 24VAC IS REMOVED FROM "G".
7. EBDTR RELAY DELAYS WILL DECREASE TO APPROX 3-5 SEC
WHEN "SPEEDUP" IS SHORTED TO "C".
8. IF LOW AMBIENT KIT IS INSTALLED, CONNECT GY WIRE FROM LAM2-3
TO CMR-4. ALSO CONNECT BL COM WIRES FROM LAT-T6 AND LAM2 -2
TO TB3 (24V COM).
RD
OR
8
BL
GY
RD
BL
BL
8
BL
ECON OPTION
LOW AMB
OPTION
BL
PU
PU
BK
RD
RD
RD
GY
GY
YL
RD
RD
BL
GR
GR
GR
PU
OR
BK
YL
RD
BL
BR GR
RD RD PU
YL
YL
PU
BR
WH
GR RD
RD RD
BC2
LOW SPEED
BC1
HIGH SPEED
BL
BL
BR2
BL
YLPU
WH
YL
GR
PU
BL
BL
13
42
56
BR1
13
42
56
BK
BK
GR
BL
BR
BR
BL
BL
YL
BR
BR
BK
GR
GR
BL
YL
YL
YL
BL
GY
BL
OR
WH
WH
WH
YL
YL
BL
YL
OR
BK
PU
BL
BL
BL
YL
BK
BL
BL
BL
BL
BL
BL
WH
WH
WH
BL
WH
WH
WH
WH
WH
BL
BK
THERMOSTAT WIRING
Y1
TB1
W
G
W
PK
RD
Y1
R
OR
BL
GR
C
2 STAGECOOLING
WH
O
O
Y2
C
G
R
YL
PK
RD
OR
BR
STAT
Y2
SEN2
SEN1
7
18
8
17
6
16
B
R
Y
Y
AUX B
AUX A
10
9
B
R
Y
Y
SENSOR 1
SENSOR 2
B
R
Y
Y
B
R
Y
Y
SMOKE DETECTOR
SMK DET
OPTION
24V AC/DC
PK
BL
5
PLF
PLM
PLF
PLM
PLF
PLM
PLF
PLM
9. LAT ON/OFF TIME SETTINGS :
ON -TIME (LEFT COLUMN) : 2,8 = ON
OFF -TIME (RIGHT COLUMN) : 8 = ON
ALL OTHER DIP SWITCHES = OFF
9
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