Daikin DCH048 Series Service Instructions Manual page 138

UNIT WIRING DIAGRAMS
TB1
C
S1
S2
FIELD
CONTROL
WIRING YI
Y2
G
W1
W2
R
CLASS 2
THERMOSTAT WIRING
2 STAGE COOLING
WH WH
W
GR GR
G
RD RD
R
YL YL
Y1
PK PK
Y2
BL BL
C
OR OR
O
TB1 TB1
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
BL
PK
PK
PM
L1 L2 L3
BL
BL
PK
RD
RD
PK
BK
YL
TB3
PU
GR
WH
BR
BR
RD
W W
G G
R R
Y1 Y1
Y2 Y2
C C
O O
STAT
YL
PU
PU
YL
BL
GR
RD
BL
BR
WH
PU
RD
RD
RD
GR
PU
RD
GR
NOTES:
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.
CONTROLS DIAGRAM
DCC300, 1 SPD EM
SUPPLY (LINE)
VOLTAGE
TR1 GR
RD BL
24 VAC
SMOKE DETECTOR
SENSOR 1
RD
16
AUX A
6
SENSOR 2
17
8
AUX B
18
24V AC/DC
7
24V AC/DC
PK
CCR1
1 3
YL
BL
HPS1
4
RD
2 (NO) YL YL
YL YL
CCR2
BL
1 3
PU
HPS2
4
2 (NO)
PU PU PU PU
RD
PLM 3 PLF 3
BK GR
1 1
YL YL
2 2
PU
PU
3 3
ECON PLM
GRD
1
2
3
ECON ECON SHRT 4
PLF PLM
2
5
YL
1 1
6
PU
2 2
7
3 3
8
4 4
9
5 5
6 6
7 7
8 8
9 9
HEAT PLF
1
2
3
4
5
6
7
8
9
EBTDR
BL
XFMR-R
XFMR-C
3A
C
R
SPEEDUP
G
M1
M2
(NC)
COM
(NO)
DCC300XXX6BXXX**
TB3
BL
Y Y
Y Y
SEN1
R R
B B
Y Y
Y Y
SEN2
R R
B B
BL
10
PK
9
CC1
BL
LPS1
YL
BL
YL
YL
BL
CMC1
CC2
BL
LPS2
PU
BL
PU
PU
BL
CMC2
BK BL
BC1
ECON MODULE
1 MAT 1
MAS
2
AUX2-1 MAT 2
3 OCC
4 OAT 1
E-GND
OAT 2
1 EXH1
2
AUX1-O S-BUS 1
OD ENTH
S-BUS 2
1 Y2-I
2 1
Y2-O IAQ 2-10
3 Y1-I 2
IAQ COM
4 Y1-O IAQ 24V 3
ECON
1 C
ACT COM 1
ACT
2 R ACT 24V 2
3
4
0140L06189-A
43