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27
Fig. 21 — 15-v ECM Motor with DDC Ready Controls and DX Cooling
24
VA
C
GRN
RED/501
TRAN1
BRN
/5
0
4
WHT
/1
1
0
WHT
SW
1
B
LK/
101
WHT/110
B
LK/
102
FU1
USE COPPER SUPPLY WIRES.
11
5 V
L1
N
GND
BLK
/10
0
BL
K
DISC1
GRN
BL
K/1
0
9
120
VAC
BLK
/10
9
WHT/111
WH
T/111
LO
W
ME
D
HIGH
MA
X
24
Va
c
SP
EED BO
ARD
BL
U/
EC
9
GRN
WH
T
BLK
ORN
/EC2
3 W
IR
E
POW
E
R
CABL
E
EC
F
A
N
MOTOR
1
3
12
2
9
14
5
4
3
2
1
16
PIN
RECEP
T
A
CLE
ON MOTOR
5 PIN
RECEP
T
A
CLE
ON MOTOR
11
5
BRN
SW
2
RED/EC12
RE
D/EC
12
YE
L
/E
C
5
SE
E
N
O
T
E
3
FR1
2
4
RED/
501
3
1
FR1
2
1
5/
K
L
B
4
0
5/
N
R
B
BRN/51
3
RED/514
CBC1
4
7
2
SEE CONTROL DIAG
RAM
FOR HARNESS WIRING
BRN/
505
BRN/EC1
RED/511
RED/502
RED/503
MAX
LO
W
HI
GH
24
DX1
BL
U/
50
8
BL
U/
50
7
FIELD CONNECTED
TO
REM
OTE COMPRESSO
R/
CONDEN
SER UNIT
3
1
DX1
BL
U/51
7
3
BR
N/
50
6
LLR
3
1
2
8
9
ORN/51
8
GR
A/
5
1
9
LEGEND
CB
C
—
C
ontrol Box
Connection
DD
C
—
D
ire
ct D
igital Controls
DI
S
C
—
D
iscon
nect Sw
itch
DX
—
D
ire
ct Expansion
EC
—
Elect
ronically Co
mmutated
ECM
—
Elect
ronically Co
mmutated Motor
ESP
—
Externa
l Static
Pres
sure
FR
—
F
an Relay
FU
—
Fu
s
e
GND
—
Grou
nd
LL
R
—
D
X
L
o
w Limit Switch
LL
T
—
Water Coil Low
Limit T
hermostat
SW
—
Switch
T
RAN
—
T
ransforme
r
H
a
rness C
onnection
C
onnection Point Splice
Splice T
erminal
Connection
C
omponent T
ie Point
Optional Wiring
Fa
c
tor
y W
ir
in
g
C
hassis Groun
d
Earth Ground
N
O
TES:
1.
Ma
ke electrical insta
llatio
n in
accordance with job diagram, a
nd in
complia
nce w
ith n
ationa
l and
local electrical codes.
2.
L
ow limit thermo
stat (LLT) is inst
a
lled on all u
nits with water coils.
3.
Wire
YE
L
/E
C
5 factory connected
to LOW. Positions MED,
HIGH, and
MAX are for f
ield use with increased
E
SP.