21
CAV 42
1NART
405/NRB
01
1
/THW
1WS
1
0
1
/K
LB
011
/
THW
2
0
1
/K
LB
1
U
F
SERIW YLPPUS REPPOC ESU
V 511
1L
N
D
NG
001/KLB
KLB
1CSID
N
R
G
9
01
/
K
LB
CAV021
901/KLB
111/THW
11
1
/TH
W
WOL
DEM
HGIH
XAM
caV4
2
DRAOB DEEPS
9C
E/ULB
N
R
G
THW
K
L
B
2C
E
/N
R
O
ERIW 3
R
E
W
O
P
ELBAC
ECM
1
3
21
2
9
4
1
5
4
3
2
1
N
IP 61
ELCATPE
C
ER
ROTOM NO
N
IP
5
ELCATPECER
ROT
OM
N
O
1
1
5
NRB
21C
E/
DER
5CE/
LE
Y
3 ETON EES
315/NRB
115/DER
1CBC
1
3
115/DER
OTUA
FFO
T
NOC
2
W
S
415
/LE
Y
415/LEY
515/THW
61
5/
OIV
4
5
6
515/THW
615/O
I
V
81
5
/NRO
715/ULB
7
8
9
CE
/
UL
B
2CE/NRO
SEE CONTROL DIAGRAM FOR HARNESS WIRING
LEGEND
DISC — Disconnect Switch
ECM — Electronically Commutated Motor
ESP — External Static Pressure
FU — Fuse
GND — Ground
LLT — Water Coil Low Limit Thermostat
SW — Switch
TRAN — Transformer
Harness Connection
Connection Point Splice
Splice Terminal Connection
Component Tie Point
Optional Wiring
Factory Wiring
Chassis Ground
Earth Ground
Fig. 8A — Unit Ventilator Wiring with CCN Controls — Control Box (115 vac)
NOTES:
1. Make electrical installation in accordance with job diagram, and in com-
pliance with national and local electrical codes.
2. Low limit thermostat (LLT) is installed on all units with water coils.
3. Wire YEL/EC5 factory connected to LOW. Positions MED, HIGH, MAX
are for field use with increased ESP.
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