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WIRING DIAGRAM# 0962I-4241A.Rev.J, VFD-CONTROL KIT, Sheet 1 of 2 08/15/18 DWN_____ CHK_____
SFR
5
9
Eaton
VFD
(DC1)
SFM
2
T1
T2
T3
L3
L2
L1
MSP
BK‐&
BL‐&
R‐&
VFD
L2
W
L3
U
L1
V
GR
G‐&
BK‐&
BL‐&
R‐&
G
C
SFR
14
13
SEE CONDENSER UNIT
24V CONTROL
TERMINAL BOARD
O
O
SUPPLY FAN RELAY
MOTOR STARTER PROTECTION
VARIABLE FREQUENCY DRIVE
SUPPLY FAN MOTOR
SFR
8
12
EXHAUST FAN
INTERLOCK
5
4
3
8
1
PM
PM‐ PHASE/POWER MONITOR
(OPTIONAL)
BK
BL
R
PHASE/POWER MONITOR
3
‐A1
+A1
SEE CONDENSER UNIT
TERMINAL BOARD
Use this wiring diagram when VFD (Variable Frequency Drive) is controlled by the ALC controller or Customer
DDC controller. The Differential Pressure Transmitter should be wire directly to the ALC/DDC Controller. See
condenser unit wiring diagram.
Settings:
Eaton DC1
Parameter
Setting
P-02
30
Minimum Speed
P-03
30
Acceleration
P-04
30
Deceleration
P-05
0
Stop mode
P-08 Set Per Name Plate Motor Current
R
7
6
PM
DS
LWF
1
24V
2
DI1
6
7
AI1
0V
L3
L2
L1
Air Handling Unit
(AHU)
Control Kit
L1
L2
L3
EGB
L1
L2
L3
GRD
DISCONNECT SWITCH (TYPICAL)
EGB
W1
C
W2
Optional Electric Heat
TYPICAL WIRING DIAGRAM FOR SINGLE POINT POWER AIR HANDLING UNIT AND ELECTRIC HEATER
BLOWER MOTOR MINIMUM WIRE SIZE
HP
208/230 VOLT
460 VOLT
1/2 THRU 3 14 AWG
14 AWG
5
12 AWG
14 AWG
7-1/2
10 AWG
14 AWG
10
8 AWG
12 AWG
15 6AWG 12AWG
1
EGB
L1
L2
L3
GRD
OPTIONAL
DISCONNECT
SWITCH
(TYPICAL)
EGB
EFM
2
T1
T2
T3
L3
L2
L1
MSP
BK‐&
BL‐&
R‐&
VFD
L2/N
W
U
L1
V
GR
G‐&
BK‐&
BL‐&
L1
L2
MOTOR STARTER PROTECTION
VARIABLE FREQUENCY DRIVE
EXHAUST FAN MOTOR
1
BL‐&
FIELD POWER SUPPLY SINGLE
PHASE WITH SF MOTOR 3 PHASE
1
P-14
101
Password
P-15
4
DI Config Select
P-35
200.0%
AI1 Gain
P-39
50.0%
AI1 Offset
All Other Setting Should be left at the default
setting. Consult the DC1 Application Manual
Figure 13a: VFD Control Kit Wiring
RC/FC Series Installation, Operation, and Maintenance Manual