21
Versa Drawer Refrigeration Units
Versa Drawer 4-Drawer Wiring Diagram (2 of 2)
SP2
J34
SOLENOID
SOLENOID
H
O
T
GAS
SOLENOID
SOLENOID
H
O
T
GAS
12
16
H
O
T
GAS
SOLENOID
SOLENOID
REFG
.
REFG
.
14
18
33
H
O
T
GAS
SOLENOID
SOLENOID
REFG
.
C
O
N
D
. F
AN
1
MTR
REFG
.
11
15
BOX
13
17
COND 2
COIL
COND 1
BOX
COIL
J9
COIL
COIL
D3
BOX
J5
D1
J6
BOX
1
J1
J11
J2
BOX
J10
D4
J36
COIL
BOX
J7
D2
J8
COIL
J35
J3
J4
32
MTR
25
FOR C
OMP
1
C
OMPRESSOR 1
MTR
T
R
ANSDUCER
PRESSURE
NSK
C
O
ND
. OUT
1
TEM
P.
PROBE
C
O
N
D
. IN 1
C
O
N
D
. F
AN
2
TEM
P.
PROBE
26
WHITE (
VOU
T
)
BL
A
CK (
C
OM)
RED (
VDC
IN)
WHITE (
VOU
T
)
BL
A
CK (
C
OM)
RED (
VDC
IN)
MTR
C
OMPRESSOR 2
FOR
CO
M
P. 2
PRESSURE
T
R
ANSDUCER
NSK
TEM
P.
PROBE
TEM
P.
PROBE
C
O
N
D
. OUT
2
C
O
N
D
. IN 2
D3 & D4 VALVES
AC HOT
1
SP1
1
COMP 2
COMP 1
COND FAN
1
2
J24
J11
J26
J32
J25
J33
D1 & D2 VALVES
1
1
J30
J28
J27
1
J19
J18
1
J23
J29
J22
4
1
1
J31
1
DRA
WER 2
DRA
WER 1
DRA
WER 4
DRA
WER 3
I/O BOARD
BOARD CONNECTOR MAP
COMMUNICATION CABLE
TO DISPLAY BOARD
I/O TO DISP.
1 TO 1
2 TO 2
3 TO 3
PREFER SHIELDED
TWISTED PAIR.
1 AND 2 TWISTED,
3 SHIELD.
POWER TO
DISPLAY BOARD
1 – +8V
2 – GROUND
I/O TO DISP.
1 TO 1
2 TO 2
TEMPERATURE SENSORS
SUCTION
PRESSURE
TRANSDUCER
1 – +5V
2 – SIGNAL
3 – COMMON
85–265 VAC
50/60 HZ
CONTROL POWER
J25–AC HOT
FOR ALL AC LOADS
J28
1 – D3 REFG. SOLENOID
2 – D3 HOT GAS SOLENOID
3 – D4 REFG. SOLENOID
4 – D4 HOT GAS SOLENOID
J27
1 – D1 REFG. SOLENOID
2 – D1 HOT GAS SOLENOID
3 – D2 REFG. SOLENOID
4 – D2 HOT GAS SOLENOID
J29
1 – D1 FRAME HEATER
2 – NC
3 – D2 FRAME HEATER
1 – COMMON FOR D1 AND D2 DRW SWITCHES
2 – D1 SWITCH
3 – D2 SWITCH
4 – COMMON FOR D3 AND D4 DOOR SWITCHES
5 – D3 SWITCH
6 – D4 SWITCH
1 – +12V FOR D1 AND D2 FANS
2 – D1 FANS RETURN
3 – D2 FANS RETURN
4 – +12V FOR D3 AND D4 FANS
5 – D3 FANS RETURN
6 – D4 FANS RETURN
J30
1 – D3 FRAME HEATER
2 – NC
3 – D4 FRAME HEATER