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ELECTRICAL SCHEMATIC
Model 3000
Sheet 2 of 2
A
B
C
02
SHT#1 66K
04
-S43
06
TB2-2
TB2-2
08
PRES. 1 FAN 1
-S45
10
TB2-2
PRES. 1 FAN 2
12
-S62
14
TB2-2
REFRIGERANT HI PRES.
16
18
TB2-2
TB2-2
20
22
EVAPORATOR TEMP SENSOR
24
DISCHARGE TEMP SENSOR
26
28
TB2-2
30
32
34
36
TB2-26
38
TB2-26
40
42
TB2-26
44
JUMP
TB2-26
46
TB2-26
48
TB2-26
50
52
54
56
58
TB2-26
60
62
64
66
68
D
E
F
24VAC
-S43.1
TB2-31
31
TEMP. 1 FAN 1
-S45.1
34
TB2-34
TEMP. 1 FAN 2
TB2-36
TB2-2
TB2-2
TB2-PE
-B61
TB10-1
TB10-2
-B62
TB10-3
TB10-4
STD DRAIN
-A51
TB2-2
TB2-3
L
TB2-1
TB2-4
N
PE
OPTIONAL
CLSC DRAIN
-A55
L
N
PE
-K62
-F11
K62X-NO
TB2-19
11
14
43
44
-K62
TB2-26
TB2-37
31
32
-A51
TB2-5
NO
COM
-A55
** JUMPER FOR SINGLE DRAIN APPLICATION
TB2-7
NO
COM
-K61
TB2-8
9
5
-S67
START/STOP
TB2-25
TB2-10
LOCAL REMOTE
TB2-25
TB2-11
OX
TB2-25
TB2-25
TB2-25
-K63
-F12
K63X-NO
TB2-38
11
14
43
44
-K63
TB2-25
TB2-41
31
32
EVAPORATOR OUTLET
SENSOR
G
H
J
-S43.2
31-1
32
TB2-32
TEMP. 1 FAN 3
-S45.2
TB2-35
34-1
35
TEMP. 1 FAN 4
-A60
CONTROL BOARD
W1 LINE
NEUTRAL W2
W37
W3 GND
TB10-1
W4
TB10-2
W5
TB10-3
W6
TB10-4
W7
TB2-3
W27
DRAIN TEST
TB2-4
W26
DRAIN COMMON
W15
COMMON
TB2-19
W8
COMPRESSOR ENERGIZED
TB2-37
W9
HEATER ENERGIZED
TB2-5
W13
DRAIN 1 ALARM
JUMP
TB2-7
W14
DRAIN 2 ALARM
TB2-8
W10
REFRIGERANT HIGH PRESSURE
TB2-9
TB2-9
W11
REFRIGERANT LOW PRESSURE
TB2-10
W31
REMOTE START/STOP
TB2-11
W32 LOCAL/REMOTE SELECTION
W29
W30
W33 COMMON
NO
NC
TB2-38
W12 COMP. ENERGIZED
C
TB2-41
W28 HEATER ENERGIZED
NO
21
NC
TB2-21
W34
PHASE
22
C
TB2-22
W35
CHECK
23
TB2-23
W36
J4
EVAPORATOR
OUTLET RTD
RS-485
RS-232
A
B
Z
Y
J2
J8
USB
K
L
M
N
SHT#1 64K
-K43
TB2-32
TB2-1
FAN CONTACTOR 1
A1
A2
-K45
TB2-35
TB2-1
FAN CONTACTOR 2
A1
A2
-K61
TB2-36
TB2-36
TB2-1
REFRIGERANT HI PRES.
RELAY
A1
A2
TB2-1
TB2-1
TB2-36
W22
TB2-36
W24
-K62
TB2-39
TB2-1
W23
COMPRESSOR CONTACTOR
A1
A2
-K63
TB2-40
TB2-1
W25
COMPRESSOR 2 CONTACTOR
A1
A2
J2
9-PIN RS232
CABLE
UNLOADING
SOLENOID
TB2-12
TB2-1
W38
13
W16
TB2-13
14
ALARM B
W17
TB2-14
MONITORING
15
W18
TB2-15
16
W19
TB2-16
17
ALARM A
W20
TB2-17
COMPRESSOR STOP
18
W21
TB2-18
ETHERNET
P
Q
35
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