Johnson Controls YZ - Page 11

Figure 1: Elementary wiring diagram
LD27180
035-26662-000
REV E, SHT. 1
1
2
1
70
7
1
19
20
1
2
3
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
J1-
1
24
25
26
27
28
29
30
33
34
35
36
37
2
2
81
50
4
5
6
7
8
9
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
1
1
12
13
9
1
95
11
38
71
1
31
32
I/O
BOARD
031-03631
CONT'D.
REMOTE LCHLT SETPOINT
OFFSET (PWM SIGNAL)
REMOTE CURRENT LIMIT
SETPOINT (PWM SIGNAL)
REMOTE/LOCAL
CYCLING DEVICES
CHILLED LIQUID FLOW
SWITCH (OPTIONAL)
MULTI-UNIT
SEQUENCE
CYCLING
1
31
AUXILIARY
SAFETY
SHUTDOWN
REMOTE
RUN/STOP
TO
MICRO
BOARD
J19
R3
8
30
CONTROL VOLTAGE
82
R2
TB1
TB15
TB14
TB3
TB2
CONDENSER LIQUID
FLOW SWITCH
(OPTIONAL)
21
4
22
21
SAFETY STOP
1SW
11
12
28
TB13
MBC FAULT
(OPEN ON FAULT)
162
18
MBC LEVITATED
CL1
5
11Unit Wiring and Field Connections for YZ Centrifugal Chiller with Magnetic Bearing Controller