Customer-supplied Remote Starter Wiring . Trane CVHE-SVX02M-EN, CVHG, CVHF, CVHE
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Customer-supplied Remote Starter Wiring
Table 16.
Standard customer-supplied remote field wiring requirements
Power Supply Wiring to Starter Panel
Starter by Others 3-phase Power Wiring
Starter to Motor Power Wiring
Remote Starter to Chiller Motor Junction Box
Starter to Control Panel 120 Vac Control
Wiring
120 Vac Power Supply (from Starter to
Control Panel)
Power from Control Panel 1Q1
Starter Panel Terminals
See Starter by Others
Schematic
Starters
T1 through T6 Terminals
Starter Panel Terminals
Motor
T1 through T6
Terminals
Unit Control Panel
Terminations
See Starter by Others
Schematic 5X1-1, 5X1-2, 5X1-
20 (Ground)
1X1-1, 1X1-12, 1X1-18
(Ground)
Max Terminal Wire
Size (AWG) (a)
8
5X1-3
1X1-3, 1A23-J6-3
14
Interlock Relay Signal
5X1-4 1A23-J10-1 14
Minimum Circuit
Ampacity
40
20
20
Start Contactor Signal
Oil Pump Interlock
Run Contactor Signal
5X1-5
5X1-7, 5X1-8
5X1-10
1A23-J8-1
1A7-J2-4, 1A7-J2-2
1A23-J6-12
14
14
14
(a)
(b)
(c)
Transition Complete
Low Voltage Circuits Less than 30 Vac
5X1-14
Starter Panel Terminals
1A23-J12-2
Unit Control Panel
Terminations
Standard Circuits
Current Transformers (refer to
(b)
5CT4-white, black
5CT5-white, black
5CT6-white, black
1A23-J7-1,2
1A23-J7-3,4
1A23-J7-5,6
Potential Transformers (Required)
5T17-236,237
5T18-238,239
1A23-J5-1,2
1A23-J5-3,4
5T19-240,241
5X1-11
1A23-J5-5,6
1A24-J2-1
Solid State Stater Fault (c)
5X1-12 1A24-J2-2
Notes:
1
.
All wiring to be in accordance with National Electrical Code (NEC) and any local codes.
2
.
Starter by Others Specification
available from your local Trane sales office.
Note:
be maintained.
Note:
14
Phasing must
Phasing must be maintained.
Wires, lugs, and fuses/breakers are sized based on National Electric Code (NEC) [NFPA 70] and UL 1995.
Must be separated from 120 Vac and higher wiring.
Solid State Starter Fault input is used with low- and medium-voltage, customer-supplied solid state starters only.
20
20
20
20
Current Transformer and
Potential Transformer Wire
Sizing
For customer-supplied starter-to-chiller unit control panel starter module 1A23; these wires must be separated from 120 Vac or higher wiring.
Table 17.
Maximum recommended wire length for secondary current transformer (CT) leads in dual CT system
Wire AWG
(a)
8
Maximum Wire Length
Secondary CT Leads
Feet Meters
1362.8
415.5
10
12
14
16
856.9
538.9
338.9
213.1
261.2
164.3
103.3
65.0
17
18
169.1
134.1
51.5
40.9
20 84.3
25.7
Notes:
1
.
Wire length is for copper conductors only.
2
.
Wire length is total one-way distance that the CT can be from the starter module.
(a) Wires, lugs, and fuses/breakers are sized based on National Electric
Code (NEC) [NFPA 70] and UL 1995.
CVHE-SVX02M-EN 55
Table 18.
Maximum recommended total wire length for potential transformers (PTs) in a single
PT system
Wire AWG (a)
Maximum Lead Length
Feet Meters
8
10
12
14
16
5339
3357
2112
1328
835
1627
1023
643
404
254
17
18
20
21
662
525
330
262
201
160
100
79
22 207 63
Notes:
1
.
Wire length is for copper conductors only.
2
.
Wire length is maximum round trip wire length. The maximum distance the PT can be located from the starter module is half of the listed value.
(a) Wires, lugs, and fuses/breakers are sized based on National Electric
Code (NEC) [NFPA 70] and UL 1995.
Table 19.
Maximum recommended total wire length
(to and from) for PT leads in a dual PT system
Wire AWG
(a)
Max Wire Length
Primary
Feet Meters
Max Wire Length
Secondary
Feet Meters
8
10
12
14
16
3061
1924
1211
761
478
933
586
369
232
145
711
447
281
177
111
217
136
85
53
33
17
18
20
21
379
301
189
150
115
91
57
45
88
70
44
34
26
21
13
10
22 119 36 27 8
Notes:
1
.
Wire length is for copper conductors only.
2
.
Wire length is maximum round trip wire length. The maximum distance the PT can be located from the starter module is half of the listed value.
(a) Wires, lugs, and fuses/breakers are sized based on National Electric
Code (NEC) [NFPA 70] and UL 1995.
56 CVHE-SVX02M-EN
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