Wire Selection Chart For Starter Panels; Electrical Installation - Trane RTHC Installation Operation & Maintenance

Table 12

Wire Selection Chart for Starter Panels

Min. Wire
Size 1 Conduit
°
Copper 75 C 3 Wire
2 92
1 104
0 120
00 140
000 160
0000 184
250 204
300 228
350 248
400 268
500 304
* Conductors to the starter and motor connected in parallel (electrically joined at both ends to form a single conductor) must be sized 0 (1/0)
or larger per NEC 310-4. Each phase must be equally represented in each conduit.
Figure 17

Electrical Installation

7" x 10" (178 x 254
mm) opening for
incoming line power
Field installed terminal box
(for units with circuit
breaker or a mechanical
disconnect and RLA > 445
3 - 2
Supply Leads for All Starters (0 - 2000 Volts)
1 Conduit 1 Conduit
6 Wire 9 Wire
* *
* *
192 252
224 294
256 336
294 386
326 428
356 479
397 521
429 563
486 638
11.75"
(298 mm)
Starter/Control
Panel
Evaporator
2 Conduits 2 Conduits
6 Wire 12 Wire
* *
* *
360 384
420 448
480 512
552 589
612 653
684 730
744 794
804 858
912 973
14.12"
(359 mm)
3 Conduits 4 Conduits
9 Wire 12 Wire
* *
* *
360 480
420 560
480 640
552 736
612 816
684 912
744 992
804 1072
912 1216
(5) 7/8" (22 mm) dia knockout
for low voltage (max 30V)
UCP2 connections
(1) 1'-1/4" (32 mm) dia
knockout for printer cable
(10) 7/8" (22 mm) dia
knockout for 120 VAC control
voltage UCP2 connections
RTHC-IOM-1C