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Fig. 20 — Mounting Position for Field Disconnects
(over 100A)
Fig. 21 — Mounting Position for Field Disconnects
(up to 100A)
Field power wires are connected to the unit at line-side
pressure lugs at the main terminal block (TB1) or at factory-
installed option non-fused disconnect switch. See Fig. 22.
Max wire size is #2 AWG (copper only). See Fig. 23.
WARNING
FIRE HAZARD
Failure to follow this warning could result in personal
injury, death, or property damage.
Do not connect aluminum wire between disconnect
switch and unit. Use only copper wire.
RAV-180-01SI
TEST LEADS - Unit may be equipped with short leads (pig-
tails) on the field line connection points off the optional dis-
connect switch. These leads are for factory run-test purpos-
es only; remove and discard before connecting field power
wires to unit connection points. Make field power connec-
tions directly to line connection pressure lugs only.
FIELD WIRING
All field wiring must comply with the NEC and local
requirements.
All units except 208/230-v units are factory wired for the
voltage shown on the nameplate. If the 208/230-v unit is to
be connected to a 208-v power supply, the control trans-
former must be rewired by moving the black wire with the
1/4 in. female spade connector from the 230-v connection
and moving it to the 200-v 1/4 in. male terminal on the pri-
mary side of the transformer. Refer to unit label diagram for
additional information.
Size wire based on MCA (Minimum Circuit Amps) on the
unit informative plate. See Fig. 23 and the unit label diagram
for power wiring connections to the unit power terminal
blocks and equipment ground. Maximum wire size is 2/0
AWG per pole.
Provide a ground-fault and short-circuit over-current protec-
tion device (fuse or breaker) per NEC Article 440 (or local
codes). Refer to unit informative data plate for MOCP (Max-
imum Over-current Protection) device size.
Specifications subject to change without notice.
Electric
Disconnect
Switch
Copper
Wire Only
Aluminum
Wire
Fig. 22 — Disconnect Switch and Unit
Units Without Disconnect Option
TB1
11
12
Disconnect
per
NEC
L1
L2
208/230-3-60
460-3-60
575-3-60
Units With Disconnect Option
L1
2
Optional
Disconnect
L2
4
Switch
L3
6
Disconnect factory test leads; discard.
Fig. 23 — Power Wiring Connections
13
L3
1
Factory
3
Wiring
5
13
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