527 01 2701 00
Specifications subject to change without notice.
13
option non-fused disconnect switch. Maximum wire size
is #2ga AWG (copper only) per pole on contactors, #2ga
AWG (copper only) per pole on optional disconnect, and
4/0 AWG (copper only, see Fig. 17) per pole on terminal
or fuse blocks on units with single point box (see Fig. 18).
See Fig. 18 and unit label diagram for field power wiring
connections.
NOTE: Unit may be equipped with short test leads (pigtails)
on the field line connection points on contactor C or optional
disconnect switch. These leads are for factory-run test pur
-
poses only; remove and discard before connecting field
power wires to unit connection points. Make field power
connections directly to line connection pressure lugs only.
UNITS WITH FACTORY-INSTALLED NON-FUSED
DISCONNECT
The factory-installed optional non-fused disconnect (NFD)
switch is located in a weatherproof enclosure located under
the main control box. The manual switch handle and shaft
are shipped in the disconnect enclosure. Assemble the
shaft and handle to the switch at this point. Discard the fac
-
tory test leads (see Fig. 18).
Fig. 17 — Disconnect Switch and Unit
Connect field power supply conductors to LINE side termi
-
nals when the switch enclosure cover is removed to attach
the handle.
Fig. 18 — Power Wiring Connections
Field-Install the NFD Shaft and Handle
1. Remove the control box access panel. The NFD
enclosure is located below the control box (see
Fig. 19).
2. Remove (3) cap head screws that secure the NFD
enclosure front cover — (2) on the face of the cover
and (1) on the left side cover. See Fig. 20.
3. Remove the front cover of the NFD enclosure.
4. Make sure the NFD shipped from the factory is at
OFF position (the arrow on the black handle knob is
at OFF).
5. Insert the shaft with the cross pin on the top of the
shaft in the horizontal position. See Fig. 20.
WARNING
FIRE HAZARD
Failure to follow this warning could result in personal in
-
jury, death, or property damage.
Do not connect aluminum wire between disconnect
switch and unit. Use only copper wire.
COPPER
WIRE ONLY
ELECTRIC
DI
S
CONNECT
S
WITCH
ALUMINUM
WIRE
TB
TB
11
12
Disconnect
per
NEC
208/230-1-60
Disconnect
per
NEC
11
12
13
L1
L2
L3
208/230-3-60
460-3-60
575-3-60
Units Without Single Point Box or Disconnect Option
Units With Disconnect Option
L1
L2
L3
2
4
6
1
5
Optional
Disconnect
Switch
Disconnect factory test leads; discard.
Factory
Wiring
3
Equip
GR Lug
Ground
(GR)
Equip GR Lug
Ground
(GR)
3 Phase Only
3 Phase Only
Units With Electric Heat Option with Single Point Box
and Without Disconnect Option
L1
L2
L3
Single Point Box
Factory
Wiring
Equip GR
Lug
Ground (GR)
Terminal Block
— OR —
L1
L2
L3
Single Point Box
Factory
Wiring
Equip GR
Lug
Ground (GR)
Fuse/Terminal Block
Fuse
Fuse
Fuse
Summary of Contents for RHW036-060
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