Carrier WeatherMaster Series - Units with Factory- - Installed; Non- - Fused Disconnect or HACR

16
Field power wires will be connected at the line--sid e pressu r e
lugs on the power terminal block or at factory--installed
option non--fused disconnect or HACR.
Field power wires are connected to the unit at line --side
pressure lugs on compressor conta ctor C and indoor fan
contactor IFC (see wiring diagram label for control box
component arrangement), or at factory--installed option
non--fused disconnect switch or HACR or electric heat
single point box. Max wire size is #4ga AWG (copper
only) per pole on contactors, #4ga AWG (copper only) or
1/0 AWG (copper only) pe r pole on opti onal disconnect
(max wire siz e depends on the disconnect size supplied
with unit), 1/0 AWG (copper only) on optional HACR and
4/0 AWG (copper only) per pole on terminal or fuse block
on units with single point box. See Fig. 16 and unit label
diagram for field power wiring connections.
NOTE: TEST LEADS -- Unit may be equipped with short
leads (pigtails) on the field line connection points on
contactor C or optional disconnect switch or HACR. These
leads are for factory run--test purposes only; remove and
discard before connecting field power wires to unit
connection points. Make field power connections directly to
line connection press ure lugs only.
Units with Factory--Installed
Non--Fused Disconnect or HACR —
The factory--installed optional non--fused disconnect (NFD)
sw itch or HA CR is located in a weatherpr oo f enclosu re
located under the main control box. See Fig 18 on page 17
for NFD location and see Fig. 20 on pag e 17 for HA C R
location. The manual switch handle and shaft are shipped in
the dis con nect or HA CR enclosu re. Ass emble the shaft and
handle to the switch at this point. Discard the factory test
leads (see Fig. 16).
Connect field power supply conductors to LINE side
terminals when the switch enclosure cover is rem oved to
attach the handle.
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 air conditioning unit. Use only copper wire.
(See Fig. 17.)
!
WARNING
Units without Single Point Box, Disconnect or HACR Option
Units with Disconnect or HACR 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)
Units with Electric Heat Option with Single Point Box
and without Disconnect or HACR 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
Disconnect
per
NEC
11 13 13
L1
L2 L3
CIFC
208/230-3-60
460-3-60
575-3-60
Ground
(GR)
Equip
GR Lug
C12310
Fig. 16 -- Power Wiring Connections
COPPER
WIRE ONLY
ELECTRIC
DISCONNECT
SWITCH
ALUMINUM
WIRE
A93033
Fig. 17 -- Disconnect Switch and Unit