Fire Hazard - Carrier WeatherExpert 48LC 07 Series Installation Instructions Manual

Single package rooftop unit gas heat/electric cooling with puron (r-410a) refrigerant
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Refer to Fig. 40 for power transformer connections and the dis-
cussion on connecting the convenience outlet on page 25.
Field power wires will be connected at line-side pressure 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 pres-
sure lugs on compressor contactor C and indoor fan contactor
IFC (see wiring diagram label for control box component ar-
rangement), at factory-installed option non-fused disconnect
switch or HACR. Max wire size is #4 AWG (copper only) per
pole on contactors and #2ga AWG (copper only) per pole on
optional non-fused disconnect or HACR. See Fig. 25 and the
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 op-
tional 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 di-
rectly to line connection pressure lugs only.
Units Without Disconnect or HACR Option
C
11
13
L1
L2
208/230-3-60
460-3-60
575-3-60
Units With Disconnect or HACR Option
L1
2
Disconnect
L2
4
L3
6
Ground
(GR)
Disconnect factory test leads; discard.
Fig. 25 — Power Wiring Connections
IFC
Equip
13
GR Lug
Disconnect
per
NEC
L3
Ground
(GR)
1
Optional
3
Switch
Factory
Wiring
5
Equip GR Lug

FIRE HAZARD

Failure to follow this warning could result in personal inju-
ry, death, or property damage.
Do not connect aluminum wire between disconnect switch
and unit. Use only copper wire.
See Fig. 26 for disconnect switch information. See Fig. 27-33
for wiring diagrams.
ELECTRIC
DISCONNECT
SWITCH
Fig. 26 — Disconnect Switch and Unit
16
WARNING
COPPER
WIRE ONLY
ALUMINUM
WIRE

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