Carrier WeatherMaster 50HC14 Installation Instructions Manual page 15

Fig. 24 — 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 or HACR, or
field-installed or factory-installed Single Point box for elec-
tric heat. Refer to Table 3 for maximum wire size at connec-
tion lugs. Use copper wire only. See Fig. 25.
Table 3 — Connection Lug Min/Max Wire Sizes
TB1 in unit control box
Terminal/Fuse block in Single
Point Box for Electric Heat
80A Disconnect Option
100A Disconnect Option
200A Disconnect Option
25A HACR Option
30A HACR Option
35A HACR Option
40A HACR Option
50A HACR Option
60A HACR Option
70A HACR Option
80A HACR Option
90A HACR Option
100A HACR Option
110A HACR Option
125A HACR Option
150A HACR Option
175A HACR Option
200A HACR Option
NOTE: TEST LEADS — Unit may be equipped with short
leads (pigtails) on the field line connection points off the optional
non-fused disconnect switch or HACR. These leads are for fac-
tory run-test purposes only; remove and discard before connect-
ing field power wires to unit connection points. Make field pow-
er connections directly to line connection pressure lugs only.
Minimum Maximum
#14 #1
#8 3/0
#14 #4
#8 1/0
#4 300 kcmil
#14 1/0
#14 1/0
#14 1/0
#14 1/0
#14 1/0
#14 1/0
#14 1/0
#14 1/0
#14 1/0
#14 1/0
#4 300 kcmil
#4 300 kcmil
#4 300 kcmil
#4 300 kcmil
#4 300 kcmil
Units Without Single Point Box, Disconnect or HACR Option
11
L1
208/230-3-60
Units With Disconnect or HACR Option
L1 2
4
L2
L3
6
Ground
(GR)
Disconnect factory test leads; discard.
Units With Electric Heat Option with Single Point Box
and Without Disconnect or HACR Option
L1
L2
L3
Ground (GR)
L1
L2
L3
Ground (GR)
Fig. 25 — Power Wiring Connections
FIRE HAZARD
Failure to follow this warning could result in intermittent
operation or performance satisfaction.
Do not connect aluminum wire between disconnect switch
and unit. Use only copper wire.
15
TB1
Equip
12 13
GR Lug
Disconnect
per
NEC
L2 L3 Ground
(GR)
460-3-60
575-3-60
1
Optional
Disconnect
3
Switch
or HACR
5
Equip GR Lug
Single Point Box
Terminal Block
Equip GR
Lug
— OR —
Single Point Box
Fuse/Terminal Block
Fuse
Fuse
Fuse
Equip GR
Lug
WARNING
Factory
Wiring
Factory
Wiring
Factory
Wiring