13
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.
Fig. 22 — Disconnect Switch and Unit
Fig. 23 — Power Wiring Connections
TEST LEADS - Unit may be equipped with short leads (pigtails)
on the field line connection points off the optional disconnect
switch. These leads are for factory run-test purposes only; remove
and discard before connecting field power wires to unit connec
-
tion points. Make field power connections directly to line connec
-
tion 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 transformer 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 primary side of the transformer. Refer to unit label
diagram for additional information.
Size wire based on MCA (Minimum Circuit Amps) on the unit in
-
formative plate. See Fig. 23 and the unit label diagram for power
wiring connections to the unit power terminal blocks and equip
-
ment ground. Maximum wire size is 2/0 AWG per pole.
Provide a ground-fault and short-circuit over-current protection
device (fuse or breaker) per NEC Article 440 (or local codes). Re
-
fer to unit informative data plate for MOCP (Maximum Over-cur
-
rent Protection) device size.
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.
Copper
Wire Only
Electric
Disconnect
Switch
Aluminum
Wire
Units Without Disconnect Option
Units With Disconnect Option
2
4
6
1
3
5
L1
L2
L3
Optional
Disconnect
Switch
Disconnect factory test leads; discard.
Factory
Wiring
11
12
13
L1
L2
L3
TB1
208/230-3-60
460-3-60
575-3-60
Disconnect
per
NEC
Summary of Contents for WeatherMaker 50FC-16 Series
Page 4: ...4 Fig 2 50FC 16 Unit Dimensional Drawing ...
Page 5: ...5 Fig 2 50FC 16 Unit Dimensional Drawing cont ...
Page 8: ...8 Fig 5 50FC 16 Roof Curb Details ...
Page 21: ...21 Fig 42 Typical Control Wiring Diagram Electro Mechanical with W7220 Controller ...
Page 22: ...22 Fig 43 Typical Control Wiring Diagram SystemVu Controller ...
Page 23: ...23 Fig 44 Typical Power Wiring Diagram 208 230 460 3 60 Unit Shown ...
Page 24: ...24 Fig 45 Typical Power Wiring Diagram 575 3 60 Unit Shown ...
Page 41: ......