![background image](http://html.mh-extra.com/html/carrier/50hcq12/50hcq12_installation-instructions-manual_2563303015.webp)
15
Fig. 22 —
Conduit into Control Box
Fig. 23 —
Conduit into Single Point Box
Fig. 24 —
Mounting Position for Field Disconnects
(over 100A)
Fig. 25 —
Mounting Position for Field Disconnects
(up to 100A)
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.
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. 27). Max wire size is #2
AWG (copper only). See Fig. 26.
Fig. 26 —
Power Wiring Connections
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 50HCQ12
Page 4: ...4 Fig 2 Unit Dimensional Drawing Size 12 Units ...
Page 5: ...5 Fig 2 Unit Dimensional Drawing Size 12 Units cont ...
Page 9: ...9 Fig 6 Roof Curb Details REV 50TM500827 ...
Page 25: ...25 Fig 42 Typical 50HCQ Control Wiring Diagram ...
Page 26: ...26 Fig 43 Typical 50HCQ Power Wiring Diagram 208 230 3 60 unit shown ...
Page 27: ...27 Fig 44 PremierLink Controller Wiring Schematic ...
Page 28: ...28 Fig 45 RTU Open Controller System Wiring Diagram ...