McQuay M5WM Series User Manual

IM-5WMF(SEER13)-0706 Page 11
Electrical Connections
• Wiring must be in accordance with all applicable
electrical codes.
• Wires must not touch the refrigerant piping,
compressor or any moving part.
• All electrical field wiring must be clamped at both the
indoor unit and the outdoor unit. See Figure 14 for
typical clamp.
• See Table 4, figure 13 and Figure 15 for the number
of wires, wire gauge and fuse/circuit breaker size
required.
Table 4: Wire and Fuse/Breaker Requirements
10/15
Unit Size
Indoor Outdoor
20/25
Voltage-1Ph/60Hz
115V 208/230V 208/230V
Power supply wire size
Number of wires
14 ga.
2 + gnd.
14 ga.
2 + gnd.
12ga.
2 + gnd.
Connecting wire size
Number of wires – A/C
Number of wires - HP
14 ga.
2
4
14 ga.
3 + gnd.
5 + gnd.
Fuse/Breaker size
15 amp 15 amp 20 amp
* Not including the Outdoor Coil Sensor Cable.
Figure 13. Cooling Only Size 10 & 15
Indoor Unit Outdoor Unit
Terminal Block Connecting Wires Terminal Block
COMP
N2
N1
L
NEC requires an approved
electrical disconnect within sight
of the unit so that anyone
working on the unit can turn the
power off and see that its not
accidentally turned back on. This
will require two disconnects, one
by the outdoor unit and one by
the indoor unit.
COMP
N2
N1
L
Power
supply
208/230V
!
L2
L1
N
L1
Power
supply
115V
Figure 14. Terminal Block and wire Clamp
Figure 15. Heat Pump Unit Size 10 & 15
4WV
OF
Comp
N2
N1
L
4WV
OF
Comp
N2
N1
L
!
Power
supply
208/230V
L2
L1
N
L1
Power
supply
115V
Outdoor coil sensor, 2 conductor cable, (26 feet long)
shipped with the indoor unit. Extend with 22 ga. low voltage
wire if not long enough to reach outdoor unit.
Indoor Unit
Terminal Block
Outdoor Unit
Terminal Block
Connecting Wires
NEC requires an approved
electrical disconnect within
sight of the unit so that
anyone working on the unit
can turn the power off and
see that its not accidentally
turned back on. This will
require two disconnects, one
by the outdoor unit and one
by the indoor unit
WARNING
!
Improper installation can cause severe personal
injury or death. Wiring must be done by a qualified
electrician in compliance with local codes. Model
10F, 10FR, 15F and 15FR are using two separate
power supply. Indoor unit powered by
115V/1Ph/60Hz. Outdoor unit powered by 208-
230V/1Ph/60Hz.

McQuay M5WM Series Specifications

General

Brand	McQuay
Model	M5WM Series
Category	Air Conditioner
Language	English