User Manual

13
Copper Wire Ampacity
Wire Size AWG Maximum Amps
14 15
12 20
10 30
8 50
6 65
4 85
PCUFMM Wiring
Before connecting power to the control, read and
understand the entire section of this document. As-built
wiring diagrams are furnished with each control by the
factory, and are attached either to the door of the unit or
provided with the paperwork packet.
Electrical wiring and connections should be done in
accordance with local ordinances and the National
Electric Code, ANSI/NFPA 70. Be sure the voltage and
phase of the power supply and the wire amperage
capacity is in accordance with unit nameplate.
1. Always disconnect power before working on
the PCUFMM. Lock and tag the disconnect
switch to breaker to prevent accidental power
up.
2. 120VAC should be wired from terminals H1, N1,
P2, P3, P4 and AA to like terminals in the
Electrical Control Package.
• For an EMS, Terminal H1 is wired to
H1B and N1, P2, P3, P4, AA are wired
to like terminals in the Electrical Control
Package.
• For an EMS PLUS, Terminal H1 is wired
to H1B and N1, MBA, MBB, MBC are
wired to like terminals in the Electrical
Control package. MBA, MBB and MBC
are connected to the EMS plus using
shielded single twisted pair cable like
Beldon # 88760.
3. Make certain that the power source is compatible with the requirements of your equipment. The
system wiring schematic identifies the proper phase and voltage of the equipment.
4. Before connecting control to power source, verify power line wiring is de-energized.
5. Do not kink the power cable and never allow the cable to come in contact with oil, grease, hot
surfaces or chemicals.
6. Before powering up the system, make sure that the interior of the control is free of loose debris or
shipping materials.
WARNING!!
Disconnect power before
installing or servicing
control. High voltage
electrical input is needed for
this equipment. This work
should be performed by a
qualified electrician.