EMI CAC - Manual (Page 12)

www.enviromaster.com CAC Cassette Evaporator 12
CAC CASSETTE EVAPORATOR INSTALLATION INSTRUCTIONS
4. Slide cover
up and out
to remove.
All wiring should be in accordance with
the National Electric Code (NEC) and the
local building codes.
1. Make sure power is off.
2. Inspect the existing wiring for any de-
fi ciencies such as cut or frayed wires.
Replace if any such wiring if found.
3. Remove the 4 screws securing the
control box cover.
The standard unit Voltage is 208/230V
(60Hz, 1Ph). Check the unit’s rating plate
for your models’ electrical requirements.
• The wires should be capable of carry-
ing the maximum load current under
non-fault conditions at the stipulated
Voltages.
• Avoid large Voltage drops on cable
runs, particularly in low Voltage wir-
ing.
• The correct cable size must be used to
ensure a Voltage drop of less than 1
Volt in the control wiring.
• Once the refrigeration pipe work is
complete, the electrical supply can be
connected.
• Low Volt wiring must be at least 18 awg.
Electrical Wiring
5. The rating plate is located on the outside
of control box cover (see Low Volt Inter-
connecting Wiring section for location of
wiring diagram).
6. Check the unit rating plate for circuit
ampacity and breaker or fuse size. Use
only HACR type breakers. Select the
proper wire for the ampacity rating.
7. Each unit must have a separate branch
circuit protected by a fuse or breaker.
Refer to the unit rating plate for the
proper wire and breaker or fuse size.
8. It is also recommended that a local dis-
connect switch be connected within 3’
of the unit. In some areas this may be a
code requirement.