28
ComPac 9/04-12
Important
All electrical work must meet the requirements of local codes and ordinances. Work
should be done only by qualified persons.
The ComPac
®
units may incorporate an internal crankcase heater for compressor protection.
The crankcase heater must be energized for at least 24 hours prior to starting the
compressor.
High Voltage Wiring - (Single Units)
The power supply should have the proper voltage, phase, and ampacity for the selected
model.
1. Size the incoming power supply lines according to Code requirements. Run the power
conductors through the knockouts on the wall side of the unit, or to those adjacent to
the electrical control box. Use appropriate conduit and strain reliefs.
2. Connect the wires to the input side of the internal breaker or terminal block (L1 & L2
for single-phase units; L1, L2, & L3 for three-phase models).
3. Install the ground wire on the ground lug.
2.8
E
LECTRICAL
C
ONNECTIONS
IMPORTANT
Figure 7. ComPac
®
I and ComPac
®
II A/C Wall Mount Detail (AVP20-72)
SUPPLY AIR
RETURN AIR
FOAM SEAL
DUCT EXTENSIONS (Not Supplied with Unit)
GRILLE
GRILLE
COMPAC II A/C
ONLY
