14
Step 5 — Complete Electrical Connections —
Installation of wiring must conform with local building codes
and with National Electric Code ANSI/NFPA 70 (current
editions). Units must be electrically grounded in conformance
with the code. In Canada, wiring must comply with CSA
C22.1, Electrical Code.
This equipment in its standard form is designed for an
electrical supply of 208/230-1-60. Any damage to or failure of
units caused by incorrect wiring or voltage is not covered by
the warranty.
Electric wiring must be sized to carry the full load amp draw of
the motor, starter, and any other controls that are used with the
unit. See Table 4 for electrical data.
Table 4 — 40VMM Electrical Data
After the pipe work is complete, the electrical supply can be
connected by routing the cable through the appropriate casing
holes or knockouts and connecting the supply and ground
cables to the unit’s power terminal.
Be sure the power wiring and control wiring do not cross. This
might cause disturbance on the controls side. See Fig. 22 and
23 for wiring diagrams.
NOTE: The indoor unit requires its own power supply. Indoor
units are not powered through outdoor units.
WARNING
Electrical shock can cause personal injury and death.
Disconnect the power supply before making wiring
connections. There may be more than one disconnect
switch. Tag all disconnect locations to alert others not to
restore power until work is completed.
WARNING
All units must be wired strictly in accordance with the
wiring diagram supplied with the unit. Any wiring different
from the wiring diagram could result in personal injury and
property damage.
CAUTION
Any original factory wiring that requires replacement must
be replaced with wiring material having a temperature
rating of at least 105
°C.
Ensure supply voltage to the unit, as indicated on the serial
plate, is not more than 10% over or under the rated voltage.
Failure to follow these recommendations may result in
equipment damage.
40VMM UNIT SIZE
POWER SUPPLY
MCA MOPD
007A 1.25 15
009A 1.25 15
012A 3.13 15
015A 3.13 15
018A 3.13 15
024A 3.13 15
030A 5.00 15
036A 5.00 15
048A 5.00 15
LEGEND
MCA — Minimum Circuit Amps
MOPD — Maximum Overcurrent
Protective Device
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