Electrical Installation; Principles Of Operation - nVent Hoffman SpectraCool Slim Fit Instruction Manual

ELECTRICAL INSTALLATION

1. Loosen the screw on the evaporator access panel and remove the power access panel. See Figure
9.
2. Push the power supply wire through the strain relief.
3. Connect the wire to the terminal block per the label.
4. Reinstall the power access panel and screw.
5. Tighten the screw on the strain relief to secure the supply wire, see Figure 10.
NOTE: Use a higher ampere rated circuit breaker, or time-delay fuse, that is closest to the
nominal ampere rating of the air conditioner, or sum of the individual component ampere
ratings, to protect the system electrical circuits from short circuit or overload.

PRINCIPLES OF OPERATION

If electrical power to the air conditioner is interrupted and reapplied, the compressor may take up to
� e (5) minutes to restart due to the high back pressure of the compressor.
NOTE: The controller includes a nominal time delay setting of 5 minutes. Do not decrease the
time delay setting to less than 2 minutes, as this may cause rapid cycling of the compressor,
which may reduce the life of the compressor.
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Figure 9
Figure 10
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