Ultra-air DEH 3000R Manuel du propriétaire télécharger pdf (Page 15)

Ultra-Aire 70H Installer’s & Owner’s Manual

10.4 Compressor/Capacitor Replacement

This compressor is equipped with a two terminal external

overload and a run capacitor, but no start capacitor or relay.

CAUTION

CAUTION-ELECTRICAL SHOCK HAZARD: Electrical power

must be present to perform some tests. These tests

should be performed by a qualiﬁed service person.

10.5 Electric Ventilation Damper

The damper will open when the ventilation is called for,

allowing fresh air into the structure through the fresh air

inlet duct. The electric ventilation damper will remain closed

when the ventilation is not activated in order to prevent over-

ventilating the structure when the unit is dehumidifying or

recirculating the indoor air. The electric ventilation damper

operates on 24 Vac from the control circuit. DO NOT connect

high voltage to the damper motor or damage to the motor

will result. DO NOT force the blade of the damper by hand or

damage to the damper motor may result.

The damper opens in one direction only. The damper rotates

very slowly, allow sufcient time for the damper to cycle. The

damper will take approximately one minute to cycle from

closed to open or from open to closed.

If the electric ventilation damper fails to operate:

1. Check that the wiring is correct and that voltage is

present at the damper motor.

2. Check for any obstruction inside the damper. If the

electric ventilation damper fails to operate after

performing these checks, it must be replaced.

FOR HVAC INSTALLER ONLY

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Ultra-air DEH 3000R Manuel du propriétaire Page 15