Desert Aire Aura QS, Installation And Operation Manual

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TotalAire and VerticalAire dehumidifiers installed with remote condensers may require additional
oil and refrigerant charge at the time of field installation. Refer to the submittal documentation or
label adjacent to the remote condenser connections to confirm the charge and connection tube sizes.
2.7 High Voltage Wiring
1. Disconnect power before servicing. The unit contains high voltage wiring and
moving parts which may cause serious injury or death.
2. Failure to properly wire the dehumidifier may create the possibility of shock and
can lead to premature system failure.
For any unit labeled Class 1, Group D, Division 2, all wiring must be in accordance to
Class 1, Group D, Division 2 requirements. Insure that all local, state, national and any
other applicable codes are adhered to when connecting any device to this equipment.
All electrical connections to units labeled Class 1, Group D, Division 2 must be done
with a conduit seal.
Electrical wiring must comply with all national, state, and local codes. Refer to the wiring
diagram located inside the electrical section for all wiring connections. To connect main power,
attach the supply wires to the three-pole power block mounted on the electrical panel. Test the
phasing by “bumping” the blower contactor. Verify that the blower rotates in the proper
direction. If it rotates the wrong direction, switch any two of the three wires at the power block.
2.7.1 High Voltage Connections
On single phase units the power supply must have 3 connections (2 power and 1
ground). On three phase units the power supply must have 4 connections (3 power
and 1 ground). Connect the power supply wires to the main power block located in the
upper section of the electrical compartment.
Desert Aire - QS/QV Manual