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Desert Aire - LC/LV Manual
3.
Start-up Procedure
Read this section thoroughly before attempting to commission the Desert Aire dehumidifier.
A complete start-up will minimize operational problems and expensive callbacks. The start-up
will be quicker and easier if there is a heat and humidity load present in the space. Energize
any auxiliary heaters before start-up so that the air is at the design temperature.
3.1
Preliminary Inspection
Verify that all contractors have completed their work. Find the Desert Aire “LC and LV Start-Up
Report,” which is normally placed inside this manual within the electrical compartment of the
dehumidifier. You must fill out the start-up report to validate the dehumidifier warranty.
Check the following items:
•
Before starting unit, remove wooden shipping blocks found beneath compressor(s).
•
Before starting unit, remove shipping restraining brackets on supply blower equipped
with a spring isolation base, if applicable.
•
Make sure that the unit is level and securely mounted so that it cannot shift or transmit
vibration to the building.
•
Verify that the incoming power supply matches the rating plate of the dehumidifier.
The available power supply voltage must be within ±5% of the voltage printed on the
rating
plate.
•
With the power supply disconnected and locked, tighten all field and factory electrical
connections.
•
Check and adjust the belt tension for proper deflection at the mid-point of the blower
belt(s).
•
The deflection is based on the belt length. The belt length can be found on the belt
itself. Determine the force using the Belt Deflection Force table below.
Figure 17 - Specified Belt Deflection Table
Belt Length
25” to 50”
51” to 70”
71” to 110”
Deflection
0.25”
0.375”
0.625”
Specified Belt Deflection
