46
SERVICE BULLETIN 027
QS / QM / QH / QV / LT / TOTAL AIRE FACTORY START-UP SUPERVISION
A
Factory Start-Up
requires a Desert Aire Service Department Technician to visit the jobsite and provide supervisory experience to installing
contractors as they perform the required procedures as outlined in our warranty activation Start-Up Report. The company technician will also
present an educational review of the dehumidifier’s operating and maintenance requirements. A
CST Start-Up
is performed by a local Certified
Service Technician who has been trained by Desert Aire. The CST performs all duties of commissioning and also trains responsible parties on
the proper maintenance and operation of the unit.
“Factory Start-Up is not an installation bid & therefore the system must be ready to run before scheduling.”
The Desert Aire Service Dept. will advise contractors of their responsibilities and coordinate all site visits. This start-up procedure may be
performed by Desert Aire OR an authorized “Certified Service Technician.” This document requires a signature and must be returned to Desert
Aire before the Factory- or CST-supervised start-up can be scheduled. Desert Aire will confirm the start-up dates upon receipt of the
pre-start-up checklist.
If a return trip must be scheduled due to insufficient jobsite preparation, a second P.O. # must be issued to
Desert Aire for re-scheduling.
The following list of items will apply to all start-ups and is the responsibility of the installing contractor. If you are unable to supply
any of the following equipment, you must contact Desert Aire before signing this document. You can reach
Desert Aire at (262) 946-7400.
Items needed for Start-Up:
• Equipped service vehicle and service technician – Technician will be trained.
• Refrigerant manifold gauges – 2 sets
• Air balancing equipment (Magnehelic® or manometer differential pressure gauge)
• Volt/Amp/OHM meters in working order.
• Digital thermometer w/clamp on sensors OR laser type temperature probe
• 50# of refrigerant (see order specs for refrigerant types) & weigh-in scale
• Hand pump for adding oil to compressor (Copeland Scroll)
• Refrigeration oil (POE) - Verify refrigerant type and use compatible refrigeration oil.
Items to be completed before Start-Up:
• Dehumidifier leak checked (with halogen leak detector) and inspected for internal concealed damage – Remove
access panels and inspect the interior of the unit for transit damage. If damage is noted, contact Desert Aire
immediately at
(262) 946-7400.
• Dehumidifier leveled and properly supported per the installation manual’s recommendations.
• Condensate P Trap installed.
• Remote condenser plumbed and inspected for freight damage (if applicable).
• Remote condenser circuit leak checked, evacuated and charged (if applicable). See installation manual for
refrigerant weights and condenser locations.
• All electrical connections terminated and verified for proper voltage at the unit.
• All field controls and sensors installed and circuits verified that they are wired correctly. If there are any
questions, contact Desert Aire at
(262) 946-7400.
• Units with heat pump option - verify water flow and design temperature. See unit labeling for details
(if applicable).
• Inspect all water lines for leaks and purge air from lines (if applicable).
• Verify that gas lines are installed, purged and set to the proper pressure. See label for gas pressure ratings
(if applicable).
A MINIMUM TWO WEEK LEAD TIME IS NEEDED TO SCHEDULE START-UP
Desert Aire Corporation • N120 W18485 Freistadt Road • Germantown, WI 53022 • (262) 946-7400 • Fax (262) 946-7401
Desert Aire - LW Manual
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