
(©July, 2008)
CeilAiR OHS Series Installation, Operation & Maintenance Manual
ir Technology Systems, Inc.
A-2
OHS Series Precision Air Conditioner Telephone: (301) 620-2033
Facsimile: (301) 620-1396
Periodic General Maintenance Checks and Services Checklist
Date: ____________________________ Prepared By: ___________________________
Model Number: ____________________________ Serial Number: __________________________
Item Number: ____________________________
Monthly
Filters Blower Section Condensate Drain
Cleanliness Blower Turns Drain is Open
No Obstructions Belts (if applicable) Condensate Pan Safety
Switches Operate Freely
Miscellaneous
Check Glycol or Chilled water for Air (bleed as required)
External Heat Exchanger Clean and Clear of Obstructions
Humidifier Cylinder and Controls Operate Properly
Semi-Annually
Check Refrigerant Charge (bubbles in sight glass) Tighten Electrical Connections
Check Suction & Discharge Pressure Check Contacts on Contactors
for Pitting
Check Glycol Solution Concentration in System Clean Unit as Necessary
Clean Coils Test the Glycol Solution
Inhibitors (flush if necessary)
Heat/Reheat Operational Clean Condensate Pump
Annually
Refrigerant Systems Chilled Water Systems
Inspect Glycol System for Leaks and Corrosion Inspect Chilled Water System
for Leaks and Corrosion
Conduct a Complete Check of All Services Listed Conduct a Complete Check of
Above and Clean Unit's Interior All Services Listed Above and
Clean Unit's Interior
Notes:
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Signature:________________________________
*** If factory assistance is required for any reason, provide the model number, serial number, and SATS item
number found on the unit nameplate. This will speed the process and ensure accuracy of information. ***
ir Technology Systems, Inc.
Frederick, Maryland USA 21704
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