Liebert Challenger 3000

9.0 SEMIANNUAL MAINTENANCE INSPECTION CHECKLISTSemiannual Maintenance Inspection ChecklistDate:________________________________________Model #:_____________________________________Filters___ 1. Restricted air flow___ 2. Check filter switch___ 3. Wipe section cleanBlower Section___ 1. Impellers free of debris and move freely___ 2. Check belt tension and condition___ 3. Bearings in good condition___ 4. Inspect & tighten electrical connectionsCompressor___ 1. Check oil leaks___ 2. Check for leaks___ 3. Inspect & tighten electrical connectionsAir Cooled Condenser (if applicable)___ 1. Condenser coil clean___ 2. Motor mounts tight___ 3. Bearings in good condition___ 4. Refrigerant lines properly supported___ 5. Inspect & tighten electrical connectionsWater/Glycol Condenser (if applicable)___ 1. Copper tube clean___ 2. Water regulating valves function___ 3. Glycol solution___ 4. Check for water/glycol leaksGlycol Pump___ 1. Glycol leaks___ 2. Pump operation___ 3. Inspect & tighten electrical connectionsPrepared by:_________________________________Serial #:_____________________________________Steam Generating Humidifier___ 1. Check canister for deposits___ 2. Check condition of steam hoses___ 3. Check water make-up valve for leaks___ 4. Inspect & tighten electrical connectionsInfrared Humidifier___ 1. Check pan drain for clogs___ 2. Check humidifier lamps___ 3. Check pan for mineral deposits___ 4. Inspect & tighten electrical connectionsRefrigeration Cycle/Section___ 1. Check refrigerant lines___ 2. Check for moisture (sight glass)___ 3. Check suction pressure___ 4. Check head pressure___ 5. Check discharge pressure___ 6. Check hot gas bypass valve___ 7. Check thermostatic exp. valveAir Distribution Section___ 1. Restriction in grille free areaRefrigerant Charge___ 1. Check refrigerant levelElectrical Panel___ 1. Check fuses___ 2. Inspect & tighten electrical connections___ 3. Check operation sequence___ 4. Check contactor operationReheat___ 1. Check reheat element operation___ 2. Inspect elements for cleanliness___ 3. Inspect & tighten electrical connectionsNotesSignatureMake photocopies of this form for your records65