Liebert 3000 Filters, Water/Glycol Condenser if applicable, Glycol Pump, Electrical Panel, Reheat

Semiannual Maintenance Inspection Checklist

9.0SEMIANNUAL MAINTENANCE INSPECTION CHECKLIST

Date:________________________________________

Model #:_____________________________________

Filters

___ 1. Restricted air flow

___ 2. Check filter switch

___ 3. Wipe section clean

Blower Section

___ 1. Impellers free of debris and move freely

___ 2. Check belt tension and condition

___ 3. Bearings in good condition

___ 4. Inspect & tighten electrical connections

Compressor

___ 1. Check oil leaks

___ 2. Check for leaks

___ 3. Inspect & tighten electrical connections

Air 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 connections

Water/Glycol Condenser (if applicable)

___ 1. Copper tube clean

___ 2. Water regulating valves function

___ 3. Glycol solution

___ 4. Check for water/glycol leaks

Glycol Pump

___ 1. Glycol leaks

___ 2. Pump operation

___ 3. Inspect & tighten electrical connections

Notes

Prepared 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 connections

Infrared Humidifier

___ 1. Check pan drain for clogs

___ 2. Check humidifier lamps

___ 3. Check pan for mineral deposits

___ 4. Inspect & tighten electrical connections

Refrigeration 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. valve

Air Distribution Section

___ 1. Restriction in grille free area

Refrigerant Charge

___ 1. Check refrigerant level

Electrical Panel

___ 1.	Check fuses
___ 2.	Inspect & tighten electrical connections
___ 3.	Check operation sequence
___ 4.	Check contactor operation

Reheat

___ 1. Check reheat element operation

___ 2. Inspect elements for cleanliness

___ 3. Inspect & tighten electrical connections

Signature

Make photocopies of this form for your records

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