Operating instructions

60 IMM AGSB-60
Preventative Maintenance Schedule
PREVENTATIVE MAINTENANCE SCHEDULE
OPERATION WEEKLY
MONTHLY
(Note 1)
ANNUAL
(Note 2)
General
Complete unit log and review (Note 3) X
Visually inspect unit for loose or damaged components and
visible leaks
X
Inspect thermal insulation for integrity X
Clean and paint as required X
Electrical
Sequence test controls X
Check contactors for pitting, replace as required X
Check terminals for tightness, tighten as necessary X
Clean control panel interior X
Visually inspect components for signs of overheating X
Verify compressor and oil heater operation X
Megger compressor motor X
Refrigeration
Leak test X
Check sight glasses for clear flow X
Check filter-drier pressure drop (see manual for spec) X
Check oil filter pressure drop (Note 6) X
Perform compressor vibration test X
Perform acid test on compressor oil X
Condenser (air-cooled)
Clean condenser coils (Note 4) X
Check fan blades for tightness on shaft (Note 5) X
Check fans for loose rivets and cracks, check motor brackets X
Check coil fins for damage and straighten as necessary X
Notes:
1. Monthly operations include all weekly operations.
2. Annual (or spring start-up) operations include all weekly and monthly operations.
3. Log readings can be taken daily for a higher level of unit observation.
4. Coil cleaning can be required more frequently in areas with a high level of airborne particles.
5. Be sure fan motors are electrically locked out.
6. Replace the filter after first month of operation, thereafter replace the filter if pressure drop
exceeds Table 31 pressure levels.
Warranty Statement
Limited Warranty
Consult your local McQuay Representative for warranty details. Refer to Form 933-43285Y. To find your
local McQuay Representative, go to www.mcquay.com.