OMM 1087 AGZ 025D through 190D 65
Recommended Periodic Inspection
!
WARNING
Electrical Shock Hazard. Before servicing or inspection equipment, disconnect power to the unit.The
internal capacitor remains charged after power is turned off. Wait at least the amount of time specified on
the drive before touching any components.
Table 21, Periodic Inspection Checklist
Inspection Area Inspection Points Corrective Action
Inspect equipment including wiring, terminals,
resistors, capacitors, diode and IGBT for
discoloration from overheating or deterioration.
Replace damaged components.
General
Inspect for dirt or foreign particles Use dry air to clear away.
Inspect contactors and relays for excessive
noise.
Check for over or undervoltage
Relays and Contactors
Inspect for signs of overheating such as melted
or cracked insulation
Replace damaged parts.
Optional BAS Interface
The AGZ chiller controller is configured for stand-alone operation or integration with BAS through an
optional communication module.
The following installation manuals for optional BAS interface modules are shipped with the chiller.
They can also be found and downloaded on www.mcquay.com under Product Information >
Air cooled Chillers> Scroll Type >Literature>Installation & Operation Manuals:
IM 966, BACnet® IP Communication Module
IM 967, BACnet® Communication Module (MS/TP)
IM 968, L
ONWORKS Communication Module
IM 969, Modbus® Communication Module
ED 15120, Protocol Information for MicroTech III chiller, BACnet and L
ONWORKS
ED 15121, Protocol Information for MicroTech III chiller, Modbus
,
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