6 CHECKLIST FOR COMPLETED INSTALLATION
6.1 Moving and Placing Equipment
______ 1. Unpack and check received material.
______ 2. Proper clearance for service access has been maintained around the equipment.
______ 3. Equipment is level and mounting fasteners are tight.
6.2 Electrical
_________ 1. Line voltage connected and matches equipment nameplate.
_________ 2. Power line circuit breakers or fuses have proper ratings for equipment installed.
_________
3. Control wiring connections completed between indoor cooling unit and
condenser.
_________
4. All internal and external high-voltage and low-voltage wiring connections are
tight to the proper torque ratings shown on the components.
_________ 5. Confirm that unit is properly grounded to an earth ground.
_________ 6. Electrical service conforms to national and local codes.
_________
7. Monitoring wiring connections completed, when equipped, to indoor cooling unit
or external monitoring panel.
_________
8. Verify that the Premium EC fan condenser is not connected to a delta power
supply.
_________
9. Verify that the CANbus wiring, CANbus “END of Line” jumper position and the
CANbus “Device Address DIP Switch” setting is correct according to the
application at the job site.
_________
10. Verify that Terminals 70, 71 and 230 (when applicable) are used and that they
are properly wired, particularly on systems that use two condensers for one
indoor unit.
6.3 Piping
_________ 1. Piping is completed to corresponding indoor cooling unit refrigeration circuit.
_________ 2. Piping is leak-checked, evacuated and charged with specified refrigerant.
_________ 3. Additional refrigerant oil added, if required, per circuit.
_________ 4. Piping is properly sized, sloped and trapped for proper oil return.
_________ 5. Piping is routed to reduce potential of rub-through or chaffing.
_________
6. Hot gas line on Liebert Lee-Temp™ is fastened to the side of the cabinet and
isolated for vibration reduction.
Vertiv | Liebert® MC™ Installer/User Guide | 83
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