8 CHECKLIST FOR COMPLETED INSTALLATION
8.1 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.
4. If equipment has been disassembled for installation, unit must be reassembled per instructions.
8.2 Electrical Installation Checks
1. Supply voltage and phase matches equipment nameplate.
2. Power wiring connections completed to the disconnect switch, evaporator unit and heat
rejection equipment.
3. Power line circuit breakers or fuses have proper ratings for equipment installed.
4. Control wiring connections completed between indoor evaporator and heat-rejection
equipment.
5. All internal and external high- and low-voltage wiring connections are tight.
6. Confirm that unit is properly grounded to an earth ground.
7. Control transformer setting matches incoming power.
8. Electrical service conforms to national and local codes.
9. Check blowers and compressors for proper rotation.
8.3 Piping Installation Checks
1. Piping completed to refrigerant loop.
2. Piping has been leak-checked, evacuated and charged.
3. Additional oil has been added for system charges over 40 pounds (18.1kg) per circuit. See
Additional Oil Requirements forScrollandDigital-scrollCompressors on page38.
4. Piping is properly sized, sloped and trapped as shown in the piping schematics.
5. Check piping inside and outside of equipment for proper support and adequate spacing to
prevent rub-through.
6. Ensure that factory clamps have been reinstalled.
7. Drain line connected, not obstructed, and pitched per local code.
8. Water supply line connected to humidifier and not leaking.
9. Liebert® EconoPhase™ pumping unit has been correctly piped into the liquid line.
8.4 Other Installation Checks
1. Ducting or plenum assembly complete (if required), maintain access to filters.
2. On units with filter plenums, make sure filter-clog tubing is installed.
3. Filters installed.
4. Check fasteners that secure , reheats, humidifier and motors—some may have become loose
during shipment.
5. Verify water detection is properly installed around all units (recommended).
6. Blower drive system rotates freely.
7. All fans are free of debris.
8. Remove rubber band from float in optional infrared humidifier.
9. Seal openings around piping and electrical connections.
10. Installation materials and tools have been removed from equipment (literature, shipping
materials, construction materials, tools, etc.).
11. Locate blank start-up sheet, ready for completion by installer or start-up technician.
8 Checklist for Completed Installation 49