Carrier ComfortLink 6 Series Controls, Start-Up, Operation, Service, And Troubleshooting page 132

II. Preliminary Equipment Check (to be completed by installing contractor)
Is there any physical damage?
Description _________________________________________________________________________
__________________________________________________________________________________
1. Unit is installed level as per the installation instructions.
2. Power supply agrees with the unit nameplate.
3. Correct control voltage ________vac.
4. Electrical power wiring is installed properly. (Branch circuit fused
or HACR breaker)
5. Unit is properly grounded.
6. Electrical circuit protection has been sized and installed properly.
7. All terminals are tight.
8. All plug assemblies are tight.
9. All cables and thermistors have been inspected for crossed wires.
10. All thermistors are fully inserted into wells.
11. Mechanical room maintained above 50 F (10 C) (30HX only).
12. Relief valve vent piping installed per local codes.
13. Wind baffles installed (30GX, 09DX).
NOTE: Required for unit operation where winds of 5 mph (2.2 m/s) or
greater are anticipated at outdoor ambient temperatures below 32 F (0° C).
Chilled Water System Check
1. All chilled water valves are open.
2. All piping is connected properly.
3. All air has been purged from the system.
4. Chilled water pump is operating with the correct rotation.
5. Chilled water pump starter interlocked with chiller.
6. Inlet piping to cooler includes a 20 mesh strainer.
7. Water loop volume greater than 3 gal/ton for air conditioning
or 6 gal/ton for process cooling and low ambient operation.
8. Proper loop freeze protection provided to ____ °F (°C).
Antifreeze type__________________ Concentration _________%.
(If antifreeze solution is not utilized on 30GX machines and the minimum
outdoor ambient is below 32 F (0° C) then items 9-12 have to be
completed to provide cooler freeze protection to 0° F. Refer to Installation
Instructions for proper cooler winterization procedure.)
9. Outdoor piping wrapped with electric heater tape.
10. Cooler heaters installed and operational (30GX Only).
11. Cooler heads and tube sheets are insulated.
12. Chilled water pump controlled by chiller.
(Chilled water pump will start automatically to circulate water through
cooler during potential freezing conditions.)
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