Carrier Weathermaster 48P030-100 Controls, Start-Up, Operation, Service, And Troubleshooting page 283

To be completed by installing contractor or Carrier Factory Service. A copy of the checklist and log must be provided to the
Carrier start-up team after start-up has been completed.
NOTE: To avoid injury to personnel and damage to equipment or
property when completing the procedures listed in this start-up
checklist, use good judgment, follow safe practices, and adhere
to the safety considerations/information as outlined in preceding
sections of this Controls, Start-Up, Operation, Service, and Trou-
bleshooting document.
Prior to performing start-up, the crankcase heaters must operate for 24 hours.
Cooling start-up can only be completed when the outdoor air temperature is above 60°F.
UNIT INFORMATION
Model Number ___________________________________
Software Version___________________________________
Technician ___________________________________
INSTRUCTIONS
Check the box to verify the activity has been completed. If the activity does not apply, write N/A in the box.
PRE-START-UP CHECK
 Unit is free from damage or defects; all parts and accessories appear to be properly installed.
 Unit has been installed with proper service clearances and with proper access.
 Verify that the supply and return ductwork has been installed and is complete.
 Power feed, voltage, overcurrent protection, and phasing are correct.
 Electrical connections and terminals are tight.
 Outdoor air screens, filters, condenser coil, and evaporator coil are all clean.
 Verify that suction, discharge, and liquid service valves on each circuit are open (if equipped).
 The refrigerant circuit has been leak checked.
 Crankcase heaters have been confirmed to be operating for 24 hours prior to cooling start-up.
 Ambient condition is above 60°F and will allow for cooling start-up.
 Compressor rotation has been verified to be correct.
 The supply sheaves are properly aligned, and the supply fan belt is properly tensioned.
 Fan wheels and propellers checked for location in housing/orifice, and setscrew is tight.
 The supply fan and exhaust fans (if equipped) are rotating in the correct direction.
 The supply fan and exhaust fan bearings (if equipped) have been greased prior to start-up.
 All air terminal units (VAV or VVT boxes), fire dampers, and volume dampers are confirmed to be open or at their maximum
balanced condition.
 No construction, remodeling, or major renovation is occurring in the space or around the unit that could negatively impact
unit operation.
 No safety conditions exist that would prevent start-up or operation of the equipment. The OAT, RAT, and SAT sensors are
reading properly and either do not need to be relocated or have been relocated.
UNIT START-UP CHECKLIST (COOLING)
CL-5
Serial Number____________________________________
Unit Tag/Name ___________________________________
Start-up Date_____________________________________