Carrier 38AE040 - Start-Up Checklist; Pre-Start-Up Checks; Start-Up Measurements and Verification

18
TART-UP CHECKLIST
A. Preliminary Information
Outdoor: model no._______________________ Serial no.___________
Indoor: air handler manufacturer____________________________
Model no._____________________________ Serial no.__________
Additional accessories_________________________________________
B. Pre-Start-Up
Outdoor Unit
Is there any shipping damage? ____________ (y/n)_________________
If so, where: ______________________________________________________
Will this damage prevent unit start-up? (y/n)________________
Check power suppy. Does it agree with unit? (y/n)_____________
Has the ground wire been connected? (y/n)______________
Has the circuit protectionbeen sized and installed properly? (y/n)_______
Are the power wires to the unit sized and installed properly? (y/n)______
Have compressor holddown bolts been loosened (snubber washers are snug,but not tight)? (y/n)___
Controls
Are thermostat and indoor fan control wiring
Connections made and checked? (y/n)________________
Are all wiring terminals (including main power supply ) tight? (y/n) ___________________
Has crankcase heater been energized for 24 hours? (y/n) _____
Piping
Are loquid line solenoid valves located at the evaporator coils as required? (y/n) _______________
Have leak checks been made at compressor, condenser, evaporator(s), Txvs (thermostatic expansion
valves), solenoid valves, filter driers, and fusible plugs with a leak detector ? (y/n) ___________________
Locate, repair, and report any leaks.___________________________
Have all compressor service valves been fully opened (backseated)? (y/n) ___________________
Have liquid line service valves been opened? (y/n) ____________
Is the oil level in each compressor crankcase visible in the compressor sight glasses? (y/n) ____________
Check Voltage Imbalance
Line-to-line volts: ab____v ac____v bc_____v
(ab+ac+bc)/3 = average voltage = _____v
Maximum deviation from average voltage=_______v
Voltage imbalance=100 x (max deviation)/(average voltage)=________%
If over 2% voltage imbalance,do not attempt to start system !
Call local Power Company for assistance.
C. Start-Up
Check evaporator fan speed and record.___________
Check condenser fan speed and record.___________
After at least 10 minutes running time ,record the following measurements:
Oil pressure _______________________
Suction pressure _____________________
Suction line temp __________________________-
Discharge pressure ________________________
Entering condenser air temp _____________________
Leaving condenser air temp _______________________
evap entering-air db (dry bulb) temp __________________
evap entering air wb (wet bulb) temp ___________________
evap leaving air db temp ______________________
evap leaving air wb temp _______________________
Compressor amps (L1/L2/L3) __________/______________/____________
Check the compressor oil level sight glasses; are the sight glasses showing oil level in view? (y/n)____________
Notes:
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14-15th Fl’, 1858/63-74 Bangna-Trad Road Km. 4.5, Bangna Bnagkok 10260 Thailand Tel. 0-2762-9222 Fax: 0-2751-4778
38AE_AF_ENG/10/2015
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