valent VX Series, Installation, Operation And Maintenance Manual

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Dedicated Outdoor Air Unit 25
Start-Up Checklist - Packaged Direct Expansion (PDX)
Compressor 1 Compressor 2 Compressor 3 Compressor 4
L1 Amps Amps Amps Amps
L2 Amps Amps Amps Amps
L3 Amps Amps Amps Amps
Crankcase Heater
Not present on inverter compressor
Amps Amps Amps Amps
Superheat
(Models VX/VXE-112, -212, and -311)
Should be between 8º and 12ºF
Deg. F Deg. F Deg. F Deg. F
Subcooling
(Models VX/VXE-112, -212, and -311)
Should be between 8º and 12ºF
Deg. F Deg. F Deg. F Deg. F
Superheat
(Models VX/VXE-352)
Should be between 10º and 20ºF (0% reheat)
or should be between 10º and 30ºF (100%
reheat)
Deg. F Deg. F Deg. F Deg. F
Subcooling
(Models VX/VXE-352)
Should be between 10º and 15ºF (0% reheat)
or should be between 2º and 10ºF (100%
reheat)
Deg. F Deg. F Deg. F Deg. F
Discharge Pressure
Should be between 300 and 500 PSIG
PSIG PSIG PSIG PSIG
Suction Line Pressure
Should be between 100 and 135 PSIG
PSIG PSIG PSIG PSIG
Liquid Line Temp. Deg. F Deg. F Deg. F Deg. F
Suction Line Temp. Deg. F Deg. F Deg. F Deg. F
Moisture Indicating Sight Glass
Liquid Visible Yes / No Yes / No Yes / No Yes / No
Color of Center Dot Purple / Pink Purple / Pink Purple / Pink Purple / Pink
Hot Gas Bypass Operational Yes / No / NA NA NA NA
Start-Up Checklist - Packaged Direct Expansion (DX)