OMM 1130-2 61
See page 13 for an explanation of compressor staging.
WGZ Units Only TGZ Units Only (R134a)
Max Pulldn=X.X
F/min
Evap Recirc= XXX sec
Evap Pump = #1 Only
Max Pulldn=X.X
F/min
Evap Recirc= XXX sec
Evap Pump = #1 Only
Evap Pump choices are; #1 Only, #2 Only, Auto, #1 Primary, #2 Primary.
Water-Cooled = ON Water-Cooled = OFF
TGZ Units (R134a)
Water Cooled = On is the setting for units with on-board water-cooled condensers. Pump choices are;
#1 Only, #2 Only, Auto, #1 Primary, #2 Primary.
WaterCooled = OFF is used for units with remote condensers, usually air cooled.
H.G. Delay, hot gas bypass delay, keeps the hot gas solenoid valve closed when the first compressor on a
circuit starts. This delay allows sufficient condenser pressure to build up.