Instruction manual

McQuay OM 920 15
Keypad/Display Menu Structure
Unit State is a status only item which indicates the state of operation in which the unit is
currently operating.
Unit Status is a status only item which indicates the current operating status.
Ctrl Mode is an adjustable item which allows the unit to be set for off, auto heating/cooling
operation, cooling only, heating only, and fan only.
Clg Status is a status only item which indicates whether or not mechanical cooling is currently
allowed. If cooling is disabled, the reason is indicated.
Htg Status is a status only item which indicates whether or not heating is currently allowed. If
heating is disabled, the reason is indicated.
Econo Status is a status only item which indicates whether or not the economizer is currently
enabled. If economizer is enabled, the reason is indicated.
Clg Capacity is a status only item which indicates the percentage of the unit maximum
cooling capacity currently operating.
Htg Capacity is a status only item which indicates the percentage of the unit maximum
heating capacity currently operating.
SAF Speed is a status only item which indicates the current speed of the supply air fan.
RF/EF Speed is a status only item which indicates the current speed of the return fan/exhaust
air fans.
OAD/Econo Cap is a status only item which indicates the percentage that the outdoor
damper/waterside economizer valve is currently open.
Rel Humidity is a status only item that displays the current relative humidity reading from the
optional humidity sensor.
Emerg Mode is an adjustable item which indicates if the unit was shut down in an emergency
situation via a network command.
Net App Mode is a network adjustable item which indicates that the unit is set for network
off, cooling only, heating only, fan only or auto heating/cooling operation via a network signal.
This item has no affect on the unit operation unless the Ctrl Mode item is set to “Auto.”