OM 200MICRO 37
Port A Baud= This value defines the communication baud rate for port A. This is critical if there is a
network. (Port A baud rate must be set to 9600 on the master unit.)
Low Temperature= This value selects the operational mode of the unit. If 'ice' is selected, the
MicroTech default values have to be reset to match the system requirements for an "Ice" application.
Master/Slave= This defines the network relationship between the two MicroTechs. For lead/lag
operation, one controller must be set as the master and the other controller must be set as the salve.
The master unit provides the control setpoints as long as the network is active. Menu 23 will be
available only on the master unit.
Evap Gpm Sensor= 0ptional. This value defines if a flow sensor is present for the MicroTech to
monitor.
Oat Sensor= This value defines if an outside air sensor is present for the MicroTech to monitor and
use in the control decisions.
Evap Full Gpm= This value defines the full flow capabilities of the evaporator flow sensor. The
MicroTech scales the value linearly between 4 and 20 milliamp input or 0 to 10VDC input.
Ambient Lockout= This value determines (according to the outside air temperature) the point that
no chiller operation is needed.
Cond Gpm Sensor= 0ptional. This value defines if a flow sensor is present for the MicroTech to
monitor.
Cond Full Gpm= This value defines the full flow capabilities of the condenser flow sensor. The
MicroTech scales the value linearly between 4 and 20 milliamp input or 0 to 10 VDC input.
Oil Cooler= This value defines the type of oil cooler control valve and the type of control output the
MicroTech will provide. Select solenoid for our standard solenoid and water regulating valve
combination. Select valve for the special optional electric relay type valve used in place of our
standard arrangement.
Refig Leak Sen= 0ptional. This value defines if a refrigerant leak detector is present in the system.
Full Load Amp= This value must match the compressor label value indicating the RLAs of the chiller
unit. Several control and safety functions reference this value.
Ht Recovery Sensor= This value defines if heat recovery sensors are present for the MicroTech to
monitor.
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