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Service Menu Parameters
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Figure 84 Options setup parameters - Page 3
CW Flush—This parameter selects how many hours between each chill water coil flush cycle. The
default is every 24 hours. Reducing this number will increase the number of coil flushes.
Freecooling Flush—This parameter selects how many hours between each freecooling coil flush
cycle. The default is every 24 hours. Reducing this number will increase the number of coil flushes.
Hot Water Flush—This parameter selects how many hours between each hotl water coil flush cycle.
The default is every 24 hours. Reducing this number will increase the number of coil flushes.
Ball Valve Setpoint Offset—The parameter adjusts the operating compressor discharge pressure
by changing the targeted range of control.
Heaters Outputs as—(HPM only) On units with no heaters, this parameter allows the heater digital
output to be activated based on the selected event.
CW Valve Control—For units equipped with dual motorized ball valves this parameter allows the
valves to be set to operate in parallel, alternate or cascade. Parallel is the default selection and oper-
ates the valves at the same opening based on the call for cooling.
Main Valve—If CW Valve Control is set for “Alternate or Cascade” then this parameter selects which
valve is the lead valve.
Auto Valve Rotation—If CW Valve Control is set for “Alternate or Cascade” then this parameter
allows the valves to be rotated based on the Valve Rotation Hour.
Valve Rotation Hour—If Auto Valve Rotation is enabled then this parameter determines the time
between the valve rotations.
Dehum Operation—For units equipped with dual motorized ball valves this parameter selects the
dehumidification operation of the valves.