86 WGS 130A to 190A OM WGS-5
Operation After Start
When the condenser pump is in the RUN state, the valve output shall be controlled in one of
two modes as specified by the Valve/VFD Control setpoint. The controlled parameter shall
be the condenser entering water temperature. When the desired output signal varies from 0
to 100%, the output voltage shall vary as shown below.
0 to 10 VDC (Valve Type = NC)
10 to 0 VDC (Valve Type = NO)
SET TOWER SPs (5)
Valve SP=XXX
Valve DB=XX.X
Valve SP is the minimum tower water temperature acceptable, default is 65F.
Valve DB is the dead-band in degrees, default is 2.0F.
SET TOWER SPs (6)
Valve Start Position
Min= XXX% @XXX
Max= XXX% @XXX
The ValveStart position is the position of the valve when the unit starts. Default for
minimum start position is 0%, and 100% for maximum position.
SET TOWER SPs (7)
Valve Control Range
Min= XXX%
Max= XXX%
Defaults are 10% minimum and 90% maximum.
SET TOWER SPs (8)
PD Control Loop
Error Gain=XX
Slope Gain=XX
Defaults are 25 for both error and slope.
Screen Definitions – TEST
TEST UNIT (1)
Alarm Out=Off
Evap Pump 1= Off
Evap Pump 2= Off
TEST UNIT (2)
Cond Pump 1= Off
Cond Pump 1= Off
TEST UNIT (3)
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