Specifications
22 Catalog WSC/WDC-4
Table 1, Typical Data Point Availability
Typical Data Points
1
(W = Write, R = Read)
Active Setpoint R Cond EWT R Evap Water Pump Status R
Actual Capacity R Cond Flow Switch Status R Heat Recovery EWT R
Capacity Limit Output R Cond LWT R Heat Recovery LWT R
Capacity Limit Setpoint W Cond Pump Run Hours R Heat Setpoint W
Chiller Enable W Cond Refrigerant Pressure R
2
Ice Setpoint W
Chiller Limited R Cond Sat. Refrigerant Temp R
2
Liquid Line Refrigerant Pressure
Chiller Local/Remote R Cond Water Pump Status R Liquid Line Refrigerant Temp R
Chiller Mode Output R Cool Setpoint W Maximum Send Time W
Chiller Mode Setpoint W Current Alarm R Minimum Send Time W
Chiller On/Off R Default Values W Network Clear Alarm W
Chiller Status R Evap EWT R Oil Feed Pressure R
Compressor Discharge Temp R Evap Flow Switch Status R Oil Feed Temp R
Compressor Percent RLA R Evap LWT for Unit R Oil Sump Pressure R
Compressor Run Hours R Evap LWT for Compressor R Oil Sump Temp R
Compressor Select W Evap Pump Run Hours R Outdoor Air Temp
Compressor Starts R Evap Refrigerant Pressure R2 Pump Select W
Compressor Suction Line Temp R Evap Sat. Refrigerant Temp R2 Run Enabled R
Notes:
1. Data points available are dependent upon options selected
2. Per compressor
Figure 7, Sample System Architecture
Building Automation
System of Your Choice!
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MicroTech II Centrifugal Chiller
Field Level Devices by Others
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System
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Panel
Lighting
Control Panel
by Others
MicroTech II
Air Cooled Chiller
Open standard
protocol network
such as LonTalk,
Modbus or BACnet.










