HRSC - D
Remote Condenser Packaged Chiller
Installation, Operation &
Maintenance Instructions
Table of Contents
Description
Page No.
Vibration Isolation .............................................................................................................. 2
Water Piping ............................................................................................................. 2, 3 & 4
Refrigerant Piping ............................................................................................................... 5
Electrical Connections ......................................................................................................... 5
Operation ..................................................................................................................... 5 & 6
Maintenance ....................................................................................................................... 6
Control Settings ............................................................................................................ 8 & 9
Sequence of Operation ............................................................................................... 9 & 10
Electrical Data (60 Hz) ............................................................................................... 17 & 18
Typical Power Wiring ......................................................................................................... 19
Typical Control Wiring (Electro-Mechanical ....................................................................... 20
Typical Piping Schematic ................................................................................................... 23
Capacity Control ............................................................................................................... 24
Physical Data ..................................................................................................................... 24
Evaporator Pressure Drop ................................................................................................. 25
Troubleshooting Guide ..................................................................................................... 30
Start-up Check List ............................................................................................................ 31
FORM 5504
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Questions and answers
If the chiller compressors is not able to cut out and the targets is still up to 100percent what is the course of it
The Dunham-Bush HRSC - D chiller compressor may not cut out while the targets remain at 100 percent if the leaving chilled water temperature (TLW) stays above the setpoint by 20°F or more. The system increases or maintains target percent capacity based on how far TLW is from the setpoint and how fast it is approaching. If TLW is not within the temperature deadband or is rising, the compressor will continue running at high capacity.
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