Trane CSRA025FAF0, Installation Operation & Maintenance

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CSRA-SVX02A-EN 25
Installation
Water Shutoff Valves
Shutoff valves are provided in the “Supply” and “Return” pipe near the chiller
so the gauge(s), thermostats, sensors, strainer, etc., can be isolated during
service.
Pipe Unions and Connectors
Pipe unions and Victaulic connectors are used to simplify disassembly for
system service.
Thermometers
Temperature gauges are used in the lines to monitor the evaporator entering
and leaving water temperatures.
Balancing Valves
A balancing cock (valve) is installed in the leaving water line. It will be used
to establish a balanced flow.
Note: Both the entering and leaving water lines have shutoff valves installed
to isolate the evaporator for service.
Strainer
A pipe strainer is installed in the water return line (inlet piping to chiller) to
protect the components from entrapped debris.
Chiller Drain
The chiller drain is piped to the outside of the chiller casing with a ball shutoff
valve to facilitate evaporator draining during service or shutdown
procedures.
Chiller Flow Switch
A flow switch, illustrated in Figure 7, is installed to prevent or stop the
compressor operation if the water flow drops off drastically. Refer to unit
schematics for the flow switch electrical interlock connections.
Figure 7 — Optional Flow Switch Illustration