Trane R Series Installation Operation & Maintenance page 32

Figure 15 Suggested Piping for Typical RTWA Evaporator
32
Installation - Mechanical
CAUTION
Equipment Damage!
To prevent damage to chilled water components, do not allow
evaporator pressure (maximum working pressure) to exceed 215
psig.
Provide shutoff valves in lines to the gauges to isolate them from the system
when they are not in use. Use rubber vibration eliminators to prevent
vibration transmission through the water lines.
If desired, install thermometers in the lines to monitor entering and leaving
water temperatures. Install a balancing valve in the leaving water line to
control water flow balance. Install shutoff valves on both the entering and
leaving water lines so that the evaporator can be isolated for service.
A pipe strainer must be installed in the entering water line to prevent water-
borne debris from entering the evaporator.
Evaporator Piping Components
"Piping components" include all devices and controls used to provide proper
water system operation and unit operating safety. These components and
their general locations are given below.
Entering Chilled Water Piping
• Air vents (to bleed air from system).
• Water pressure gauges with shutoff valves.
• Vibration eliminators.
• Shutoff (isolation) valves.
• Thermometers (if desired).
• Cleanout tees.
• Relief valve.
• Pipe strainer.
RLC-SVX07A-EN