Trane CGAM - Evaporator Piping Components; Entering Chilled Water Piping

CG-SVX17D-EN 53
Installation - Mechanical
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.
Evaporator Piping Components
Piping components include all devices and controls used to provide proper water system operation
and unit operating safety. See Figure 42, p. 53. These components are listed 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)
• Relief valve
Figure 42. Water piping components
B
UNIT
CUSTOMER PIPING
A
2
1
2
4
3
5
3
5
6
6
7
5
8
Table 22. Water piping components
Item Description Item Description
1 Bypass Valve Pi Gauge
2 Isolation Valves FT Water Flow Switch
3 Vibration Eliminators T1 Evap Water Inlet Temp Sensor
4 Evaporator Heat Exchanger T2 Evap Water Outlet Temp Sensor
5 Water Heater A Isolate unit for initial water loop cleaning
6 Valve for Pressure Point
B
Brazed plate differential pressure gauge and piping not supplied.
Must account for water head height difference when calculating
brazed plate pressure differential.
7Strainer