Trane AquaStream 2 CGWN Series Installation Operation & Maintenance page 12

Installation
Figure 1 - Connection of units with hydraulic module - Evaporator and condenser sides
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5
4
Figure 2 - Connection of units without hydraulic module - Evaporator and condenser
sides
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2
7
6
3
5
4
8
9
1 = Pressure gauges: show entering and leaving water pressure
2 = Balancing valve: adjusts water flow.
3 = Air purge allows to remove the air from the water circuit during fill up.
4 = Stop valves: isolate chillers and water circuiting pump during maintenance
operations.
5 = Thermometers: indicate chilled water entering and leaving temperatures.
6 = Expansion compensators: avoid mechanical stress between chiller and piping
installation.
7 = Stop valve located on the outlet connection: used to measure the water pressure
inlet or outlet of evaporator.
8 = Strainer: avoid to get heat exchangers dirty. All installation must be equipped
with efficient strainer in order that only clean water enters into exchanger.
If there is no strainer, reserve will be formulated by the Trane technician at the start-
up of the unit. The strainer used must be able to stop all particles with a diameter
greater than 1 mm.
9 = Draining: used as the draining the plate heat exchanger.
10 = Do not start the unit with low water volume or not enough pressurized circuit.
Note: A pressure switch device to detect lack of water is not included in the
pump package. Installation of this type of device is highly recommended to
avoid sealing damage due to operation of pump without enough water.
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