Trane CXAJ series Installation, Operation And Maintenance Manual page 12

Unit Installation
Blind flange
The water pipe interface blind flange necessary for the installation of the end unit is show in the
diagram below:
Water pipeline
• Clean all chilled water pipelines.
• connect the evaporator pipeline.
• Exhaust the air in the chilled water system at the highest point of this system.
• Install the pressure gauge, the thermometer and the valve in the water inlet and outlet pipes.
• Install the filter in the water inlet pipe of the evaporator.
• Install the balance valve and the flow switch at the water outlet.
• If the washing the pipe with acid solvent, a temporary by-pass pipe shall be arranged beside
• Never use the untreated or improperly treated system water for fear of damaging the
• Refer to Connection Diagram for Water System for the installation location of each typical
• To avoid damaging the unit, do not reversely install the system water pipe. The water inlet
• The exhaust valve shall be arranged at the highest point of the pipeline in order to exhaust
• The water pressure of the evaporator shall not be more than 0.5 MPa (i.e. maximum working
• Before the final pipe connection of the unit, all external water supply piping systems shall
Connection of water pipeline
The circulating water pump must be installed on the water inlet pipe of the evaporator to ensure
that the internal pressure of the evaporator is positive pressure. Refer to
12
Cautions
the unit for fear of damaging the evaporator.
machine.
accessory on the water supply pipeline of the unit. The pipe components may vary with the
locations of connectors and water source.
pipe must be connected to the water inlet connector marked with "water inlet". The water
outlet pipe must be connected to the water outlet connector marked with "water outlet".
the air in the chilled water system.
pressure) for fear of damaging the parts and components on the chilled water side of the
unit.
be thoroughly flushed. It is strictly prohibited to be mixed with sundry in the piping system,
otherwise our company will not be responsible for the consequences.
Name: blind flange
Material: No.20
Specification: 5", PN1.6
20
Figure 1 for the installation