Incoming Water Connections

Issue:

Where do the water connections enter the evaporator?

Resolution:

Evaporator water connections typically will enter/exit out the side of the chiller. Water connections can enter from underneath the unit if installed on dunnage or a base that allows sufficient clearance underneath.

The factory doesn't define where or how the water connections enter/exit the chiller. It is the sole discretion of the end user to determine the location of where they'll enter and exit the chiller.

The RTAC, RTAE, RTAF and ACR have similar components i.e. compressors, oil separators, suction and discharge lines that will need to be considered when determining how and where to make the evaporator water connections. Additionally, the type of evaporator (one, two or three pass) will need to be considered as well.  The location of chiller components will change from model to model, and size to size, and the best entry/exit for the water piping is sometimes hindered by the condenser support cross braces. 

RTAC ONLY

One or two of these cross braces may be removed to allow the water piping access if necessary.  The cross braces can only be removed AFTER the chiller is permanently set, however.  They are needed for stabilization during the shipping and lifting of the chiller when additional stresses are placed on the structure by the motion of the chiller.

The CGAM and ACS/ACX ship with a BPHE and the water connections exit the non-control panel end of the chiller and there shouldn't be a need for the water connections to enter the chiller form anywhere but the non-control panel end of the chiller.

Refer to the drawings exportable from TOPSS to help in determining the location of water connections.

RTAC 300 H Three pass evaporator for reference:

RTAF 310, 350, 390 single pass evaporator for reference

ACR 300 two pass evaporator for reference

CGAM 130 H BPHE evaporator for reference:

ACS BPHE evaporator for reference:

Notes:

CGAM water connections will always extend to the non-control panel end of the chiller.

Changes:

Other
Question/Problem/Cause Statements:

• Where do the water connections enter the evaporator?
• Where do the water connections exit the evaporator?
• Can the water connections enter the side of the of chiller?
• Can the water connections exit the side of the chiller?
• Do the water connections enter the side of the chiller?
• Do the water connections exit the side of the chiller?

Facts:

• Air-Cooled Chiller (Pueblo) (RTAC)
  
• Air-Cooled Chiller (Pueblo) (RTAE)
• Air Cooled Chiller (Pueblo) (RTAF)
• Air-Cooled Chiller (Pueblo) (CGAM)
• Air-Cooled Chiller (Pueblo) (ACS)
• Air-Cooled Chiller (Pueblo) (ACX)