Sterlco GP Series 20-60 HP Packaged Chillers - Manual (Page 20)

GP Series Portable Chillers Chapter 3: Installation 20 of 93
3-3 Process Water Connections
All of our portable chillers have two chilled water connections. The chilled water supply,
labeled “To Process” is the outlet for the chilled water leading to the process being cooled.
The chilled water return, labeled “From Process” is the inlet leading from the process back
into the chiller to be cooled and re-circulated.
Figure 2: Typical GP20-50 Air Cooled Process Piping Connections
All external chilled water connections should be run full size to the process. Flow and
pressure information is available in the Appendix. The largest possible openings and
passages should be provided for the flow of chilled water through platens, dies, molds, or
other pieces of equipment. Flow control valves are not supplied, but should be added to the
system to adjust flow and pressure to the process and to isolate the chiller from the process if
necessary.
Be sure to reduce external pressure drop as much as possible by generously
sizing piping and tooling water passageways.
3-4 Bypass Valve Considerations
Our portable chillers have an internal manual bypass valve. If the flow is stopped to the
process while the chiller is running, the factory-set bypass valve allows a small amount of
water to flow through the chiller. This action allows the chiller to keep functioning while the
flow is stopped to process. The bypass valve is not intended to provide continuous full
bypass flow.
Do not attempt to adjust or otherwise tamper with the internal bypass. Your
warranty will be voided. !