3-10 Automatic Water Make-Up Option

The chiller may be connected to an automatic make-up system if the optional package (pipe fittings, solenoid valve and 1/2” NPT city water make-up connection) is factory installed.

Note:

When the unit is selected with the optional, closed stainless steel tank, a

 

pressure reducing valve is added to the automatic water make-up option. This

 

valve is set to be full open at 5 psig (0.3 bar).

If the automatic make-up system is connected to a city water system, make provisions to prevent backflow contamination. Install an approved backflow preventer in accordance with local codes.

Caution! Adding straight city water into a glycol/water mixture dilutes the solution and eventually leads to system freeze-up. Damage from freeze-up is not covered by the warranty.

To prevent system freeze-up in automatic make-up applications, we recommend using either a chemical feeder or make-up reservoir to replenish glycol. Contact the sales department for more information about these configurations.

3-11 Initial Start-Up

Check the shipping papers against the serial tag to be sure chiller size, type and voltage is correct for the process that will be controlled. Portable chillers are built with a voltage specific compressor and cannot be re-wired for an alternate voltage.

Check the transformer primary voltage connections to be sure they are configured for the electrical power you are using. The voltage at the main power connection must read within plus or minus ten percent (±10%) of the voltage listed on the serial tag. Electrical connections must conform to all applicable codes.

GP Series Portable Chillers

Chapter 3: Installation

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Sterling 882.93092.01 manual Automatic Water Make-Up Option, Initial Start-Up

882.93092.01 specifications

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