ACS HE Series, Operation And Instruction Manual

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HE Series Central Chillers • 882.03862.00 • 12/02/2021
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Figure 2: Typical HE Water Cooled Condenser Connections
4-10 Checking Motor Direction
All of our central chillers have their motor rotations properly phased at the factory. If compressors,
pumps, or fans are running in reverse rotation, disconnect and lock out the power source and reverse
any two power leads into the chiller disconnect switch.
Caution! Do not switch leads at the motors, motor starters, or contactors.
Three-Phase Compressors
Scroll compressors are directionally-dependent and compress in one rotational direction. Reversing
rotation direction results in an elevated sound level and a substantially-reduced current draw.
Caution! Do not allow the compressor to run backwards for any length of time. Doing so will
result in compressor damage.
4-11 Tank Temperature Considerations
Warning! Operating the tank temperature setpoint below 50°F (10°C) without the
proper amount of glycol for freeze protection could result in a damaged
evaporator. ACS Group does not warrant the freeze up of the evaporator
under any circumstances.
Condenser Water
Condenser Water In