York eco YCAS Series Manual page 206

Micro Panel Contents
Compressor Loading
Loading Limiting
206
Compressor Unloading and Shutdown Sequence
A lag compressor may be shut down
before it is fully unloaded to avoid a
Chiller fault on a Low Water Tempera-
ture cutout under the following con-
ditions: a) if chilled liquid temperature
falls below the low end of the Control
Range (CR) for more than 37 seconds,
b) if chilled liquid temperature drops
more than CR/4 below the low limit of
the Control Range.
The lead compressor may be shut
down before it is fully unloaded to
avoid a Chiller Fault on Low Water
Temperature under the following con-
ditions: a) if chilled liquid temperature
drops 2°F below the low limit of the
Control Range (CR), b) if chilled liq-
uid temperature drops more than CR/
2 below the low limit of the Control
Range.