Liquid Temp. Control - York YMAA 0045 Installation Manual

FORM NO.: 6U6K-B01E-NB-EN
temperature changes toward setpoint rapidly, the compressor
will not be allowed to load even if current temperature is still
not achieving the setpoint.
Additional compressors will be energized at a rate of once
every 40 seconds if the liquid temperature remains in "Load"
region. The fixed speed compressors will run at least 3 minutes
before unload.
In cooling mode, the leaving chilled liquid setpoint is
programmable from 5 °C to 20 °C in water chilling mode and
from -10 °C to 20 °C in glycol chilling mode. In heating mode,
the leaving hot liquid setpoint is programmable from 20 °C to
55 °C.
JOHNSON CONTROLS
Cooke Industries - Phone: +64 9 579 2185
In cooling mode, the return chilled liquid setpoint is
programmable from 10 °C to 25 °C in water chilling mode and
from -7 °C to 25 °C in glycol chilling mode. In heating mode,
the leaving hot liquid setpoint is programmable from 15 °C to
50 °C.
Email: sales@cookeindustries.co.nz
SECTION 9 – UNIT OPERATION
Return Chilled Liquid Control MUST only be used
when constant chilled liquid flow is ensured.
The range MUST always be programmed to equal
the temperature drop across the evaporator when the
chiller is "fully loaded". Otherwise, chilled liquid
temperature will over or under shoot. Variable flow
must never be used in return chilled liquid mode.
Web: www.cookeindustries.co.nz
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