115JOHNSON CONTROLS
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 xed 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.
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.
Return Chilled Liquid Control MUST only be used
when constant chilled liquid ow 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 ow
must never be used in return chilled liquid mode.
SECTION 9 – UNIT OPERATION
Cooke Industries - Phone: +64 9 579 2185 Email: sales@cookeindustries.co.nz Web: www.cookeindustries.co.nz
To Next Page
Loading...
Need help?
General
