Airedale DeltaChill FreeCool 110kW - 1080kW - Manual (Page 28)

Chillers
28
Introduction
Chiller Technical Manual 7267818 V1.4.0_04_2014
DeltaChill™ Air Cooled and FreeCool
Remote Set Point Adjust
Allows the chilled water set point to be adjusted via an external 0-10V signal or Digital Input.
Compressor Hours Run
Displays hours run of each compressor.
Password Protection
The control system integrity can be maintained by restricting access with a password PIN number.
CAUTION IMPORTANT:
To change the PIN number; please contact Airedale at time of order with the preferred 4 digit number.
Ultracap Uninterrupted Power Supply
The Ultracap module is an optional external backup device for the EVD Evolution used to close the valve in the event
of mains power failures. The module guarantees temporary power to the EVD Evolution in the event of power failures,
for enough time to immediately close the connected electronic valve. It avoids the need to install a solenoid valve in the
refrigerant circuit or use the battery backup module.
Ultracap storage capacitors (EDLC = Electric Double Layer
Capacitor), which are recharged independently by the
module. Ultracap capacitors ensure reliability in terms of
much longer component life than a module made with lead
batteries: the life of the Ultracap module is at least 10 years.
In addition, not using lead batteries also means no special
precautions are required regarding safety and pollution.