Technical Manual Downflow - Airedale International Air Conditioning
Technical Manual Downflow - Airedale International Air Conditioning
Technical Manual Downflow - Airedale International Air Conditioning
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GENERAL<br />
18<br />
-DF<br />
STANDARD FEATURES<br />
Evaporator Fan Hours<br />
Run Log & Reset<br />
Head Pressure Control<br />
and Condenser Fan<br />
Speed Controller<br />
Evaporator Fan Speed<br />
Controller<br />
Sizes 6 - 25<br />
Controls<br />
Precision <strong>Air</strong> <strong>Conditioning</strong><br />
<strong>Technical</strong> <strong>Manual</strong> : 6259014 v1.3.0 02_2013<br />
Precision <strong>Air</strong> <strong>Conditioning</strong><br />
Allows the user to monitor the running times of the evaporator fans and reset<br />
after maintenance.<br />
Each refrigerant circuit (TEV or EEV) is fitted with condenser pressure transducers and a<br />
modulating condenser fan speed controller to allow the designed head pressure to be<br />
monitored and maintained under varying ambient conditions. Condenser fan speed<br />
control settings are input via the display keypad.<br />
Evaporator fan speed control is easily set via the display keypad and can be<br />
incrementally increased or decreased to meet on site airflow and external static<br />
pressure requirements.<br />
Filter Change Alarm Filter change is managed by the <strong>Air</strong>eTronix software, and is based on fan(s) hours run<br />
with an alarm being generated when the pre-set run time limit has been exceeded. The<br />
set-point value can be adjusted to suit each application and is factory set to 2000 hours.<br />
LPHW Frost Protection<br />
(DX units with LPHW<br />
option)<br />
OPTIONAL EXTRAS<br />
Upgraded Controller<br />
Sizes 26 - 60<br />
The coil temperature sensor is mounted on the DX coil and has a fixed 3°C low limit<br />
setting to disable DX cooling.<br />
The microprocessor controller is upgraded when the Filter Change Switch<br />
option is selected, refer to Indoor Unit, Optional Extras - General, Filter Change Switch.<br />
However, the controller can also be upgraded to provide for applications requiring specific<br />
alarm handling such as; filter dirty, fire, flood, phase failure, critical / non critical alarms<br />
and the ability to disable heating and humidification. Please contact <strong><strong>Air</strong>edale</strong> for details.<br />
Real Time Clock A real time clock card can be fitted to the microprocessor to provide date and<br />
time stamping on alarms. Occupied and unoccupied set points can also be configured for<br />
temperature, humidity and head pressure control settings.<br />
This option is enabled by the inclusion of a clock card within the microprocessor, supplied<br />
as standard with this option.<br />
Networking A Local Area Network ( ) can be used to connect upto 6 units to offer<br />
intercommunication and Duty/Standby control. This also allows the connection of<br />
computers, printers and modems on the same communications ring. For further details,<br />
please contact <strong><strong>Air</strong>edale</strong> Controls.<br />
CAUTION<br />
When adding to an existing network, please consult <strong><strong>Air</strong>edale</strong> to ensure strategy<br />
compatibility.
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