Airedale Ultima Compact Condensing Unit 30kW - 450kW - Manual (Page 9)

Condensing Units ULTIMA COMPACT
Condensers & Condensing Units
9
Technical Manual : Part No 904-047 V1.4.0_02_2013
Controls
GENERAL
DESCRIPTION The microprocessor controller offers powerful analogue and digital control to
meet a wide range of monitoring and control features including a real time clock and
Industry standard communication port and network connections.
The controller’s inbuilt display is used for viewing the unit operating status and making
adjustments to control parameters by allowing the operator access to a series of
display pages.
Also featured are a visual alarm and the facility to adjust and display control settings by
local operator for information and control.
DISPLAY/KEYPAD 5 3 6
2 1
4
08:44 13/05/02 Mst
Remote 0-10V Input
Signal Voltage 05.6V
Unit ON
7
Esc Prg
1 UP/DOWN KEYS
To change Adjustable Fields & Scrolls
up & down available Menus
2 ENTER
Selects Menus & Moves Cursor to
Adjustable Fields Green LED
3 ESC
Green LED lit when Operating Page
displayed, Returns to Operating Page
Screen when pressed
4 PROGRAM
Opens the Available Menus
5 ALARM
Red LED Indicates Alarm Present
6 4 ROW LCD DISPLAY
7 CURSOR (FLASHING): Top Left
Position = “HOME” Indicates adjustable
Fields
CONTROL
MANAGEMENT Airedale recognises that all applications differ and have provided 4 of the most common
to select via the microprocessor:
External 0-10V Signal The compressor operation is controlled by the microprocessor in response to an external
0-10V analogue signal.
Suction Pressure
Monitoring The compressor operation is controlled by the microprocessor in response to changes in
the measured suction pressure.
Remote Space
Temperature Sensor The compressor operation is controlled by the microprocessor in response to changes in
return air temperature, measured via a remote sensor (supplied loose).
Remote Digital Inputs Offering the user complete control of the cooling provided by the unit, via a number (1-6)
of digital signals (corresponding to the number of stages of cooling).
FEATURES
Unit Remote ON/OFF Disables/Enables the condensing unit remotely.
Compressor Anti Cycle
Control Automatic via the Microprocessor.
Compressor Load Limit Limits the condensing pressure by unloading above 24barg.
Limits the evaporating pressure by unloading at the minimum pressure setpoint.
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.