Geostar ASTON Series Installation Manual page 20

ASTON & ASTON ADVANCED DUAL-CAPACITY OUTDOOR SPLIT SERIES INSTALLATION MANUAL
The Aurora 'Base' Control System cont.
Aurora 'Base' Control
NOTE: Refer to the Aurora Base Control Application and
Troubleshooting Guide and the Instruction Guide: Aurora
Interface and Diagnostics (AID) Tool for additional information.
Control Features
Software ABC Geo-Split Version 3.0
Single or Dual Capacity Compressors
Either single or dual capacity compressors can be operated.
Other Control Features
• Random start at power up
• Anti-short cycle protection
• High and low pressure cutouts
• Loss of charge
• Water coil freeze detection
• Over/under voltage protection
• Load shed
• Dehumidification (where applicable)
• Emergency shutdown
• Hot gas reheat operation (where applicable)
• Diagnostic LED
• Test mode push button switch
• Two auxiliary electric heat outputs
• Alarm output
• Accessory output with N.O. and N.C.
• Modbus communication (primary)
• Modbus communication (secondary)
Field Selectable Options via Hardware
DIP Switch (SW1)
– Test/Configuration Button (See SW1
Operation Table)
Test Mode
The control is placed in the test mode by holding the push
button switch SW1 for 2 - 5 seconds. In test mode most of
the control timings will be shortened by a factor of sixteen
(16). LED3 (green) will flash at 1 second on and 1 second
off. Additionally, when entering test mode LED1 (red) will
flash the last lockout one time. Test mode will automatically
time out after 30 minutes. Test mode can be exited by
pressing and holding the SW1 button for 2 to 5 seconds or
by cycling the power. NOTE: Test mode will automatically
be exited after 30 minutes.
Reset Configuration Mode
The control is placed in reset configuration mode by
holding the push button switch SW1 for 50 to 60 seconds.
This will reset all configuration settings and the EEPROM
back to the factory default settings. LED3 (green) will turn
off when entering reset configuration mode. Once LED3
(green) turns off, release SW1 and the control will reset.
DIP Switch (SW2)
SW2-1 FP1 Selection – Low water coil temperature limit
setting for freeze detection. On = 30°F; Off = 15°F.
SW2-2 FP2 Selection – On = 30°F; Off = N/A
SW2-3 RV – O/B - thermostat type. Heat pump
thermostats with "O" output in cooling or "B"
output in Heating can be selected. On = O; Off = B.
SW2-4 Access Relay Operation (P2)
and 2-5
Access Relay Operation
Cycle with Blower
Cycle with Compressor
Water Valve Slow Opening
Cycle with Comm. T-stat Hum Cmd
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SW2-4 SW2-5
ON ON
OFF OFF
ON OFF
OFF ON