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AFFINITY SINGLE STAGE HYDRONIC INSTALLATION MANUAL
The Aurora Base Control System cont.
Aurora 'Base' Control LED Displays
These three LEDs display the status, configuration, and
fault codes for the control. These can also be read in plain
English via the Aurora AID Tool.
Status LED (LED3, Green)
Description of Operation
Normal Mode
Control is Non-functional
Test Mode
Lockout Active
Dehumidification Mode
(Future Use)
(Future Use)
Load Shed
ESD
(Future Use)
Fault LED (LED1, Red)
Red Fault LED
Normal - No Faults
Fault - Input
Fault - High Pressure
Fault - Low Pressure
Fault - Freeze Detection FP2
Fault - Freeze Detection FP1
Fault - Condensate Overflow
Fault - Over/Under Voltage
Fault - FP1 & FP2 Sensor Error
NOTE: All codes >11 use long flash for tens digit and short flash for the ones
digit. 20, 30, 40, 50, etc. are skipped.
Aurora Interface and Diagnostics (AID) Tool
The Aurora Interface and
Diagnostics (AID) Tool is
a device that is a member
of the Aurora network.
The AID Tool is used to
troubleshoot equipment
which uses the Aurora
control via Modbus RTU
communication. The AID
Tool provides diagnostics,
fault management, ECM
setup, and system configuration capabilities to the Aurora
family of controls. An AID Tool is recommended, although
not required, for ECM airflow settings. The AID Tool simply
plugs into the exterior of the cabinet in the AID Tool port.
Fault LED, Green
ON
OFF
Slow Flash
Fast Flash
Flash Code 2
Flash Code 3
Flash Code 4
Flash Code 5
Flash Code 6
Flash Code 7
LED Flash
Reset/
Lockout
Code*
Remove
OFF
–
1
No
Auto
2
Yes
Hard or Soft
3
Yes
Hard or Soft
4
Yes
Hard or Soft
5
Yes
Hard or Soft
7
Yes
Hard or Soft
8
No
Auto
11
Yes
Hard or Soft
ABC Control Board Layout
ECM PWM
HP
P4
P13
HP
LP
LP
FP2
FP2
FP1
SW1 Test
FP1
REV
REV
RV – K1
CC2
CC – K2
G
P5
CC Hi – K3
LO
HI
CCG
CC
Fan – K4
FG
F
R
Alarm – K5
F
CC
Acc – K6
G
Y1
JW2 -
Alarm
Field Connections
P2
30
Off
On
LED1
LED2
FP1 – 15
F/30
F
o
o
1
R
FP2 – 15
F/30
F
Y
o
o
2
RV – B/O
3
Faul t
Config
ACC – Dip 4
4
ACC – Dip 5
5
LED3
CC – Dual/Single
6
G
L – Pulse/Continuous
7
Status
Reheat/Normal
8
SW2
AURORA BASE
CONTROL™
Com1
G
P11
Com2
G
P9
Factory Fan Connection
Field Connections
P1
EH1
P3
EH2
C
EH1
C
CO
N/A
P6
(+)
(-)
R
C
P7
P8
R
R
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Table of Contents
Troubleshooting
