20
CC2
Factory
Fault
ALG
ALM
LS
ES
ACC c
Status
Aurora
TM
Base
Control
RV – K1
CC2
CC – K2
CC Hi – K3
Fan – K4
Alarm – K5
Acc – K6
ACC no
ACC nc
O/B
C
R
LO
G
Y1
Y2
W
DH
3A-Fuse
O/B
C
R
LO
G
Y1
Y2
W
DH
LO
G
HI
CCG
CC
FG
F
R
HP
HP
LP
FP2
FP2
FP1
REV
REV
CFM
PWM
ECM PWM
Factory
Factory Fan Connection
R
R
CC
C
C
R
(-)
(+)
RS 485
EH2
C
EH1
C
CO
(+)
(-)
R
C
RS485
Exp
Factory
Com1
Com2
Config
G
G
G
Y
R
SW1 Test
FP1 – 15
o
F/30
o
F
JW2 - Alarm
P11
P5
P2
P1
P8
P7
P9
P6
P3
SW2
P13
P4
FP2 – 15
o
F/30
o
F
RV – B/O
ACC – Dip 1
ACC – Dip 2
CC – Dual/Single
L – Pulse/Continuous
Reheat/Normal
Factory Use
Field Connections
Field Connections
C
LP
FP1
F
CC
G
Y1
1
2
3
4
5
6
7
8
Off
On
N/A
RS485 NET
EH1
LED 1
LED 3
LED 2
LED 5
LED 4
5.0 in.
6.25 in.
5.5 in.
5.75 in.
Blower (G) -
The blower will start immediately upon receiving a
thermostat G command. If there are no other commands from the
thermostat the ECM will run on “G” speed until the G command is
removed. Regardless of blower input (G) from the thermostat, the
blower will remain on for 30 seconds at the end of each heating,
cooling, and emergency heat cycle.
Emergency Shutdown -
Four (4) seconds after a valid ES input,
P2-7 is present, all control outputs will be turned off and remain
off until the emergency shutdown input is no longer present. The
first time that the compressor is started after the control exits
the emergency shutdown mode, there will be an anti-short cycle
delay followed by a random start delay. Input must be tied to
common to activate.
Load Shed -
The LS input disables all outputs with the exception
of the blower output. When the LS input has been cleared, the anti-
short cycle timer and random start timer will be initiated. Input must
be tied to common to activate.
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
Fault LED, Green
Normal Mode
ON
Control is Non-functional
OFF
Test Mode
Slow Flash
Lockout Active
Fast Flash
Dehumidification Mode
Flash Code 2
(Future Use)
Flash Code 3
(Future Use)
Flash Code 4
Load Shed
Flash Code 5
ESD
Flash Code 6
(Future Use)
Flash Code 7
Configuration LED (LED2, Yellow)
Description of Operation
Configuration LED, Yellow
No Software Overwritten
Flashing ECM Setting
DIP Switch was Overwritten
Slow Flash
ECM Configuration Mode
Fast Flash
Fault LED (LED1, Red)
Red Fault LED
LED Flash
Code*
Lockout Reset/Remove
ABC Basic Faults
Normal - No Faults
OFF
–
Fault - Input
1
No
Auto
Fault - High Pressure
2
Yes
Hard or Soft
Fault - Low Pressure
3
Yes
Hard or Soft
Fault - Freeze Detection FP2
4
Yes
Hard or Soft
Fault - Freeze Detection FP1
5
Yes
Hard or Soft
Fault - Condensate Overflow
7
Yes
Hard or Soft
Fault - Over/Under Voltage
8
No
Auto
Fault - FP1 & FP2 Sensor Error
11
Yes
Hard or Soft
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.
ABC Control Board Layout
The Aurora ‘Base’ Control System cont.
AFFINITY DUAL-CAPACITY OUTDOOR SPLIT SERIES INSTALLATION MANUAL
