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Wiring Schematics cont.
Aurora Base with PSC cont.
Communicating Thermostat
To Fossil Fuel
Furnace W input
Dual Fuel Wiring Diagram
Using Field Installed Relay
Note 8: Field installed SPST dual fuel relay
(Required for dual fuel installation)
EH1
ABC
Board
C
Aurora LED Flash Codes
Slow Flash
1 second on and 1 second off
Fast Flash
100 milliseconds on and 100 milliseconds off
Flash Code
100 milliseconds on and 400 milliseconds off with a 2 second pause before repeating
Random Start Delay (Alternating Colors)
Configuration LED (LED2, Yellow)
Status LED (LED1, Green)
Fast Flash
No Software Overide
Configuration LED (LED2, Yellow)
Fast Flash
DIP Switch Overide
Fast Flash
Fault LED (LED3, Red)
Fault LED (LED1, Red)
Normal Mode
OFF
Normal Mode
Input Fault Lockout
Flash Code 1
Control is Non-Functional
High Pressure Lockout
Flash Code 2
Test Mode
Low Pressure Lockout
Flash Code 3
Lockout Active
Future Use
Flash Code 4
Dehumidification Mode
Freeze Detection – FP1
Flash Code 5
Future Use
Reserved
Flash Code 6
Future Use
Condensate Overflow Lockout
Flash Code 7
Load Shed
Over/Under Voltage Shutdown
Flash Code 8
ESD
Future Use
Flash Code 9
Future Use
Future Use
Flash Code 10
FP1 Sensor Error
Flash Code 11
Aurora Timing Events
Event
Random Start Delay
5 to 80 seconds
Compressor On Delay
Compressor Minimum On Time
Compressor Short Cycle Delay
Blower Off Delay
Fault Recognition Delay – High Pressure
Less than 1 second
Start-Up Bypass – Low Pressure
Fault Recognition Delay – Low Pressure
Start-Up Bypass – Low Water Coil Limit
Fault Recognition Delay – Low Water Coil Limit
Fault Recognition Delay – Condensate Overflow
Thermostat Call Recognition Time
Comfort Alert Recognition Time
Auxiliary Heat Staging Delay
Emergency Heat Staging Delay
Water Valve Slow Open Delay
Notes
1 - Switch blue and red wires for 208V operation.
2 - The blk/wh and gray/wh wires are removed when Aux Heat is installed
3 - Use manufacturer's part number 19P592-01 (jumper bar assembly) when single source power is
required.
4 - When connected the Auxiliary Heat powers blower and controls. Wires are secured at blower.
5 – Low voltage wiring CLASS 2.
6 - Refer to FAN SPEED table for factory settings.
7 - Wires provided for Auxiliary Heat low voltage control. Wires are secured at blower.
8 - Field installed SPST relay required for dual fuel installation.
9 – Ground wire only on units with aluminum air coils.
FACTORY SET FAN SPEED
UNIT
STANDARD PSC
12
H
18
M
22
M
30
M
36
M
42
M
48
M
60
M
70
H
UNIT
HIGH STATIC PSC
22
M
30
M
36
M
42
M
48
M
ABC SW2 Accessory Relay
DESCRIPTION
SW2-4
Cycle with Blower
Cycle with Compressor
OFF
Water Valve Slow Opening
Cycle with Comm. T-stat Hum Cmd
OFF
AFFINITY & AFFINITY ADVANCED SINGLE & DUAL CAPACITY SERIES INSTALLATION MANUAL
R from Fossil
Fuel Furnace
24VDC
To PB2
OFF
Slow Flash
Status LED (LED3, Green)
ON
OFF
Slow Flash
Fast Flash
Green
Flash Code 2
Flash Code 3
Flash Code 4
Flash Code 5
1
Flash Code 6
Flash Code 7
Connects to variable
speed ECM motor only
Normal Mode
Test Mode
1 second
5 seconds
< 1 second
2 minutes
5 seconds
4 minutes
15 seconds
30 seconds
2 seconds
CSA installed units only
Less than 1 second
Local codes may require a single
2 minutes
30 seconds
source of power supply
30 seconds
30 seconds
Single Disconnect Power
2 minutes
30 seconds
208-230/60/1
30 seconds
30 seconds
30 seconds
30 seconds
Breaker box
2 seconds
2 seconds
furnished by
90 seconds
90 seconds
installer
5 minutes
20 seconds
2 minutes
7.5 seconds
90 seconds
90 seconds
Circuit Breakers
L1
Aux Elect Power
208-230/60/1
HP
ECM PWM
P4
HP
P13
LP
LP
FP2
FP2
LED3
FP1
SW1 Test
G
FP1
REV
Status
REV
RV – K1
CC2
CC – K2
G
P5
CC Hi – K3
LO
HI
CCG
CC
Fan – K4
FG
F
R
Alarm – K5
SW2-5
ON
ON
JW2 - Alarm
OFF
F
Acc – K6
ON
OFF
CC
ON
P9
G
Y1
Field Connections
P2
With optional EA Series 10kW Auxiliary Electric Heat shown
Place auxiliary heat schematic from kit here
P9
1
NOTE 4
2
Green
3
Brown
5
Orange
4
Blue
Violet
2
3
4
5
P11
L1
L2
C
1
2
P3 from unit's control box
connects to P2
L2
L1
L2
Unit Power
208-230/60/1
On
Off
LED2
LED1
1
FP1 – 15
o
F/30
o
F
EH1
R
2
Y
FP2 – 15
o
F/30
o
F
RV – B/O
3
Fault
Config
P3
EH2
ACC – Dip 4
4
C
ACC – Dip 5
5
EH1
C
6
CC – Dual/Single
CO
L – Pulse/Continuous
7
N/A
8
Reheat/Normal
SW2
(+)
P6
(-)
R
AURORA BASE
C
CONTROL™
LED5
P7
(+)
(-)
G
Com1
R
C
P11
P8
LED4
G
Com2
Factory Fan Connection
Field Connections
P1
R
R
49
1 - Use copper or aluminum conductors.
208-230/60/1
2 – When Auxiliary Heat is installed the BLK/WHT
wire from CC-L1 to PB2-2 and the GRY/WHT wire
from CC-L2 to PB2-1 must be removed (located in
the heat pump control box).
3 – Jumpers wires are Factory Installed, and are
G
L1
L2
Required for auxiliary heat operation.
4 - When installed the Auxiliary Heat powers blower and controls.
5 – Low voltage wiring CLASS 2.
Brown
Black
Orange
Gray
TB
ER
Black
1
Gray
HE1
Gray
Gray
N
G
O
ER
2
HE2
Black
Black
N
G
O
Gray
ER
3
N
Gray
O
G
Black
ER
4
Black
N
O
G
EA Series
PCB
P2
P1
3
4
C
1
2
3
4
NOTE 3
Legend
Factory Low voltage wiring
T
Factory Line voltage wiring
Field low voltage wiring
G
Field line voltage wiring
Optional block
DC Voltage PCB traces
Junction
Quick connect terminal
Wire nut
Field wire lug
L1
Ground
Relay Contacts-
2
3
N.O., N.C.
P
Fuse
Breaker
PB1, PB2 -
CC -
Compressor Contactor
PS -
CO -
Condensate overflow sensor
RV -
K5 -
DHW pump relay
K6 -
Loop pump relay
SW1 -
PSC Fan Speed Relay
SW1 -
CR3 -
PSC Fan Power Relay
SW2 -
CR4 -
CS -
Compressor Solenoid
TS -
F1 and F2 -
Fuses
HWL -
HE -
Heater element
SC -
HP -
High pressure switch
SR -
ER1 to ER4 -
Aux heat stage relays
WCL -
LP -
Low pressure switch
TS1
TS2
Thermistor
Light emitting diode - Green
Relay coil
Capacitor w/ bleed resistor
Switch - Condensate overflow
Switch - High pressure
Switch - Low pressure
1
Polarized connector
Current Transducer (CT)
Power blocks
Power strip
Reversing Valve coil
DIP package 5 position AXB
TEST MODE ABC Board
DIP package 8 position ABC Board
Thermal limit switch
Hot water limit sensor
Start Contactor
Start Relay
Water Coil Limit Sensor
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