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Wiring Schematics cont.
Aurora Advanced with 5-Speed ECM
HP
P4
HP
LP
LP
FP2
FP2
FP1
FP1
REV
REV
CC2
G
P5
LO
HI
CCG
CC
FG
F
R
JW2 - Alarm
F
CC
G
Y1
P2
The manufacturer works continually to improve its products. As a result, the design and specifi cations of each product at the time of order may be changed without notice. Purchaser's approval of this data set signifi es that the equipment is acceptable under the provisions
of the job specifi cation. Statements and other information contained herein are not express warranties and do not form the basis of any bargain between the parties, but are merely the manufacturer's opinion or commendation of its products. York and Affi nity are registered
trademarks of Johnson Controls, Inc., and are used with permission.
SD2500AK6
06/21
P.O.:
Unit Tag:
Off
On
FP1 – 15
o
F/30
o
F
1
ECM PWM
R
FP2 – 15
F/30
F
o
o
P13
RV – B/O
3
Fault
ACC – Dip 4
4
5
ACC – Dip 5
CC – Dual/Single
6
SW1 Test
G
L – Pulse/Continuous
Status
8
Reheat/Normal
SW2
RV – K1
AURORA BASE
CC – K2
CONTROL™
CC Hi – K3
Fan – K4
P11
Alarm – K5
Acc – K6
P9
Factory Fan Connection
Field Connections
Field Connections
P1
AXB Accessory 2 DIP Se ngs
SW1-4
SW1-5 DESCRIPTION
ON
ON
Cycles with Blower
OFF
ON
Cycles with CC rst stage compressor or compressor spd 1-12
ON
OFF
Cycles with CC2 second stage of compressor or comp spd 7-12
OFF
OFF
Cycles with DH from ABC board
ABC SW2 Accessory Relay
DESCRIPTION
Cycle with Blower
Cycle with Compressor
Water Valve Slow Opening
Cycle with Comm. T-stat Hum Cmd
EH1
2
Y
Config
P3
EH2
C
EH1
C
CO
7
N/A
(+)
P6
(-)
R
C
P7
(+)
(-)
G
Com1
R
C
P8
G
Com2
Dual Fuel Wiring Diagram
Using Field Installed Relay
Fossil Fuel
R
R
SW2-4
SW2-5
ON
ON
OFF
OFF
ON
OFF
OFF
ON
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 – When Auxiliary Heat is field installed the harness will be connected to the auxiliary
heat unit. The auxiliary heat unit will then power the blower. Refer to EAS/EAM/EAL
Auxiliary Heat kit installation instructions. Wires are secured at blower
4 – Low voltage wiring CLASS 2.
5 - Y2 input wire Tan not connected on Single Speed units. Wire is secured at blower.
6 - Wires provided for Auxiliary Heat low voltage control. Wires are secured at blower.
7 – Brown blower power wire routed through Current Transducer two times.
8 – Field Connected: Refer to Installation Manual and Auxiliary Heat Instructions for
Current Transducer installation.
9 – Variable speed pump low voltage harness provided with Variable Speed Flow Center.
10 – Variable speed pump power wires to connect the pump to L1 and L2 on the AXB board
are provided with Variable Speed Flow Center.
11 - Field installed SPST relay required for dual fuel installation.
12 - Refer to units 5 SPEED ECM MOTOR LOW VOLTAGE CONNECTION table for
factory settings.
57
Affinity & Affinity Advanced Series
MODULATING VALVE
GND
1
24 VAC
2
0-10DC
3
Communicating Thermostat
To Fossil Fuel
Furnace W input
Dual Fuel Wiring Diagram
Using Field Installed Relay
Note 11: Field installed SPST dual fuel relay
(Required for dual fuel installation)
EH1
ABC
Board
C
Thermostat
Traditional Thermostat
Y1
1st Stage Compressor
Y2
2nd Stage Compressor
O
Reversing Valve
L
Fault Signal
Furnace
C
C
Common
Common
R
R
24 VAC
24 VAC
W
Auxiliary Heat Relay
G
G
Fan
Auxiliary
Heat Relay
W
Auxiliary Heat Relay
Note 11: Field installed SPST dual fuel relay
(Required for dual fuel installation)
Figure 1:
K6 Relay
Optional Internal
Hot Water
Generation Pump
COM
NO
Wiring Schematic
L2
Blue
DHW
Cabinet
HW
Pump
Switch
Blue
3
2
1
Notes
1 - 6 Tons 60Hz
AXB BOARD
1
2
C
R
ABC BOARD
R from Fossil
Fuel Furnace
24VDC
ABC Board
Y1
Y2
O
P1
LO
C
R
ES
P2
= chassis
Connects to L2
and NO on
AXB Board
Purple
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