Contractor:
P.O.:
Engineer:
Project Name:
Unit Tag:
The manufacturer works continually to improve its products. As a result, the design and speci
fi
cations of each product at the time of order may be changed without notice. Purchaser’s approval of this data set signi
fi
es that the equipment is acceptable under the provisions
of the job speci
fi
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 Af
fi
nity are registered
trademarks of Johnson Controls, Inc., and are used with permission.
C
DESCRIPTION
SW2-4
SW2-5
Cycle with Blower
ON
ON
Cycle with Compressor
OFF
OFF
Water Valve Slow Opening
ON
OFF
Cycle with Comm. T-stat Hum Cmd
OFF
ON
ABC SW2 Accessory Relay
Current Transducer (CT)
Thermistor
Light emitting diode - Green
Relay coil
Capacitor w/ bleed resistor
Switch - Condensate overflow
Switch - High pressure
Switch - Low pressure
Polarized connector
Factory Low voltage wiring
Factory Line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
DC Voltage PCB traces
Junction
Quick connect terminal
Wire nut
Field wire lug
Ground
Fuse
CC -
CO -
K5 -
K6 -
CR3 -
CR4 -
F1 and F2 -
WCL -
HE -
HP -
LP -
PB1, PB2 -
PS -
RV -
SW1 -
SW1 -
SW2 -
TS -
Compressor Contactor
Condensate overflow sensor
DHW pump relay
Loop pump relay
Fuses
Water Coil Limit Sensor
Heater element
High pressure switch
Low pressure switch
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
Legend
Relay Contacts-
N.O., N.C.
G
T
1
3
2
P
L1
PSC Fan Speed Relay
PSC Fan Power Relay
ER1 to ER4 -
Aux heat stage relays
HWL -
Hot water limit sensor
SC -
Start Contactor
Start Relay
SR -
CS -
Compressor Solenoid
Breaker
Aurora LED Flash Codes
Status LED (LED3, Green)
Status LED (LED1, Green)
Configuration LED (LED2, Yellow)
Fault LED (LED3, Red)
Random Start Delay (Alternating Colors)
Fast Flash
Fast Flash
Fast Flash
1 second on and 1 second off
100 milliseconds on and 100 milliseconds off
100 milliseconds on and 400 milliseconds off with a 2 second pause before repeating
Slow Flash
Fast Flash
Flash Code
Normal Mode
Control is Non-Functional
Test Mode
Lockout Active
Dehumidification Mode
Future Use
Future Use
Load Shed
ESD
OFF
ON
Slow Flash
Fast Flash
Flash Code 2
Flash Code 3
Flash Code 6
Flash Code 4
Flash Code 5
Future Use
Flash Code 7
Configuration LED (LED2, Yellow)
No Software Overide
OFF
DIP Switch Overide
Slow Flash
Fault LED (LED1, Red)
Normal Mode
Input Fault Lockout
High Pressure Lockout
Low Pressure Lockout
Future Use
Freeze Detection – FP1
Reserved
Condensate Overflow Lockout
Over/Under Voltage Shutdown
Future Use
Future Use
FP1 Sensor Error
Flash Code 1
OFF
Flash Code 2
Flash Code 3
Flash Code 4
Flash Code 5
Flash Code 8
Flash Code 6
Flash Code 7
Flash Code 9
Flash Code 10
Flash Code 11
2
3
P9
5
4
1
L2
L1
L2
L1
Green
P11
2
3
4
5
1
Violet
Blue
Brown
Orange
HE1
TS1
HE3
TS3
HE2
TS2
HE4
TS4
Connects to variable
speed ECM motor only
60 AMP
BRK1
60 AMP
BRK2
G
G
K1
K2
K3
K4
NO
NO
NO
NO
EA Series
PCB
P2
4
1
2 3
C
G
G
G
G
K5
NO
K6
NO
K7
NO
K8
NO
Gray
Yellow
Gray
Yellow
Black
Pink
Black
Pink
Pink
Pink
Gray
Black
Yellow
Gray
Black
Yellow
4
1
2 3
C
P1
COM
COM
COM
COM
COM
COM
COM
COM
Aux heat staging
FB1
FB2
FB3
FB4
P3 on Aurora ABC Board
P3
EH2
C EH1 C
CO
Light emitting diode - Green
Polarized connector
Factory Low voltage wiring
Factory Line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
DC Voltage PCB traces
Internal junction
Quick connect terminal
Thermal Limit Switch
Field wire lug
Ground
HE -
PB -
Heater element
Power block
Legend
N.O., N.C.
G
L1
Breaker
1 2 3
P
TS
Electric Heat Relay
K*
Fused Backup
FB
2 - Use manufacturer’s part number 19P592-01 (jumper
bar assembly) when single source power is required.
1 - Use copper or aluminum conductors.
3 – Jumpers wires are Factory Installed, and are
required for a uxiliary heat operation.
4 – Low voltage wiring CLASS 2.
NOTE 3
With optional EA Series 20kW Auxiliary Electric Heat Shown
Wiring Schematics cont.
Aurora Base with ECM, IntelliStart and UPC cont.
Affinity & Affinity Advanced Series
1 - 6 Tons 60Hz
SD2500AK6 11/22
53
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