29
T2GY INSTALLER’S GUIDE
Wiring Schematics cont.
208-230/60/1 ECM with IntelliStart cont.
Operation Logic Data
STG1
STG2
STG3
EMERG
STG1
STG2
Compressor
On
On
On
Off
On
On
Stg 2 On
Reversing Valve
Off
Off
Off
Off
On
On
Off
Loop Pump
On
On
On
Off
On
On
On
Load Pump
Off
Off
Off
Off
Off
Off
On
Aux Heater
Off
Off
Staged
Staged
Off
Off
Off
Acc Relay
On
On
On
Off
On
On
Off
Diverting Valve
Off
Off
Off
Off
Off
Off
On
ECM Speed
On
On
On
On
On
On
Off
T-Stat Signal
Y1
Y1, Y2
Y1, Y2, W
W
Y1, O
Y1, Y2, O
HW
Damper
Off
Off
Off
On
Off
Off
Off
Auxiliary 1 - Out
On
On
On
Off
On
On
On
Operation
Logic Table
Heating
Cooling
Hot Water
Mode
Perfect Speed
Blower Motor
Grn
4
2
3
1
PWM
P12 Connects Here
P11
2
3
4
5
1
Not Used
COM
Feedback
15
10
16
3
8
NOTE 9
DO NOT REMOVE JUMPER WIRES
PLACE AUXILIARY HEAT SCHEMATIC ON UNIT SCHEMATIC
2
3
P9
5
4
1
L2
L1
L2
L1
Green
P11
2
3
4
5
1
Gray
Yellow
Black
Pink
Yellow
Gray
Black
Pink
Black
Pink
Gray
Black
Pink
Yellow
Violet
Blue
Brown
Orange
HE1
TS1
HE3
TS3
HE2
TS2
HE4
TS4
Gray
Yellow
Connects to variable
speed ECM motor only
G
G
EHC1
EHC2
ER1
ER2
ER3
ER4
NO
NO
NO
NO
EA Series PCB
P2
C
1
2
3
4
P1
4
1
2
3
C
G
G
G
G
Gray
EHC1
Yellow
Black
EHC2
Pink
Electric Heat Contactor
Light emitting diode - Green
208-230V Relay coil
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
ER1 to ER4 - Aux heat stage relays
EHC
EHC
Breaker
1 2 3
P
TS
EHR
24VDC Relay coil
Yellow
Gray
Black
Pink
2 - Use manufacturer’s part number 19P592-01 (jumper
bar assembly) when single source power is required.
3 – 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).
1 - Use copper or aluminum conductors.
4 – Jumpers wires are Factory Installed, and are
required for auxiliary heat operation.
Note 4
5 – Low voltage wiring CLASS 2.
208-230/60/1
208-230/60/1
With optional EA Series 20kW Auxiliary Electric Heat Shown
Circuit 2
Circuit 1
Note 2
Place auxiliary heat schematic from kit here
Condensate
P3 on Aurora ABC Board
P3
EH2
C EH1 C
CO
Hot water pump enable switch
Thermistor
Light emitting diode - Green
Relay coil
Capacitor w/ bleed resistor
Switch - Condensate overflow
Switch - High pressure
Switch - Low pressure
Switch -Hot Water On/Off
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
Wire nut
Field wire lug
Ground
Fuse
CC -
CO -
CR1 -
CR2-
CR3 -
CR4 -
F1 and F2 -
WCL -
HE -
HP -
LP -
PB1, PB2 -
PS -
RV -
SW1 -
SW2 -
SW3 -
SW4 -
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 12 position
DIP package 8 position
DIP package 5 position
Thermal limit switch
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
CS -
Compressor Solenoid
Legend
PR -
Pump Relay
Breaker
7 – A hydronic input will generate a Y2 compressor call so that compressor only operates in high capacity.
Notes
1 - Switch blue and red wires for 208V operation.
2 - Typical hook-up shown for power open - power closed damper
shown.
3 - The blk/wh and gray/wh wires are removed when Aux Heat is installed
6 – SW2-8 must be in the OFF position for pulsed “L” lockout signal and in the ON position for constant “L” lockout signal.
5 - Air Flow Configuration Example: SW1 configured for dip 1 as low, dip 3
as medium, and dip 5 as high speed ECM fan.
4 – Use part number 19P592-01 (jumper bar assembly)
when single source power is required.
8 – Low voltage wiring CLASS 2.
9 – On units with a Perfect Speed ECM blower motors, the blower’s low voltage harness from the board with the P12 connector will
connect to a jumper harness that is connected to the blower motor. SW3-3 DIP switch should be set in the OFF position.
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