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Wiring Tables
Terminal
TH
Console
TH
PS
Plenum sensor
CS
Common S
OS
Outdoor sensor
DE
Dual Energy
CC
Common C
UN
Unoccupied mode input
H
Humidifier (24 Vac / 1 A)
H
D
Dehumidifier (24 Vac / 1 A)
D
R
Power (24 Vac)
C
Y1
Compressor 1 (24 Vac / 1 A)
Y2
Compressor 2 (24 Vac / 1 A)
Y3
Compressor 3 (24 Vac / 1 A)
W1
Auxiliary heat 1 (24 Vac / 1 A)
W2
Auxiliary heat 2 (24 Vac / 1 A)
W3/O/B
Reversing valve (24 Vac / 1 A)
G
Fan (24 Vac / 1A)
L
Fault (24 Vac / 5 mA)
Defrost (24 Vac / 5 mA)
NOTE: Requires a dry contact (do not
WW
connect to a solid-state relay such as a
triac).
NC
Not used
Terminal
Device
TH
Console
TH
PS
Plenum sensor
CS
Common S
OS
Outdoor sensor
DE
Not used
CC
Common C
UN
Unoccupied mode input
H
Humidifier (24 Vac / 1 A)
H
D
Dehumidifier (24 Vac / 1 A)
D
R
Power (24 Vac)
C
Y1
Cooling unit 1 (24 Vac / 1 A)
Y2
Cooling unit 2 (24 Vac / 1 A)
Y3
Cooling unit 3 (24 Vac / 1 A)
W1
Heating unit 1 (24 Vac / 1 A)
W2
Heating unit 2 (24 Vac / 1 A)
W3/O/B
Heating unit 3 (24 Vac / 1 A)
G
Fan (24 Vac / 1 A)
L
Not used
WW
Not used
NC
Not used
TH146-P-U
Device
1H1C
Connect the console between the TH terminals (no polarity)
Connect the plenum sensor between the PS and CS terminals (no polarity)
Common terminal for the plenum sensor and the outdoor sensor
Connect the outdoor sensor between the CS and OS terminals (no polarity)
Connect the dual-register meter between the DE and CC terminals (no polarity)
Common terminal for the dual-energy meter and the unoccupied mode input
Connect a dry contact between the UN and CC terminals (no polarity)
Connect the humidifier between the H terminals (dry contact)
Connect the dehumidifier between the D terminals (dry contact)
1H
2H
3H
Connect the console sensor between the TH terminals (no polarity)
Connect the plenum sensor between the PS and CS terminals (no polarity)
Common terminal for both plenum sensor and outdoor sensor
Connect the outdoor sensor between the OS and CS terminals (no polarity)
Common terminal for the unoccupied mode input
Connect a dry contact between UN and R terminals (no polarity)
Connect the humidifier between the H terminals (dry contact)
Connect the dehumidifier between the D terminals (dry contact)
Heat Pump
2H1C
3H1C
HVAC
1C
2C
3C
1H1C 1H2C 2H1C 2H2C 2H3C 3H1C 3H2C 3H3C
2H2C
3H2C
4H2C
3H3C
4/8
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