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TH146-P-2H1C 400-280-014-A 5/23/07 4/11
Wiring Tables
Heat Pump
Terminal Device 1H1C 2H1C
TH
Console Connect the console between the TH terminals (no polarity)
TH
PS Plenum sensor Connect the plenum sensor between the PS and CS terminals (no polarity)
CS Common S Common terminal for the plenum sensor and the outdoor sensor
OS Outdoor sensor Connect the outdoor sensor between the CS and OS terminals (no polarity)
DE Dual Energy Connect the dual-register meter between the DE and CC terminals (no polarity)
CC Common C Common terminal for the dual-energy meter and the unoccupied mode input
UN Unoccupied mode input Connect a dry contact between the UN and CC terminals (no polarity)
H
Humidifier (24 Vac / 1 A) Connect the humidifier between the H terminals (dry contact)
H
R
Power (24 Vac)
√√
C
√√
Y Compressor (24 Vac / 1 A)
√√
W Auxiliary heat (24 Vac / 1 A)
√
O/B Reversing valve (24 Vac / 1 A)
√√
G Fan (24 Vac / 1A)
√√
L Fault (24 Vac / 5 mA)
√√
WW Defrost (24 Vac / 5 mA)
√√
HVAC
Terminal Device 1H 1C 1H1C
TH
Console Connect the console sensor between the TH terminals (no polarity)
TH
PS Plenum sensor Connect the plenum sensor between the PS and CS terminals (no polarity)
CS Common S Common terminal for both plenum sensor and outdoor sensor
OS Outdoor sensor Connect the outdoor sensor between the OS and CS terminals (no polarity)
DE Not used
CC Common C Common terminal for the unoccupied mode input
UN Unoccupied mode input Connect a dry contact between UN and R terminals (no polarity)
H
Humidifier (24 Vac / 1 A) Connect the humidifier between the H terminals (dry contact)
H
R
Power (24 Vac)
√√√
C √√√
Y Cooling unit (24 Vac / 1 A) √√
W Heating unit (24 Vac / 1 A) √√
O/B Not used
G Fan (24 Vac / 1 A) √√√
L Not used
WW Not used
400-280-014-A (TH146-P-2H1C) ENG.fm Page 4 Wednesday, May 23, 2007 4:12 PM