INSTEON Thermostat with Humidity (2441TH) Quick Start - Manual (Page 6)

3
Verify that the INSTEON Thermostat will
work with your air conditioning system.
Heat pump and line voltage systems are
incompatible.
W1/O/B W2
M1SC1
RS2
M1SC3
RS+5
RS1
RS GND
Y1
G
M1SC2
CK1
CK GND
R
C
X