Remotec ZTS-100 User Manual page 8

When wiring split systems, wire the heating systems "24Vac Power" (red wire) to
the ZTS-100 "RH" terminal, and wire the cooling systems "24Vac Power" to the
ZTS-100 "RC" terminal. Also wire the cooling systems "24Vac Common" to the
ZTS-100 "C" terminals.
Note: Do not split RC/RH for Heat Pump systems!
Figure 2.
Non-heat pump (Standard Gas or Electric) HVAC system wiring
O
B
W2
W1
G
Y
RC
RH
C
Figure 3.
Heat pump system wiring
O
B
W2
W1
G
Y
RC
RH
C
Brown
White
Green
Yellow
Red
Black
Orange
Blue
Brown
Green
Yellow
Red
Black
7
Standard HVAC System
nd
W2 - 2 stage heater
st
W1 - 1 stage heater
G - Fan
Y - Compressor
R - 24Vac Power
C - 24Vac Common
Heat Pump HVAC System
O - Cool changeover (heat pump)
B - Heat changeover (heat pump)
nd
W2 - 2 stage heater
G - Fan
Y - Compressor
R - 24Vac Power
C - 24Vac Common