Z-Wave ZTS-500 - Heat Pump HVAC System Wiring

9
2-wires system with 1 heat only
Figure 9. Non-heat pump (Standard Gas or Electric) 2-wires HVAC system wiring
Heat Pump HVAC System
Important:
If there is no C-wire in the HVAC system, the ZTS-500 must be powered by batteries and it will
be operated in FLiRS mode after inclusion into a Z-Wave network.
Do not split RC/RH for Heat Pump systems! Multi-stage: 2 Heat / 2 Cool
Figure 10. Heat pump HVAC system wiring
W1
W2
O
B
G1
G2
Y1
Y2
C
RC
RH
Black (with C-Wire)
Red
Yellow
W2 - 2
nd
stage Heater
O - Cool changeover (heat pump)
B - Heat changeover (heat pump)
G1 - 1
st
stage Fan
G2 - 2
nd
stage Fan
Y1 - 1
st
stage Compressor (Heat/Cool)
Y2 - 2
nd
stage Compressor (Cool)
C - 24Vac Common
R - 24Vac Power
Heat Pump HVAC System
Blue
Orange
ZTS
-
500
Green
Vary
Vary
W1
W2
O
B
G1
G2
Y1
Y2
C
RC
RH
W - Heater
R - 24Vac Power
White
ZTS
-
500
(Powered by batteries)
Red
Non
-
Heat Pump (standard)
HVAC System
Typical wire colour
Typical wire colour
No C-wire
Vary
RC and RH are
internal connected
RC and RH are
internal connected