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ZTS-500US
Z-Wave Smart Thermostat
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ZTS-500, Z-Wave Smart Thermostat
Introduction
The ZTS-500 (Figure 1) is a security Z-Wave enabled thermostat designed to control the majority of
HVAC systems. A security Enabled Z-Wave Plus Controller must be used in order to fully utilize the
product. Users can use local or remote control and monitor the temperature via an App on smart
phone or PC while at home or away through a Z-Wave gateway. It can maximize energy
conservation and comfort while minimizing the effort required to maintaining a desired
temperature in your home.
Figure 1. ZTS-500
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Features List
HVAC System Compatible:
Standard (Gas/Electric) or Heat Pump HVAC systems
Multi-stage System Compatible:
Standard HVAC Systems: 2 stages heating, 2 stages cooling, 2 stages fan
Heat Pump Systems: 2 stages heating, 2 stages cooling, 2 stages fan
Heat Pump change over valve:
Selectable change over with heat or cool (B or O output)
Fan system:
Selectable for gas or electric heat systems
Temperature Display, Indication and Control:
Temperature unit in °F or °C
Temperature Measurable Range: 32 - 99 °F / 0 - 37 °C
Temperature Setting Range: 41 - 99 °F / 5 - 37 °C
Adjustable Temperature Control Swing, Differential and Dead band
a) Swing: 1°F, 2°F, 3°F or 4°F ( 0.5°C, 1.0°C, 1.5°C or 2°C)
b) Differential: 1°F, 2°F, 3°F or 4°F ( 0.5°C, 1.0°C, 1.5°C or 2°C)
c) Dead band: 3°F, 4°F, 5°F or 6°F ( 1.5°C, 2.0°C, 2.5°C or 3°C)
Temperature sensor calibration
Filter replacement reminder after 500 hours usage (adjustable 500-4000hrs)
Defrost function and Out of temperature range control function
Energy saving mode
Short cycle start up protection
White LEDs display:
Resolution: 18 x 6 dots
View area: 64mm x 28mm
Status icons: 7
Wide viewing angle and high contrast ratio with 3 levels brightness control
Z-Wave:
Support “Frequently Listening Routing Slaves” (FLiRS) mode and “Always Listening” mode
Support Network Wide Inclusion (NWI) and Explore Frames
Support Security and Non- Security command
Support battery low and level report
Support Association Groups
a) Association Group-1 is a default status (AUTO) report channel in Z-Wave+ lifeline.
b) Association Group-2 is used for Heat Pump control
c) Association Group-3 is used for Compressor control
Advanced features through Z-Wave configuration parameters
Z-Wave Plus compliant
OTA (over-the-air) and USB firmware Upgradeability
Wiring Requirements:
Uses standard thermostat connections (C, RC,RH, W1, W2, Y1,Y2, G1, G2, O, B) – AWG #18
wires
Power Requirements:
Support AA x 2 or AA x 4 alkaline batteries (No C-wire required) or standard HVAC 24Vac
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Physical Installation and Wiring
C
aution
s!
We highly recommend that this installation procedure is performed by a trained HVAC
technician.
Read the enclosed instructions carefully before installing your new ZTS-500. Pay close
attention to all warnings and notes and carefully follow the installation steps in the order
they are presented to save time and minimize the risk of damaging the thermostat or the
system it controls.
Before disconnecting wires from the existing thermostat, label the wires with the terminal
markings from the old thermostat and record them. Take a picture of the old wiring as it will
be very helpful with troubleshooting in case you need to reinstall the old unit.
Turn off electronic devices (e.g. heater, cooler) which will be connected and the electric
source before installation and maintenance.
Do not use metal conduits or cables provided with a metal sheath.
Adding fuses or protective device in the line circuit is recommended.
Battery safety!
Use new batteries of the recommended type and size only.
Never mix used and new batteries together.
To avoid chemical leaks, remove batteries from the ZTS-500 if you do not intend to use the
unit for an extended period of time.
Dispose of used batteries properly; do not burn or bury them.
Read following scenarios carefully before you start as it matters to the battery life under Z-Wave
operation:
Installation Location
This thermostat is restricted to indoor use only. It should be mounted on an inner wall about 5ft
(1.5m) above the floor at a position where it is readily affected by changes of the general room
temperature with freely circulating air. Avoid mounting above or near hot surfaces or equipment
(e.g. TV, heater, refrigerator). Avoid mounting where it will be exposed to direct sunshine, drafts,
or in a laundry room or other enclosed space. Do not expose this unit to dripping or splashing
liquids.
Physically Installing the Thermostat
1. Open the ZTS-500 by pulling the two sections apart (Figure 2). Use the fingertips of one hand to
grip the tab on the front housing.
2. Insert the two included wall anchors into the wall, aligned with two of the mounting holes in
the back housing of the thermostat.
3. Open the terminal block of the ZTS-500 then insert all necessary wires through the back
housing (Figure 3).
4. Fasten the back housing to the wall using the two included mounting screws. Insert the screws
through the mounting holes in the housing and into the wall anchors (Figure 3).
5. Wire the proper cables to the terminal block according to the circuit diagram as described in
figure 4 and "Thermostat Terminal Wiring". Afterward, push all cables back into the wall then
close the terminal block of the ZTS-500.
6. The ZTS-500 can be powered by either two AA Alkaline batteries or four AA Alkaline batteries.
Match the polarity of the batteries with the +/- marks inside the battery compartment.
7. Align the front housing of the thermostat with the back housing and push until the housing
sections are locked together (Figure 5).
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Figure 2. Open ZTS-500 front housing
Figure 3. Open the terminal and mount into the wall
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Figure 4. Terminal wiring
Figure 5. Install the front housing
W1 W2 O B G1 G2 Y1 Y2 C RC RH
RC/RH jumper
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Thermostat Terminal Wiring
Figure 6. Terminal block and pin assignment
Terminals
Symbol
1st stage
H
eater
W1
or W 2nd stage
H
eater
W2
Cool c
hangeover
(heat pump)
O
Heat c
hangeover
(heat pump)
B
1st
stage
Fan G
1 or G
2nd
stage
Fan G2 1st
stage
Compressor
Y1 or Y
2nd
stage
Compr
essor
Y2 24Vac Common
C
24Vac
Power for C
ooling
RC 24Vac
Power for H
eat
ing RH
RC/RH jumper:
Most HVAC systems build-in a common heating and cooling transformer. The ZTS-500
has a built-in RH/RC jumper wire to connect RH and RC inputs for this configuration.
If the HVAC system contains separated heating and cooling transformers, please cut out
the RH/RC jumper and then connect the RC and RH inputs individually.
Thermostat wiring:
For Non-Heat Pump HVAC systems, please refer to figure 7, 8, and 9.
For Heat Pump HVAC systems, please refer to figure 10, 11, and 12.
RC/RH jumper
RC/RH jumper
Cut out RC/RH jumper!
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Non-Heat Pump (standard) 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.
Multi-stage: 2 Heat / 2 Cool
Figure 7. Non-heat pump (Standard Gas or Electric) HVAC system wiring
Single-stage: 1 Heat / 1 Cool
Figure 8. Non-heat pump (Standard Gas or Electric) HVAC system wiring
W1
W2
O
B
G1
G2
Y1
Y2
C
RC
RH
Black (with C-Wire)
Red
Yellow
Green
W1 - 1st stage Heater
W2 - 2nd stage Heater
G1 - 1st stage Fan
G2- 2nd stage Fan
Y1 - 1st stage Compressor (Cool)
Y2 - 2nd stage Compressor (Cool)
C - 24Vac Common
R - 24Vac Power
Non-Heat Pump (standard)
HVAC System
Vary
White
ZTS-500
RC and RH are
internal connected
Vary
Vary
W1
W2
O
B
G1
G2
Y1
Y2
C
RC
RH
Black (with C-Wire)
Red
Yellow
Green
W - Heater
G - Fan
Y - Compressor (Cool)
C - 24Vac Common
R - 24Vac Power
Non-Heat Pump (standard)
HVAC System
White
ZTS-500
Typical wire colour
Typical wire colour
RC and RH are
internal connected
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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 - 2nd stage Heater
O - Cool changeover (heat pump)
B - Heat changeover (heat pump)
G1 - 1st stage Fan
G2 - 2nd stage Fan
Y1 - 1st stage Compressor (Heat/Cool)
Y2 - 2nd 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
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Do not split RC/RH for Heat Pump systems! Single-stage: 1 Heat / 1 Cool
Figure 11. Heat pump HVAC system wiring
2-wires system with 1 heat only
Do not split RC/RH for Heat Pump systems!
For heat pump output, there is a 3 minutes off time for heat pump protection!
Figure 12. Heat pump 2-wires HVAC system wiring
Yellow
W1
W2
O
B
G1
G2
Y1
Y2
C
RC
RH
Black (with C-Wire)
Red
Yellow
O - Cool changeover (heat pump)
B - Heat changeover (heat pump)
G - Fan
Y - Compressor (Heat/Cool)
C - 24Vac Common
R - 24Vac Power
Heat Pump HVAC System
Blue
Orange
ZTS-500
Green
W1
W2
O
B
G1
G2
Y1
Y2
C
RC
RH
Y - Compressor (Heat)
R - 24Vac Power
ZTS-500
(Powered by batteries)
Red
Heat Pump System
Typical wire colour
Typical wire colour
No C-wire
RC and RH are
internal connected
RC and RH are
internal connected
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Setup and Operations
Product Overview
Figure 13. ZTS-500
Description of Function Keys
Symbol Key Description
Navigation keys or confirmation keys
Scroll keys
Mode Heat Cool Fan Brightness Z-Wave Disconnect Battery Low
Current Temperature
Terminals
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