Remotec Z-Wave Thermostat replacement for aircon

Out of stock

Upgrade your old analogue or digital display thermostat to a programmable Z-Wave electronic thermostat controller and start saving heating cost while keeping your home comfort in winter. Monitor and control your aircon from anywhere!

Remotec Z-wave Thermostat replacement for aircon

Featuring an easy to read blue backlit display and easy-to-use screen keep operation and programming simple. The remotec ZTS-110 Z-wave thermostat allow you to control your room temperature with programmable time schedule WAKE, AWAY, HOME and SLEEP event which can maximize energy conservation and comfort while minimizing the effort required to maintain the appropriate temperature in your home whether you are at home or away.

Convenient, Intelligent Features and Broad Compatibility

This thermostat delivers permanent day and time settings that are even maintained during power outages, and it offers the option to control / check your room temperature by the smart phone or PC while you are at office, home anywhere or around the world which can go through the Z-Wave Gateway control.

For added convenience, the thermostat unit can be run using battery power (AA size) or using power from your heating/cooling system (24VAC), giving you the option of permanently eliminating battery changes.

This thermostat is compatible with a broad range of 24-volt heating and cooling systems, including both single-stage (cooling) and single and two-stage heating systems (non-heat pump), single-stage heat pumps, and heating-only or cooling-only systems. Uses standard thermostat connections

♦ 2 program modes for scheduling (Mon-Fr,i Sat-Sun)
♦ 4 Separate Time and Temperature Settings for each program
♦ Heat and Cool set-points for each program
♦ Temporary Program Override
♦ Permanent Program Override
♦ Built-in flash memory stores heat and cool program settings
♦ Control from Smart phones, IPhone/IPad/IPod (via home controller)
Integrates with certified Z-Wave controllers in Australian version (921.42MHz) including Vera 2 / 3 / Lite
♦ Z-Wave Dual mode (FLiRS & Always Listening)
♦ Build-in Watch dog (Avoid system failure)
♦ Build-in Simple mode (Avoid discrepancy)
♦ Super Association (Controls up to 5 independent device over Z-Wave RF under user defined condition)


To check compatibility with your heater or HVAC system please see what terminals are in use at your current heater or HVAC systems.




Cool changeover (heat pump)


Heat changeover (heat pump)


2nd Stage heater


1st Stage heater






24Vac Power for Cooling


24Vac Power for Heating


24Vac Common



 Please note:

♦ This device is not compatible with electric baseboard heat (120 to 240 volts).  It is not compatible with some of multifunction 2-wires Japanese brands heaters and HVAC systems.
♦ If you are feeling not confident to connect this thermostat please contact us and we'll get you in touch with a trusted electrician. 

 Technical Specifications 

 RF Protocol
 Z‐wave device type
 Z-wave Thermostat, Routing Slave
 Relay contact
 Voltage: 24 VAC 50/60 Hz
 Current: 1A Max. (inductive)
 Operating Voltage
 DC 6V, 4 x AA Battery or
 24 VAC +/- 20% 50/60Hz
 RF Frequency
 921.42Mhz ‐ AUS/NZ approved RF for Z‐Wave
 Operation Range
 Up to 30m when no obstacles
 Indoor use only
 Temperature measurable range
 32 – 99 °F / 0 – 40 °C
 Operating: 0 – 50 °C
 Storage:  -5 – 60 °C
 170g (Batteries excluded)
 Dimension (L x H x T)  145mm x 100mm x 25mm

2-wire thermostat


The most basic of systems (such as an older ‘heat only’ forced air / gas furnace with a standing pilot light) only need 2 wires for control. They connect to a 2-wire thermostat (generally a mechanical thermostat with a mercury filled ball connected to a coiled bi-metal strip).

The terminals are usually marked ‘R’ and ‘W’. They usually operate at 24V ac power, and the source of this control power comes from a control transformer mounted either just outside, or inside the furnace body. The line voltage feeding the furnace (to operate the fan blower motor) is transformed down to a safer level of 24 volts (the gas control valve needs 24 volts to open), and after making a series loop through at least one safety device (the most basic and mandatory one is an over-temperature shut down), the power goes up to the thermostat, and when the room temperature falls below the set-point, the contacts close completing the circuit to the gas valve allowing it to open, the main burner to ignite, and begin the heating cycle.

In this the most basic of heating systems, as the temperature of the heat exchanger rises, another contact is closed on the line voltage side of the equation, and the fan blower motor starts moving air through the heat exchanger and out through the ducting in the home. If the fan fails to run for any reason, the heat exchanger will get too hot and the hi-limit temperature device will open the circuit to the gas valve, closing the valve and stopping the heat cycle.

3-wires thermostat

If your home’s system of this vintage has provisions for air-conditioning (cooling), then the thermostat wiring will have at least 3 wires (some will require a separate ‘R’ terminal for heating and cooling and will be labelled ‘Rh’ and ‘Rc’ now needing a minimum of 4 wires), ‘R’, ‘W’, and a ‘Y’ terminal. When the mode is selected for cooling (basic heat / cool thermostats have a mode selector for either ‘heat’, ‘cool’, or ‘auto’) when the room temperature rises above the set-point, the thermostat will close the connection between the ‘R’ and the ‘Y’ terminals completing the circuit to the compressor and condenser unit that provides the cooling for the evaporator coils mounted in the discharge ducting of the system.

Fan option

The next step up from the older home systems was the introduction of the ‘fan on / auto’ switch. This function allows you to circulate the air in the house by using the fan in the furnace without heating or cooling the air moving through the system.
In the most basic system, this functionality is provided by use of a fan center relay, and the low voltage wiring to the thermostat now will require a minimum of 3 wires (for heat only units) and 4 wires (for heat / cool / fan) for control. This additional terminal is labelled ‘G’ in the thermostat.

When the ‘fan on’ setting is selected, the contacts between ‘R’ and ‘G’ are closed turning on the relay that powers the blower motor directly regardless of a call for heating or cooling.

More Information
Repeats z-wave signalsYes
Electrican RequiredYes
Neutral wire requirementNo
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