Sinopé TH1124ZB

Line-voltage thermostat

The 4000 W version of Sinopé’s Zigbee 3.0 baseboard thermostat, for electric heaters drawing up to 16.7 A at 240 V. It switches the heater through a triac and reports the heater’s voltage, current, power and energy.

Sinopé TH1124ZB
  • Zigbee

Line-voltage thermostat

Compatibility

Compatible with EpiSensor Edge over Zigbee.

Pair it with the Zigbee radio on an EpiSensor Gateway. Edge reads it locally on the Gateway.

Edge reads 20 values from it, listed under Interface.

Connect it with

Specifications

The extra current allows more baseboard length, or several heaters, on one thermostat. Sinopé rates it for resistive loads only. The minimum load is the same as the TH1123ZB: 2 A (500 W at 240 V) for a baseboard, convector or radiant ceiling, and 4.16 A (1000 W at 240 V) for a fan-forced convector. The housing is 115 mm wide, against 85 mm for the TH1123ZB. Sinopé notes that a warm housing is normal.134

Power
Mains. Powered from the heating circuit it controls, so it needs no battery or separate supply.1
Supply voltage
120, 208 or 240 V AC, 60 Hz1
Switching
Triac1
Maximum load
16.7 A: 4000 W at 240 V AC, 2000 W at 120 V AC1
Minimum load, baseboard, convector or radiant ceiling
2 A: 500 W at 240 V AC, 250 W at 120 V AC1
Minimum load, fan-forced convector
4.16 A: 1000 W at 240 V AC, 500 W at 120 V AC1
Load type
Resistive only1
Setpoint range
5 to 30 °C1
Display range
0 to 50 °C1
Resolution
±0.5 °C1
Operating temperature
0 to 50 °C1
Storage temperature
-20 to 50 °C1
Wiring
Two-wire or four-wire, non-polarised2
Wireless
Zigbee 3.0, 2.4 GHz, +20 dBm transmit, -108 dBm receive sensitivity, AES-1281
Size (H × W)
127 × 115 mm3
Standard
CSA C828-191
Warranty
3 years1

Where it is used

Interface

Readings and settings, with units and ranges where Sinopé publishes them. readable, readable and writable.8

Download
ReadingUnitRange or valuesAccess
Measurements 7
Room temperatureThe temperature the thermostat regulates to. °C - Read only
Heating demandHeating output the thermostat’s control loop is calling for. % 0 to 100 % Read only
Heating stateWhether the output is heating. - idleheat Read only
PowerPower drawn by the heater. W - Read only
VoltageSupply voltage at the thermostat. V - Read only
CurrentCurrent through the heater. A - Read only
EnergyCumulative energy delivered to the heater. kWh - Read only
Controls 3
Occupied setpointTarget temperature while occupied, in 0.5 °C steps. °C 5 to 30 °C Read and write
ModeHeating on or off. - offheat Read and write
Eco mode offsetSetpoint offset for demand response, in 0.5 °C steps. A preset turns it off. °C -10 to 10 °C Read and write
Settings 10
Unoccupied setpointTarget temperature while unoccupied, in 0.5 °C steps. °C 5 to 30 °C Read and write
OccupancyWhich of the two setpoints applies. - occupiedunoccupied Read and write
Control cycle15 seconds for baseboards and convectors, 15 minutes for fan-forced heaters. - 15_sec15_min Read and write
Second displayWhat the small line of the display shows. - autosetpointoutdoor temp Read and write
Outdoor temperature shownAn outdoor temperature written to the thermostat for its display. °C -99.5 to 99.5 °C Read and write
Outdoor temperature timeoutHow long a written outdoor temperature stays valid. s 30 to 64,800 s Read and write
Display unit - celsiusfahrenheit Read and write
Time format - 24h12h Read and write
BacklightBacklight dimming: on demand or sensing. - on_demandsensing Read and write
Keypad lockLocks the thermostat’s buttons. - unlocklock1 Read and write

Occupied and unoccupied heating setpoints are written in 0.5 °C steps from 5 to 30 °C. System mode is off or heat.8

Voltage, current and power come from the standard electrical measurement cluster, and the energy total from the metering cluster, in kWh.8

The control cycle is 15 seconds for baseboards and convectors and 15 minutes for fan-forced heaters. Set it to match the heater before relying on the regulation.28

Eco mode shifts the active setpoint by -10 to +10 °C in 0.5 °C steps for demand response, and has a value that turns it off.8

Setup

  1. Check the load first

    Add up the heaters on the circuit. The total must stay under 16.7 A (4000 W at 240 V) and, for baseboards and convectors, above 2 A. Only resistive heaters may be connected.1

  2. Wire it with the heating off

    Switch off the heating breaker at the panel. Connect the thermostat’s wires to the circuit with the connectors supplied; they are not polarised. Use CO/ALR connectors on aluminium conductors and tighten each connector firmly. Sinopé requires a certified electrician for the installation.2

  3. Close it and restore power

    Replace the cover, lock it and switch the breaker back on. The display shows the room temperature.2

  4. Join the Zigbee network

    Open pairing on the Gateway’s Zigbee network in Edge, then press the thermostat’s two buttons briefly at the same time. The network icon blinks while it connects and stays lit once it has joined.2

  5. Check one reading

    Confirm that Edge identifies it as a Sinopé TH1124ZB. Raise the setpoint above room temperature and check that the power reading matches the heaters’ rated load.

Common questions

When should I use the TH1124ZB instead of the TH1123ZB?
When the heaters on the circuit draw more than 12.5 A (3000 W at 240 V). The TH1124ZB takes up to 16.7 A (4000 W at 240 V). Below 3000 W either will do.1
Does the TH1124ZB need a Sinopé GT130 hub?
No. Sinopé’s installation guide covers pairing with the GT130 or with a compatible Zigbee gateway. It joins the Zigbee radio on an EpiSensor Gateway and Edge reads it locally, without Neviweb.2
Does it report the heater’s energy use?
Yes. It reports voltage, current, power and cumulative energy in kWh. Sinopé’s documents give no metering accuracy class for these readings, so use them to compare rooms and schedules rather than to bill.18
Why does the thermostat feel warm?
That is normal. Sinopé’s support page for the TH1123ZB and TH1124ZB states that the housing can feel warm to the touch.4
How do I reset it to factory settings?
Hold the upper button until the display changes menu, then hold both buttons until CLR appears. Press the upper button once to change N to Y, then press both buttons and release them at once. DONE appears and the thermostat restarts.5
How do I remove it from a Zigbee network?
Hold the up and down buttons together for 10 seconds. The network icon disappears from the display and the thermostat is ready to pair again.6