eurotronic Comet Zigbee Energy Saving Radiator Thermostat Instruction Manual

Eurotronic Comet Manual: Questions and Answers

Eurotronic Comet specifications

Full specifications, page 18

How do I turn off the Eurotronic Comet thermostat?

Press the Mode button until the display shows "--". Instruction Manual, p. 13

What do the error codes on a thermostat display mean?

E1 indicates valve adaptation failed. E2 means valve movement is too slow. E3 shows the valve is not moving.

Instruction Manual, p. 16

What happens when the Eurotronic Comet detects an open window?

The device switches to off mode for 10 minutes, then returns to the previously active mode. Window detection doesn't run in Manufacturer Specific Mode. Instruction Manual, p. 13

Can I adjust the setback temperature directly on the Eurotronic Comet?

No. You can only change the setback mode temperature by radio. Local buttons adjust only the heating mode setpoint. Instruction Manual, p. 13

How do I connect Eurotronic Comet to my Zigbee network?

Put your primary Zigbee controller into include mode, then the device joins the network.

1. Remove the battery cover by pulling it upwards at the notch.
2. Insert batteries with correct polarity. Do not use rechargeable batteries.
3. Reattach the battery cover by pressing until it clicks.
4. Put your primary Zigbee controller into include mode.
5. When successful, the LED shows the received node ID. Instruction Manual, p. 7

How do I know if the Eurotronic Comet is connected to my network?

The radio symbol LED stays on when connection is established. Instruction Manual, p. 6

How do I factory reset the Eurotronic Comet?

Press and hold the button in the battery compartment for 10 seconds. Instruction Manual, p. 5

Difference between radiator not heating up versus not cooling down on Eurotronic Comet?

Not heating: valve won't open, likely calcified. Not cooling: valve won't close completely, seal may have shifted. Instruction Manual, p. 17

Where is the button located on the Eurotronic Comet for exclusion and factory reset?

In the battery compartment. Instruction Manual, p. 12

How long must you hold the battery compartment button on Eurotronic Comet for factory reset?

At least 10 seconds. A counter runs from the 5th second onward; keep pressing until 10 appears on the display. Instruction Manual, p. 12

How do I perform adaptation on the Eurotronic Comet thermostat if batteries were removed and reinserted?

After reinserting batteries, wait for "Ad" to appear on the display. Hold both keys together for 3 seconds. Instruction Manual, p. 10

Eurotronic Comet compared with other Eurotronic thermostats

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