Operating manual for the Telestart T70/T80 remote control of the Webasto Thermo Top pre-heater/heater

Operating instructions for the Telestart T70/T80 remote control of the Webasto pre-heater/heater

Heater operation — general instructions

1. Any claims will be considered by Webasto only if there is no evidence of non-compliance with this Manual and the installation instructions, or of work carried out on the heater by non-Webasto-certified specialists, or of the use of non-original spare parts.

2. The year of first commissioning must be marked on the factory nameplate by erasing the other year markings.

3. Standard operating conditions for automotive equipment must be observed. In particular, do not subject the heater or its components to immersion in water, mechanical impact, high temperatures (above +85°C), humid air (above 95%), corrosive substances, electrical discharges, etc.

4. Due to the risk of poisoning and suffocation, the heater must not be operated (including by programmable timer or remote control systems) in enclosed spaces (e.g., garages) unless they are equipped with exhaust ventilation.

5. At filling stations, as well as in locations where flammable vapors and dust may form (near fuel, coal, grain storage facilities, etc.), the heater must be switched off.

6. In case of heavy smoke, unusual noises, or the smell of fuel from the heater, it must be disabled by removing the fuse and checked at a Webasto service center.

7. Only the fuel indicated on the heater’s factory plate may be used (gasoline for gasoline heaters, diesel fuel for diesel heaters). Fuel and additives must comply with applicable standards, including for operation at low temperatures.

8. The coolant level in the circuit must comply with the vehicle manufacturer’s specifications. The coolant must contain at least 20% antifreeze grades approved by the vehicle manufacturer.

9. The heater should be switched on once a month for 10 minutes with a cold engine and the vehicle fan at minimum power; it is also recommended to have it inspected at a Webasto service center once a year, no later than the start of the heating season.

(!) To avoid discharging the battery, do not switch on the heater several times in a row for a total of more than 60 minutes. After heater operation, the engine should run for at least the same amount of time as the heater.

Depending on the configuration, the heater is controlled using a timer or the Telestart remote control system (see the descriptions below).

The heater can operate in "winter" (heating) or "summer" (ventilation) mode. In heating mode, the heater warms the coolant in the vehicle’s liquid circuit, its circulation pump pumps it through the engine and the vehicle’s heating radiator, and the control unit automatically starts the vehicle’s heating fan. In ventilation mode, there is no warming or circulation of the coolant; only the vehicle’s heating fan runs to ventilate the cabin. See below for mode switching. At the factory, the heater is set to heating mode.

If the heater is in heating mode, set the vehicle heating system to "warm" before switching the heater on. If the vehicle heating fan has three stages, set its controller to stage 1; if it has four stages, set it to stage 2; if the fan power is continuously adjustable, set it to at least 1/3 of full power.

Using the Webasto Telestart T70/T80 remote control

With the Webasto Telestart T80, the following can be controlled remotely at distances up to 600 m: Webasto heating devices Thermo Top, Thermo Top T, Thermo Top Z/C, and Thermo Top E, or the vehicle fan.

The Telestart T80 provides confirmation of signal reception.

To activate the vehicle fan (ventilation of the vehicle interior), the transmitter mode must be changed. After activation, the operating duration is limited by the receiver with the transmitter being used.

Maximum range is achieved in open terrain. In built-up areas, a reduction in range should be expected.

Elevated terrain can increase the range.

(!) Attention!
When pairing the transmitter and when switching the heater on/off in heating or ventilation mode, the transmitter must be at least 2 m away from the antenna (otherwise, due to an excessively strong signal, the heater may be locked). If this is not possible, cover the transmitter with your hand!

Pairing (teaching) the Telestart transmitter

1. Insert the batteries into the battery compartment.

2. Remove the 1 A (black) fuse from the heater’s fuse holder (power interruption).

3. Wait at least 5 seconds.

4. Reinsert the fuse into the heater’s fuse holder and, within 5 seconds, press and hold the transmitter’s OFF button for at least 1 second.

5. Pairing is complete.

Pairing a second or third handheld transmitter is performed in the same manner.

(!) NOTE:
The pairing process may be repeated as often as needed. The oldest transmitter data currently stored will be overwritten.

Check the operating mode

Press and hold the ON and OFF buttons simultaneously.

The LED is steady:
• red light = heating mode
• green light = ventilation mode

The LED goes out:
• when the buttons are released, or
• after 10 seconds

Change the operating mode

Press the ON and OFF buttons simultaneously twice within one second.

On the second press, the LED changes color and remains lit until the buttons are released.

When the buttons are released, the new mode is saved to memory.

Transmitter feedback when switching on and off

The signal has been received and the heating device/vehicle fan has been switched on or off

The LED on the key fob transmitter lights for 2 seconds:

• red light = heating mode
• green light = ventilation mode

The signal was not transmitted correctly. After changing the parking location, repeat the transmission process.

The LED on the key fob flashes for 2 seconds.

Switching on the heating device or ventilation

Hold the handheld transmitter with the antenna vertically upward and keep the ON key pressed until the LED lights (approx. 1 second).

A response from the Telestart unit in the vehicle follows.

The LED on the handheld transmitter indicates whether the signal has been received. After acknowledgment of heater operation or alarm, short flashing signals (every 2 seconds) indicate ongoing operation.

The operation indication goes out:

• after the end of the preset operating duration.
• after switching off via Telestart.

(!) Note:
In heating mode, before leaving the vehicle, set the vehicle’s heating to "warm". For the vehicle fan in heating and ventilation modes: for a 3-stage fan set stage 1, for a 4-stage fan set stage 2. For a continuously adjustable fan, set approximately 1/3 power.

Switching off the heating device or ventilation

Hold the handheld transmitter with the antenna vertically upward and keep the OFF key pressed until the LED lights (approx. 1 second).

A response from the Telestart unit in the vehicle follows.

Switching off using the switch

If the heating device was switched on using Telestart, press the switch once to switch it off.

Switching on and off using the switch

Indication of heating or ventilation operation with the engine not running.

(!) Note:
When switching on using the switch, the mode and operating duration selected will always be those most recently used via Telestart T70/T80 (heating or ventilation with the engine not running).

Switching on using the preselection timer

The operating mode is indicated on the preselection timer.

The display backlight is on.

(!) Note:
When switching on with the preselection timer, the mode (heating or ventilation with the engine not running) is always the one most recently used via Telestart T80. The operating duration, however, is determined by the preselection timer.

Switching off using the preselection timer

If the heating device was switched on using Telestart, press the instantaneous heating button twice to switch the heating device off.

Check and set the operating duration

The operating duration of the heating device or the vehicle fan can be set on the transmitter in 10-minute increments.

At the factory, the operating duration is set to 30 minutes.

(!) Note:
For Thermo Top and Thermo Top T heaters in heating mode, set the operating duration to 20 or 30 minutes. For Thermo Top Z/C and Thermo Top E heaters, it is recommended to set the heating time in accordance with the planned trip duration.

Example: the vehicle is used for commuting to work and back.

Check the operating duration

Press the ON and OFF buttons simultaneously three times within one second.

(!) Note:
The first flash that occurs immediately upon the third simultaneous button press must be counted together with the others. The LED flashes according to the set operating duration.

Setting the operating duration

Pressing the OFF button selects the next operating duration:

• do not press any button for 10 seconds, or
• press the ON button

Restore factory settings

Press the ON and OFF buttons simultaneously for approximately 10 seconds until the LED goes out.

Factory setting: heating mode, 30 minutes.

Battery check

Press the ON or OFF button.

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