GF83.70-P-4204SXA STH Radio Remote Control Transmitter Component Description

GF83.70-P-4204SXA STH Radio Remote Control Transmitter Component Description
- with CODE (228) Stationary heater [models 216.3, 221.0/1 as of 1.6.06]

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Component Identification:

Design
The stationary heater transmitter essentially consists of a radio transmitter, two-way radio receiver and subsequent displays and controls:
^ Display (1)
^ Right arrow button (2)
^ Left arrow button (5)
^ ON button (4)
^ OFF button (3)

Task
The stationary heater transmitter can:
^ switch the stationary heater (STH) on and off
^ set/activate/deactivate the departure time
^ call up the stationary heater operating condition

Model 221:
The telephone antenna (A2/49a1) receives the radio signal and routes it via the telephone/portable CTEL/STH radio remote control antenna splitter (A2/53) (only for code (386) Preinstallation for telephone "Handy", UPCI system or code (388) Telephone "Handy", UPCI system) to the STH radio remote control receiver (A6/1). From there the request is forwarded to the STH or HB control unit (A6n1).

Model 216:
The stationary heater antenna (Telestart) (A2/27) receives the radio signal and forwards it to the stationary heater receiver. From there the request is forwarded to the STH control unit (A6n1).

The STH transmitter has a max. range of approx. 300 m (depending on the environment).

Call up/set/activate departure times
Departure times can be called up, changed, activated or deactivated. All changes are stored in the STH control unit and are thus also available to the COMAND controller unit (A40/3).

Call up departure times
A single press of one of the arrow buttons on the stationary heater transmitter shows the operating condition shown of the stationary heater on the display. Pressing the "right" arrow button again causes the first of three optional departure times to be shown. Another press shows the second departure time and another press shows the third departure time.
Departure times are only shown in the stationary heater transmitter, not stored. Therefore, the display function requires constant communication with the STH control unit.

Set departure time
To call up the set mode, the ON and OFF buttons have to be pressed simultaneously within a period of approx. 0.7 s. When the set mode is activated, the clock symbol flashes on and off in the display.
The set procedure is performed using the arrow buttons. To accept the new time setting, the ON and OFF buttons have to again be pressed simultaneously within a period of approx. 0.7 s.
If there is no wireless connection to the vehicle at the time of acceptance attempt, the new time setting is discarded.

Activate departure time
To activate a departure time the ON button has to be pressed after calling up the required time.
When activating the departure time, the stationary heater queries the component status and performs a component test if required.

Depending on the result, either the activated departure time is shown on the display or a fault message.

Deactivate departure time
All it takes to deactivate any departure time is calling up the departure time 1 and pressing the OFF button with a wireless connection established. After deactivation the display shows the operating condition.

Query operating condition
The operating condition can be queried at any given time with a single press of one of the arrow buttons on the stationary heater transmitter, irrespective of the manner in which the stationary heater is activated. The corresponding stationary heater status is shown on the display.