GF83.70-P-3057P Activate Heater Immediately With Radio Remote Control, Function

GF83.70-P-3057P Activate Heater Immediately With Radio Remote Control, Function

MODEL 203.0 /2 /7 as of 24.4.04
- with CODE (228) Stationary heater
- up to Model Year 8







1 Cut-in signal
2 Switch-on signal feedback (as of 1.12.04)
3 Inquiry and feedback for ventilating/heating
4 LED actuation
A2/22 Telephone antenna
A2/53 Telephone/CTEL/STH radio remote control antenna splitter
A6/1 STH remote control receiver
A6n1 STH control unit
A8/3 STH remote control transmitter
N22 AAC control and operating unit (without code (581) Comfort automatic air conditioning)
N22/7 Comfort AAC control and operating unit (with code (581) Comfort automatic air conditioning)
N72 Lower control panel control unit
N72s12 STH switch
CAN B Controller area network bus, class B (interior compartment) (CAN B)

The range of the STH radio remote control transmitter (A8/3) is approx. 300 m. External influences such as:
- Interfering radio sources,
- large obstructions,
- unfavorable position to the vehicle or
- transmitting from closed rooms will reduce the effective range.

Function requirements
- Circuit 30
- Tank content > 19 %

Function
1 Operate "ON" button at STH radio remote control transmitter (A8/3).
2 The telephone antenna (A2/22) registers the cut-in signal and forwards it via the telephone/portable CTEL/STH radio remote control antenna splitter (A2/53) to the STH radio remote control receiver (A6/1).

In vehicles as of 1.12.04 correct reception of the switch-on signal by the STH radio remote control receiver (A6/1) is confirmed at the STH radio remote control transmitter (A8/3). If the radio connection is OK, the LED illuminates with a steady green light for 2 seconds after the time of signal transmission. If the radio connection is not OK, the LED flashes green for 2 seconds.

3 The STH radio remote control receiver (A6/1) transmits the switch-on signal to the STH control unit (A6n1).
4 The STH control unit (A6n1) starts the "Heat or Ventilate" inquiry in the AAC control and operating unit (N22) or the comfort AAC (C-AAC) control and operating unit (N22/7) via CAN-B.
5 The AAC control and operating unit (N22) or the comfort AAC (C-AAC) control and operating unit (N22/7) is activated and compares the current interior temperature to the preset temperature value.
6.1 Interior temperature < than the preset temperature value ("Heat" request):
- the AAC control and operating unit (N22) or the Comfort AAC (C-AAC) control and operating unit (N22/7) transmits the "Heat" signal to the STH control unit (A6n1) via CAN-B.

6.2 Interior temperature > than the preset temperature value ("Stationary ventilation" request):
- the AAC control and operating unit (N22) or the comfort AAC (C-AAC) control and operating unit (N22/7) transmits the "Ventilate" signal to the STH control unit (A6n1) via CAN-B.

The red LED in the STH switch (N72s12) indicates stationary heating and the blue LED indicates stationary ventilation.