What’s this knob for?

[colyboy]

What is the knob in the photo used for and when would you use it?

Colyboy

 

[phillipsheila]

Description​

Supplements the standard display in the cylinder compartment and indicates the operating status of the gas cylinder inside the vehicle. Integrated EisEx regulator heating. (50211-01)

• Read the status of the gas cylinders from inside the vehicle

• See the operating status of the gas cylinders (empty/full) and activate EisEx

• Suitable for DuoControl CS. Note: Black regulators of the new generation ar

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Online Price (inc. VAT)
£134.40

 

[Silver-Fox]

Wine dispenser

 

[ChrisL]

I believe that's the gas control system, switch down is the summer position, switch up is the winter position switch central is off. Winter position also lights a yellow led.

 

[Russell's Dad]

As said above, it's for the gas. On the winter setting the Truma gas regulator is heated to prevent freezing.
I find it really handy for my twin Gas-it refillable bottles. When the red led comes on then the cylinder that was in use is empty. I know then that my auto change regulator has switched to the other bottle and I need to look for LPG refill.
The switch doesn't actually control the flow of gas from the regulator,so if the switch is in the off position the gas will still flow.

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