Karmann Colorado Operating Instructions Manual - Gas Installation

Heating and Hot Water Supply

GAS INSTALLATION

5-4

At temperatures below 3°C the antifreeze

safeguard will drain the boiler automatically

at the drain valve to prevent any frost

damage to the unit.

If the temperature drops below the response

value during operation, turn the knob C to on

the control element to winter mode (down)

and close the valve by pulling the button out.

The valve will only close from an ambient

temperature of 8°C.

Filling the boiler

1. Pull the button on the safety valve out. At

temperatures below 8°C, switch on the

heating first so that the valve will not open.

2. Switch on water pump at control panel 

(p. 6-1).

3. Set single-lever mixer tap in the bathroom

or kitchen to "Hot" and leave open until the

water flows in a powerful stream.

Note

When filling the boiler, take care to ensure

that the drain valve for fresh water pipes is

closed (p. 7-2).

E = Yellow pilot light "Boiler heat-up phase" 

Lights up during the heating-up phase of 

the boiler. When the water or air tempera

ture set has been reached the light goes 

off.

Start-up of the heating and boiler:

1. Switch on power supply at 

control panel (p. 6-1).

2. Open main valve on gas cylinder

and shut-off valve (p. 5-2).

3. Set desired temperature stage at

knob A.

4. Set knob C to desired mode of 

operation.

Switching off after extended shut-down:

1.  Bring knob C to the middle position.

2. Drain boiler.

3.  Close gas valves.

Note

Note also the attached original operating

instructions. 

Safety/drain valve with antifreeze

The safety/drain valve is mounted on the floor

in front of the boiler.

When the button is out the valve is closed. To

drain the boiler, press the button in.

Note

The valve only works when the power supply

is guaranteed. If the body battery is

disconnected or discharged, the valve will

open and the boiler will drain.