Vaillant ecoMAX 635 Installation Manual download pdf (Page 10)

4 Operation

Instructions for use ecoMAX10

4.7 Turning the boiler OFF

(ecoMAX 800 series only)

4.7.1 To turn OFF the central heating only (Summer

mode)

Fig. B.12 To turn OFF the central heating only (Summer mode)

• Turn the maximum radiator temperature control knob

used to control the heating supply temperature (1) all

the way to the left.

Note!

You can switch off the heating operation in sum-

mer, for example, but the boiler will continue to

provide domestic hot water whenever a hot

water tap is opened.

4.7.2 To turn OFF central heating and hot water for

short periods of time

Fig. B.13 Complete shutdown

• Turn the main ON/OFF control (2) to the “0” position.

If you want to turn the ecoMAX boiler OFF for a longer

period of time (e.g. holidays), and there is no danger of

frost, then you should also turn off the gas supply, the

cold water service valve (see page 5) and the electrical

supply. Please note the frost protection hints detailed in

these instructions.

4.8 Turning the boiler OFF (ecoMAX 600 series only)

4.8.1 To turn OFF the central heating

• Turn the maximum radiator temperature control knob

used to control the heating supply temperature (1) all

the way to the left.

Note!

Do not turn the EcoMAX 600 boiler OFF if a hot

water cylinder is also incorporated in the system

unless there is no demand for domestic hot

water.

4.8.2 To turn boiler OFF for short periods of time

• Turn the main ON/OFF control (2) to the “0” position.

Note!

Do not turn the EcoMAX 600 boiler OFF if a hot

water cylinder is also incorporated in the system

unless there is no demand for domestic hot

water.

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