Viessmann VD2 Series Instructions d'exploitation télécharger pdf (Page 14)

Switching on and off

Starting up the heating system

Vitocontrol-S, VD2/CT3/CM2

The initial start-up and matching of the control unit to local conditions and the

structural characteristics of the building must be carried out by your heating

contractor.

1. Check the pressure of the heating

system on the manometer.

If the needle is below the red

marker, the system pressure is too

low – in which case add more water

or contact your heating contractor.

2. Open the shut-off valves in the oil

pipes (at the boiler) or open the gas

shut-off valve, whichever is

applicable.

3. Switch on the power supply voltage,

e.g. at the separate fuse or a power

supply disconnect switch.

4. Switch on the heating system

on/off switch ”8”; the operating

status is indicated by the green lamp

and, after a short time, the boiler

temperature appears in the display

window.

Your heating system is

installed and the remote controls are

now ready for operation.

Shutting down the heating system

Vitocontrol-S, VD2/CT3/CM2

If you do not want to use your heating system temporarily, select standby

operation on the Vitocontrol-S, VD2/CT3/CM2 (see “Selecting the heating

program”).

If you want to switch off only one boiler in the heating system, select standby

operation on the corresponding Vitotronic 100, GC1.

If you do not want to use your heating system for a long period (several months),

you should shut down the system.

We advise you to contact your heating contractor before and after shutting down

the heating system for long periods. Your heating contractor will take any

necessary action, e.g. for frost protection of the system or to safeguard the heat

exchange surfaces.

1. Switch off the heating system

on/off switch ”8” on all control

units.

The green lamp (operating status

indicator) goes out.

2. Close the shut-off valves in the oil

pipes (at the tank and filter) or close

the gas shut-off valve, whichever is

applicable.

3. Switch off the main power supply,

e.g. at the separate fuse or a main

electrical isolator switch. The power

supply to the system is now

switched off. There is no frost

protection.

Please note:

The settings of the control unit

remain intact.

5351 341 v1.2

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Viessmann VD2 Series Instructions d'exploitation Page 14

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