Bedienungsanleitung Bosch Uni 3000 F (Seite 6 von 12) (Englisch)

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6 | Commissioning

Uni 3000 F6 720 812 901 (2014/10)

4 Commissioning

▶ Ask your contractor to provide information about how the boiler

works and is operated.

▶ Never undertake any modifications or maintenance.

4.1 Preparing the heating system for operation

For the contractor to be able to commission the heating system, observe

the following:

▶ Check that the required operating pressure has been set.

▶ Check the flange connections and other connections for tightness

(water/fuel).

▶ Open the fuel supply to the main fuel shut-off valve.

▶ Switch on the heating system emergency stop switch.

Have your contractor show you how to top up the water

( also Chapter 7.2, page 7).

4.2 Operating the control unit and burner

Start your boiler at the control unit (in this example, Fig. 3:

CFB 930 control). The adjustments made in the control unit will affect

the burner as well. The burner can then be started by the control unit.

For further details, see the operating instructions of the particular

control unit or burner.

▶ Set the boiler temperature controller [2] to 105 °C. Set the ON/OFF

switch [6] to "I" (ON).

Fig. 3 Control unit, example CFB 930 control

[1] High limit safety cut-out

[2] Boiler temperature controller

[3] F1, F2 Fuse

[4] MEC

[5] Burner emergency operation switch

[6] Appliance on/off switch

5 Decommissioning

5.1 Shutting down the heating system

Shut your boiler down via the control unit (e. g. CFB 930 control,

 Fig. 3, page 6). This also switches the burner off automatically.

▶ Set the ON/OFF switch ( Fig. 3, [2]) to "0" (OFF).

▶ Isolate the fuel supply to the burner.

5.2 Shutting down the heating system in an emergency

▶ Never put your life at risk. Your own safety is paramount.

▶ In other cases of danger where there is no actual risk to life and limb,

immediately shut off the main fuel shut-off valve and isolate the

heating system via the fuse in the boiler room or via the heating

system emergency stop switch ( Chapter 1.2, page 3).

▶ Isolate the fuel supply to the burner.

▶ Guard against unintentional re-connection.

Open the automatic air vent valve only briefly for venting.

Observe the operating requirements of BG01 for hot

water boilers (UK).

Follow the control unit's operating instructions.

1 2 3 4 5 6

6 720 806 032-47.1ITL

NOTICE: System damage due to frost.

The heating system can freeze up during a power failure

or if the power supply has been switched off!

▶ Check the "Control unit settings" to ensure the

heating system remains operational (especially when

there is a risk of frost).

Switch off the heating system by means of the fuse in the

boiler room or the heating system emergency stop

switch only in emergency situations that pose an

immediate risk to life and limb.

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