Bosch 7 KW Manual de instrucciones descargar pdf (Pagina 16)

How to drain the hot water cylinder

1. Turn off the main water supply to the cylinder.

2. Open a hot water tap with a position as low as possible in the building,

in order to reduce the pressure.

3. Remove the pipe connection 3 - Mains cold water in and connect

one end of the hose pipe to the connection. Terminate the other end of

the hose to a drain or to outside. Ensure that the drain end of the hose

is at a lower level than the bottom of the cylinder. The greater the fall

on the hose, the higher the ﬂ ow rate.

4. Disconnect connection 4 - Domestic hot water out.

5. Start the siphon effect by pumping or sucking at the drain end of the

hose.

6. Let the whole volume drain out.

596

79 198 298 471 538

Elanslutningar

506

398

470

517

280,5

494

554

568,5

Valve outlet size

Size of discharge

pipework D1

Size of discharge

pipework D2

Maximum length of

straight pipe

(no bends or elbows)

Deduct the ﬁ gure below from the

maximum length for each bend or

elbow in the discharge pipe

22 mm Up to 9 m 0.8 m

G1/2 15 mm 28 mm Up to 18 m 1.0 m

35 mm Up to 27 m 1.4 m

28 mm Up to 9 m 1.0 m

<G3>/4 22 mm 35 mm Up to 18 m 1.4 m

42 mm Up to 27 m 1.7 m

35 mm Up to 9 m 1.4 m

G1 28 mm 42 mm Up to 18 m 1.7 m

54 mm Up to 27 m 2.3 m

How to ﬂ ush the system & tank

To ﬂ ush the tank use the above proposed setup, add a hose onto the hot

water outlet position number 4 (in the above diagram) and then ﬂ ush the

hot water tank.

>0cm

Connecting the heat pump to the heating system

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Bosch 7 KW Manual de instrucciones Pagina 16

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