Bosch WORCESTER GREENSTORE Installation Manual download pdf (Page 3)

WATER SUPPLY

The Worcester Greenstore cylinder has an optimum working

pressure of 3 bar (regulated by the inlet control set) and is

capable of delivering upto 50 litres per minute.

The maximum possible water demand should be assessed

taking into consideration that both hot and cold services are

supplied simultaneously from the mains.

The water supply should be checked to ensure it can meet

these requirements. If necessary consult the local water

authority regarding the likely pressure and ﬂow rate availability.

If measuring the water pressure note that a high static (no

ﬂow) mains pressure is no guarantee of good ﬂow availability.

In a domestic installation 1.5 bar and 25 l/m should be

regarded as the minimum requirement. The maximum mains

pressure for the inlet control is 16 bar.

Consideration should be given to upgrading existing 1/2”

(15mm) cold mains pipework to a larger size if the

recommended minimum pressure/ﬂowrate is not being

achieved.

SITING THE UNIT

Outlets that are above or at some distance from the Greenstore

cylinder, can still be supplied with water.

Outlets above the Greenstore cylinder will reduce the outlet

pressure available by 0.1 bar for every 1 metre of height

difference.

Site the unit to minimise “dead leg” distances especially to the

point of most frequent use.

The unit should be protected from frost. Particular care is

needed if siting in a garage or outbuilding. All exposed

pipework must be insulated.

Greenstore cylinders must be installed upright on a ﬂat base

capable of supporting the weight of the cylinder when full of

water

(see technical speciﬁcation section for weights).

The discharge pipework from the safety valves should fall

continuously and terminate safely.

SCHEMATIC DIAGRAM

Worcester Bosch Greenstore

Notes:

The pressure reducing valve, non return valve and expansion

relief valve are combined together in the inlet control set.

Consideration should be given for servicing and repair, when

siting the cylinder.

The cylinder position should be taken into consideration

when siting the Heat Pump.

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Bosch WORCESTER GREENSTORE Installation Manual Page 3

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