Bosch WORCESTER GREENSTORE User Manual download pdf (Page 7)

7

Component parts of the heat pump

Component parts of the heat pump

Greenstore Combi

Reset button

Press in the button if the overheat

protector on the electric cassette

has tripped. The button is located

on the side.

Heat carrier pump

The pump ensures the primary

water circulates within the heating

system or domestic hot water

systems.

Compressor

The compressor increases the

pressure of the refrigerant.

The temperature of the vapour

increases from 0ºC up to approxi-

mately +130ºC. The compressor is

insulated to reduce the noise level.

Electrical connections

Connections for the mains supply

as well as sensors.

Control panel

The control panel has a back lit

menu display with four rows of

text information, three buttons and

a dial.

Distribution box

The distribution box is enclosed.

It houses a reset function for the

motor cut-out as well as miniature

circuit breakers (MCB) for the

heat pump and electric heater.

Heat transfer ﬂ uid pump

The pump is insulated and features

an anti-corrosive ﬁ nish. It ensures

the heat transfer ﬂ uid circulates

from the energy source to the heat

pump.

Control unit

The control unit is enclosed. It

controls and monitors all heat

pump functions.

Expansion valve

Lowers the pressure and regulates

the amount of refrigerant that

enters the evaporator.

Sight glass

Sight glass to check the level in

the refrigerant circuit. Gas bubbles

should not form continuously in the

sight glass when the heat pump is

running. However, there might be

bubbles for several minutes when the

heat pump is started. These will then

disappear

Flexible hoses

The hoses counteract vibra-

tions in the heat pump.

Evaporator

The evaporator evaporates the

refrigerant to gas and transfers

heat from the heat transfer ﬂ uid to

the refrigerant circuit.

Electric heater

The electric heater is used to

provide extra output in cold

weather conditions, with large

water consumption and at hot

water peaks.

Three-way valve

The valve switches between

heating the heating water and

domestic hot water.

Condenser (not visable)

The condenser condenses the

refrigerant vapour to a liquid

again and transfers the heat to the

heating system.

Hot water cylinder

The cylinder is double-shelled and

holds approximately 185 litres of

domestic hot water and 40 litres of

primary water.

Venting nipple

The nipple is used to vent the

primary water in the hot water

cylinder.

Softstart

Reduces the compressors starting

current.

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