Lw Model - Bosch EHP 6-11 LW User And Installation Manual

LW model

Three-way valve
The valve switches between
heating the heating water and hot
water.
Particle fi lter
The fi lter can be opened for easy
cleaning. It also has a shut off
function.
Electric cassette
The electric cassette is used
to provide extra output in cold
weather conditions, with large
water consumption and at hot
water peaks.
Reset button
Press in the button if the overheat
protector on the electric cassette
has tripped. The button is located
on the side.
Condenser
The condenser condenses the
vapour to fl uid again and transfers
the heat to the heating system.
Circulation pump
The pump ensures the heating
water circulates within the heating
system.
Flexible hoses
The hoses counteract vibra-
tions in the heat pump.
Compressor
The compressor increases the
pressure of the refrigerant.
The temperature of the vapour
increases from 0ºC to approxi-
mately +100ºC. The compressor is
insulated to reduce the noise level.
Sight glass
Sight glass to check the level in the
refrigerant circuit. Air bubbles must
not form in the sight glass when the
heat pump is running. However, there
might be bubbles when the heat
pump is started and stopped.
9
Component parts of the heat pump
Electrical connections
Connections for the mains supply
as well as sensors.
Control panel
The control panel has a back-
ground 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 cassette.
Control unit
The control unit is enclosed. It
controls and monitors all heat
pump functions.
Evaporator
The evaporator evaporates the
refrigerant to gas and transfers
heat from the heat transfer fl uid to
the refrigerant circuit.
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, e.g. the rock to the heat
pump.
Expansion valve
Lowers the pressure of the
refrigerant that enters the evapora-
tor and collects energy from, e.g.
the rock.