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451903.66.17 · FD 9908
EN-3
LWP 200E
English
If there are any fireplaces in the residential building (e.g.
gas-fired water heaters, tile stoves, fireplaces, etc.) it has to
be ensured that the combustion air flow is supplied inde-
pendently of the ventilation system while such fireplaces are
in use. (Please contact your local chimney sweep since reg-
ulations may be enforced differently in different regions).
In general, extractor hoods in recirculating air operation and
condenser tumblers (without outgoing air ducts) should be
used in residential buildings with ventilation systems.
When a vented tumble drier or an extractor hood in exhaust
air operation is operated it must be ensured that an ade-
quate air volume flow is supplied independently of the venti-
lation system.
The valid standards and directives must be observed when in-
stalling the ventilation system for the LWP 200:
This heat pump is designed for use in a domestic environ-
ment according to Article 1, Paragraph 2 k) of EU directive
2006/42/EU (machinery directive) and is thus subject to the
requirements of EU directive 2014/35/EU (low-voltage direc-
tive). It is thus also intended for use by non-professionals for
heating shops, offices and other similar working environ-
ments, agricultural establishments and hotels, guesthouses
and other residential buildings.
ATTENTION!
!!
Work on the domestic hot water heat pump is to be performed by
qualified personnel only!
Observe accident prevention regulations!
2 Description
2.1 General
The domestic hot water heat pump is a ready-to-use heating de-
vice whose main components are a domestic hot water cylinder,
the components of the refrigerant, air and water circuits and the
control, regulation and monitoring devices required for automatic
operation.
The domestic hot water heat pump is supplied with electrical en-
ergy and uses the heat stored in the intake air for domestic hot
water preparation. Domestic hot water heat pumps have an addi-
tional ventilation function. The devices are also equipped with an
electric heating element (1.5 kW) as standard.
The temperature of the intake air (the heat source) provides the
reference value for the energy consumption and the domestic hot
water preparation heating-up time.
For this reason, an air duct system (DN 125, max. length 10 m)
can be connected to the standard spigot of the domestic hot
water heat pump for targeted waste heat recovery. For the heat
pump to be operated effectively, air short-circuits between the
drawn-in air and the blown-out air must always be avoided. This
can, for example, be achieved through the use of a flexible air
hose on the intake and outlet side.
The falling temperature of the drawn-in air reduces the heat
pump output and extends the heating-up periods. In order for the
heat pump to be operated economically, the air intake tempera-
ture should not fall below 18 °C. If the air intake temperature falls
below12 °C ±1.5 (reset value 3 K ±1.5), the heat pump is
switched off.
Under this operating limit, domestic hot water preparation can be
carried out using a standard heating element (1.5 kW) by manual
regulation.
The electric heating element fulfills three additional
functions:
Supplementary heating
The heat-up time is approximately halved by switching on
the heating element (via the "Heating element" switch) in ad-
dition to the heat pump.
Emergency heating
In the event of a heat pump fault, the domestic hot water
supply is maintained by the heating element.
Higher water temperature
If the required hot water temperature is higher than the tem-
perature achievable by the heat pump (approx. 60 °C), it can
be raised to a max. of 85 °C by means of the heating ele-
ment.
ATTENTION!
!!
With hot water temperatures of > 60 °C, the heat pump is switched off. An
additional hot water temperature increase can only be done by switching
on the heating element. The factory setting for the heating element
controller is 65 °C.
- DIN 1946 T1, T2, T6 Ventilation and air conditioning
- VDI 2088 Ventilation systems in residential buildings
- VDI 2087 Air ducts
