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aIr | watEr HEat pUmp wpl 33
Function
Heat is extracted from the outside air
at temperatures ranging from +30 °C
to –20 °C by the heat exchanger on
the air side (evaporator). Heating
water is heated to flow temperature
levels in the heat exchanger on
the water side (condenser) by this
extracted heat and additional heat
from the electrical power used by
the compressor. the heat pump
manager (wPM) matches the heat
pump heating output in two stages
to the actual heat demand. At air
temperatures below approx. +10 °C,
the humidity in the air precipitates as
hoarfrost on the evaporator fins. Any
hoarfrost is automatically defrosted.
water created from this defrosting
collects in the defrost pan and is
drained off via a hose. the fan is
switched oFF and the heat pump
circuit is reversed to activate the
defrost cycle. the energy required for
defrosting is drawn from the heating
system. the heat pump automatically
reverts to heating mode at the end of
the defrost cycle.
Appliance description
High flexibility with a low space
requirement through compact design
for optional internal or external
installation. the metal enclosure is
zinc-plated and finished in a white
stove enamel. the booster heater is
fitted as standard to enable mono-
energetic operation and high DHw
temperatures. the evaporator is
defrosted by reversing the cycle.
Heating water up to 75 °C can flow
through the heat pump in idle mode.
it is equipped as standard with all
safety equipment, such as a high/low
pressure limiter, frost protection and
the necessary starting current limiter.
the heat pump is filled with
HCFC-free r407 C refrigerant. the
heat pump is controlled via a bUs
cable.
A
t a glance
For fully automatic heating
water heating up to +60 °C flow
temperature
suitable for underfloor heating
systems and systems with
radiators; low temperature
heating systems are preferred, as
these achieve a higher coefficient
of performance
extracts energy from the outside
air, right down to -20 °C outside
temperature
Comprises all components
required for its function and
safety
Central control of the heating
system and safety functions
through the heat pump manager
(essential accessory)
Corrosion-protected, external
casing panels made from zinc-
plated sheet steel plus stove
enamelled finish; internal airways
made from corrosion-resistant
aluminium sheet
Compact design, therefore modest
space requirements for internal or
external installations
test symbol of independent test
bodies (see type plate)
Contains non-combustible r407C
safety refrigerant
Safety and quality
Содержание Heat pumps
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