OPERATION
WATER HEATER DESCRIPTION
ENGLISH
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3.6 Particular risks
3.6.1 Electric current
WARNING Electric shock
Contacting parts that carry live power is
associated with a direct risk to life. Damaging
the insulation or individual components can
result in a risk to life.
»If you detect damaged insulation,
immediately switch off the power supply
and arrange for the necessary repair.
»Have all electrical work carried out by a
qualified electrician.
3.6.2 Hot surfaces
CAUTION Burning
Contact with hot components can result in
burning.
»When working near hot components, wear
protective clothing and gloves.
»The pipework connected to the hot water
outlet of the water heater can reach
temperatures in excess of 140 °F (60°C).
3.6.3 Refrigerant
The water heater is filled with refrigerant at the factory.
WARNING Freezer burn
Should the water heater leak refrigerant,
avoid contact with the refrigerant or
breathing in any released vapors. Vent the
room concerned.
In normal water heater operation, the refrigerant is
contained in a sealed circuit, hence no risk arises from
the refrigerant.
4. Water heater description
This water heater is an automatic hot water generator
with approx. 80 gallon capacity. The hot water
temperature is factory set to 140 °F (60 °C).
After opening a hot water faucet, the hot water is pushed
out of the water heater by the incoming cold water.
The water heater operates with recirculating air and
consequently requires no outside air supply. The water
heater extracts heat from the ambient air. This heat
is used to heat the water contained inside the tank;
simultaneously electrical energy is used. The demand
for electrical energy and the heat-up time depend on
the temperature of the air drawn in.
When installing the water heater inside, the room where
it is installed will be cooled down during the operation
by 2 to 6 °F (1 to 3 °C).
The water heater also extracts moisture from the air
that creates condensate, which must be drained off. For
this purpose, a condensate drain with strainer plug is
integrated in the bottom of the water heater. This is
where you can connect a hose.
To protect the steel tank against corrosion, the interior
is coated with a special enamel and is furthermore
equipped with a sacrificial anode.
Heat pump function:
A sealed circuit inside the water heater contains a CFC-
free refrigerant (see "Specification/data table"); this does
not deplete ozone and is non-flammable. It evaporates
at low temperatures.
In the evaporator, where heat is extracted from the
outside air, the refrigerant changes from its liquid into
its gaseous state. A compressor draws the process
medium in and compresses it. The increase in pressure
raises the refrigerant temperature.
This process requires electrical energy. The energy
(motor heat) is not lost, but reaches the condenser
downstream together with the compressed refrigerant.
Here, the process medium transfers heat to the water
tank. An expansion valve then reduces the still prevalent
pressure and the circular process starts again.
4.1 Function description
4.1.1 Heat pump operation
In heat pump mode, the heat pump unit located in
the upper section of the water heater extracts heating
energy from the ambient air.
This is the standard operating mode, which can be
used within the limits of scope of the water heater (see
chapter "Specification/data table").
If the water heater was separated from
the power supply during operation, the
compressor will only restart if the pressure inside
the refrigerant circuit has been balanced. Pressure
balance can only be created after three minutes.
