Ochsner OLWI 9, Operating Instructions & Installation Instructions

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BA_OLW I OTE3_SW5x_EN_20160815_V2 5 / 48
3 Description of the appliance
3.1 Heat pump OLWI
The appliance is an air/water heat pump which oper-
ates as a heat pump for heating purposes. The appli-
ance extracts heat at a low temperature from the out-
side air and emits it at a higher temperature to the
water
in the heating system.
The water for heating can be heated to a flow tempera-
ture of up to 60 °C.
The appliance has an electrical emergency/auxiliary
heater (DAE) with 8.8 kW rating. In the monovalent
mode, the electrical emergency/auxiliary heater is
activated as soon as the temperature falls below the
bivalent point, so that the heating operation and hot
water heating is guaranteed. In the mono-energetic
operation, the electrical emergency/auxiliary heater is
activated as an auxiliary heater.
Further properties
- Suitable for under-floor and radiator heating
- Low-temperature heating systems are preferred.
- Heat can be extracted down to -20°C outside air
temperature
- The external cladding is of corrosion-protected,
galvanised steel plate with additional stove enam-
elling.
- All components and safety equipment necessary
for operation are built in to the appliance.
- Contains non-flammable safety refrigerant
If the heat pump is to be installed in the
proximity of the sea, ensure that a distance
>2km is maintained between the sea and
the place of installation!
3.2 Function
The heat from the outside air is extracted by means of
an air heat exchanger (evaporator). The refrigerant
vaporises and is then compressed by means of the
compressor. Electrical energy is necessary for this.
The refrigerant is now at a higher temperature level
and transfers the heat from the air via a further heat
exchanger (condenser) to the heating system. The
refrigerant expands and the process begins again.
At air temperatures below ca. +7 °C, the humidity in
the air forms icing on the evaporator fins. This icing is
automatically thawed. The water formed by de-icing is
collected in a thawing sump and drained away by
means of a hose.
The fan switches off during the de-icing phase and the
heat pump circuit is reversed. The heat required for de-
icing is extracted from
the buffer storage tank or heating circuit. At the end of
the de-icing phase the heat pump switches automati-
cally back to the heating circuit
3.3 Scope of delivery
The appliance cladding is delivered in a separate
package.
•
Basic appliance
•
Rating label.
•
Functional module with diverter valve and
heat generator pump
•
Front panel
•
Rear panel
•
Side panels left/right
•
Pipe bend heating circuit flow
•
Pipe bend heating circuit return
Necessary accessories
•
Hydraulic connection group, consisting of:
o
Immersion sleeve
o
Special fittings 5/4“ ET – 5/4“ Sleeve
Nut
o
T-
piece 5/4“-172“-5/4“ IT
•
Sensor set OTE Thermostat
•
Cable temperature sensor
•
Flow rate sensor DN 20 kvs 10
•
Air hoses
•
Wall conduit