Ochsner AIR BASIC 109, Operating Manual/Installation Manual

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BA_AIR_BASIC_ELW_Multitower_OTE3_SW5x_CC_EN_V08.docx Page 31 of 92
4.2 T200 indoor unit
4.2.1 Appliance description
The buffer tank and the DHW tank with heat
exchanger are arranged on top of each other and
can be separated for handling.
The appliance is fitted with a plastic foam outer
casing and a removable front panel. The appliance
is connected hydraulically and electrically to the
heat pump. All hydraulic connections are at the
top.
Further system components are integrated
alongside the DHW tank and the buffer tank:
Heat pump manager, tank charging pump, high
efficiency circulation pump for one direct heating
circuit, multifunctional assembly with safety valve
and 3-way switching valve, emergency/booster
heater for mono energetic operation
Hydraulic schematic:
1 Heat pump
2 Hot gas
3 Liquid
4 Buffer charging pump
5 Multifunctional assembly
6 Magnesium anode
7 Cable entry
8 Drain stopcock
9 Heating circuit
10 DHW circulation
11 Cold water
12 DHW
13 Connecting hoses
Figure 33: T200 hydraulic schematic
4.2.1.1 DHW tank
The steel tank is fitted internally with a special
direct enamel and a sacrificial anode. The anode
with wear indicator protects the inside of the tank
against corrosion.
The heating water heated by the heat pump is
pumped through an internal indirect coil in the
DHW tank. The internal indirect coil transfers the
absorbed heat to the DHW. The integral heat
pump manager controls DHW heating to the
required temperature.
4.2.1.2 Buffer tank
The steel tank serves to hydraulically separate the
flow rates of the heat pump and the heating
circuit. The heating water heated by the heat
pump is transported to the buffer tank by the tank
charging pump. When there is a demand, the
heating water is supplied to the heating circuit by
the integral heating circuit circulation pump.
4.2.1.3 Heat pump manager (OTE)
The system is controlled via the integral OTE3 heat
pump manager. For adjustment options, see the
controller operating manual.
4.2.1.4 Multifunctional assembly (MFA)
The multifunctional assembly switches between
heating circuit and DHW heating. It also includes
the safety valve, an air vent valve the flow sensor
and the electric emergency heater.
4.2.1.5 Accessories pack
The following components are packed inside the
MULTI TOWER, next to the two pumps:
- Outside temperature sensor
- Adjustable feet
- Drain hose
- Operating manual
Gaskets for the hydraulic connection (heating
circuit flow, heating circuit return, cold water,
DHW) are attached directly at the connections.