Panasonic Aquarea WH-MDF06E3E5 series - Page 18

6 – 18 Aquarea air/water heat pump – Installation manual for compact systems 03 / 2013
Hydraulic installation
Legend
M
3-way directional valve/
3-way mixer
Drain funnel
Shutoff valve
Pressure-reducing valve
min.
50
l
Storage tank
for minimum volume
Manometer
Pump
Non-return valve
Dirt trap
Pressure relief valve
Temperature sensor
Thermostatic radiator valve /
Single room controller valve
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Water tapping point
Return
Supply
Control wire
Sample hydraulic installation with water heating and heating system (see Aquarea design handbook for other examples)
1
Cold water connection
2
Room thermostat
3
Outside temperature sensor
(integrated in outdoor unit)
4
Heating circuit mixer closed-loop control
(to be provided by customer)
5
Hot-water tank WH-TD20B3E5
CLOSE OPEN N
1 2 3 4
5 6 7 8 9 10
11 12 13 14 15 16
17 18
19 20
21
22 23
CLOSE OPEN CLOSE OPEN N
COOL HEAT N L
N
M
M
1
2
3
4
5
min.
50
l
Schematic diagram – the relevant standards and directives must be observed!
Description of the functions of the sample hydraulic installation with water heating and heating
The hot-water tank
5
is supplied with heat as an alternative to the heating circuits. For this purpose, the heat
pump controller opens the three-way directional valve towards the hot-water tank. Then, the hot-water tank is
charged to the target temperature with appropriate supply temperature.
In heating mode, the heat pump controller opens the three-way directional valve towards the heating circuits
and supplies
them with heat. The supply temperature is controlled based on the outside temperature
3
and
corresponds to the required temperature of the hottest heating circuit for mixed heating circuits. Heating circuits
with lower supply temperatures must be adjusted to the right temperature using heating circuit mixers
4
(to
be provided by the customer) by adding return heating water. A room thermostat
2
(to be provided by cus-
tomer) deactivates heating mode of the heat pump when it reaches the target room temperature and prevents
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and heating circuit mixers.
Vessel for increasing the total water volume -
to be used when the total volume is lower
than the minimum volume.