Panasonic WH-MDF09C3E5 Installation Manual page 35

Description of the functions of the sample hydraulic installation with water heating and heating
The hot-water tank is supplied with heat as an alternative to the heating circuits . For this purpose, the heat
5
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
corresponds to the required temperature of the hottest heating circuit for mixed heating circuits . Heating cir-
cuits with lower supply temperatures must be adjusted to the right temperature using heating circuit mixers
(to be provided by the customer) by adding return heating water . A room thermostat
customer) deactivates heating mode of the heat pump when it reaches the target room temperature and pre-
vents further activation and deactivation of the heat pump . An overflow valve between the supply and return
pipes ensures that the minimum volume flow of the heat pump is guaranteed, even with thermostatic radiator
valves and heating circuit mixers .
1 2 3 4 5 6 7 8
3
Cold water connection
1
2 Room thermostat
Sample hydraulic installation with water heating and heating system (see Aquarea design handbook for other examples)
Legend
3-way directional valve/
M 3-way mixer
Drain funnel
Shutoff valve
Pressure-reducing valve
Storage tank
min.
50 l
for minimum volume
Aquarea air/water heat pump – Installation manual for monobloc and split systems C, D and E series 05 / 2014
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
2
M
min.
50 l
Vessel for increasing the total water volume -
to be used when the total volume is lower
than the minimum volume .
Outside temperature sensor
3
(integrated in outdoor unit)
Manometer
Pump
Non-return valve
Dirt trap
Pressure relief valve
Temperature sensor
Hydraulic installation for monobloc systems
M
5
Heating circuit mixer closed-loop control
4
(to be provided by customer)
5 Hot-water tank WH-TD20B3E5
and
3
(to be provided by
2
4
1
Thermostatic radiator valve /
Single room controller valve
Overflow valve
Water tapping point
Return
Supply
Control wire
6 – 35
4
6