EAS ELECTRIC ETHKH160 Manual De Instrucciones página 58

Make sure to fit the 3-way valve correctly. For more details, refer to "Connection for other components/For 3-way valve SV1 " .
The unit can be configured so that at low outdoor temperatures the domestic water is exclusively heated by the booster heater. This
assures that the full capacity of the heat pump is available for space heating.
Details on domestic hot water tank configuration for low outdoor temperature (T4DHWMIN) can be found under "Field settings/how
to set the DHW MODE".
4.3 Application 3
Space cooling and heating application with a room thermostat suitable for heating/cooling changeover connected to the unit. Heating
is provided through floor heating loops and fan coil units. Cooling is provided through the fan coil units only. Domestic hot water is
provided through the domestic hot water tank which is connected to the unit.
SP
Outdoor
1
1 Outdoor unit
2 Indoor unit
2.1 PUMP_I (built-in circulating pump)
2.2 Plate heat exchanger
(air to water heat exchanger)
2.3 IBH (built-in backup heater)
2.4 Manometer (built-in)
2.5 Air vent valve (built-in)
2.6 Expansion vessel (built-in)
2.7 Safety valve (built-in pressure relief)
2.8 Water inlet
2.9 Water outlet
2.10 Refrigerant connections
3 User interface (accessory)
4 SV1: Motorized 3-way valve (field supply)
The volume of the buffer tank(5) should be larger than 30L. The drain valve(21) should be installed at the lowest position of the water
circulating system.
2
2.5
2.2
2.6
2.3
25 24
2.7
2.4 2.1
2.1
2.10 2.9 2.8
19 19
16
21
4
6
20
5
21
Modbus
5 Buffer tank (field supply)
6 Balance tank (field supply)
6.1 Air vent valve
6.2 Drain valve
7 P_o: Outside circulating pump (field supply)
8 SV2: Motorized 2-way valve (field supply)
10 P_s: Solar pump (field supply)
11 P_d: DHW pipe pump (field supply)
12 T5: Domestic water tank temperature
sensor (accessory)
14 Expansion vessel (field supply)
15 Domestic hot water tank (field supply)
15.1 TBH: Domestic hot water tank booster heater
15.2 Coil heat exchanger for heat pump
15.3 Coil heat exchanger for solar
CAUTION
NOTE
Indoor
3
8
M
14
6.1
7
6.2
NOTE
6
25
FCU1 FCU2 FCUn
25
FHL1 FHL2
10
12
15.2
16 Filter (accessory)
17 Non return valve (field supply)
19 Shut-off valve (field supply)
20 Fill valve (field supply)
21 Drain valve (field supply)
22 Tap water inlet pipe (field supply)
23 Hot water tap (field supply)
24 Room thermostat (field supply)
25 Collector (field supply)
26 Bypass valve (field supply)
SP Solar plate (field supply)
FHL1...n Floor heating loop (field supply)
FCU1...n Fan coil unit (field supply)
26
FHLn
15
23
11
15.3
17
15.1
17
22
V.1