EAS ELECTRIC ETHKH160 Manual De Instrucciones página 65

■ It is the installers' responsibility to ensure that no unwanted situations can occur (e.g. extremely high temperature water going towards
floor heating loops, etc.)
■ The supplier does not offer any type of mixing station. Dual set point control only provides the possibility to use two set points.
■ When only zone A requests heating, zone B will be fed with water at a temperature equal to the first set point. This can lead to unwanted
heating in zone B.
■ When only zone B requests heating, the mixing station will be fed with water at a temperature equal to the second set point. Depending
on the control of the mixing station, the floor heating loop can still receive water at a temperature equal to the set point of the mixing
station.
■ Be aware that the actual water temperature through the floor heating loops depends on the control and setting of the mixing station.
4.7 Application 7
Space cooling and heating application without a room thermostat connected to the unit, but the temperature sensor attached in the user
interface is used to control the ON/OFF of the unit. Heating is provided through floor heating loops. Cooling is provided through the fan coil
units. A 3-way valve is used to change the direction of water flow when the operation mode changed.
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)
5 Buffer tank (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.
The wiring of the 3-way valve (29) should follow the wiring of 2-way valve SV2 (refer to "Connection
for other components/ For 2-way valve SV2" ).
2
2.5
2.2
2.6
2.3
2.7
2.4 2.1
2.1
2.10 2.9 2.8
19 19
16
21
6
20
5
21
Modbus
NOTE
Indoor
3
14
6.1
29
7
M
6.2
6 Balance tank (field supply)
6.1 Air vent valve
6.2 Drain valve
7 P_o Outside circulating pump (field supply)
14 Expansion vessel (field supply)
16 Filter (accessory)
19 Shut-off valve (field supply)
20 Fill valve (field supply)
21 Drain valve (field supply)
25 Collector (field supply)
26 Bypass valve (field supply)
29 Motorized 3-way valve (field supply)
FHL1...n Floor heating loop (field supply)
FCU1...n Fan coil unit (field supply)
NOTE
13
25
FCU1 FCU2 FCUn
25
FHL1 FHL2
Water inlet
26
FHLn
B
29
A
M
V.1