EAS ELECTRIC ETHKH160 Manual De Instrucciones página 63

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)
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.
Operation
When heating required, either the unit or the boiler starts operating, depending on the outdoor temperature (refer to "Field setting/
OTHER HEATING SOURCE").
■ As the outdoor temperature is measured via the outdoor unit ambient temperature sensor, make sure to install the outdoor unit in the shade,
so that it is not influenced by the sun.
■ Frequent switching may cause corrosion of the boiler in an early stage. Contact the manufacturer of the boiler.
■ During heating operation of the unit, the unit will operate so as to achieve the target water flow temperature as set on the user interface.
When weather dependent operation is active, the water temperature is determined automatically depending on the outdoor temperature.
■ During heating operation of the boiler, the boiler will operate so as to achieve the target water flow temperature as set on the user interface.
■ Never set the target water flow temperature set point on the user interface above (60°C).
The domestic water heating and DHW pipe pump operationg are as described in "Application 2".
Make sure to configure the FOR SERVICEMAN in the user interface correctly. Refer to "field settings/OTHER HEATING SOURCE".
■ Make sure that return water to the heat exchanger never exceeds 60°C. Never put the target water flow temperature set point on the
user interface above 60°C.
■ Make sure that the non-return valves (field supply) are correctly installed in the system.
■ The supplier shall not be held liable for any damage resulting from failure to observe this rule.
4.6 Application 6
■ Space heating with two room thermostat application through floor heating loops and fan coil units. The floor heating loops and fan coil units
require different operating water temperatures.
■ The floor heating loops require a lower water temperature in heating mode compared to fan coil units. To achive these two set points, a
mixing station is used to adapt the water temperature according to requirements of the floor heating loops. The fan coil units are directly
connected to the unit water circuit and the floor heating loops after the mixing station. The control of this mixing station is not done by the unit.
■ The operation and configuration of the field water circuit is the responsibility of the installer.
■ We only offers a dual set point control function. By this function two set points can be generated. Depending on the required water
temperature (floor heating loops and/or fan coil units are required) first set point or second set point can be activated.see the field setting
/ROOM THERMOSTAT.
The wiring of room thermostat 24A(for fan coil units) and 24B(for floor heating loops) should follow 'method C' as described in
"Connection for other components/For room thermostat". When start signal is detected in "H" port, the MAIN side will turn on, the
operation mode and target temperature can be set in the user interface. When stop signal is detected, the MAIN side will turn off. When
start signal is detected in "C port, the ROOM side will turn on, the operation mode and target temperature decided by the climate related
curves (if curves not selected, curve 4 will be the default one). When stop signal is detected, the ROOM side will turn off. When stop signal
detected in both "H" and "C" port, the unit will turn off.
6 Balance tank (field supply)
6.1 Air vent valve
6.2 Drain valve
7 P_o: Outside circulating pump (field supply)
9 Mixing station (field supply)
9.1 Mixing valve
9.2 P_c: Mixing pump
10 P_s: Solar pump (field supply)
11 P_d: DHW pipe pump (field supply)
12 T5: Domestic water tank temperature sensor
(accessory)
13 T1B: Confluent outlet water temperature
sensor (optional)
14 Expansion vessel (field supply)
15 Domestic hot water tank (field supply)
15.1 TBH: Domestic hot water tank booster heater
NOTE
NOTE
CAUTION
NOTE
11
15.2 Coil heat exchanger for heat pump
15.3 Coil heat exchanger for solar
16 Filter (accessory)
17 Non return valve (field supply)
18 Aquastat 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)
25 Collector (field supply)
28 Motorized 3-way valve (field supply)
SP Solar plate (field supply)
FHL1...n Floor heating loop (field supply)
AHS Additional heating source such as
boiler (field supply)
V.1