And 1 Heat Source (Rkhbrd Unit); Application Examples With 2 Or More Different Heat Emitters And 1 Heat Source (Rkhbrd Unit) - Rotex RKHBRD011ABV1 Manuel D'installation

Application examples with 2 or more different heat
emitters and 1 heat source (RKHBRD unit)
Using different heat emitters means using different water set points
for the system.
Such installations must be done using a balancing bottle and each
kind of heat emitter should have a specific pump.
■
Application 4
Space heating provided through a combination of floor heating
loops, fan coil unit and radiator heating. For floor heating
applications in combination with radiators the water temperature
delivered by the Rotex system is too high. For this reason a
temperature reducing device (field supply) is required to lower
the water temperature (the hot water will be mixed with cold
water to lower the temperature). The control of this field supplied
valve is not done by the heat pump system. The operation and
configuration of the field water circuit and selection of the
balancing bottle, the pumps, etc..., are the responsibility of the
installer. Rotex only offers the possibility to have multiple set
points on request.
■ Pattern A
The domestic hot water tank is installed in parallel with the
temperature reducing device(s). This allows operating the
unit in space heating and domestic water heating
simultaneously. The balancing of the water distribution is in
this case the responsibility of the installer.
C1
1 2 3 4 3 5 6
9
12 13
FHL
45°C
35°C
TRD1
19
18
11
1 Outdoor unit
2 Indoor unit
3 Electronic expansion
valve
4 Refrigerant heat
exchanger
5 Water heat exchanger
6 Pump
8 Domestic hot water
tank (optional)
9 Compressor
10 Shut-off valve
11 Balancing bottle
(field supply)
12 FHL: Floor heating
loop (field supply)
RKHBRD011~016ABV1+Y1
Indoor unit for air to water heat pump system
4PW61218-1A
10
10
14 15 16 14 17 8
FCU
65°C
TRD2
19 19 19
21
18
20 20 20
14 By-pass valve
(field supply)
15 FCU: Fan coil unit or
FWXV (optional)
16 Shut-off valve
(field supply)
17 Radiator (field supply)
18 Mixing valve
(field supply)
19 Pump (field supply)
20 Non-return valve
(field supply)
21 Valve (field supply)
(refer to "Multiple set
point control" on
page 28 for more
details)
13 Shut off valve (field
supply) or EKVKHPC
2-way valve kit for heat
pump convector
(optional)
■ Pattern B
The domestic hot water tank is installed in a separate circuit
(with a 3-way valve) of the temperature reducing device(s).
This configuration does not allow simultaneous domestic hot
water and space heating operation.
C1
1 2 3 4 3 5 6
9
10
12
FHL
35°C
TRD1
19
18
11
1 Outdoor unit
2 Indoor unit
3 Electronic expansion
valve
4 Refrigerant heat
exchanger
5 Water heat exchanger
6 Pump
7 Motorized 3-way valve
(optional)
8 Domestic hot water
tank (optional)
9 Compressor
10 Shut-off valve
11 Balancing bottle
(field supply)
12 FHL: Floor heating loop
(field supply)
Refer to the chapter "Multiple set point control" on page 28
for more information about the configuration of your system.
C1 Remote controller
TRD1 Temperature reducing
device 1
TRD2
Temperature reducing
device 2
7 8
M
10
13 14 15 16 14 17
FCU
45°C 65°C
TRD2
19 19
18
20 20
13 Shut off valve (field
supply) or EKVKHPC
2-way valve kit for heat
pump convector
(optional)
14 By-pass valve
(field supply)
15 FCU: Fan coil unit or
FWXV (optional)
16 Shut-off valve
(field supply)
17 Radiator (field supply)
18 Mixing valve
(field supply)
19 Pump (field supply)
20 Non-return valve
(field supply)
C1 Remote controller
TRD1 Temperature reducing
device 1
TRD2 Temperature reducing
device 2
Installation manual
4