Fujitsu NEORE 11, Руководство пользователя по установке

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H/m
0
1
2
3
4
5
6
7
8
m /h
0 1 2 3 4 5
7
7,1
5
3
1,5
Hydraulic circuit design documents
The Neoré heat pump is designed according to the simple installation. All important elements of the hydraulic
circuit are integrated in the indoor unit. The indoor unit contains efficient circulator, exchanger, 3-way valve for
heating DHW, 8 l expansion tank, 6 kW backup electric heating, DN20 / 2,5bar safety valve. In the hydraulic circuit
design is neccessary to take into account high demand of heat pumps on sufficient flow of heating water. The heat
pump NeoRé can operate without accumulation tank.
In this case is neccessary to keep following demands. The heat pump musn´t be exclude from the heating system.
The heat pump has to have enough amount of thermal energy which will be taken back during defrosting of the
outdoor unit. It is not recommended to use thermostatic or mixing valve (typically 4-way valve). Regulation of
heating water is determined by equitherm regulation which is contained in the inside unit control system. In the
case of need to use flow regulation element, it is necessary to install accumulation tank into system. We do not
recommend to use hydraulic dynamic pressures flattener (anuloid) for heat pump connection to the heating
system. If you use it, the efficiency of heat pump becomes worse because of its temperature gradient. Anuloid use
only for connecting bivalent source to the heating water circuit (if is needed). In case of use accumulation tank is
necessary to ensure the same flow between primary and secondary side of hydraulic circuit (at least at full load).
The size of accumulation tank is recommended at least 14,6 l on 1 kW of heat pump power.
The heat pump contains circulator with variable power. Minimal water flow which is required to heat pump
operation is shown in following graph.
Indoor unit hydraulic power parameters (fully equipped)
Minimal diameter DN25
Minimal water flow for different types of units
0,00
0,10
0,20
0,30
0,40
0,50
0,60
0,70
0,80
0,90
1,00
1,10
1,20
1,30
1,40
30 40 50 60 70 80 90 100
0,20
0,37
0,53
0,70
0,87
1,03
1,20
1,37
0,20
0,34
0,49
0,63
0,77
0,91
1,06
1,20
0,20
0,31
0,41
0,52
0,63
0,74
0,84
0,95
0,20
0,27
0,34
0,41
0,49
0,56
0,63
0,70
8 kW 11 kW 14 kW 16 kW
Q/m/h
Pipe dimensions
D
= inner diameter
mm
in mm
P= power of HP in kW
copper pipes
(flow 0,7 m/s, Δ 6°C)
steel pipes
(flow 1 m/s, Δ 6°C)
D =( P*0,00127 ) * 200
mm
D =( P*0,00181 ) * 200
mm
Circulator power [%]
Min. water flow [m/h]