Bosch Worcester Greenstar HIU E Installation And Maintenance Instructions Manual page 15

Heat interface unit
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Description
General
Height
Width
Depth
Total unit weight (lift weight)
Packaged unit weight
Minimum inlet pressure to achieve nominal DHW flow rate
Nominal output to domestic hot water
Output range to central heating
Maximum flow temperature secondary heating
Maximum flow temperature DHW
District heating flow and return connections (compression)
Secondary heating flow and return connections (compression)
Cold feed and DHW connections (compression)
Pressure relief valve connection
Maximum district limited flow rate with integrated DPCV
Maximum working pressure district heating side
Pressure relief valve setting secondary heating side
Maximum working pressure domestic hot water side
pH value (district water supply), approximate
Expansion vessel
Expansion vessel charge
District Temperature (80°C)
Primary flow rate
Primary return temperature
Primary pressure drop
DHW output (50°C @ 40K rise)
DHW flow rate (50°C @ 40K rise)
District Temperature (70°C)
Primary flow rate
Primary return temperature
Primary pressure drop
DHW output (45°C @ 35K rise)
DHW flow rate (45°C @ 35K rise)
District Temperature (65°C)
Primary flow rate
Primary return temperature
Primary pressure drop
DHW output (40°C @ 30K rise)
DHW flow rate (40°C @ 30K rise)
Electrical
Electrical power supply voltage
Frequency
Max. power consumption
Standby power consumption
Appliance protection rating
Table 6
1) Nominal output to domestic hot water values are for a temperature rise of 40K.
6 720 808 928 (2017/06)
1)
HIU E with
Units
HIU E
heat meter
mm
700
mm
440
mm
270
kg
31
kg
34
bar
1.5
kW
39.1
kW
1.5 - 15
1.5 - 15
°C
80
°C
60
mm
22
mm
22
mm
15
mm
15
l/s
0.355
0.355
bar
10
bar
3
bar
10
7-9
l
5
bar
0.75
l/s
0.16
°C
22.2
kPa
19.9
kW
39.1
l/min
14
l/s
0.17
°C
21.8
kPa
21.8
kW
34.2
l/min
14
l/s
0.16
°C
19.5
kPa
17.9
kW
29.3
l/min
14
AC...V
230
Hz
50
W
41.3
W
3.1
IP
X4D
Appliance information
HIU with heat
HIU
700
700
440
440
270
270
31
31
34
34
1.5
1.5
39.1
39.1
1.5 - 15
1.5 - 15
80
80
60
60
22
22
22
22
15
15
15
15
N/A
10
10
3
3
10
10
7-9
7-9
5
5
0.75
0.75
0.16
0.16
22.2
22.2
26.8
12.1
39.1
39.1
14
14
0.17
0.17
21.8
21.8
29.4
13.3
34.2
34.2
14
14
0.16
0.16
19.5
19.5
24.2
11.0
29.3
29.3
14
14
230
230
50
50
41.3
41.3
3.1
3.1
40
X4D
meter
700
440
270
31
34
1.5
39.1
80
60
22
22
15
15
N/A
10
3
10
7-9
5
0.75
0.16
22.2
19.1
39.1
14
0.17
21.8
20.9
34.2
14
0.16
19.5
17.3
29.3
14
230
50
41.3
3.1
40
15

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