INSTALLATION
Specification
14
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15.5 Pressure drop
Taps
Tap pressure drop at a flow rate of 10 l/min
Mono lever mixer tap, approx.
MPa
0.04 - 0.08
Thermostatic valve, approx.
MPa
0.03 - 0.05
Hand shower, approx.
MPa
0.03 - 0.15
Sizing the pipework
When calculating the size of the pipework, an appliance pressure
drop of 0.1 MPa is recommended.
15.6 Fault conditions
In the event of a fault, loads up to a maximum of 95 °C at a pres-
sure of 1.2 MPa can occur temporarily in the installation.
15.7 Energy consumption data
Product datasheet: Conventional water heaters to regulation (EU) no. 812/2013 and 814/2013
PHB 13
PHB 18
PHB 21
PHB 24
233998
233999
234000
234001
Manufacturer
STIEBEL ELTRON
STIEBEL ELTRON
STIEBEL ELTRON
STIEBEL ELTRON
Load profile
XS
S
S
S
Energy efficiency class
A
A
A
A
Energy conversion efficiency
%
39
38
38
38
Annual power consumption
kWh
469
483
483
483
Sound power level
dB(A)
15
15
15
15
Special information on measuring efficiency
None
None
None
None
Daily power consumption
kWh
2.148
2.215
2.197
2.186
15.8 Data table
PHB 13
PHB 18
PHB 21
PHB 24
233998
233999
234000
234001
Electrical data
Rated voltage
V
380
400
380
400
380
400
380
400
Rated output stage I min.
kW
4.2
4.6
5.7
6.3
6.7
7.4
7.5
8.3
Rated output stage I max.
kW
9.6
10.6
12.9
14.3
15.2
16.8
17.1
19
Rated output stage II min.
kW
6.1
6.8
8.3
9.2
9.7
10.8
11
12.2
Rated output stage II max.
kW
12.2
13.5
16.3
18
19
21
21.7
24
Rated current
A
18.5
19.5
24.7
26
29.5
31
33.3
35
Fuse protection
A
20
20
25
25
32
32
35
35
Phases
3/PE
3/PE
3/PE
3/PE
Frequency
Hz
50/60
50/60
50/60
50/60
Specific resistivity ρ
15
≥
Ω cm
900
900
900
900
Specific conductivity
σ
15
≤
μS/cm
1111
1111
1111
1111
Versions
Colour
White
White
White
White
IP rating
IP25
IP25
IP25
IP25
Heating system heat generator
Bare wire
Bare wire
Bare wire
Bare wire
Connections
Water connection
G 1/2 A
G 1/2 A
G 1/2 A
G 1/2 A
Application limits
Max. permissible pressure
MPa
1
1
1
1
Values
Max. permissible inlet temperature
°C
25
25
25
25
Pressure drop at flow rate
MPa
0.09
0.11
0.13
0.15
Flow rate for pressure drop
l/min
3.9
4.5
5.6
6.3
Flow rate limit at
l/min
4.7
5.9
7.0
7.8
DHW delivery
l/min
7.0
9.4
11.1
12.5
Δ
ϑ
on delivery
K
26
26
26
26
Hydraulic data
Nominal capacity
l
0.4
0.4
0.4
0.4
Dimensions
Height
mm
485
485
485
485
Width
mm
226
226
226
226
Depth
mm
93
93
93
93
Weights
Weight
kg
3.6
3.6
3.6
3.6