STIEBEL ELTRON PHB 18 - Pressure Drop; Fault Conditions; Energy Consumption Data; Data Table

INSTALLATION
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14 | PHB www.stiebel-eltron.com
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
Δϑ 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