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WaterMaster 25 - 35 - 45 - 70 - 85 - 120 : A1006482 - 664Y7300 • D
en
32
EN
FR
NL
ES
IT
DE
PL
RU
TECHNICAL CHARACTERISTICS
HYDRAULIC CHARACTERISTICS MAXIMUM OPERATING CONDITIONS
Maximum Service Pressure (tank full of water) *
- Primary circuit : ....................................................................................................................3 bar
- DHW circuit : ...................................................................................................................... 8.6 bar
Maximum Operating Temperatures
- Maximum temperature (primary) : ............................................................................... 87°C
- Maximum temperature (DHW) : .................................................................................... 75°C
Water Quality
See "Recommendations for the Prevention of Corrosion and Scaling in Heating Systems" on the following
page.
* The hydraulics of the water heater have been tested according to EN 89:2015, and the water heater is classied as a pressure class 3
appliance.
WaterMaster
Main Characteristics 25 35 45 70 85 120
Capacity (primary) L100 100 100 125 125 125
Capacity (DHW) L96 96 96 190 190 190
Water pressure drop (primary circuit)
(Δt = 20 K) mbar 3 6 10 914 27
DHW PERFORMANCE
Domestic hot water performance* (cold drink water at 10°C)
Operating conditions at 80°C WM 25 WM 35 WM 45
Constant ow at
40 °C [∆T = 30 K]
L/h
788 1,104 1,390
45 °C [∆T = 35 K]
L/h
676 946 1,192
60 °C [∆T = 50 K]
L/h
473 662 820
Peak ow at
40 °C [∆T = 30 K]
L/10’
361 408 471
45 °C [∆T = 35 K]
L/10’
301 339 373
60 °C [∆T = 50 K]
L/10’
183 197 320
Peak ow 1st hour at
40 °C [∆T = 30 K]
L/60’
1,018 1,328 1,610
45 °C [∆T = 35 K]
L/60’
865 1,127 1,366
60 °C [∆T = 50 K]
L/60’
577 749 894
Reheat time from 10°C to 80°C min.
35 26 23
DHW eciency at T = 30 K %
105.4 105.4 103.1
Domestic hot water performance* (cold drink water at 10°C)
Operating conditions at 80°C WM 70 WM 85 WM 120
Constant ow at
40 °C [∆T = 30 K]
L/h
2,087 2,534 3,402
45 °C [∆T = 35 K]
L/h
1,789 2,172 2,928
60 °C [∆T = 50 K]
L/h
1,252 1,520 1,754
Peak ow at
40 °C [∆T = 30 K]
L/10’
716 783 900
45 °C [∆T = 35 K]
L/10’
592 646 676
60 °C [∆T = 50 K]
L/10’
348 371 440
Peak ow 1st hour at
40 °C [∆T = 30 K]
L/60’
2,455 2,895 3,620
45 °C [∆T = 35 K]
L/60’
2,083 2,456 3,098
60 °C [∆T = 50 K]
L/60’
1,391 1,638 1,847
Reheat time from 10°C to 80°C min.
27 24 23
DHW eciency at T = 30 K %
103.9 103.9 102.2
34


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