WaterMaster 25 - 35 - 45 - 70 - 85 - 120 : A1006482 - 664Y7300 • D
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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 classified as a pressure class 3
appliance.
WaterMaster
Main Characteristics
25
35
45
70
85
120
Capacity (primary)
L
100
100
100
125
125
125
Capacity (DHW)
L
96
96
96
190
190
190
Water pressure drop (primary circuit)
(Δt = 20 K)
mbar
3
6
10
9
14
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 flow 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 flow 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 flow 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 efficiency 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 flow 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 flow 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 flow 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 efficiency at T = 30 K
%
103.9
103.9
102.2