Boiler type
Calenta
25s
28c
35s
40c
Flue gas temperature
minimum-
maximum
°C
30 - 80
30 - 85
30 - 75
30 - 80
Maximum counter pressure
Pa
120
130
140
160
Characteristics of the heating circuit
Water content
l
1,7
1,7
2,3
2,3
Water operating pressure
minimum
bar
0,8
Water operating pressure
(PMS)
maximum
bar
3,0
Water temperature
maximum
°C
110
Operating temperature
maximum
°C
90
Manometric height central
heating circuit (ΔT = 20K)
mbar
295
295
291
291
Characteristics of the domestic hot water circuit
CW gas approval
-
-
4
-
5
Specific hot water flow D
(60 °C)
l/min
-
8,2
-
11,1
Specific hot water flow D
(40 °C)
l/min
-
13,7
-
19,5
Domestic water resistance
mbar
-
490
-
810
Flow rate threshold
minimum
l/min
-
1,2
-
1,2
Actual appliance waiting
time
(1)
s
-
5,15
-
5,18
Specific pipe length
(2)
m
-
23,86
-
23,83
Annual operational efficiency
for domestic water
without
iSense
%
-
90,6
-
92,3
with
iSense
%
-
91,4
-
93,8
Water content
l
-
0,33
-
0,49
Operating pressure (Pmw)
maximum
bar
-
8
-
8
Electrical characteristics
Power supply voltage
VAC
230
Power consumption - Full
load
maximum
W
116
124
129
139
Factory setting
W
72
72
92
92
Power consumption - Part
load
maximum
W
21
21
22
22
Power consumption -
Standby
maximum
W
4
Electrical protection index
IP
X4D
Other characteristics
Weight (empty)
Total
kg
30
31
32
33
Mounting
(3)
kg
27
28
29
30
Acoustic level at 1 metre
dB(A)
42
44
45
47
(1) Time needed as of the start of water draw-off to obtain an increase in temperature of 40K at the appliance's water outlet for the purposes of
installation calculation, based on the draw-off flow rate CW.
(2) The specific length of the pipe Ø 10/12 mm is the maximum uninsulated length, on the understanding that, in the most unfavourable summer
situation, the appliance will supply hot water in less than 30 s with a permanent increase in temperature of 35 ºC at the draw-off point in the
kitchen.
(3) Front panel removed
Calenta 25s - 28c - 35s - 40c
3. Technical description
040412 - 7600585-01
19
Содержание Calenta 25s
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