15
Technical Features
ENGLISH
2.4.2 - FEATURES OF INTEGRATED Ufly BOX
OSA S 24
OSA S 28
OSA S 35
Appliance category
II
2H3P
II
2H3P
II
2H3P
Minimum heat. circuit output (∆t 20 °C)
l/min
2,1
3,06
3,08
Minimum heating circuit pressure
bar
0,5
0,5
0,5
Maximum heating circuit pressure
bar
3
3
3
Primary circuit content
l
2,2
2,2
2,2
Maximum operating temperature in heat.
°C
85
85
85
Minimum operating temperature in heat.
°C
30
30
30
Expansion vessel total capacity
l
9 (6+3)
6
6
Expansion vessel pre-load
bar
1
1
1
Maximum system capacity (max temp. calc.)
l
185
123
123
Minimum domestic hot water circuit flow rate
l/min.
2
2
2
Minimum domestic hot water circuit pressure
bar
0,5
0,5
0,5
Maximum domestic hot water circuit pressure
bar
6
6
6
Domestic hot water specific flow rate (∆t 30 °C) ‘‘
D
’’
l/min.
11,2
16
16
Domestic hot water flow rate limiter
l/min.
10
15
15
Production of D.H.W. in continuous operation with ∆t 45 K l/min.
7,3
10,3
10,3
Production of D.H.W. in continuous operation with ∆t 40 K l/min.
8,3
11,6
11,6
Production of D.H.W. in continuous operation with ∆t 35 K l/min.
9,4
13,3
13,3
Production of D.H.W. in continuous operation with ∆t 30 K l/min.
11,0
15,5
15,5
Production of D.H.W. in continuous operation with ∆t 25 K (*) l/min.
13,2
18,6
18,6
Voltage/Frequency electric power supply
°C
35-60
35-60
35-60
Fuse on the power supply
V-Hz
230/50
230/50
230/50
Maximum absorbed output
A (F)
3,15
3,15
3,15
Protection rating
IP
X4D
X4D
X4D
Net weight boiler
kg
41
41
41
Gross weight boiler
kg
45,7
45,7
45,7
Net weight front case (shell)
kg
3
3
3
Gross weight front case (shell)
kg
4,9
4,9
4,9
F factor
1
2
2
R factor
(*) mixed
Ufly BOX
control panel, togheter with
room sensor temperature and outer sensor temperature
provided as standard, performs the environmental thermoregulation work as described in the document
2014/C 207/02, section 6.1.
Class VI
– Weather compensator and room sensor, for use with modulating heaters: A heater flow tem
-
perature control that varies the flow temperature of water leaving the heater dependant upon prevailing
outside temperature and selected weather compensation curve. A room temperature sensor monitors
room temperature and adjusts the compensation curve parallel displacement to improve room comfort.
Control is achieved by modulating the output of the heater.
2.5 - GENERAL FEATURES
Summary of Contents for S 24
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