Baxi NUVOLA 28 Fi, Installers And Users Instructions

Page: 35 / 40

921.968.2.00.02.010702
35
Technical data
Approvals:
EC Approval (IMQ) 0051AU1627
Category II 2H3B/P
Connection pressure – natural gas (G20) mbar 20
Connection pressure – LPG (G30/31) mbar 30
VA approval 3.24/12157
Output and loads:
Load High – max. kW 34,5
Load High – min. kW 13,2
Output – max. (kcal – 24,000) kW 28,0
Output – min. (kcal – 8,900) kW 10,4
Efficiency – nominal output % 90,6
Efficiency – minimum output % 88,0
Efficiency in accordance with EU Directive 92/42 **
Heating system – specifications:
Temperature – setting range (aut.)
°
C 30-85
Temperature – max. in heating system
°
C 95
Operating pressure – max. in heating system bar 2,5
Expansion vessel – volume l 7,5
Expansion vessel – pre-set pressure bar 0,5
Water for domestic use – specifications:
Temperature – setting range
°
C 5-65
Cylinder volume l 60
Operating pressure – max. pressure in water circuit bar 10,0
Hot-water output at
∆
T = 25
°
l/min 16,0
Hot-water output at
∆
T = 35
°
l/min 11,4
Hot-water output – nominal l/min 17,0
(in accordance with EN 625)
Hot-water output at
∆
T = 30
°
l/30 min 450
Reheating time – cold (10-60
°
C) min. 12
Gas:
Jet pressure, jet sizes and the number of jets can be found on page 28
Electrical connection:
Electrical connection volt 230
Hz 50
Electricity consumption Watt 190
Fuse (5 x 20 mm FIN) volt 250
ampere 2
Radio interference suppression in accordance with EC EN standard 92/311
Dimensions and weight : height mm 950
width (*) mm 600
depth mm 460
Weight – net kg 70
Weight – gross kg 133,3
(incl. central heating and hot water content)
Flue system – dimensions and lengths:
Vertical balanced – internal / external pipe
Ø mm 80/125
Horizontal balanced – internal / external pipe Ø mm 60/100
Split flue – flue gas and air inlet Ø mm 80
Horizontal balanced – max. m 2,7
Vertical balanced – max. m 7,5
Split flue – max. (air + flue gas) m 2 x 10
For each 90
°
bend, the length is reduced by 1 metre
For each 45
°
bend, the length is reduced by 0.5 metre
Pipe connections:
1 – Domestic hot water
RG 1/2"
2 – Domestic cold water RG 1/2"
3 – Heating system return RG 3/4"
4 – Heating system out RG 3/4"
5 – Gas connection RG 3/4"
The boiler controls and regulating equipment are designed so that they conform to all relevant EC provisions. BAXI is continually developing its
products and consequently reserves the right to change the specifications contained in these instructions without prior notice.
(*) clearance requirements from sides: + 20 mm
Conversion values used:
1 kW = 860 kcal/h; 1 mbar = 10.197 mmH
2
0
GUARANTEE: 5 years against corrosion of parts in contact with flue gas and the hot-water cylinder
2 years’ guarantee on other parts in accordance with the BAXI guarantee certificate