User manual

Installation Manual
Wall Hung Condensing Boiler – Cod. 99921NA – June 2002
2
TECHNICAL DATA
Type C unit
Type C devices are devices in which the combustion circuit
(air intake, combustion chamber, exchanger, combustion
exhaust) is sealed off from the place where they are
installed.
CENTRAL HEATING - DOMESTIC HOT WATER
sealed combustion circuit type
RSF 30 E -
electronic ignition
Technical data
RK 25 RKR 25
Maximum rated input kW (kCal/h) 25 (21500) 25 (21500)
Minimum rated input kW (kCal/h) 9 (7740) 9 (7740)
Maximum rated output (50/30°) kW (kCal/h) 26.67 (22940) 26.67 (22940)
100% output efficiency Pn (50/30°) % 106.7 106.7
30% output efficiency Pn (50/30°) % 106.3 106.3
Maximum rated output (80/60°) kW (kCal/h) 24.60 (21156) 24.60 (21156)
Minimum rated output (80/60°) kW (kCal/h) 8.73 (7508) 8.73 (7508)
100% output efficiency Pn (80/60°) % 98.4 98.4
30% output efficiency Pn (80/60°) % 100.1 100.1
Acqua calda ∆ t 30° C
lt/min. 11.70
NOx - Class V V
NOx mg/kWh 40 40
CO mg/kWh 95 95
Max. working pressure (heating) bar 3 3
Max. working pressure (water) Bar 10 10
Expansion vessel capacity (initial pressure 1 bar) Litri 7 7
Width mm 450 450
Height mm 800 800
Depth mm 300 300
Coaxial exhaust flue diameter
Double exhaust flue diameter
mm
mm
60/100
80/80
60/100
80/80
Weight Kg. 39 43
Flow/return connections Ø ¾” ¾”
Cold water connections Ø ½” ½”
Hot water connections Ø - ½”
Gas connections Ø ½” ½”
Electrical connection 50 Hz V 230 230
Power supply W 170 180
Electrical protection IP X4D X4D
Categorie di scarico B23 – C13 – C33 – C43 – C53
Gas category: IT II2H3 Gas supply pressure: G20 20 mbar / G30/31 29-30/37 mbar
FORCED CIRCULATION
Coassiale Verticale
Coassiale Orizzontale
C32
C12
SdoppiatoC52