Technical data

Linea 24 & 28
3
SECTION 3 TECHNICAL DATA
3.1 Units Dimensions and values are given in the
preferred Sl Units with Imperial units in brack-
ets where applicable.
3.2 Dimensions and Contents
Water content: 3 litres (.66 gals)
for further dimensions see figs 12 - 16
3.3 Connection sizes
Heating flow and return: Nut and olive for
22mm o.d.
Cold water inlet: Nut and olive for 15mm o.d.
Hot water outlet: Nut and tail for 15mm o.d.
Gas Service: Nut and tail for 15mm o.d.
Safety valve outlet: 15mm comp.or capillary
Flue outlet/Air inlet: nom dia 60/100mm spe-
cially supplied with boiler (concentric).
Flue outlet/Air inlet: nom dia 80/80mm spe-
cially supplied with boiler (twin).
3.4 Installation Requirements
3.4.1 Clearances (Horizontal or Vertical Flue)
Minimum - above casing 225mm (9in) Mini-
mum - below casing 200mm (8in) Minimum
- In front 600mm (24in)
Minimum - At sides 12mm (˚in) from casing
3.4.2 Maximum heating system contents approx.
76.4 litres (16.8 gals). Acceptance capacity of
expansion vessel 8 litres (1.8 gals).
3.4.3 Means of filling sealed system: To accord with
BS and/or local Water Authority requirements.
3.4.4 Using extension tubes the flue may be ex-
tended to the following lengths.
Concentric
Twin (+ concentric terminal)
The reduction in flue length for each bend
used is listed opposite.
3.5 Electrical Details
Mains supply 230v ~ 50Hz Fused 3A
Internal fuse rating F2A and T100mA
Power consumption:125W
3.6 Performance and Limitations 24
Max. input 26.3 kW (89,735 Btu/h)(net)
Min. input 11.2 kW (38,225 Btu/h)(net)(c/h)
Min. input 9.8 kW (33,447 Btu/h)(net)(h/w)
Max. input 29.2 kW (99,658 Btu/h)(gross)
Min. input 12.4 kW (42,320 Btu/h)(gross)(c/h)
Min. input 10.8 kW (36,860 Btu/h)(gross)(h/w)
Max. output 23.7 kW (80,864 Btu/h)
Min. output 9.3 kW (31,740 Btu/h)(c/h)
Min. output 8.1 kW (27,645 Btu/h)(h/w)
Central Heating output range
Max. 23.7 kW (80,864 Btu/h)
Min. 9.3 kW (31,740 Btu/h)
Designed temp rise 20°C
Max. flow temperature 85°C
Nominal Hot Water Production
Temp. rise of 30°C 11.3l/min.
Temp. rise of 35°C 9.7l/min.
Gas Pressures
Max. gas pressure 10.1mbar (4.0in wg)
Min. gas pressure C/H 1.9mbar (0.75in wg)
Min. gas pressure H/W 1.5mbar (0.6in wg)
Gas Rate
Max. 2.78 m3/h 98.3 ft3/h
Min. 1.02 m3/h 36.3 ft3/h
Note: Use gross in put values when gas rating
the appliance.
Burner Details Main burner:
Polidoro type NP12
Main burner injectors 12 x 1.35
Performance and Limitations 28
Max. input 31.0 kW (105,802 Btu/h)(net)
Min. input 11.9 kW (42,662 Btu/h)(net)(c/h)
Min. input 10.5 kW (35,836 Btu/h)(net)(h/w)
Max. input 34.4 kW (117,406 Btu/h)(gross)
Min. input 13.2 kW (47098 Btu/h)(gross)(c/h)
Min. input 11.6 kW (39,590 Btu/h)(gross)(h/w)
Max. output 28.0 kW (95,563 Btu/h)
Min. output 9.9 kW (35,836 Btu/h)(c/h)
Min. output 8.7 kW (29,692 Btu/h)(h/w)
Height
Width
Depth
Weight dry
Weight full
24
820mm (32.3)
400mm (15.7
355mm (14.0)
41kg (90lb)
44kg (97lb)
28
820mm (32.3)
450mm (17.7)
355mm (14.0)
43kg (94.6lb)
46kg (101lb)
Horizontal
Vertical
24
4.5m
5.25m
Horizontal
Vertical
24
14/14m
14/14m
28
3.4m
4.4m
28
14/14m
14/14m
Concentric Flue
Reduction in flue length
for each bend
Bend
90°
45°
1000mm
500mm
Twin Flue
Reduction in flue length
for each bend
Bend
90°
45°
1000mm
1000mm