Worcester 26CDi XTRA Installation And Servicing Instructions page 5

Table 3
Boiler output.
Mode of
operation
kW
6.7
Non-cond.
Condense 7.2
Non-cond. 24.0
Condense. 26.0
Table 4
Central heating flow fitting.
Central heating return fitting.
Cold water mains inlet fitting.
Domestic hot water outlet fitting.
Condensate drain connection.
Gas inlet fitting.
Pressure relief valve discharge fitting.
Overall height (including flue turret).
Casing height.
Casing width.
Casing depth.
Weight (including water).
Installation weight.
Pakaged weight.
Primary water capacity.
Maximum cold supply pressure.
Minimum cold supply pressure (working) for max. hot water flow.
Minimum cold supply pressure (working) to operate appliance.
Maximum central heating flow temperature.
Output to domestic hot water
Output to central heating - None condensing mode.
Output to central heating - Condensing mode.
Maximum domestic hot water flow rate (from the appliance).
Equivalent domestic hot water flow rate to give a temperature rise
of 30°C (specific rate).
Equivalent domestic hot water flow rate to give a temperature rise
of 35°C.
NOX Classification
Appliance Flue Types
Available pump head.
Head
Btu/h Metres
(22,860) 5.4
(24,566) 5.7
(81,888) 2.0
(88,712) 3.5
Min, flow rate
Feet L/min.
17.8 8.7
18.8 5.1
6.6 23.0
11.6 18.6
Specifications
5
Ä Temperature rise
across heating flow
Gal/Min. and return
1.9 11°C (20°F)
1.1 20°C (37°F)
5.1 15°C (27°F)
4.1 20°C (37°F)
22mm Compression
22mm Compression
15mm Compression
15mm Copper
3
22mm ( / in Plastic)
4
Rc 3 ⁄
4
15mm Copper
1000mm (39.4 inches)
850mm (33.5 inches)
450mm (17.7 inches)
360mm (14.2 inches)
50 kg
47 kg
53 kg
2.0 litres (0.45 galls)
10 Bar (150 psi)
1.2 bar
0.7 bar
Nominally 82°C (180°F)
Modulating 6.7 to 24.0 kW
Modulating 6.7 to 24.0 kW
Modulating 7.2 to 26.0 kW
Nominally 8.0 litres/min
Nominally 11.5 litres/min
Nominally 9.8 litres/min
Class 3
C12 C32