Alpha 280E Installation Instructions Manual Download Page 5

5

Twin Pipe Flue Systems

4

INSTALLATION

4.1

INSTALL THE BOILER

Mount the boiler on the wall and connect the pipework as described in the Installation and Servicing instructions supplied with
the boiler.

4.2

CONVERT THE BOILER (see Fig. 5)

Modify the top of the boiler to enable a 2-pipe flue system to be connected using conversion kit 1000368 as follows:-
1.

Place the flue duct adaptor in position onto the boiler flue adaptor and secure with the clamp and seal.

2.

Select the required position of the air duct adaptor and remove the three screws securing the cover plate.

3.

Using the same three screws and gasket secure the air duct adaptor in position.

Fig. 6

Fig. 5

40

90

Air duct adaptor

Flue duct adaptor

Boiler flue adaptor

Clamp and seal

Top of boiler

Cover plates

Alpha 240 Range, 280E

Alpha 500E

190

145

90

160

75

280

425

175

160

280

225

225

175

55

120

120

135

Air duct adaptor
may be fitted right
or left side

Summary of Contents for 280E

Page 1: ...y be used with Alpha boilers failure to comply will invalidate the boiler s warranty and CE approval and may be unsafe 0051 Suitable for use with the Alpha 240 280 and 500 Range of gas fired combinati...

Page 2: ...d with a vertical flue 5 Refer to the flue options shown to determine the equivalent length of flue pipe required Ensure that this does not exceed the maximum equivalent flue length given in the table...

Page 3: ...of flue air ducting required Fig 1 Where D 50 mm for each connection in straight ducting Lmax 10 m except for Alpha 280E Lmax 6 m A 2 x B C1 C2 D 220 mm Alpha 500E A 2 x B D 570 mm B Alpha 240 280 Ran...

Page 4: ...e used with a vertical flue Fig 4 3 3 VERTICAL FLUE OPTION Ridge tile Fig 3 A 2 x C 50 mm for each connection in straight ducting Hmax 7 m Not less than 450 mm Not less than 300 mm H C Not less than 4...

Page 5: ...lace the flue duct adaptor in position onto the boiler flue adaptor and secure with the clamp and seal 2 Select the required position of the air duct adaptor and remove the three screws securing the c...

Page 6: ...the flue assembly If necessary secure ducts together by drilling a 3 mm diameter hole through the socket and secure with a screw 5 Ensure all lengths of flue air ducting are adequately supported 4 4...

Page 7: ...terial iv Fit a weathering slate suitable for a 120 mm outside diameter flue over the hole in the roof v Fit the terminal assembly into the weathering slate and place it in position ensuring the minim...

Page 8: ...l pipes or drain pipes C Below eaves D Below balconies or car port roof E From a vertical drain pipe or soil pipe F From an internal or external corner G Above ground roof or balcony level H From a su...

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