17
Alpha E-Tec 25R - Installation
5.4 FIT THE BOILER - Refer to Figs. 5.2 and 5.3
Lift the boiler and locate it on the mounting bracket - the
boiler should be lifted by
two
persons.
Note:
When handling or lifting always use safe techniques -
keep your back straight, bend your knees, don't twist - move
your feet, avoid bending forwards and sideways and keep the
load as close to your body as possible.
Where possible transport the boiler using a sack truck or
other suitable trolley.
Always grip the boiler firmly, and before lifting feel where
the weight is concentrated to establish the centre of gravity,
repositioning yourself as necessary.
5.5 CONNECT THE PIPEWORK - Fig. 5.4
1. Thoroughly flush out all the water pipework. Refer to Section 4.10.
2. Fit the gas service cock to the boiler connection in Fig. 5.4.
3. Connect the system pipework to the union fittings on the top of the boiler, see Fig. 5.4.
Note:
When soldering bends, ensure they are not connected to the valves, otherwise the internal seals may be
damaged.
One metre of copper pipe must be fitted to the boiler before connecting to any plastic pipework conforming to
BS 7291.
4. Connect the flexible condensate pipe to the rubber connector as shown in Fig. 5.4. Using the adaptor supplied, connect
the flexible pipe to the condensate drain.
Ensure that the condensate discharge pipe is as required in Section 4.10.
5. Ensure that the gas service cock is closed (operating lever at right angle to valve) and do not turn on the water or gas
supplies at this stage.
Fig. 5.4
Fig. 5.3 - rear of boiler
Location for
wall mounting
bracket on
rear of boiler
Pour water into flue duct
(to fill condensate trap)
Heating return
(22 mm)
Heating flow
(22 mm)
Gas service cock
HF
R
Electrical connection
65
30
Bottom view
Top view
Wall
Wall
27
28
55
Condensate
discharge pipe
Gas inlet (22 mm)
Use compression
fittings
