Baxi Combi Instant 80 HE and 105 HE Quick Start Manual download pdf (Page 21)

8.0 Installation

8.1 Initial Preparation

The gas supply, gas type and pressure must be

checked for suitability before connection (see Section

7.4).

1. After considering the site requirements

(see Section 7.0) position the fixing template on the

wall ensuring it is level both horizontally and vertically.

2. Mark the position of the two most suitable fixing

slots for the wall plate and boiler lower fixing holes. It is

preferable to use the horizontal fixing slots.

3. Mark the position of the centre of the flue hole (rear

exit). For side flue exit, mark as shown (Fig. 16).

Note the shaded area on the template. Pipework

cannot be routed upwards behind the boiler.

5. If required, mark the position of the gas and water

pipes. Remove the template.

6. Cut the hole for the flue (minimum diameter

116mm).

7. Drill the wall as previously marked to accept the wall

plugs supplied. Secure the wall plate using the fixing

screws.

8. Using a spirit level ensure that the plate is level

before finally tightening the screws.

9. Connect the gas and water pipes to the valves on the

wall plate using the copper tails supplied. Ensure that

the sealing washers are fitted between the connections.

8.2 Flushing

1. Connect a tube to the central heating flow or return

pipe (Fig. 17).

2. Flush thoroughly (see System Details, Section 6.2).

3. The use of the optional Baxi Filling Loop Kit (Part No.

248221) will simplify the flushing and soundness

checking.

8.3 Preparing The Boiler

1. Remove all packaging.

2. Stand the boiler on its base by using the rear lower

edge as a pivot.

NOTE: A small amount of water may drain from

the boiler when the plastic caps are removed from

the boiler connections.

Fig. 16

Fig. 17

190mm

For Side Flue Exit

Central Heating Return

Flushing Tube

Wall Plate

Filling Loop

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Baxi Combi Instant 80 HE and 105 HE Quick Start Manual Page 21

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