1 Flue pipe
2 Flue gas analysis point
3 Expansion vessel
4 Internal pump
5 3-way valve
6 Electronics box
7 Expansion relief valve
8 Condensate siphon
9 Secondary heat ex-
changer
10 Pressure sensor
11 Air intake pipe
12 Ignition transformer
13 Gas valve
14 Ignition electrode
15 Gas-air mixture unit
4 Installation
4.1 Transporting the unit
Important: With regard to the regulations of 1992 concern-
ing the manual handling of loads, the unit exceeds the
weight that can be lifted by a single person.
4.1.1 General
▶ Hold the load as close as possible to your body. Avoid
rotational movements. Instead, reposition your feet.
▶ If the unit is being lifted by two persons, ensure your
movements are coordinated during lifting.
▶ Avoid bending your upper body – do not lean forwards or
to the side.
▶ Wear suitable non-slip protective gloves in order to pro-
tect your hands against sharp edges. Ensure that you are
carrying the load securely.
▶ If required, get somebody to assist you in this.
4.1.2 Unloading the box from the delivery van
▶ It is recommended that two people lift the unit together.
▶ Lift the box using the straps provided.
▶ Use safe lifting techniques – keep your back straight and
bend your legs at the knee.
▶ Hold the load as close as possible to your body.
▶ If the unit is being lifted by two persons, ensure your
movements are coordinated during lifting.
▶ If required, get somebody to assist you in this.
4.2 Unpacking the product
1. Remove the product from its box.
2. Remove the protective film from all of the product's
components.
4.3 Checking the scope of delivery
▶ Check that the scope of delivery is complete and intact.
Number Description
1 Heat generator
1 Hanging bracket
1 Screw
1
Flexible condensate drain pipework
6 3/4" seals
4 1/2" seals
2 Service valve (heating flow and return)
1 Hot water connection service valve
1 Gas isolator cock
2 Connection pipe (heating flow and return)
1 Cold water connection pipe
1 Hot water connection pipe
1 Gas pipe
1 Expansion relief valve discharge pipe
1 Installation template
1 Enclosed documentation
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