Manual Wanders Norma Free (page 23 of 65) (English, German, Dutch, French)

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General instructions

Your gas hearth must only be installed by a certiﬁed

installer and only in combination with the WANDERS

concentric pipe system. Only then will the hearth be

approved according to the European CE standards for

gas appliances. We will not give any guarantees if the

gas hearth is ﬁtted and/or installed in an incomplete or

improper manner. The pipe system consists of an inner

pipe with a diameter of 100 millimetres and an outer

pipe with a diameter of 150 millimetres.

The appliance may only be installed and ﬁtted by a

certiﬁed installer in accordance with current universal

gas piping regulations and according to the installation

instructions mentioned below. Furthermore, the

national and local rules and regulations on placing and

using closed gas appliances shall be applicable. Only

certiﬁed installers are authorized to change the preset

values (in line with the regulations) or make any other

adjustments.

Before installing the appliance, the installer must check

whether the information on the type tag of the ﬁreplace

corresponds with the gas type and gas pressure to which

the appliance is connected. If it does not match, it is not

allowed to connect the gas unit.

Placing

The gas hearth must not be built into the wall. The

distance from the hearth to the rear wall must be at least

10 cm. The gas hearth must be placed on a ﬂoor that is

solid enough to hold it.

The gas hearth can be placed in a crack-free and/or

mechanically ventilated home without difﬁculty. There

is no need for extra ventilation for combustion, or for

a smoke and ﬁre vent. Waste gases are discharged by

natural draught via the inner pipe into the open. The

oxygen needed for burning the ﬁre is supplied from

the space between the pipes. This is the reason that no

Installation instructions

General instructions 23

Placing of the concentric channel system 24

Installation 25

Completing the installation 26

Technical data for kind of gas and consumption 28

insulation must be placed between the inner and the

outer pipe.

Insulation

Due to the high temperatures of the exterior walls (up to

approximately 150 °C or 300 °F) it is prohibited to have

any combustible materials close to the channel system.

The entire concentric pipe system should be encased

(heat resistant) from the place where it is out of sight up

to the outlet in the exterior wall. Ventilate the encased

concentric pipe system by placing a grid near the ﬂoor

and the ceiling on every ﬂoor. Use universal wall clips

with a diameter of 150 mm for anchoring the concentric

pipe system.

If an existing chimney is used, ﬁrst make sure whether

the chimney is sufﬁciently insulated and with sufﬁcient

diameter to accommodated the concentric pipe system.

If the chimney was previously used as a wood-burning or

coal-ﬁred stove, the chimney must ﬁrst be professionally

cleaned. You must use special WANDERS connecting

sets for connecting a gas hearth to an existing chimney.

Gas connection

• Use a feed pipe with an approved G3/8” stop cock

with coupling.

• De-aerate the supply pipe before ﬁtting and fastening

the appliance.

• Avoid all tension on the operating valve and pipes to

avoid gas leakage.

• Check if the connection is gastight.

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Wanders Norma Free Manual

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