Hotpoint GX901X manual Installation, Kitchen ventilation, Category II 2H3+, Class, Positioning

Installation

The following instructions are provided for qualified installers so that they may accomplish installation, adjustment and technical maintenance operations correctly and in compliance with current regulations and standards.

Important: the hob should be disconnected from the mains electricity supply before any adjustment, maintenance, etc. is carried out. Maximum caution should be used whenever it is necessary to keep the appliance connected to the electricity supply.

The hobs have the following technical characteristics:

-Category II 2H3+ -Class 1

Positioning

This appliance may only be installed and operated in permanently ventilated rooms in compliance with provisions laid down by current regulations and standards. The following requirements must be observed: Either:

•The appliance must discharge combustion products into a special hood, which must be connected to a chimney, flue pipe or directly to the outside (fig.1).

OR

•If it is impossible to fit a hood, the use of an electric fan is permitted, either installed on a window or on an external wall, which must be switched on at the same

time as the appliance.

fig.1

In a chimney stack or branched flue Directly to the outside

(exclusively for cooking appliances)

Kitchen ventilation

The air flow into the room where the appliance is installed must equal the quantity of air that is required for regular combustion of the gas and for ventilating the same room. Air must be taken in naturally through permanent apertures made in the outside walls of the room or through single or branching collective ventilation ducts in compliance with the standards in force.

The air must be taken directly from the outside, from an area far from sources of pollution.

The ventilation aperture must have the following characteristics (fig.2A):

-total free cross section of passage of at least 6 cm² for every kW of rated heating capacity of the appliance, with a minimum of 100 cm² (the heating capacity is indicated on the rating plate);

-it must be made in such a way that the aperture, both on the inside and outside of the wall, cannot be obstructed

-it must be protected, e.g. with grills, wire mesh, etc. in such a way that the above-mentioned free section is not reduced;

-it must be situated as near to floor level as possible.

Detail A	Adjacent	Room to be
	room	ventilated

A
Examples of ventilation holes
for comburant air	between window and floor
Fig. 2A	Fig. 2B

The air inflow may also be obtained from an adjoining room, (provided the latter is not a bedroom or a room where there is a risk of fire, such as garages, fuel stores, etc.) which is ventilated in compliance with the standards in force.

Air from the adjoining room to the one to be ventilated may be made to freely pass through permanent apertures with a cross section at least equal to that indicated above. These apertures may also be obtained by increasing the gap between the door and the floor (fig.2B).

If an electric fan is used for extracting the combustion products, the ventilation aperture must be increased in relation to its maximum performance. The electric fan should have a sufficient capacity to guarantee 3 to 5 air changes an hour, ie. the fan should extract, per hour, 3 to 5 times the room volume.

Prolonged, intensive use of the appliance may require extra ventilation, e.g. via an open window or by increasing the extraction power of the electric fan.

Liquid petroleum gas descends towards the floor as it is heavier than air. Apertures in the outside walls in rooms containing LPG cylinders should therefore be at floor level, in order to allow any gas from leaks to be expelled. Do not store LPG cylinders (even when empty) in basements/rooms below ground level; it is advisable to keep only the cylinder in use in the room at any one time and connected far from heat sources which could raise its temperature to above 50 °C.

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