Ariston microSYSTEM Installation Instructions Manual - Page 8

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2.8

ONNECTION

2.9

ATER

ONNECTIONS

. 2.4

marked "L".

Note: The diagrams for the electrical system are indicated in section 2.12.

Warning, this appliance must be earthed.

External wiring must be correctly earthed, polarised and in accordance with

relevant regulations / rules. In GB this is the current I.E.E. WIRING

REGULATIONS. In IE reference should be made to the current edition of the

ETCI rules. This boiler is supplied for connection to a 220 - 240 V~ 50 Hz

supply.

The supply must be fused at 3 A.

The method of connection to the electricity supply must facilitate complete

electrical isolation of the appliance, by the use of a fused double pole

isolator having a contact separation of at least 3 mm in all poles or

alternatively, by means of a 3 A fused three pin plug and unswitched

shuttered socket outlet both complying with BS 1363.

The point of connection to the Electricity supply must be readily accessible

and adjacent to the appliance unless the appliance is installed in a bathroom

when this must be sited outside the bathroom (see section 2.3).

The local gas region contractor connects the gas meter to the service pipe.

The gas installation should be in accordance with the relevant standards. In

GB this is BS6891 and in IE this is the current edition of I.S.813. The

connection the the appliance is a 22mm copper tail located at the rear of the

gas service cock (F

. 2.3). If the gas supply for the boiler serves other

appliances ensure that an adequate supply is available both to the boiler

and the other appliances when they are in use at the same time. Pipe work

must be of an adequate size. Pipes of a smaller size than the boiler inlet

connection should not be used.

. 2.3

EGEND

A = Central Heating Flow

C = Gas Inlet

E = Central Heating Return

F = Safety Valve

G = Pump transportation screw

(remove before igniting the boiler)

H = Automatic By-pass pipe

IEW OF THE

OILER

ONNECTIONS