Bedienungsanleitung Remeha Gas 3002 (Seite 11 von 36) (Holländisch)

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5.3 Hydraulic circuits with Low Loss Header

5.3.1 Single boiler installation

The boiler is weather compensated, taking into account a

minimum return water remperature of 35°C and the cir-

cuits are also weather compensated. The heating curve

of the boiler is then set approx. 5°C higher than the high-

est demanding circuit. Each circuit has its own pump.

The water ﬂ ow is handled by a boiler pump sized for the

nominal ﬂ ow rate of the boiler.

All gas appliances must, by law, be installed by com pe-

tent persons (e.g. Corgi) in accordance with the above

regulations. Failure to install appliances correctly could

lead to prosecution.

It is in your own interest and that of safety to ensure that

the law is complied with.

In addition to the above regulations, this appliance must

be installed in compliance with the current I.E.E. Regula-

tions for electrical installation, local building regulations,

the Building Standards (Scotland), Consolidation Regula-

tions, by laws of the local water undertaking and Health

and Safety Document No. 635 'The Electricity at Work

Regulations 1989'. It should also be in accordance with

the relevant recommendations in the current editions of

the following British Standards and Codes of Practice,

viz. BS 5440 Pt 1 and 2, BS 5449, BS 5546, BS 6798,

BS 6891 and BG.DM2.

Important:

The Remeha Gas 3002 is a certiﬁ ed appliance and must

not be modiﬁ ed or installed in any way contrary to these

"Installation and Servicing Instructions". Manufacturers

Instructions must NOT be taken in any way as overriding

statutory obligations.

5.5 Flue gas discharge and air supply

5.5.1 General

The Remeha Gas 3002 is available in either a conven-

tional room ventilated or a room sealed (Type B13, C33,

C53 or C63) construction. Specify at the time of ordering

if the boiler is required to be supplied for room sealed

operation. In that case, the boiler will be supplied with an

air supply connection and a clamping band.

This connection must be ﬁ xed to the fan inlet (remove the

cover plate on the rear top casing).

- Conventional room ventilated operation:

The open boilers use ambient air as combustion air.

See para. 5.5.3 for a ﬂ ue gas discharge table of the

Remeha Gas 3002 in room ventilated construction.

- Room sealed operation:

A sealed system is obtained by using an air supply

pipe. Because of this, the number of potential boiler

locations within the building is increased and less strin-

gent requirements are imposed on the discharge loca-

tion, since the air supply and the ﬂ ue gas discharge are

in the same pressure area.

As open air is generally cleaner, the room sealed

option ensures max runtime before the heat exchanger

will need cleaning.

See para. 5.5.4 for a ﬂ ue gas discharge/air supply

table of the Remeha Gas 3002 in room sealed

construction.

- Fan dilution system:

Between boiler and fan dilution system has to be an

open connection (draft diverter).

Fig. 05 L.L.H. with boiler pump with a single boiler

installation

5.3.2 Modular boiler installation

Example: 1 x condensing boiler + 1 x standard boiler

in modular arrangement with water-side shutdown of the

boiler which is out of operation, by means of a butterﬂ y

valve. The boilers are directly weather compensated, ta-

king into account a minimum return water temperature of

35°C for the standard boiler.

The heating curve of the boiler is then set approx. 5°C

higher than the highest demanding circuit.

For more information concerning hydraulic diagrams con-

tact our technical sales department.

Please note:

1) If the water resistance of boilers 1 and 2 is not the

same, the boiler with the less resistance should have

a regulating valve.

2) The condensing boiler is always the lead boiler.

5.4 Installation instructions

The following instructions must be adhered to when the

Remeha Gas 3002 is installed:

Gas Safety (Installation and Use) Regulations 1984 (as

amended).

Fig. 06 L.L.H. with boiler pump in a modular boiler

installation

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