Modular Installations; Hydraulic Installation; Condensate And Aav Discharge; Water Treatment - REMEHA Quinta 30 Technical Information

High-effi ciency condensing boiler

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NOTE: If the design parameters are outside the values shown in the above table or

there is any doubt over the flue system, please contact our technical department for

calculation to be undertaken.

7.3.7 Modular installations

For flue gas-side and air-side connections for multiple boilers in cascade configuration,

refer to Broag for advice.

Discharge the condensate and AAV relief via a tundish, directly into a drain. Only use

synthetic material for the connecting piping, because of the acidity (pH 2 - 5) and allow

a min. of 30 mm per M to ensure a good flow rate. Fill the siphon with water before

firing the boiler.

It is not advisable to discharge into an outside gutter, because of the risk of freezing.

The system should be filled with mains cold water (for the UK this will usually have a

pH of between 7 and 8).

Pressurised installations with a boiler/system content ratio of 1:10 or less should not

require water treatment, provided that the following conditions apply:

- The system is flushed thoroughly to remove all fluxes and debris and filled comple-

tely once.

- Make up water is limited to 5% per annum.

- The hardness of the water does not exceed 360 ppm (20°D).

All scale deposits will reduce the efficiency of the boiler and should be prevented.

However provided the above is complied with any scale produced will not be too detri-

mental to the boiler efficiency and will not reduce the anticipated life expectancy of the

boiler.

NOTE: Scale deposits in excess of 5 mm will reduce boiler efficiency and increase the

risk of premature casting failure.

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Remeha Quinta 30

1-4-2009 14:35:52

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