REMEHA Quinta 30 Technical Information page 37

High-effi ciency condensing boiler

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As most systems contain a variety of metals, it is considered good practice to provide

some form of water treatment (especially in open vented systems) in order to prevent

or reduce the following.

- Metallic corrosion

- Formation of scale and sludge

- Microbiological contamination

- Chemical changes in the untreated system water

Suitable chemicals and their use should be discussed with a specialist water treatment

company prior to carrying out any work (environmental aspects, health aspects). The

specification of the system and manufacturers recommendations must be taken into

account, along with the age and condition of the system. New systems should be flu-

shed thoroughly to remove all traces of flux, debris, grease and metal swarf generated

during installation. Care to be taken with old systems to ensure any black metallic iron

oxide sludge and other corrosive residues are removed, again by thoroughly flushing,

ensuring that the system is drained completely from all low points.

NOTE: Please ensure that the new boiler plant is not in circuit when the flushing takes

place, especially if cleansing chemicals are used to assist the process.

IMPORTANT: Under no circumstances is the boiler to be operated with cleaning che-

micals in the system.

To Summarise:

- Minimise water loss

- Prevent pumping over in open vented systems

- Provide adequate air venting at all high points

- Maximum chlorine content of 200 mg/l

Take advice on the suitability of inhibitors for use with aluminium

MAX pH of 8.5 when using additives (max. pH of 9 without additives)

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