Water-Side Connections; Condensed Water Discharge; Water Treatment - REMEHA GAS 210-80 ECO PRO Technical Information

GAS 210 ECO PRO

5. Water-side connections

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5.1.1 Condensed water discharge

Discharge the condensed water directly into a foul water drain. In
view of the acidity level of condensate (pH between 3 and 5), only
use plastic material for the discharge pipe. After assembly, fill the
trap with clean water. Make an open connection with the drain. The
discharge pipe must slope down by at least 30 mm/m. Condensed
water must not be discharged into gutters or rain water down pipes.

5.1.2 Water treatment

• Use untreated tap water only to fill the CH system.
• The pH value of the system water must be between 7 and 9.
• Where inhibitors are being used, please refer to Broag recom-
mendations in this section and follow the manufactures instructi-
ons given.
If used correctly water treatment can improve the boilers ef ficiency
and increase the anticipated life expectancy of the boiler .

For further information a special document "Remeha water quality
regulations" is available from Broag. The regulations mentioned in
this document must be followed.
As most systems contain a variety of metals, it is considered good
practice to provide some form of water treatment in order to pre-
vent or reduce the following:
• Metallic corrosion
• Formation of scale and sludge
• Microbiological contamination
• Chemical changes in the untreated system water

All scale deposits, however small, will reduce the ef ficiency of the
boiler and should be prevented.
Suitable chemicals and their use should be discussed with a spe-
cialist 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 sys-
tems should be flushed thoroughly to BS 7593(1992) to remove
all traces of flux, debris, grease and metal swarf generated dur-
ing installation. Care to be taken with old systems to ensure any
black metallic iron oxide sludge and other corrosive residues are
removed, again by power flushing, ensuring that the system is
drained completely from all low points.

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.
5. Water-side connections
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