Hydraulic Installation; Condensate And Aav Discharge; Water Treatment - REMEHA Quinta 115 Technical Information

The Remeha Quinta boiler (twin connection only) is capable of operating with the
air inlet and flue outlet in different pressure zones (CLV System). There are some
restrictions to the flue/air inlet lengths and max height differences which have been
detailed in Fig. 09.
Maximum total length of air inlet and flue gas outlet pipework (L) as detailed in table
below (calculation based on using 1 x 90° bend).
Quinta 115
maximum Length L
eq. Length bend 45°
eq. Length bend 90°
Table 15 Calculation data different pressure zones
NOTE: This system may not be used in areas with adverse wind conditions (i.e. in
some coastal regions).
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.

7.4 Hydraulic installation

7.4.1 Condensate and AAV discharge

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 meter to ensure a good flow rate. Fill the siphon with clean water
before firing the boiler. It is not advisable to discharge into an outside gutter, because
of the risk of freezing.

7.4.2 Water treatment

• Use untreated tap water only to fill the CH system.
• The pH value of the system water must be between 6 and 9.
• In case inhibitors are being used, please follow the instructions given.
If used correctly water treatment can improve the boilers efficiency 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.
Ø 100 mm
m -
m 1.4
m 4.9
Remeha Quinta 115
Ø 125 mm
36
58
1
1,7