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The Remeha Quinta boilers (twin connection only) are 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).
max eq. Length
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.
7.3.7 Modular installations
For flue gas-side and air-side connections for multiple boilers in cascade configuration,
refer to Broag for advice.
7.4 Hydraulic installation
7.4.1 Condensate discharge
Discharge the condensate 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.
7.4.2 Water treatment
The system should be filled with mains cold water (for the UK this will usually have a
pH of between 7 and 8).
Power flush the pipes and radiators thoroughly to remove all fluxes and debris before
connecting the boiler to the central heating system in accordance with BS 7593 (1992).
55979.indd 38
55979.indd 38
Quinta 45
80 mm
m
20
m
1.2
m
4
38
Remeha
Quinta 45/65
Quinta 65
100 mm
8
1.4
4.9
2-4-2009 9:42:39
2-4-2009 9:42:39
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