- 34 -
INSTALLATION
• Calculation of the useful capacity of the vessel
(Cu):
• Calculation of the real capacity of the vessel
(Cr):
When the boiler directly supplies an under floor hea-
ting system and this system is also used to produce
domestic hot water (THI 10-50 C + BS), the header
gives the capacity to absorb the excess heat produ-
ced at the end of the hot water heating cycle. In or-
der to ensure mixing, check that the under floor
heating flow is greater than the boiler flow.(refer to §
1 - page 38 - chapter V - SETTINGS OF THE INS-
TALLATION TYPES).
Taking into account the available boiler outlet pres-
sure, the THI 10-50 must be fitted with an extra hea-
der (rep. 17, fig. 36
,
fig. 37)) and a heating pump
(rep. 18, fig. 36
,
fig. 37) ) in order to ensure suffi-
cient flow in both the boiler and the installation. This
pump is controlled by the clip-in relay (optional ex-
tra). It allows the boiler pump and the heating pump
to work in parallel. The header has the advantage of
providing total hydraulic independence for the boiler
and heating circuits. (Refer to § 1.2 - page 39 -
chapter V - SETTINGS OF THE INSTALLATION
TYPES).
5.3 - Under-floor recommendations
5.4 - Heat exchanger flow rate
Cu
total volume expansion
´
=
Cu
108 8
,
0 06
,
´
6 5 dm
3
,
=
=
Cr
Cu
R
-------
=
Cr
6 5
,
0 5
,
---------
13 litres
=
=
Summary of Contents for THI 10-50c
Page 61: ... 64 XII NOMENCLATURE THRi 10 50 C ...
Page 64: ... 67 NOMENCLATURE CONTROL BOX ...
Page 66: ... 69 NOTES ...
