Bulex Thema Condens AS 48-A, Manual, Page: 119 / 199

MAKSİCONDENSE 48-65
Notes
03/2020 113 T
EKNİK EĞİTİM VE DESTEK
5.2.3 Combustion quality requirements
The combustion air must be technically free of chemical substances such as fluorine, chlorine, sul-
phur, sprays, solvents and cleaning agents, paints, adhesives, etc. These types of substances may
lead to corrosion damage in the unit or in the flue system during open-flued operation.
If the combustion air is guided over the shaft's annular gap and to the heat production source, the
following applies:

Shafts that have been used and are not clean must be professionally cleaned and sealed before
the flue system is installed. Otherwise, this may lead to operating faults.

In this case, a double-walled system (flue gas-air mixture) should be used.
Particularly in hairdressing salons, paint shops or joiner's workshops, cleaning businesses and the
like, the unit must be operated as room-sealed. Otherwise, a separate installation room is required
to ensure that the combustion air is technically free of the aforementioned substances.
5.3 System requirements
5.3.1 Pump diagrams
5.3.1.1 Grundfos HEP for all markets
Pump diagram for Grundfos UPMM 25
–85; 7 heat exchanger coils
Key
1 Volume flow range without unit operation 4
ΔP constant
2
Volume flow range in limited temperature
and modulation mode
A Volume flow in l/hr
3 100% pump curve B
Remaining pump head
in hPa (mbar)