Air Supply/Flue Gas Connections; Classification - Baxi POWER HT+ Series Installation And Service Manual

6 Installation
6.5

Air supply/flue gas connections

Tab.12 Configurations and recommendations for the flue system
Configuration Description
B – B Connection to a chimney using a connection kit (single pipe in a flue, combustive air taken from the boil­
23 23P
er room).
The maximum pressure drop in the pipes Δ Δ P must not exceed the values given in the table below. The
pipes must be certified for this type of use and for a temperature in excess of 100°C.
Tab.13 Maximum pressure drop
Model
POWER HT+ 1.50
POWER HT+ 1.70
POWER HT+ 1.90
POWER HT+ 1.110
C Air/flue gas connection using concentric pipes to a horizontal terminal (so-called forced flue).
13
The terminal parts of the singled-up discharge pipe must be scheduled inside a 50 cm square.
C Air/flue gas connection using concentric pipes to a vertical terminal (roof outlet).
33
The terminal parts of the singled-up discharge pipe must be scheduled inside a 50 cm square.
C Air/flue gas connection to a collective flue for sealed boilers.
43
The chimney or flue gas pipe must be suitable for such use.
C Separate air/flue gas connection using a bi-flow adapter.
53
The terminal parts of combustive air intake and combustion product discharge pipes must not be plan­
ned on opposite walls of the building.
C The maximum pressure drop in the pipes Δ Δ P must not exceed the values given in the table below. The
63
pipes must be certified for this type of use and for a temperature of more than 100°C. The terminal part
of the flue gas pipe must be certified as complying with the EN 1856-1 Standard.
If installing discharge and intake pipes not supplied by Baxi, these must be certified for the type of use
scheduled and present a maximum pressure drop in line with the values given in the table below.
Tab.14 Maximum pressure drop
Model
POWER HT+ 1.50
POWER HT+ 1.70
POWER HT+ 1.90
POWER HT+ 1.110
C Flue gas connection to a collective flue for sealed boilers. The air supply is individual via a terminal
83
coming from outside the building.
The chimney or flue gas pipe must be suitable for such use.
42
3. Connect the gas inlet pipe to the gas stop valve.
C C aution
Ensure that there is no dust in the gas pipe.
Connect the gas pipe in accordance with prevailing standards
and regulations.

6.5.1 Classification

Maximum pressure drop ΔP (Pa)
200
200
200
200
Maximum pressure drop ΔP (Pa)
270
270
320
370
Note
Lengths of the air/flue gas pipes, page
46.
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