Baxi POWER HT+ Series Installation, User And Service Manual page 55

Tab.17 Configurations and recommendations for the flue system
Configuration Description
B – B Connection to a chimney using a connection kit (single pipe in a flue, combustion air taken from the boil­
23 23P
er room).
The maximum pressure drop in the pipes ΔP 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.18
Model
POWER HT+ 1.130
POWER HT+ 1.150
POWER HT+ 1.200
POWER HT+ 1.250
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 combustion 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 ΔP must not exceed the values given in the table below. The
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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.19
Model
POWER HT+ 1.130
POWER HT+ 1.150
POWER HT+ 1.200
POWER HT+ 1.250
C Flue gas connection to a collective flue for sealed boilers. The air supply is individual via a terminal
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coming from outside the building.
The chimney or flue gas pipe must be suitable for such use.
7702630 - v02 - 11082018
The pipes must deliver a maximum pressure drop in compliance with the
values given in the table below.
Maximum pressure drop ΔP (Pa)
200
200
200
200
Maximum pressure drop ΔP (Pa)
170
280
230
230
Important
Only original components are authorised for connection to the
boiler and for the terminal.
The clear section must comply with the standard.
The chimney must be swept before installing the discharge flue.
Caution
Ensure that the flue gas discharge pipes are securely attached to
the wall with suitable retaining flanges to prevent any damage and
guarantee the tightness of every gasket in the circuit.
Caution
The minimum gradient of the condensates discharge pipe from the
boiler to the waste water discharge must be 1 cm per linear metre.
7 Installation
POWER HT + 55