Baxi Potterton Boiler Wartungshandbuch PDF herunterladen (Seite 21)

912.823.1 - GB

INSTRUCTIONS PERTAINING TO THE INSTALLER

Connect the boiler to the ue using a pipe made of stainless steel or plastic material with an internal diameter

of 100 mm, capable of resisting normal mechanical stresses over time, as well as high temperatures (<120°C)

and the chemical effects of fuel gases and their condensates. Insert the ﬂue-gas union and fasten the

connector to the ﬂue-gas thermostat before hooking up to the ﬂue.

Whenever possible use a ue connection that can be disconnected for maintenance.

Important! Horizontal ﬂue sections must have a minimum slope of 3° towards the boiler.

Flue accessories made of plastic material for cascade or single installations are available.

11. CHIMNEY FLUE CONNECTION

Figure 7a

CT_0809 / 0902_2705

CT0667 / 0903_1601

In case exhaust and intake ﬂues not supplied by POTTERTON COMMERCIAL have been installed, these must

be certiﬁed for the type of use and must have a maximum pressure drop in according to the values reported in

the table.

To ensure the correct rated heat input to the maximum and minimum heat input, it is necessary to update the speed (rpm)

of the fan, it depends on the lenght of the pipes, in accordance with the installation of ue and air pipes as indicated in

the tables below. The factory-set value is referred to the minimum length of ue pipe (0÷10 m). To carry such updating,

changing the speed of the fan at the (rpm and pwm%) , refer to par. 13-14.

Max. length of ue duct (L) : 20 m

Each 90° bend reduces the duct max. length by : 1 m

Each 45° bend reduces the duct max. length by : 0.5 m

FLUE PRESSURE TABLE AVAILABLE

Cascade solution

∆P available

ue duct B23 Ø 100

∆P available with

single non-return valve

Ø 110/110

∆P available with

double non-return valve

Ø 110/110

FS 90 110 110 -

FS 105 150 110 -

FS 130 170 - 80

FS 160 280 - 120

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Baxi Potterton Boiler Wartungshandbuch Seite 21