Technical data

ManualsBrandsWorcester ManualsBoiler550CDi

Option 1: Vertical balanced flue assembly

Components

Part No. 100mm

7 716 191 156 7 716 191 083

Part No. 125mm

7 716 191 158 7 719 003 666

Maximum lengths (mm) & no. of components required

Greenstar Highﬂ ow CDi series

100mm 6,400 1 up to 6

125mm 15,000 1 up to 14

300mm

500mm

Pitched

roof

Flat roof

Option 2: Vertical balanced flue using two 45º bends

Components

Part No. 100mm

7 716 191 156 7 716 191 083 7 716 191 085

Part No. 125mm

7 716 191 158 7 719 003 666 7 719 003 665

Maximum lengths (mm) & no. of components required

Greenstar Highﬂ ow CDi series

100mm 4,900 1 up to 5 2

125mm 13,000 1 up to 12 2

Min.

120mm

Option 3: Vertical balanced flue using two 90º bends

Components

Part No. 100mm

7 716 191 156 7 716 191 083 7 716 191 084

Part No. 125mm

7 716 191 158 7 719 003 666 7 719 003 664

Maximum lengths (mm) & no. of components required

Greenstar Highﬂ ow CDi series

100mm 3,400 1 up to 3 2

125mm 11,000 1 up to 10 2

Min.

120mm

Note: The short flue extension (100mm dia.) may be used

as an alternative to the standard extension as required up to

the maximum flue lengths stated (Part No. 7 716 191 133).

45º bend 90º bend

Greenstar Highﬂ ow CDi

60/100mm ﬂ ues

750mm 1,500mm

Greenstar Highﬂ ow CDi

80/125mm ﬂ ues

750mm 1,500mm

Note: The maximum ﬂ ue length must be reduced by the

following amounts for each bend used.