PRE - INSTALLATION
STANDARD FLUE HORIZONTAL
A
Ø100
MAX 686 A x 1 MIN 250 A x 1*
Ø125
MAX 1070 A x 1 MIN 250 A x 1* * Requires cutting
MAXIMUM FLUE HORIZONTAL
A
B
Ø100 - 4600mm A x 1 + B x 5
Ø125 - 13000mm A x 1 + B x 13
MAXIMUM FLUE VERTICAL START + 2 BENDS
A
F
B
C
Ø100 - 2600mm
A x 1 + C x 2 + B x 4 + F x 1
Ø125 - 11000mm
A x 1 + C x 2 + B x 13 + F x 1
MAXIMUM FLUE VERTICAL START + 3 BENDS
A
F
B
C
Ø100 - N/A
Ø125 - 9000mm
A x 1 + C x 3 + B x 11 + F x 1
FLUE OPTIONS
•The diagrams (opposite) show the components used and the maximum flue length for each configuration of 100mm and 125mm flues.
•Shaded flue components indicate the standard 100mm horizontal flue.
•Only straight flue sections can be reduced in length and cut.
•The flue terminal end can be fitted from the inside or outside of the building.
•Fixing kits are supplied with the flue extension kits.
•Horizontal 125mm and Vertical 100mm and 125mm flue kits are available with separate instructions. Contact your supplier or Worcester.
A - Standard horizontal flue (100mm diameter shown)
B - Straight flue extension
C - Flue bend 90°
D - Flue bend 45°
MAXIMUM FLUE VERTICAL START + 1 BEND
F | A |
| B |
C |
|
Ø100 - 4600mm
A x 1 + C x 1 + B x 5 + F x 1
Ø125 - 13000mm
A x 1 + C x 1 + B x 13 + F x 1
MAXIMUM FLUE HORIZONTAL + 1 BEND
A
B
C
Ø100 - 2600mm
A x 1 + B x 3 + C x 1
Ø125 - 11000mm
A x 1 + B x 11 + C x 1
17
MAXIMUM FLUE VERTICAL WITH 2 x 45° BENDS
E
B
D
Ø100 - 4400mm (including terminal)
B x 5 + D x 2 + E x 1
Ø125 - 13000mm (including terminal)
B x 13 + D X 2 + E x 1
VERTICAL FLUE WITH 2 x 90° BENDS
E
B
C
Ø100 - 2400mm (including terminal) B x 4 + C x 2 + E x 1
Ø125 - 11000mm (including terminal) B x 13 + C x 2 + E x 1
E - Vertical terminal (vertical adaptor supplied with terminal)
F - Vertical adaptor (used with horizontal terminal)
Calculating the flue length:
Measure the total flue length required, noting that the maximum straight flue length including the terminal is:
Horizontal 60/100mm: 4600mm
Horizontal 80/125mm: 13000mm
Vertical 60/100mm: 6400mm
Vertical 80/125mm: 15000mm
Then reduce the total straight flue length for each extra flue bend (excluding the flue elbow) by:
2000mm for 90° 1000mm for 45°
Flue Extension lengths:
Horizontal & Vertical 60/100mm: 960mm
Horizontal & Vertical 80/125mm: 1000mm
Flue Terminal lengths:
Horizontal 60/100mm: 800mm including terminal
Horizontal 80/125mm: 1200mm including terminal
Vertical 60/100mm: 1140mm to top of terminal
Vertical 80/125mm: 1365mm to top of terminal
FLUE OPTIONS
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR 24 i junior/28 i junior 8 716 107 336b (11/05)
