Worcester Greenstar Ri User Manual page 22

Clamp
Extension
94mm
21
FLUE INSTALLATION
Clamp
2380mm
734mm Standard Flue
Cut Length
Required Length
94mm
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER BOSCH GREENSTAR Ri
FLUE INSTALLATION
MEASURING THE FLUE (Extension Flue Kits):
ONLY CUT EXTENDED FLUE LENGTHS
As with the Standard Flue measure from the
outside wall to the centre line of the flue
turret.
Subtract the length of the Standard Flue
and turret (725mm) from length L .
Subtract the full length 1m extension(s)
from the figure.
Cut one of the 1m extensions to the remainder.
Cut both tubes square taking care not to distort
the tubes.
Remove any burrs.
EXAMPLE:
Subtract Standard Flue+Turret
Subtract Full Extension
NOTE: The minimum length a flue extension
can be cut to is 100mm
NOTE: Where extensions are reduced, cut
length which DOES NOT contain the seal.
Seal
ADDITION OF FLUE BENDS:
When flue bends are being used an allowance
of 98mm per bend must be allowed from the
centre line of the bend. In the example shown
using a flue extension with 2 bends will
achieve a total length of 1148mm.
8 716 109 699a (05/05)
Length L = 2380mm
— 686mm
— 960mm
Cut Length = 734mm