Flue Lengths/Flue Measuring & Cutting - Worcester GREENSTAR HIGHFLOW 440CDi Instruction Manual

1
EFFECTIVE MAXIMUM STRAIGHT FLUE
LENGTHS for Ø60/100mm Telescopic flue:
Appliance description
440CDi
550CDi
All dimensions in mm.
1 Example with one extension tube:
CUT LENGTH WITH ONE
10
EXTENSION = L - 410mm
B
A
22
FLUE LENGTHS
FLUE MEASURING & CUTTING
L
L max.
4000mm
4000mm
L
400
C E
FLUE LENGTHS
HORIZONTAL FLUE:
(60/100mm diameter)
For vertical flues and 80/125mmØ horizontal
flues, please refer to separate Flue manuals.
Ø60/100mm HORIZONTAL TELESCOPIC
FLUE LENGTHS:
The maximum effective straight flue lengths
(L) are stated opposite for the relevant
appliance and must not be exceeded.
1 Measure the total straight length (L)
along the flue route, then add the following
to length (L) to check the maximum flue
length is not exceeded:
2000mm for each extra 90° bend.
1000mm for each extra 45° bend.
FLUE MEASURING & CUTTING
Do not exceed the maximum straight
length for a horizontal Ø60/100mm flue
or a Ø60mm plume management system
(if used) as stated in this Instruction
Manual or Flue Manual.
Cutting the flue to an exact measure is not
110
normally required as the telescopic flue terminal
allows for adjustment.
1 Measure the flue length (L) from the
boiler inner case (A) along the flue route
to the outside wall (D).
D
Note, the terminal end projects beyond the
outside wall by the distance shown opposite.
A - Boiler inner case.
B - Flue connector.
C - Flue extension tube socket.
D - Outside wall.
E - Aluminium tape over terminal screwed
joint.
INSTALLATION & SERVICING INSTRUCTIONS
8 716 115 219c (03.2010)