Flue Installation; Measuring The Flue (Standard Flue); Reducing The Telescopic Flue Length - Worcester GREENSTAR Ri Installation And Servicing Instructions

4.5

FLUE INSTALLATION

HORIZONTAL FLUE (60/100mm diameter)
For vertical flues and 80/125mm horizontal flues, please
refer to separate instructions supplied with the flue kit.
To ease assembly of flue components, apply
silicone lubricant to sealing surfaces.
Basic instructions for the 60/100mm diameter flue are
shown below.
Edge
of
195 mm
case
Fig. 28 Flue turret centre
4.5.1

MEASURING THE FLUE (STANDARD FLUE):

B Measure from the outside of the wall to the centre line
of the flue turret to determine length L.
B Subtract 50mm from the length L to give the correct
dimension to the flue elbow connection.
B If the length L falls within the telescopic range of 350
to 570mm, then no cutting will be required.
B If the required length is less than 350mm the standard
telescopic flue can be modified, refer to following
section.
B If the required length is greater than 570mm, then flue
extensions will have to be used. Refer to the 60/100
Horizontal Flue Instruction manual provided in the
telescopic flue kit.
Adjusting the telescopic flue length:
570 mm
350 mm
2
Fig. 29 Standard telescopic flue
Extend tube (1) by withdrawing from tube (2) to achieve
the flue length required, between 350- 570mm.
Secure with screw provided and seal joint with the
aluminium tape supplied.
6 720 644 744a (2010/10)
WALL
127 mm
6720644744-20.1Wo
L
1
6720643895-30.1Wo
4.5.2

REDUCING THE TELESCOPIC FLUE LENGTH:

Ensure that the "TOP" label is facing up
before securing the flue section to the
turret.
The flue terminal MUST be fitted with the 'TOP' label
uppermost to allow the correct fit and use of the plume
management system.
3
2
Fig. 30 Reducing the standard terminal
B Remove securing screws (3) to detach the terminal
assembly from the turret.
B Slide terminal section (2) from the terminal assembly
and discard.
B To use terminal (1) without cutting remove the
location lug (4) on the inner flue tube (5) and remove
any burrs.
To reduce the flue length further:
1
4
5
Fig. 31 Further reduction
B Mark the length required for the terminal as shown
(min. 130mm) and cut square, taking care not to
damage the tubes.
B Remove any burrs and chamfer the outer edge of the
tubes to assist ease of connection and prevent seal
damage.
The aluminium tape is not required when
reducing the terminal.
INSTALLATION
1
6720643895-31.1Wo
265 mm
130 mm
MIN
6
6720643895-32.2Wo
29