Flue Installation; Measuring The Flue (Standard Flue); Reducing The Telescopic Flue Length - Worcester GREENSTAR 24i Junior Installation, Commissioning And Servicing Instructions

INSTALLATION
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
200 mm
of
case
Fig. 34 Flue turret centre

4.5.1 MEASURING THE FLUE (STANDARD FLUE):

▶ Measure from the outside of the wall to the centre line of the flue turret
to determine length L.
▶ Subtract 50mm from the length L to give the correct dimension to the
flue elbow connection.
▶ If the length L falls within the telescopic range of 350 to 570mm or
570 to 790mm using the longer telescopic flue, then no cutting will be
required.
▶ If the required length is less than 350mm the standard telescopic flue
can be modified, refer to fig. 36.
▶ If the required length is greater than 570mm, then the longer
telescopic flue, giving a range of 570 - 790mm, can be used
▶ If the required length is greater than 790mm, then flue extensions will
have to be used. Refer to the 60/100 Horizontal Flue Instruction
manual provided in the telescopic flue kit.
▶ Refer to section 3.8 for flue options.
Adjusting the telescopic flue length:
570 mm
350 mm
2
Fig. 35 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.
24
WALL
189 mm
6720643895-29.1Wo
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. 36 Reducing the standard terminal
▶ Remove securing screws (3) to detach the terminal assembly from the
turret.
▶ Slide terminal section (2) from the terminal assembly and discard.
▶ 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. 37 Further reduction
▶ Mark the length required for the terminal as shown (min. 130mm) and
cut square, taking care not to damage the tubes.
▶ 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.
1
6720643895-31.1Wo
265 mm
130 mm
MIN
6
6720643895-32.2Wo
6 720 802 047 (2013/05)