Flue Options - Worcester Greenstar 2000 Installation And Maintenance Instructions Manual

Pre-Installation
Flue system bends
NOTICE
Effective flue lengths of bends:
Each bend used has an equivalent straight flue length.
▶ Refer to table 16.
Effective flue length
Bend 60/100
45° 0.5m
90° 1.5m
Table 16 Effective length of bends
4.4.2

Flue options

The systems have different maximum flue lengths, refer to the following
example flue options for those maximum flue lengths.
Horizontal high level flue assembly
Fig. 14 Horizontal flue option
• Flue length [L] (initial bend included in length calculation)
– 60/100 = 202 - 603mm
– 80/125 = N/A
Telescopic horizontal flue assembly
Fig. 15 Horizontal flue option
Telescopic horizontal flue assembly [A]
• Flue length [L] (adaptor bend included in length calculation)
– 60/100 = 180 - 570mm
– 80/125 = 405 - 600mm
Extended telescopic horizontal flue assembly [B]
• Flue length [L] (adaptor bend included in length calculation)
– 60/100 = 570 - 790mm
– 80/125 = N/A
20
80/125
0.5m
1.5m
60/100 mm
383 mm - 603 mm
130 mm Min
60/100 mm
[A] 350 mm - 570 mm
[B] 570 mm - 790 mm
130 mm Min
Horizontal fixed length flue assembly
Fig. 16 Horizontal flue option
• Flue length [L] (adaptor bend included in length calculation)
– 60/100 = 330 - 1,050mm
– 80/125 = N/A
Extended horizontal flue
Fig. 17 Horizontal flue option
• Flue length [L] (adaptor bend included in length calculation)
– Maximum flue length as stated in "Horizontal maximum flue
lengths".
Horizontal flue with additional 90° elbow
Fig. 18 Horizontal flue option
• Flue length [L] (adaptor bend included in length calculation)
– Maximum flue length as stated in "Horizontal maximum flue
lengths" minus the 90° bend equivalent straight flue length as
stated in Table 16 "Effective length of bends".
Horizontal flue with additional 90° elbows
Fig. 19 Horizontal flue option
• Flue length [L] (adaptor bend included in length calculation)
– Maximum flue length as stated in "Horizontal maximum flue
lengths" minus 2 x 90° bends equivalent straight flue length as
stated in Table 16 "Effective length of bends".
Greenstar 2000 – 6 721 820 552 (2021/02)
1050 mm
330 mm Min