Vertical Flue Option; Simpleswitch Flue Adaptor - Worcester Greenstar 4000 Installation And Maintenance Instructions Manual

High level horizontal flue with additional 90° elbows
Fig. 24 Horizontal flue option
• Flue length [L] (initial bend included in length calculation)
– Maximum flue length as stated in "Maximum horizontal flue
lengths" minus 2 x 90° bends equivalent straight flue length as
stated in Table 15 "Effective length of bends".
SimpleSwitch offset flue adaptor - horizontal
Fig. 25 SimpleSwitch flue adaptor
• Flue length [L]
– Maximum flue length as stated in "Maximum horizontal flue
lengths" minus the equivalent length of the SimpleSwitch flue
adaptor as stated in table Table 16 "Effective length of

SimpleSwitch flue adaptor".

Vertical balanced flue assembly
A = 300 mm
B = 500 mm
Fig. 26 Vertical flue option
• Flue length [L]
– Maximum flue length as stated in "Maximum vertical flue
lengths".
Greenstar 4000 – 6 720 891 162 (2020/09)
Vertical balanced flue with 90° elbow offset
A = 300 mm
B = 500 mm
Fig. 27 Vertical flue option
• Flue length [L]
– Maximum flue length as stated in "Maximum vertical flue lengths"
minus 2 x 90° bends equivalent straight flue length as stated in
Table 15 "Effective length of bends".
Vertical balanced flue with 45° elbow offset
A = 300 mm
B = 500 mm
Fig. 28 Vertical flue option
• Flue length [L]
– Maximum flue length as stated in "Maximum vertical flue lengths"
minus 2 x 45° bends equivalent straight flue length as stated in
Table 15 "Effective length of bends".
SimpleSwitch offset flue adaptor - vertical
Fig. 29 SimpleSwitch flue adaptor
• Flue length [L]
– Maximum flue length as stated in "Maximum vertical flue lengths"
minus the equivalent length of the SimpleSwitch flue adaptor as
stated in table Table 16 "Effective length of SimpleSwitch flue
adaptor".
Pre-Installation
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