Worcester Greenstar 1000 GR1000W 24 C NG Installation And Maintenance Instructions Manual page 18

Gas-fired condensing combi appliance
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Pre-Installation
Telescopic horizontal flue assembly [A]
• Flue length [L] (adaptor bend included in length calculation)
– 60/100 = 350 - 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
Horizontal fixed length flue assembly
Fig. 16 Horizontal flue option fixed length
• 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 extended
• Flue length [L] (adaptor bend included in length calculation)
– Maximum flue length as stated in Table 12 "Maximum flue
lengths - Horizontal flues".
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 Table 12 "Maximum flue
lengths - Horizontal flues" minus the 90° bend equivalent straight
flue length as stated in Table 14 "Effective length of bends".
18
Horizontal flue with two additional 90° elbows
1050 mm
Fig. 19 Horizontal flue option
• Flue length [L] (adaptor bend included in length calculation)
330 mm Min
High level horizontal flue
0010042997-001
Fig. 20 Horizontal flue option
• Flue length [L] (initial bend included in length calculation)
High level horizontal flue with additional 90° elbow
0010042998-001
Fig. 21 Horizontal flue option
• Flue length [L] (initial bend included in length calculation)
0010042999-001
– Maximum flue length as stated in "Horizontal maximum flue
lengths" minus 2 x 90° bends equivalent straight flue length as
stated in Table 14 "Effective length of bends".
– Maximum flue length as stated in Table 12 "Maximum flue
lengths - Horizontal flues".
– Maximum flue length as stated in Table 12 "Maximum flue
lengths - Horizontal flues" minus the 90° bend equivalent straight
flue length as stated in Table 14 "Effective length of bends".
Greenstar 1000 – 6721835943 (2023/08)
0010043000-001
0010043003-001

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