Technical data

1312
The Greenstar Si series has the choice of 2 differently sized
horizontal RSF flue systems, 100mm and 125mm. Both systems
have different maximum lengths. Options 1 to 6
detail the permissible lengths.
Flue Diameter 100mm 125mm
Minimum Flue Length 342mm 250mm
Maximum Flue Length 4,600mm 13,000mm
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Worcester Bosch Part No.
100mm 125mm
Extension Flue Kit
1,000mm long
7 719 002 349 7 719 001 892
90º Elbow 7 719 002 348 7 719 001 891
45º Elbow 7 719 002 347 7 719 001 899
Vertical Adaptor 7 719 002 432 7 719 002 433
Horizontal RSF Flue
Standard flue kit
Comprises:
1 x Flue Turret Elbow
600mm (100mm dia) of flue duct
Part No. 7 719 002 345
(100mm dia)
Part No. 7 719 002 497
(100mm dia)
1,030mm (125mm dia) of flue duct
Part No. 7 719 002 350
(125mm dia)
including terminal (as measured
from centre of flue outlet)
Accessories
The following criteria should be noted when planning the installation.
– The flue system inclines 2
1
⁄2" (44mm per metre) from the appliance, to
prevent condensation from dripping from the flue terminal.*
– Because the appliance operates at high efficiency a white plume
of condensation will be emitted from the terminal. Care must be
taken when selecting the flue terminal position.
Option 1
STANDARD HORIZONTAL FLUE ASSEMBLY
Flue Components Required
25 & 30Si Models
Flue Diameter Description Quantity Worcester Bosch Part No.
100mm Standard Flue Kit 1 7 719 002 345/497
125mm Standard Flue Kit 1 7 719 002 350
Option 2
EXTENSION FLUE HORIZONTAL
Flue Components Required
25 & 30Si Models
Maximum total straight flue length
100mm 125mm
25 & 30Si 4,600mm 13,000mm
*The 100mm flue system exhaust pipe inclines 2 degrees within the 100mm air duct.
Flue Diameter Description Quantity Worcester Bosch Part No.
100mm Standard Flue Kit 1 7 719 002 345/497
100mm Extension Flue Kit up to 4 7 719 002 349
125mm Standard Flue Kit 1 7 719 002 350
125mm Extension Flue Kit up to 13 7 719 001 892
Maximum total straight flue length
100mm 125mm
25 & 30Si 725mm 1,030mm
Greenstar Si combi boiler series
horizontal fluing options
Boiler location & clearances
Bathrooms
The boiler can be installed in zones 2 or 3. If a mechanical or RF
mechanical timer is fitted to an Si combi, then it can only be installed
in zone 3.
See IEE wiring regulations.
IMPORTANT: any switch or appliance control using mains
electricity must not be able to be touched by a person using the bath
or shower.
Electrical switches, fused spur and socket outlets must not be
situated in the bathroom.
600mm
2250mm
600mm
750mm
600mm
2250mm
600mm radius
750mm
3 3
2 2
1 1
1 1
2
3