Plumbing Manifold; Connections; Flue Options - Worcester 27Ri Compact Installation, Commissioning And Servicing Instructions

PRE-INSTALLATION
3.6

PLUMBING MANIFOLD

3.6.1 CONNECTIONS

Heating System 22mm compression fittings
Gas 22mm compression fitting
Use the fittings supplied in the Hardware literature pack.
1 2
Fig. 13 Pipe dimensions
4 3
3
4
Fig. 14 Plumbing manifold
Key to figures 13 & 14:
[1] Condensate 22mmØ - Distance to left edge of case = 33mm
[2] Gas 22mmØ - Distance to left edge of case = 65mm
[3] Primary flow 22mmØ - Distance to left edge of case = 247mm
[4] Primary return 22mmØ - Distance to left edge of case = 312mm
14
3 4
1
2
3.7

FLUE OPTIONS

WARNING: Flue systems
▶ Only use Worcester, Bosch approved flue systems, no
other manufacturer's flue systems have been
approved for use with Worcester appliances.
CAUTION: Non accessible flue systems:
▶ Where a flue system is not going to be accessible,
provision must be made for service and inspection.
▶ Voids containing concealed flues must have at least
one inspection hatch no less than 300mm square.
▶ Flue joints within the void must not be more than 1.5
metres from the edge of the inspection hatch.
▶ Inspection hatches should be located at changes of
direction.
▶ If this is not possible, bends should be viewable from
both directions.
NOTICE: Effective flue lengths:
▶ each 90° bend is equivalent to 2 metres of straight flue
▶ each 45° bend is equivalent to 1 metre of straight flue
Ri Compact boilers
FLUE TYPE
1 Telescopic horizontal flue assembly
Longer telescopic horizontal flue assy.
2 Horizontal flue extension
3 Horizontal flue with 1 x 90° bend
4 Horizontal flue with 2 x 90° bends
5 High level horizontal flue
6 High level horizontal flue
with 2 x 90° bends
7 High level horizontal flue
with 3 x 90° bends
8 Vertical balanced flue assembly
9 Vertical balanced flue with 2 x 90° bends
10 Vertical balanced flue with 2 x 45° bends
Table 7 Flue options
Plume management kits are available for the 60/100
horizontal flue system.
Refer to the manual supplied with the Plume
Management kits for complete installation instructions
The flue systems have different maximum flue lengths:
The Greenstar series has the option of two horizontal 60/100 RSF
(telescopic and longer telescopic) and one horizontal 80/125 RSF
(telescopic) flue system and two vertical RSF (60/100 or 80/125) flue
systems:
The next page shows various fluing options.
Refer to the Flue options in table 7 for the straight flue lengths required
to achieve the maximum flue length.
Part number Flue Description
7 716 191 082 60/100 Telescopic horizontal flue assembly
7 716 191 171 60/100 Longer telescopic horizontal flue assembly
7 719 003 702 80/125 Telescopic horizontal flue assembly
7 719 002 430 60/100 Vertical flue assembly
7 719 002 431 80/125 Vertical flue assembly
Greenstar Ri Compact 6 720 646 610 (2013/12)
Maximum total flue
length L (mm)
60/100 80/125
130 - 570 405 - 600
570- 790 NA
6,000 15,000
4,000 13,000
2,000 11,000
6,000 15,000
4,000 13,000
2,000 11,000
6,000 15,000
2,000 11,000
4,000 13,000