14
10
Installation
The appliance is supplied suitable for fitting to a sealed system.
10.1 FLUE OPTIONS.
The standard flue length is from 135mm to 615mm measured
from the appliance casing to the outer wall.
Extension flue kits, a vertical take-off adapter, and 90° flue bends
and 45° flue bends are available to increase the length and
redirect the flue as follows.
Horizontal balanced flue:
a) From 135mm to 4000mm straight flue.
b) From 135mm to 2500mm when a 90°
flue bend is required
c) From 135mm to 1000mm when two 90° flue bends are
required
Vertical balanced flue:
a) From 500mm to 4000mm straight flue.
b) From 500mm to 2500mm when two 45°
bends are required.
c) From 500mm to 2100mm when two 90° bends are required.
A 90° flue bend is equivalent to 1000mm of straight flue. A 45°
flue bend is to half a 90° bend.
Refer to Figs. 22 and 23 to determine whether extension kits,
90° flue bends, 45° flue bends, or adapters are required.
The maximum number of 90°
flue bends allowed is two, in
addition to the flue turret
The flue turret can be replaced by a flue bend with no reduction
in flue length.
Flue components
1. Adapter, boiler to turret.
2. Adapter, item 1 to vertical flue.
3. Flue Turret.
4. Standard air duct.
5. Standard flue duct.
6. Restrictor rings, 4 off (Fan inlet).
7. Flue terminal.
8. Extension air duct.
9. Extension flue duct.
10. In-line flue elbows (45° and 90°).
IMPORTANT:
To ensure the correct operation of the appliance a restrictor
ring must be fitted to the fan inlet, where applicable, to suit the
flue configuration used.
Refer to table 9 for relation of restrictor ring / flue length.
The flue must be installed as specified in BS 5440 Part 1.
NOTE: READ THIS SECTION FULLY BEFORE COMMENCING
INSTALLATION.
1. Horizontal
a) Without Elbows
b) With 1 x 90° or 2 x 45° elbows
c) With 2 x 90° elbows
2. Vertical
a) Without Elbows
b) With 2 x 45° elbows
c) With 2 x 90° elbows
Table 9
Length (mm)
Restrictor
250 - 1000
52
1001 - 2000
54
2001 - 3000
60
3001 - 4000
-
Length (mm)
Restrictor
250 - 500
54
501 - 1500
60
1501 - 2500
-
Length (mm)
Restrictor
250 - 1000
-
Length (mm)
Restrictor
500 - 1000
50
1001 - 2000
52
2001 - 3000
60
3001 - 4000
-
Length (mm)
Restrictor
500 - 1500
60
1501 - 2500
-
Length (mm)
Restrictor
500 - 2100
-
Fig. 11
Содержание 47 311 43
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Страница 30: ...30 19 Functional Flow Diagrams ...
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