Glow-worm 12 hxi G.C.No. 41-019-01, Installation And Servicing, Page: 13 / 48

0020107233_00 - 06/11 - Glow-worm
INSTALLATION
- 13 -
4.2.3 Multiple boiler chimney flue
Ø 60/100 mm (C43 type installation)
The flue connecting from the appliance to
the flue system must be supplied from the
manufacturer of the boiler.
C43 flue systems must not be a 'pressurised
system' but act under natural draught
principles
C43 type flue systems must have their
own condensate drain fitted and not allow
condensate to mix into other appliances
Multiple boiler Chimney flue length
The flue length must be calculated and installed according to
the relevant standards EN 13384-1 and 2 (C43 flue systems
only) with reference to the table below and the manufacturers
instructions supplied.
The appliance maximum flue length must be included when
calculating the overall design of the flue system.
noTe: The horizontal flue terminal must be removed.
MoDel Ultracom
12hxi
Ultracom
15hxi
Ultracom
18hxi
Ultracom
24hxi
Ultracom
30hxi
Ultracom
38hxi
exhaust mass rate (g/s)
At Min Thermal
Load (40C°/30°C)
2.30 2.30 2.30 2.45 2.45 3.10
At Max Thermal
Load (80C°/60°C)
5.65 7.10 8.75 11.30 13.25 18.30
exhaust temperature (ºC)
At Min Thermal
Load (40C°/30°C)
56.0 56.0 56.0 44.0 44.0 46.0
At Max Thermal
Load (80C°/60°C)
69.0 70.0 69.0 66.0 57.0 73.0
L
B
A
1
2
3
4
5
Key
1 Pressure balancing system
2 air-inlet pipe
3 Collector pipe
4 boiler
5 Inspection hatch
a final storey
b Ground floor
Type Max length (l)
Ø 60/100 10 m
Each time an additional 90° bend is necessary (or 2 at 45°),
the length (L) must be reduced by 1 m.