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Location
Description
A
Directly below an opening, air brick, opening windows etc.
B
Above an opening, air brick, opening windows etc.
C
Horizontally to an opening, air brick, opening windows etc.
D
Below a gutter or sanitary pipework
E
Below the eaves
F
Below a balcony or car port roof
G
From a vertical drain or soil pipe
H
From an internal or external corner
I
Above ground, roof or balcony level
J
From a surface facing the terminal
K
From a terminal facing the terminal
L
From an opening in the car port (e.g. door, window) into the dwelling
M
Vertically from a terminal on the same wall
N
Horizontally from a terminal on the same wall
P
From a vertical structure on the roof
Q
Above intersection with the roof
*
Any termination of a room sealed appliance shall be in such a position as will not cause a hazard to the health of persons who
may be nearby or a nuisance to other persons beyond the curtilage. The height to the centreline of the terminal shall not be
less than 2m from occupied external areas.
Detailed recommendations for the flue system are given in BS5440-1 for equipment of rated input not exceeding 70kW net,
BS6644 for equipment above 70kW net and IGE/UP/10 for equipment of rated input above 54kW net. The following notes are
intended to give general guidance only.
8.2 APPROVED FLUE SYSTEM
The approved flue system is not suitable for use external to the building. If external routes cannot be avoided, a flue
system manufacturer should be consulted to supply a suitable alternative.
CP-M+60 – CP-M+120 boilers are supplied for connection to a concentric flue system. If twin pipe or conventional flue is
used, a conversion kit will be required. Contact Lochinvar Limited for further details.
CP-M+150 & CP-M+180 boilers are supplied for connection to a twin pipe or conventional flue system. If concentric flue
is to be used, a conversion kit will be required. Contact Lochinvar Limited for further details.
When used as a Type C (Balanced Flued) appliance, the approved, purpose designed adaptive flue system should be used.
Concentric and twin-pipe options are available, for further details please contact Lochinvar Limited.
When used as a Type B (Conventional Flued) appliance, a suitable flue system constructed of Stainless Steel or Polypropylene
with a temperature rating in excess of 120C should be used. Aluminium flue pipe must not be used on this appliance as it
may lead to a premature failure of the heat exchanger that would not be covered by the warranty.
Flue kits are supplied separately, please contact Lochinvar Limited for further details.
8.2.1
TYPE B
23P
The CP-M+ boiler is suitable for use on B
required flue diameter. For overpressure flue gas systems the minimum requirements of the flue gas material for can be
determined in a designation string according to the EN1443 (see table).
European
CE string flue gas
Standard
material (B
)
23P
Min. Requirement PPs EN 14471
Min. Requirement St S EN 1856-1
TABLE 8.1
FLUE TERMINAL MINIMUM DISTANCES
FLUE GAS SYSTEMS
flue gas systems; this allows the flue to run under a positive pressure reducing the
23P
Temperature
Pressure
Resistance
Class
Class
to
Condensate
T120
P1
W
T120
P1
W
TABLE 8.2
TYPE
Corrosion
Metal:
Resistance
Class
Liner
Specifications
1
1
L20040
FLUE MATERIAL REQUIREMENTS
B23P
CP-M+60
CP-M+80 – CP-M+180
300
2000
300
1000
300
1000
75
75
200
200
200
200
150
150
300
300
300
300*
600
1000
1200
2000
1200
1200
1500
1500
300
600
300
300
300
300
Soot Fire
Distance to
Plastics:
Resistance
Combustible
Class
Material
Location
O
30
I or E
O
40
Plastics:
Plastics:
Fire
Enclosure
Behaviour
C/E
L
25
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