The fitting of a "Trace Heating" Element is NOT a substitute for correct
installation of the condensate drain. ALL requirements in this section must
still be adhered to.
5.3.6
Clearances
A flat vertical area is required for the installation of the boiler and it should
be capable of bearing the weight of the boiler when full of water.
These dimensions include the necessary clearances around the boiler for
case removal, spanner access and air movement. Additional clearances
may be required for the passage of pipes around local obstructions such
as joists running parallel to the front face of the boiler.
A*
Clearance below — 200mm minimum, 250mm recommended
B*
Clearance in front — 450mm minimum, 1000mm recommended
5.3.7
Flue/chimney location
The following guidelines indicate the general requirements for siting
balanced flue terminals. For GB recommendations are given in BS 5440
Pt 1. For IE recommendations are given in the current edition of I.S. 813
Domestic Gas Installations.
Important
Due to the nature of the boiler a plume of water vapour will be
discharged from the flue. This should be taken into account when
siting the flue terminal.
Fig.19
Flue outlets
R
T
U
J,K
J,K
A
D
E
C
I
I
I
A
A
S
F
H
H
B
G
F
I
I
L
N
M
PN-0000456
1
1
Flue positions marked require a flue terminal guard.
Fig.18
Clearances
A*
5.0
6
B*
285
700
395
PN-0000503
5.0
183
5 Before installation
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