2
GENERAL BOILER INFORMATION
8
Fig. 1
Terminal position
Min. distance
A
Directly below an opening, air brick, window, etc.
300 mm
B
Below gutters, soil pipes or drain pipes
75 mm
C
Below eaves
200 mm
D
Below balconies or car port roof
200 mm
E
From a vertical drain pipe or soil pipe
75 mm
F
From an internal or external corner
300 mm
G
Above ground, roof or balcony level
300 mm
H
From a surface facing the terminal
600 mm
I
From a terminal facing the terminal
1200 mm
J
From an opening in the car port (e.g. door, window) into dwelling
1200 mm
K
Vertically from a terminal on the same wall
1500 mm
L
Horizontally from a terminal on the same wall
300 mm
M
Horizontally from a door, window or air vent
150 mm
2.8
BOILER LOCATION
1 The boiler is not suitable for external installation.
2 The boiler must stand firm and level on a sufficiently robust floor to take the weight of it- see Technical
Information, page 3.
3 If the boiler is to be installed in a timber framed building, refer to the British Gas publication 'Guide for
Gas Installation in Timber Framed Housing' reference DM2.
4 Installation may be in any room, although particular attention is drawn to the requirements of the current
IEE Wiring Regulations and, in Scotland, the electrical provision of the Building Regulations applicable in
Scotland, with respect to the installation of a boiler in a room containing a bath or shower.
Where a room sealed boiler is installed in a room containing a bath or shower, it must not be possible for
a person entering or using the bath or shower to touch any electrical switch or boiler control using mains
electricity.
5 The boiler may be installed in a cupboard or compartment to be used for airing clothes, provided it is
correctly designed and ventilated for that purpose and that the requirements of BS 6798 and BS 5440:2
are complied with.
It is important that the boiler is separated from the airing space by a suitable non-combustible rigid mesh,
refer to BS 6798:1987.
No combustible surface must be within 75 mm of the boiler case, this includes any cupboard door.
The clearances required for servicing, as given in the Technical Information section on page 3, also apply
to a cupboard installation.
Summary of Contents for RIO 140
Page 33: ...10 WIRING DIAGRAMS 33 10 1 ILLUSTRATED WIRING DIAGRAM ...
Page 34: ...10 WIRING DIAGRAMS 34 10 2 FUNCTIONAL FLOW WIRING DIAGRAM ...
Page 35: ...11 SEQUENCE OF OPERATION CHARTS 35 11 1 AUTOMATIC IGNITION SEQUENCE ...
Page 36: ...11 SEQUENCE OF OPERATION CHARTS 36 11 2 OPERATION IN CENTRAL HEATING MODE ...
Page 37: ...11 SEQUENCE OF OPERATION CHARTS 37 11 3 OPERATION IN DOMESTIC HOT WATER MODE ...
Page 47: ...NOTE 47 ...
Page 54: ...6 ELECTRONIC TIMER Description of controls see Figs 3 and 4 ...
