Ideal Boilers Mexico Slimline RS 3/40, Руководство по установке и обслуживанию, Страница: 7 / 40

7
Mexico Slimline RS 3/40 & 3/50 -
Installation
GENERAL
A gas meter can only be connected by the local gas supplier or
by a local regional contractor.
Check that the appliance is suitable for the proposed gas
supply. An existing meter should be checked, preferably by the
gas supplier, to ensure that the meter is adequate to deal with
the rate of gas supply required. A
minimum gas pressure of
20 mbar MUST be available at the boiler inlet, with the boiler
operating.
Installation pipes MUST be fitted in accordance with BS. 6891.
Pipework from the meter to the boiler MUST be of an adequate
size. Do not use pipes of a smaller size than the boiler gas
connection.
The complete installation MUST be tested for gas soundness
and purged as described in the above code.
FLUE INSTALLATION
Some pluming may occur at the termination, so terminal
positions where this could cause a nuisance should be avoided.
The flue must be installed in accordance with the
recommendations of BS. 5440:1.
The following notes are intended for general guidance:-
1. The boiler MUST be installed so that the terminal is
exposed to external air.
2. It is important that the position of the terminal allows the
free passage of air across it at all times.
Table 3 - Balanced flue terminal position
Terminal Position Minimum Spacing
1. Directly below an opening window,
air vent or other ventilation opening
300 mm (12")
2. Below guttering *, drain pipes or soil
pipes
300 mm (12")
3 . Below eaves * 300 mm (12")
4. Below balconies or a car port roof 600 mm (24")
5. From vertical drain pipes or soil pipes 75 mm ( 3")
6. From internal or external corners 600 mm (24")
7. Above adjacent ground, roof or
balcony level
300 mm (12")
8. From a surface facing the terminal 600 mm (24")
9. From a terminal facing a terminal 600 mm (24")
10. From an opening in a car port
(e.g. door or window) into dwelling
1200 mm (48")
11. Vertically from a terminal on the
same wall
1500 mm (60")
12. Horizontally from a terminal on the wall 300 mm (12")
Tower Flue Components Ltd.,
Vale Rise, Tonbridge, Kent TN9 1TB
Telephone No. 01732 351 555
Ensure that the guard is fitted centrally
5. Where the terminal is fitted within 1000mm (39
1/2
") of a
plastic or painted gutter or 500mm (19 1/2") of painted
eaves then an aluminium shield at least 1000mm (39
1/2
")
long should be fitted to the underside of the gutter or
painted surface.
6. The air inlet/products outlet duct and the terminal of the
boiler MUST NOT be closer than 30mm (2") to combustible
material. Detailed recommendations on the protection of
combustible material are given in BS.5440: 1.
Table 4 - High and low vent areas
Boiler Air from room/internal Air direct from
space cm
2
(in.
2
) outside cm
2
(in.
2
)
High level Low level High level Low level
RS 3/40 140 (22) 140 (22) 70 (11) 70 (11)
RS 3/50 190 (30) 190 (30) 95 (15) 95 (15)
IMPORTANT. It is absolutely ESSENTIAL to ensure, in practice,
that products of combustion discharging from the terminal
cannot re-enter the building or any other adjacent building
through ventilators, windows, doors, other sources of natural air
infiltration or forced ventilation/air conditioning. If this should
occur, the appliance MUST be turned OFF, labelled 'unsafe'
and corrective action taken.
TERMINAL
The terminal assembly can be adapted to accommodate
various wall thicknesses. Refer to Frame 9.
AIR SUPPLY
Detailed recommendations for air supply are given in
BS.5440:2. The following notes are for general guidance:
1. It is NOT necessary to have a purpose provided air vent in
the room or internal space in which the boiler is installed.
2. If the boiler is to be installed in a cupboard or compartment,
permanent air vents are required (for cooling purposes) in
the cupboard/compartment, at both high and low levels. The
air vents must either communicate with room/internal space,
or be direct to outside air. The minimum effective areas of
the permanent air vents, required in the cupboard/
compartment, are specified in Table 4 and are related to
maximum rated heat input.
3. Both air vents MUST communicate with the same room or
internal space or MUST be on the same wall to outside air.
4. In siting the air vents care must be taken to avoid the
freezing of pipework.
3. Minimum acceptable spacing from the terminal to
obstructions and ventilation openings are specified in
Table 3.
4. Where the lowest part of the terminal is fitted less than 2m
(6' 6") above a balcony, above ground or above a flat roof
to which people have access then the terminal MUST be
protected by a purpose designed guard.
Terminals guards are available from boiler suppliers - ask for
Tower Flue Guard, Model K1. In case of difficulty seek advice
from:
WATER CIRCULATION SYSTEM
The boiler must NOT be used for direct hot water supply.
The following indirect open vented systems are suitable:
z Combined gravity domestic hot water (DHW) and pumped
central heating (CH)
z Combined pumped gravity domestic hot water and pumped
central heating.
z Pumped central heating only.
z Gravity domestic hot water only, up to a minimum domestic
hot water cylinder storage capacity of 180 litres (40 gal.)