IDEAL Concord Super Series 4 50 V, Установка и обслуживание

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6 Concord Super Series 4 -
Installation & Servicing
LOCATION
The floor must be flat, level, and capable of supporting the
weight of the WET boiler pipework. In addition concrete
floors must be sealed. The siting of the boiler must be in
accordance with the guidance given in BS. 6644 and with
reference to minimum boiler-house clearances. Refer to
Frames 1 & 2.
CONNECTION GAS SUPPLY
The gas installation MUST be in accordance with the
requirements of the local gas region (refer also IM/16).
The gas supply must be capable of maintaining a minimum
pressure of 15.0 mbar (6 in.w.g.) at the inlet to the boiler, with
all modules firing. Gas consumption is given in Tables 1 & 2.
The boiler are for use with NATURAL GAS ONLY.
FLUE REQUIREMENTS
Open flue, induced draught and fan diluted systems may be
used but must comply with the following basic requirements:
1. A draught diverter MUST NOT be fitted.
2. A draught stabiliser MUST be fitted to all types of flue
systems within 1 metre of the flue outlet and set to
control the draught in the casing between neutral and 0.2
mbar (0.08 in. wg.) irrespective of flue height or number
of modules firing. Refer to Frames 3 and 4 for further
guidance.
3. ALL flue systems must be insulated and/or lined and
impervious to acid condensate. Prefabricated chimneys
must have a ‘U’ value of no greater than 1.4 W/m
2
ºC at
540ºC (0.25 Btu/h ft.
2
ºF at 1000ºF.)
4. Drainage and must be provided at the base of the
chimney or liner. All boiler casings are fitted with a
condensate drain point - refer to Frame 14.
5. For fan diluted or induced draught systems, air flow/
pressure switches MUST be fitted to protect against fan
failure. Switches should be set to open if the air flow
reduces by more than 15%.
6. Flue products must not be allowed to enter the boiler
house or adjacent buildings.
7.
Refer also to BS. 6644 and to IGE UP/10 Installation of
Gas Appliances in Industrial and Commercial Premises
and IM/22 for further guidance.
AIR SUPPLY
Detailed recommendations for air supply are given in BS
5440:2 and BS. 6644 which MUST be consulted before
proceeding.
Contamination of the air supply from any external source
must be avoided, with particular reference to dust, insulation
debris and flue products. Concrete floors must be sealed. If
any work is to be carried out in the boiler house which is likely
to generate dust (e.g. structural alterations or the lagging of
pipework) it is recommended that the boiler is shut down and
the modules covered with a dust sheet, otherwise the boiler
will require cleaning and servicing.
1.
In particular, the contamination of the air supply with
chlorides must be avoided as they will cause the
deterioration of the aluminium fan impellor.
2. The boiler-house requires ventilation openings at BOTH
high and low levels, direct from the outside. Allowances
MUST be made for stabiliser dilution in all cases.
3. Mechanically forced ventilation systems must include
provision for boiler shut down in the event of a fan failure.
4.
High speed air streams within the boiler house must be
avoided.
5. Extraction mounted ventilation fans alone are NOT
permitted.
6. The minimum effective areas of the permanent air vents
direct from the outside by natural ventilation are as
follows:
Required are (cm2) per kW of total rated input (net)
Boiler room Enclosure
Low level (inlet) 4 10
High level (outlet) 2 5
Note: Where a boiler installation is to operate in summer
months (e.g. DHW) additional ventilation requirements
are stated, if operating for more than 50% of time (refer to
BS6644).
1 RECOMMENDED BOILER-HOUSE
CLEARANCES 50 - 300KW
2 RECOMMENDED BOILER-HOUSE
CLEARANCES 350 - 600KW
All dimensions in millimetres (inches) All dimensions in millimetres (inches)
GENERAL