6. WATER SUPPLY AND SEWERAGE.
4.6.1. To the place of installation of the heat generator must
be provided for the input of a water supply system for supplying water to the hot water circuit
water supply and a device is provided for filling the heating system and its
make-up.
4.6.2. To account for water consumption at each input
water supply to the apartment should provide for the installation of a meter.
4.6.3. In front of the water meters at the water supply inlet to
residential building and each apartment should be provided with the installation
mechanical filter.
If the quality does not match
tap water to the requirements of the manufacturer's instructions
heat generators or GOST
21563 should provide for the installation of portable anti-scale
devices.
4.6.4. Drainage from safety
valves and heat generators should be provided in the sewer.
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2. Gas supply
5.2.1.
The design of the internal gas supply system of apartments should be carried out in
in accordance with the requirements of SNiP 2.04.08-87*, the Safety Rules in the gas industry, the Rules for the use of gas in the national economy and these TSN.
5.2.2.
The system of internal gas supply of an apartment or a heat generator
must be calculated for the maximum hourly gas flow, depending on
installed gas equipment.
5.2.3.
The technical characteristics of the boilers must ensure stable operation
equipment at the gas pressure specified in the Specifications on
connection to the gas network, issued by the gas supply organization.
Connection of a gasified building to gas networks of high (medium)
pressure should be provided through the gas control point (GRP).
5.2.4.
The supply gas pipeline of low pressure to a residential building must be equipped with
input with installation on it at a height of not more than 1.8 m from the ground
disconnecting device with insulating flange. In case of placement of a disconnecting
devices with an insulating flange in the GRP or in a cabinet
regulatory clause (SHRP) they should not be
provide at the entrance of the gas pipeline to gasified premises.
5.2.5.
For internal gas pipelines, steel pipes are allowed in
in accordance with SNiP
2.04.08-87*. It is allowed to provide for the connection of boilers to
gas pipelines after the disconnecting device on the branch using flexible
sleeves. The diameter of the gas pipeline leading to the boiler should be taken on the basis of
calculation, but not less than the diameter indicated in the boiler passport.
V
as flexible hoses it is allowed to use metal hoses,
resistant to the influence of the transported gas at
given temperature and pressure and having a certificate and permission of Gosgortekhnadzor
Russia for their application. The length of flexible hoses should be taken as the minimum necessary, but not more than 1.5 m.
5.2.6.
At the points of connection to the gas pipeline and equipment, flexible hoses must
to be put on fitting tips.
5.2.7.
When installing boilers in rooms that do not meet the requirements of GOST
Р 50571.3-94*, after
disconnecting device on the supply gas pipeline should be provided
insulating inserts. The role of insulating inserts can be performed by non-conductive flexible sleeves.
5.2.8.
Laying of gas pipelines before entering gasified premises should
carried out openly, in places convenient for maintenance, excluding
the possibility of damage, and provide access for regular inspection and
control. The gas pipeline must not cross ventilation grilles, window and
doorways.
5.2.9.
Laying gas pipelines in kitchens or heat generators
should be provided open. Hidden gasket
flexible hoses, as well as disconnecting devices, is prohibited.
5.2.10.
The gas pressure in front of the boilers should be taken in accordance with the passport
boiler data, but not more than 0.003 MPa.
5.2.11.
Each apartment should provide accounting for gas consumption by installing on
gas pipeline of a gas flow meter - a meter. Accounting for gas consumption should
carried out in the same way by every public organization,
consuming gas.
5.2.12.
Devices for measuring gas consumption should be placed in gasified premises, in
which boilers and other gas-consuming equipment are installed
equipment.
5.2.13.
The placement of meters should be provided outside the heat zone.
and moisture release, based on the conditions of their convenience
installation, maintenance and repair in accordance with the requirements of passports for
counters.
5.2.14.
Detachable connections of gas pipelines are allowed to be provided only within
piping for gas equipment.
5.2.15.
The laying of gas pipelines should be provided with a slope of at least 3%. bias
gas pipeline should be provided from the meter.
2. SPACE-PLANNING AND DESIGN REQUIREMENTS.
4.2.1. Apartment heating systems
it is allowed to provide in residential buildings belonging to I, II degrees of fire resistance.
4.2.2. The installation of heat generators is allowed
provide for the total heat output (kW):
- up to 60 kW - in kitchens;
– up to 100 kW – in special
allocated non-residential premises of apartments or public premises
(hereinafter - heat generator).
4.2.3.
The kitchen and heat generating rooms must meet the following requirements:
- height not less than 2.2 m;
- internal volume,
determined on the basis of the conditions for the convenience of installation work and
operation of heat generators, but not less than that specified in the operational
manufacturer's documentation;
- ventilation in accordance with
the requirements of these standards;
- for the kitchen area, except
In addition, the presence of a window, the design of which provides ventilation of the room.
4.2.4. Heat generating room for public
appointment, in addition to the requirements specified in paragraph , must have:
- enclosing structures
fire resistance limit not less than: for walls and ceilings REI45 and for partitions EI45;
- as easy
discarded enclosing structures - external window openings with an area
glazing at the rate of 0.03 m2 per 1 m3 of the volume of the room;
- emergency exit
in accordance with the requirements of paragraphs. a) paragraph 6.9 of SNiP
21-01;
- protection from
unauthorized entry into the premises.
4.2.5. Fire protection of premises should be
provide in accordance with the requirements of SNiP
21-01, SNiP
2.08.01, SNiP
2.08.02 and other regulatory documents.
4.2.6. Installation of heat generators in rooms
should be provided in accordance with the passports, installation instructions and
operation of manufacturers.
In addition, it should
provide for:
a) on non-combustible walls
materials at a distance of at least 2 cm from the wall;
b) on walls with cladding made of
combustible materials insulated with non-combustible materials (roofing steel according to
asbestos sheet at least 0.3 cm thick, plaster at least 2.5 cm thick and
etc.) at a distance of at least 3 cm from the wall. The insulation must be
dimensions of the heat generator body by 10 cm;
2) installation of floor
heat generators:
a) at the walls of non-combustible
materials, as well as at walls made of combustible materials, insulated with non-combustible
the materials specified in paragraphs. b) point
for wall-mounted heat generators at a distance of at least 10 cm from them;
b) on floors with non-combustible
coatings, as well as combustible coatings insulated with non-combustible materials.
The floor insulation must extend beyond the dimensions of the heat generator housing by 10 cm.
3) distance from speakers
parts of the heat generator in places where people can pass should be out of the light
less than 1 m in the kitchen and not less than 0.8 m in the heat generating room;
4) horizontal distance
in the light between the protruding parts of the heat generator and the gas stove should be taken
at least 10 cm.
1 Requirements for heat generators
4.1.1 For apartment heating systems residential
buildings, automated gas-fired heat generators should be used
with hermetic (closed) combustion chambers (type "C") complete factory
readiness that meets the following requirements:
the total heat output of the heat generators is not
must exceed 100 kW when placed in heat generators and 35 kW - when
placement in kitchens;
Efficiency not less than 89%;
coolant temperature not more than 95 °С;
coolant pressure up to 1.0 MPa;
emission of harmful emissions: CO - traces, NOX - not
more than 30 ppm (60 mg/m3).
4.1.2 Heat generators are allowed for use,
the automatic safety of which ensures the fuel supply is cut off when:
· interruption of power supply;
failure of protection circuits;
Extinguishing of the burner flame;
drop in coolant pressure below the limit
allowed values;
Reaching the maximum allowable temperature
coolant;
Violation of smoke removal;
Exceeding the maximum permissible gas pressure
values.
4.1.3 Heat generators must have permits and
certification documents required by the legislation of the Russian Federation.
4.1.4 The following heat generators are allowed to be used:
double-circuit with a built-in hot water circuit;
single-circuit (without built-in hot
water supply) with the possibility of connecting a capacitive water-to-water
hot water heater.
4.1.5 Heat output of heat generators for
apartment heating systems of residential apartments is determined by the maximum
load of hot water supply depending on the number of installed
sanitary appliances or design heating load.
Heat output of heat generators for
built-in public premises is determined by the maximum
design load of heating and average design load of hot
water supply.
4.1.6 When reconstructing heat supply systems
existing housing stock associated with the transition to apartment
heat supply, in buildings up to 5 floors inclusive, it is also recommended
provide for the installation of heat generators with a closed combustion chamber.
4.1.7 The heat generator must be supplied complete with
details of chimneys and air ducts within the room where the heat generator is installed,
as well as with instructions for installation and operation, in which the manufacturer
all necessary security measures are outlined.
