BENSON VRC-3 100-3, Инструкция по установке, обслуживанию и эксплуатации

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1704VRC3-AMEN, p 17/35
IMPORTANT: The flue must be installed in accordance with national and local regulations. Failure to
provide proper flueing could result in death, serious injury and/or property damage. The air heater
must be installed with a flue to the outside of the building. Safe operation of any power vented gas
apparatus requires a properly operating flue system, correct provision for combustion air, and regular
maintenance and inspection.
3.3.1 Flues for power vented installations (Type B appliances)
If the air heater is to be installed as a type B appliance, air for combustion will be taken from within the
space where the heater is installed. Ensure that an adequate air supply for combustion and ventilation is
provided within the building in accordance with the regulations & rules in force.
Table 5 shows flue pipe sizes and maximum pipe
lengths. The minimum flue length is 0.5 metres.
Single wall flue pipes are required. All joints
must be sealed to prevent products of
combustion from leaking into the building. An
approved flue terminal is required.
If the flue passes through a combustible
element of the building it must be enclosed by a
sleeve of non ‐ combustible material and
separated from the sleeve by at least a 25 mm
air break.
Table 5 : Flue pipe diameters & maximum lengths
The temperature of any combustible material near to the flue must not exceed 65°C when the heater is in
operation. The flue must be at least 50 mm away from any combustible material. Single wall flue pipe
exposed to cold air or run through unheated areas must be insulated. Where condensation is
unavoidable, provision must be made for the condensation to flow freely to a point to which it can be
released, i.e. a drain or gully. The condensation drain from the flue must be constructed from non ‐
corrodible material not less than 20 mm diameter. Copper or copper based alloys must not be used for
condensation drains.
3.3.2 Combustion air inlet pipe & flue pipe for balanced flue installation (Type C appliances)
Balanced flue air heaters are designed to be fitted with a combustion air inlet pipe that obtains outdoor
air and a flue pipe that exhausts flue products to outdoors.
Air heaters if fitted with a power venter permitting either a vertical or horizontal combustion air
inlet/flue pipe system. The heaters must be installed with a concentric vertical or horizontal
flue/combustion air inlet. The heaters are only approved for use when installed with the appropriate
approved concentric vent terminal. See table 6.
Both the flue and combustion air pipes must be sealed. Use gasket sealed seamless aluminum pipe or
equivalent.
The flue pipe must include a re ‐ sealable test port to allow good average sampling of the flue gas mixture
for testing, the port must be at least 450 mm away from the air heater flue connection socket.
Follow any flue pipe manufacturers’ installation instructions for making joints, including connections to
the air heater, for passing through a building element and for support requirements. If more than one air
heater is being installed in the same place each heater must have a separate flue system.
Where condensation is unavoidable, provision must be made for the condensation to flow freely to a
point to which it can be released, i.e. a drain or gully. The condensation drain from the flue must be
constructed from non ‐ corrodible material not less than 20 mm diameter. Copper or copper based alloys
must not be used for condensation drains.
VRC-3 other sizes
Heater socket & mm
pipe dia
Maximum straight m
length
Equivalent length m
of 45° elbow
Equivalent length m
of 90° elbow
9
0.75
1.5
20 & 30
100
130