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DESCRIPTION OF THE HEATER
The warm air heater with fuel oil burner is a device that heats ambient air using thermal energy produced by
combustion.
An airflow produced by a centrifugal fan is in contact with the heat exchanger wall, so heat is exchanged with no
intermediate fluid. The combustion products, after losing heat, are expelled. This system allows considerable reduction
of installation and operating costs, and is particularly well suited to applications where use of the heater is intermittent
or occasional. During the summer, the heater can also provide ventilation only.
GENERAL CONSTRUCTION FEATURES
The most important parts of the heater are:
•
Combustion chamber
with flame inversion in stainless steel type AISI 430 resistant to high temperatures, with low
thermal loading, of appropriate shape and volume.
•
Tube bundle
with oval section fire tubes and turbulence imprints to offer maximum heat efficiency.
•
Flue collector
at the rear.
•
Plenum
for direct air diffusion with horizontal guide vanes, each separately adjustable, on four sides.
•
Outer casing
consisting of removable panels in painted steel sheet.
•
Heat insulation,
anti-radiation, for the surfaces exposed to radiation from the heat exchanger.
•
Centrifugal fan,
high performance, with double air intake and low sound emission level.
The electrical system
comprises:
Double thermostat Fan-Limit
adjusted and electrically connected to offer the following functions:
•
Function “FAN” (25-35°C)
, controls the fan start up approximately 60 seconds after ignition of the burner,
and stops the fan at approximately four minutes after the burner stops. This avoids the emission of cold air on
start-up, and allows the accumulated heat in the heat exchanger to be removed, guaranteeing complete
recovery before stopping.
•
Function “LIMIT” (100°C)
, with Manual reset, stops burner operation if the air is overheated.
•
Three way switch
to allow heating, ventilation only in summer, and plant stoppage.
Type 1÷4
1.
Distribution plenum
2.
Air delivery
3.
Inspection doors
4.
Burner plate
5.
Air inlet
6.
Flame inspection
7.
Double thermostat FAN – LIMIT
8.
Chimney connection
9.
Combustion chamber
10.
Electric centrifugal fan
11.
Control panel
12.
Casing
13.
Front fluegas collector
14.
Fire tubes
15.
Rear fluegas collector
16.
Adjustable vanes
6
Содержание BG 110
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