Warm Air Heaters

TC-DF High efficiency warm air heaters with down air flow outlet

Type
Hot
Supply
Gas
Oil
Thermal
power
from 190,0
to 590,0
Air flow
from 12.500
to 36.000

High-efficiency heater TC series "down-flow" vertical version, gas or oil-fired, providing heating of air destined to treat mainly greenhouse structures, with a ducting system where it is required
diffusion through an air distribution system on the ground.

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Product informations

Description

The appliance essentially consists of by an insulated containment casing, combustion chamber made of AISI 430 stainless steel, heat exchanger made of AISI 430 stainless steel with a flattened tubular section and turbulator imprints that optimise heat exchange.
The unit, when connected to main ducts with secondary branches, allows localised heating at the base of the plants, with significant energy savings. The centrifugal fan with variable ratio transmission makes the unit suitable for installation in plants where high static pressures are required. The generator is complete with electrical command and control equipment and a specially shaped plenum for connection to ducts.
On request, all models are available in the construction version for operation with two-stage or flame modulation burners for supply air temperature control. This also allows maximum overall system efficiency.

Construction characteristics

  • Cabinet - consists of a steel sheet supporting structure, with detachable closing panels internally lined with radiation-proof heat insulation and finely epoxy-painted.
  • Fan group - includes one or more centrifugal double intake fans, statically and dynamically balanced, driven through a variable gear transmission by an electric motor complete with belt tightner.
  • Electric equipment - for automatic or manual fan control and for the emergency stopping of the burner in case of air overheating. Inclusive of electric switchboard and FAN-LIMIT double thermostat.

High-efficiency heat exchanger

  • Combustion chamber - made of AISI 430 18% chromium INOX stainless steel, flame-inversion model with low thermal load, cylindrical or ellipsoidal, perfectly cooled in all of its points.
  • Exchange elements - made of AISI 430 18% chromium INOX stainless steel plate exhaust flues, flat tubular sections, with swirl impressions for maximum thermal efficiency.
  • Exhaust manifold - front and rear, made of AISI 430 18% chromium INOX stainless steel, with wide inspection doors for rational and easy cleaning.
Technical features

Description

U.M.

Model

TC-DF 190

TC-DF 255

TC-DF 390

TC-DF 590

Max nominal heating capacity input (burned)

kW

190,0

258,8

391,0

590,0

kcal/h

163.400

222.568

336.260

507.400

Max USEFUL heating capacity output

kW

168,2

230,3

347,6

523,2

kcal/h

144.652

198.058

298.936

449.952

Nominal air flow

Nm3/h

12.500

16.000

23.500

36.000

Useful static pressure

Pa

150

150

150

150

Dimensions

Model

Dimensions mm

Chimney Ø mm

Weight Kg

Weight (with package) Kg

A

B

C

D

E

TC-DF 190

1.300

900

2.120

1.000

3.120

200

535

555

TC-DF 255

1.500

1.000

2.120

1.000

3.120

250

625

650

TC-DF 390

1.700

1.200

2.350

1.320

3.670

250

835

865

TC-DF 590

2.090

1.270

2.870

1.370

4.240

350

1370

1400

Supply description

WARM AIR HEATER consisting of:

  • Heat exchanger with three smokes rounds, complete with combustion chamber and smoke pipes made of AISI 430 stainless steel, inspection doors, chimney connection and burner mounting plate.
  • External casing in pre-painted galvanized steel with thermal insulation.
  • Fan section with one or two centrifugal fans, complete with electric motor(s) and variable belt transmission.
  • Electrical board for control and protection of the warm air heater designed for 400V 50Hz 3N three phase electrical motor, complete with FAN-LIMIT double-thermostat (n° 1 with manual reset and n° 1 with automatic reset) for TC-DF 190/255/390 models or with FAN-LIMIT double-thermostat (n° 1 with manual reset and n° 1 with automatic reset) and a safety FLOW SWITCH for insufficient air flow control for TC-DF 590 model.
  • Bottom air outlet plenum with two circular duct panels for the connection of the polyethylene sleeve.
  • Support frame.
  • For oil burner version: single stage forced draught oil burner complete with electric device, nozzle and flexible pipes.
  • For gas burner version: single stage forced draught gas burner complete with electric device and gas train.

NOTES:
• The gas trains for burners are designed to work with normal supply pressure (20 mbar for natural gas and 30 mbar for LPG).
• The burners are supplied equipped with safety/control devices and usual supply accessories foreseen by the supplier.
• The burners are supplied disassembled and in separate packages. They have to be mounted, connected and set on site by the customer.

DELIVERY: Ex works our factory.

PACKAGE: Warm air heaters are wrapped in plastic film and pallet-loaded. Accessories are protected in cardboard or plastic film.

Accessories
Electronic room thermostat - Tecnoclima spa

Electronic room thermostat with LCD digital display.

Pipe - Tecnoclima spa

Accessories for the exhaust discharge:
Pipe

T terminal in stainless steel - Tecnoclima spa

Accessories for the exhaust discharge:
T terminal in stainless steel

90° elbow  - Tecnoclima spa

Accessories for the exhaust discharge:
90° elbow
made of stainless steel complete with seal.

Rain cap - Tecnoclima spa

Accessories for the exhaust discharge:
Rain cap

Cover crossing set - Tecnoclima spa

Accessories for the exhaust discharge:
Cover crossing set
made of galvanized steel.

Pipe clamp - Tecnoclima spa

Pipe clamp to fix the junctions of the exhaust pipes.

Gasket - Tecnoclima spa

Gasket for the junctions of the exhaust pipes.

Enrichment system with carbon dioxide - Tecnoclima spa

Enrichment system with carbon dioxide allows the enrichment in the greenhouse with CO2 produced by the combustion, only during the unit functioning. It is composed by a regulator, a detector, and a diverting device with motorized damper to be installed on the smoke exhaust.

Applications
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  1. HIgh efficiency agricultural warm air heaters with axial fan

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  2. High efficiency agricultural warm air heaters down flow with downwards air outlet

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    AIR FLOW
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  3. High efficiency horizontal warm air heaters with side air flow outlet

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