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TCO-DF High efficiency horizontal space warm air heaters for special agricultural applications

High efficiency warm air heater TCO Down Flow series horizontal version with gas or diesel burner provides warm air to be supplied mainly to greenhouse structures, but also in all cases where diffusion through an air-to-ground distributing device is required.

HEATING

SUPPLY

gas
oil

HEATING CAPACITY

from 160
to 770

AIR FLOW RATE

from 10.600
to 50.000

Description

The equipment consist mainly of an isolated External casing receiving the air flow produced by the ventilator group. The External casing contains a high-efficiency INOX stainless steel heat exchanger which transfers the thermal power by means of direct exchange between combustion products and the air flow to be treated Such air is heated when passing onto the exchanger’s hot surface and it is then distributed to the premises.The warm air heater, if connected to main sleeves with secondary branch sleeves, allows the heating only the plant’s sensitive parts such as roots and leaves, thereby creating a kind of “drip heating” through an air-to-ground distributing device, granting a global energy saving. The centrifugal fan’s characteristics make the equipment suitable to be installed where air is to be distributed through pipings or – more generally – where high static pressure is required. The warm air heater is complete with electrical device for heater functions control and a particular flange (both outlet- and inletwise) allows equipment connection to the pipings. On request all the models are available for functioning with double stage or modulating burners for the total control of the greenhouse's temperature. This allows to reach the maximum global plant efficiency.

CONSTRUCTION CHARACTERISTICS

External casing - 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.

Heat exchanger: heart of the equipment.

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.

Dimensions

TCO-DF

Model	Overall dimensions mm					Chimney Ø mm	Weight Kg
Model	A	B	C	D	E	Chimney Ø mm	Weight Kg
TCO 160 DF	1.300	900	2.120	700	2.820	200	492
TCO 190 DF	1.300	900	2.120	700	2.820	200	517
TCO 225 DF	1.500	1.000	2.120	700	2.820	250	620
TCO 255 DF	1.500	1.000	2.120	700	2.820	250	625
TCO 320 DF	1.700	1.200	2.350	1.100	3.450	250	834
TCO 390 DF	1.700	1.200	2.350	1.100	3.450	250	874
TCO 460 DF	2.090	1.270	2.870	1.100	3.970	300	1.222
TCO 590 DF	2.090	1.270	2.870	1.100	3.970	300	1.312
TCO 645 DF	2.500	1.500	3.120	1.400	4.520	350	1.687
TCO 770 DF	2.500	1.500	3.120	1.400	4.520	350	1.812

Technical features

Model	Unit	TCO 160 DF	TCO 190 DF	TCO 225 DF	TCO 255 DF	TCO 320 DF	TCO 390 DF	TCO 460 DF	TCO 590 DF	TCO 645 DF	TCO 770 DF
Heating capacity input	kW	161,2	190,0	225,8	258,8	322,6	391,0	460,6	590,0	645,3	769,0
Heating capacity input	kcal/h	138.600	163.400	194.225	222.600	277.470	336.250	396.160	507.300	554.940	661.500
Heating capacity output	kW	145,3	168,2	203,5	230,3	290,7	347,6	415,0	523,2	581,4	682,9
Heating capacity output	kcal/h	125.000	144.600	175.000	198.100	250.000	298.950	356.900	450.000	500.000	587.400
Air flow rate	Nm³/h	10.600	12.500	14.500	16.000	21.000	23.500	31.000	36.000	42.000	50.000
Usefull static pressure	Pa	150	150	150	150	150	150	150	150	150	150
Electric motor	Kw	2,20	3,00	3,00	4,00	4,00	5,50	7,50	7,50	11,00	15,00
Circular outlet diameter	mm	600	600	600	600	900	900	900	900	1.200	1.200