TC line

The flexibility of the program permits a total adaptation at the system to be verified in order to operate in perfect way the different system's components.
The feature common to all products shown in this catalogue is the stepping speed regulation for fans using the transformer system, which ensures high power unit reliability and optimal fan adjustment.
We have been fitting this regulation system for over ten years and, in the light of tens of thousands of applications world-wide in a whole variety of conditions, we can safely confirm the excellent reliability of the power unit (transformers/contactors) and optimal control of the electrical and mechanical parameters of the motor / fan.
HC45 and HC46 microcomputer command modules of this product's line realize an intelligent command of the unit, operating with an easy and simply way, with a complete regulation of parameters that permits to obtain a perfect actioning of the speed controller personalizing it to the unit to control.
Particularly attention has been paid to the regulator housing; models are supplied in a twin-compartment metal box, the top part containing the power transformers is finned (IP22) and the lower part containing the microcomputer control module and electrical components is sealed (IP54).
This ensures a good regulation reliability even in difficult environmental conditions such as farming.
All products can mount optional circuit breakers for each fan, flap drive unit, cooling pump drive unit, and temperature alarm output with buffer battery so that the equipment has on board all the electrical parts to activate the system.
On the TC/46 models the program stores data about working times of heating, minimum and maximum external temperatures with setting times of the last 99 days, minimum and maximum environment temperatures with setting times of the last 99 days, the intervent state of the last performed alarm.
If there is an anomaly on the connection's circuit of the temperature probes and on the others sensor (humidity probe, etc.) , it is immediately signaled.
The connection of temperature's probes and other possible external sensors (flap answer's potentiometer, humidity sensor, etc.) doesn't require any screened cables or divided ways from the power's line; this condition permits to obtain an easy and cheap connection.
The settings and the statement of the time are kept in memory also if there is a power failure for more than 10 years; no-one external interference can interrupt or change program's working.
The programming is facilitated with the ideograms on the keys or with the messages on the display: to make the programming easier the software shows only function's setting that are selected.
The output of the alarm can be connected to the modules for the alarm management information system (see our catalogue "Plants components").
All TC line products are supplied with a complete HC3A module, that permits to hand operate all the actioning that are controlled by the computer module.

Available models

*1) If two IP values are given (e.g. 55-22) the container is the twin-compartment type. IP22 for the top part containing the power transformers, IP54 for the lower part containing the control module and electric drive unit. The upper part can be to IP54 if option 54 is mounted.

*2) Specify motor absorption to mount the magnetothermal switch with the correct rating.

*3) On automatic switches (overload protection) with protection of each single fan (VL) an additional contact can be mounted that shows the action of automatic switch. This actioning can be seen with the exit of general alarm.

*4) MR1 option: command relays of flap 1 actioning are enclosed in HC46 module, so this option has the only power part of flap 1 (contactors and automatic switch).
MR2 option: comes equipped with power part of flap 2 and HR24, HRY5 and HAD8 command's slot, that are requested for flap 2 command.
MR3 option: flap 3 actioning command is included in MR2 option, so this option has the only power part of flap 3.

*5) Amperometer control for ventilation minimum amperometric absorption. If a unit is working with flap, it is possible with HAD8 slot to obtain an immediate opening of the flap by minimum amperometric absorption fans and maximum environment temperature function.

*6) Contactor to insert the auxiliary ventilation (only for TC/46).
Specify number and fans power of main ventilation and of auxiliary ventilator.
For example if there are 6 fans to action, and 2 of these for main ventilation and 4 for auxiliary ventilation, specify with the order: Main N.2 + Auxiliary N.4.
The actioning will operate in this way: first the 2 main fans will be set at 5 speed till to maximum speed and then, if it is requested by environmental temperature, the 4 auxiliary fans will start to work together with the main 2; all this will restart at a lower speed (for example the speed 2) and going on with the actioning till to maximum speed af all fans (changing from 3 and 4 speed).
The contactor of auxiliary ventilation is controlled by Cool relay of HC46 module, that in this case doesn't work anymore at control function of cooling unit. It is possible to control the cooling unit mounting HR24+HRY5 option (see *13).

*7) PT Feedback potentiometer option. (only for TC/46 models).
Potentiometer 1 Kohm max 10 revolutions in an IP20 plastic box, completed with a flexible cable to connect on the shaft of the window.

*8) SX Optional temperature probe (only for TC/46).
TC/46 models are dotated with two temperature probes (one for environment, one for external); if another connection of more temperature's probe is required, these latest have to be ordered separately.

*9) With EBAT options a buffer exit of alarm is obtained at 12V d.c. max 1,1Ah (when there is a temperature alarm or for black-out).

*10) On-Off heating control.

*11) Electronic humidity probe: required HA20s power pack.

*12) Radiant heating connection.
When this slot is connected it is not possible to connect HR24 and HDA8 slot. It can be mounted only on TC/46 models.

*13) Psycrometric kit

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	command modules
HC46	Characteristics	HC45
Yes	On/Off Heating control	Yes
Yes	Modulating/proportional Heating control	No
Yes	Possibility of Heating single probe connection	No
Yes (till to 3)	Flap control	No
Yes	Possibility of Flap single probe connection (one for each flap)	No
5 (extensible to 10)	N° of steps ventilation control	5
Yes	Auxiliary ventilation control	No
Yes	Cooling control	Yes
Yes	Connection of humidity probe	No
Yes	Temperature alarm	Yes
Yes	External temperature control	No
Yes	2 directions anemometer connection	No
Yes	Daily curves calendar	No
Yes	Latest 99 days recording	No
2	Dotated temperature probes	1