Bticino 3550 Informações Técnicas descarregar pdf (Página 35)

260

MY HOME

WIRING DIAGRAMS

Energy management

4 zone villa

DIAGRAM DESCRIPTION

This diagram represents an example

of a heating and cooling system

made with Climaveneta unit and

Combination boiler.

By means of the TiThermo software

the 99 zone control unit item 3550

can be programmed to use the

reading of the outside temperature

from the Climaveneta system to

manage systems with combination

boilers.

Depending on the outside

temperature the control unit

activates the most suitable and

convenient heating system

depending on the heat yield.

During the spring and autumn

rooms can be heated using the heat

generated by the Chiller. This heat is

however not suf cient in the winter

when a Combination boiler, generally

supplied by gas, must be used.

The MY HOME temperature control

system switches between the

two sources of heat, using the

outside temperature as parameter

to discriminate between spring

and autumn and winter.Actuator

F430/2 manages the switching ON

or OFF of the Boiler and changes

the valve state, while the Gateway

manages the Climaveneta Chiller.In

the example given here the Chiller

continues to work as long as the

outside temperature (measured

by the Climaveneta outside

probe) remains higher than a set

threshold value; below this value the

Combination boiler starts to work.

Using TiThermo set the Outside

Temperature (OT) value below which

the Boiler starts to work: for example

set 5°C.

When OT is higher than 5°C the

Chiller manages the system.When

OT is lower than 5°C the following

actions take place: Chiller OFF, Boiler

ON and valve open towards the

Boiler.

The Boiler continues to work until

OT rises above a value higher than

5°C. This selection is made to avoid

device state oscillation phenomena.

If for example 7°C is set as threshold

value, when OT is higher than 7°C the

following actions take place: Chiller

TiThermo: example of an application window, indispensable for programming

and setting the temperature thresholds and the automations.

ON, Boiler OFF, valve open towards

the Chiller.To sum up, the Chiller

continues to work until the OT drops

below 5°C; at this point the Boiler

starts to work.

It will stay on until the OT rises above

7°C, when the Chiller switches on

again.

NOTE: for the TiThermo software setting details

consult the documentation supplied with the product

itself.

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