Fantini Cosmi EV91A Handleiding

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EV91A - SLAVE

TEMPERATURE REGULATION MODULE

WITH OUTSIDE PROBE

temperature and the outside temperature. The re-

quired ambient temperature is set by the user through

a conguration menu shown on the MASTER EV90

display, and it may take on various values depending

on the selected program.

When the device recognis-es a program type, it cal-

culates the WATER DELIVERY TEMPERATURE

required to obtain the ambient temperature associa-

ted with the program. This is calculated through in-

terpolation by using the values set for water delivery

temperature for four outside temperature values

( 20°;10°; 0°;-10°).

This curve represents the water delivery temperature

values based on the external temperature required to

obtain an ambient temperature of 20°C.

For other ambient temperatures, the broken regula-

tion curve moves along the straight line “+Ta -Ta”.

The EV91A module works properly only when it is

connected through a two-wire serial bus (FANBUS)

to a Master device called MASTER EV90 which ar-

bitrates bus data and checks the conditions of all de-

vices connected to it.

The EV91A module receives from the MASTER con-

trol unit all information required to perform regulation

like: time, current date, etc.

USE

The EV91A module is suitable to be used on all types

of centralised heating plants like those installed in

housing estates, schools, hospitals, factories, etc.

Each setting may be controlled by a temperature

regulation module of the EV91A type for a maximum

of eight rooms.

The EV91A module enables to fully manage a mixing

valve, a circulation pump and an auxiliary output.

OPERATION

The EV91A is designed to obtain a certain AMBIENT

TEMPERATURE by measuring the water delivery

Product specificaties