Fantini Cosmi EV91B Handleiding


Lees hieronder de 📖 handleiding in het Nederlandse voor Fantini Cosmi EV91B (12 pagina's) in de categorie CV Ketel. Deze handleiding was nuttig voor 23 personen en werd door 2 gebruikers gemiddeld met 4.5 sterren beoordeeld

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1
FANTINI COSMI S.P.A. VIA DELL’OSIO 6
20090 CALEPPIO DI SETTALA (MI) ITALIA
Phone no. +39 02 95682.222 Fax no. +39 02 95307006
E-mail: export@fantinicosmi.it
Web: www.fantinicosmi.it
EV91B - SLAVE
SANITARY WATER
TEMPERATURE
REGULATION MODULE
OPERATION
The EV91B module works properly only when it is
connected through a two-wire serial bus (FANBUS)
to a Master device called MASTER EV90, otherwise
it will not work. The EV91B is an electronic device
designed for regulating the opening and closing of a
mixing valve according to the temperature required
and to the temperature read.
Regulation is carried out by a control unit of the
proportional-integrator type featuring proportional/in-
tegration constants that can be modied by the user
according to the type of plant and user’s habits.
The comparison between the water delivery tempera-
ture and the required reference temperature pinpoints
an error that denes the valve position on the basis
of the proportional band and the integration time. This
position is expressed in percentage: 0% indicates
that the valve has to move to fully close position and,
100% indicates that the valve has to move to fully
open position. The time the valve takes for passing
from full close to full open position is equal to the time
specied on the valve rating plate.
CIRCULATION PUMP
The circulation pump is switched on when the pro-
gram selected is “Always ON” or “Automatic” and
when within the programmed period.
USE
The EV91B module is suitable to be used on all types
of centralised sanitary water regulation plants.
This module is mainly used for regulating the tem-
perature of sanitary water, however it may also be
used for regulating generic temperatures of rooms,
greenhouses, swimming-pools, etc...
The EV91B is provided with a special program for
thermal sterilization of the system to prevent the risk
of Legionellosis (legionnaires’ disease).
2
PROGRAMMING
In the Automatic programming mode the user can set
daily programming with three on/off time bands.
THERMAL STERILIZATION
The EV91B module features a special sterilization
function to prevent the risk of Legionellosis (infectious
disease also known as legionnaires’ disease). This
function enables to program the sterilization tempera-
ture (which must obviously be higher than the normal
water temperature), the day, the cycle length and also
the starting and ending times. To exclude this function
cancel either time or both.
You are recommended to program sterilization at
night when there is less use of hot water, thereby
preventing the risk of burns due to high water tem-
perature.
N.B.: If deciding to use this program it is compulsory
to adopt suitable heat protections for the involved wa-
ter delivering devices in order to stop water delivery
over a set temperature or to mix automatically the
water of the different delivering devices in order to
protect users from scalds. Water temperature over 50
°C can cause burns in a few seconds.
ADJUSTMENT
The output of the control unit that varies from 0%
to 100% is compared with valve position (also ex-
pressed in percentage) and if the comparison is posi-
tive the valve is triggered to open, otherwise it is trig-
gered to close.
If the percentage error is falling between a certain
programmable value the valve remains still.
DESIGN CHARACTERISTICS
6-module DIN container; removable terminal boards
facilitate replacement.
ValveOpens
command
indication
ValveCloses
command
indication
Pump com-
mand
indication
Auxiliary
command
indication
Indication of
data reception
through BUS
Indication of
data transmission
through BUS
BUTTON to reset
factory settings
3
EXAMPLE OF SANITARY WATER TEMPERATURE
REGULATION PLANT
INSTALLATION
INSTALLING THE CONTROL UNIT
Mount the device onto the DIN rail inside a panel in
order to provide suitable protection. Removable ter-
minal boards facilitate wiring and replacement.
Connecting leads to the control unit must have a sec-
tion of at least 1 mm2 and a length of 1000 metres.
.
INSTALLING THE DELIVERY PROBE EC15-EC16
Install the water delivery temperature probe EC15
onto the water pipe with the clamp provided for the
purpose and with heat conducting paste interposed in
order to guarantee correct heat conduction.
The immersion probe EC16 must be tted in the el-
bow provided in the piping.
NB: The control unit also works with probes: EC82
(contact probe) and EC83 (immersion probe)
CONNECTION TO THE FANBUS
Connect the EV91B control unit to the Master EV90
through the FANBUS. Bear in mind that the bus has
low voltage and it is not polarised, terminals can
therefore be inverted with each other without causing
malfunction.
CONTROL UNIT ADDRESS
The control units must be addressed through the
terminal board to work properly. The address of the
EV91B unit is made up of a high part that corresponds
to number “4”, and a low part that may take on a
value between “0” and “7”. The MASTER unit starts a
progressive search of SLAVES EV91B from address
“40” and it will stop if it gets no reply. It is therefore
necessary that connected slaves have different con-
secutive addresses starting from address “40”.
The diagrams below show how to set the low part of
the address through terminal board ‘A’ :
BOILER
PROBE
SANITARY WATER
BOILER
RETURN PROBE
2-STAGE
BURNER
ANTENNA
MODEM EV90
(00)
BOILER
FANBUS EV91B
(40)


Product specificaties

Merk: Fantini Cosmi
Categorie: CV Ketel
Model: EV91B

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