Fantini Cosmi EV91A Handleiding
Fantini Cosmi
CV Ketel
EV91A
Lees hieronder de đź“– handleiding in het Nederlandse voor Fantini Cosmi EV91A (16 pagina's) in de categorie CV Ketel. Deze handleiding was nuttig voor 39 personen en werd door 2 gebruikers gemiddeld met 4.5 sterren beoordeeld
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1
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 conîšżguration 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
2
DESIGN CHARACTERISTICS
6-module DIN container; removable terminal boards
facilitate replacement.
OUTPUT RELAYS
The four output relays have the following functions:
Circulation pump command
Valve opening command
Valve closing command
Auxiliary command
CIRCULATION PUMP (If îšżtted).
It is activated to circulate water inside the heating
plant and it is turned off when the water delivery tem-
perature calculated by the control unit falls below the
minimum value set by the user.
MIXING VALVE
The mixing valve is opened/closed by the two rele-
vant relays to allow the water delivery temperature to
reach the temperature value calculated by the control
unit.
AUXILIARY OUTPUT
The auxiliary relay just follows the operating mode.
More particularly, the relay is closed when the ope-
rating mode is “DAYTIME”, “FORCED” or “TEMPO-
RARY”. In all other cases it is opened.
OPERATING PROGRAMMES
The unit works with different programmes selectable
by the user.
- Valve Opens
ValveOpens
command
indication
ValveCloses
command
indication
Indication of
data transmission
through BUS
Indication of
data reception
through BUS
Auxiliary command
indication BUTTON to reset
factory settings
Pump command
indication
Water Delivery T.
External T.
3
The circulation pump is started and the mixing valve
is opened manually.
- Valve Closes
The circulation pump is shut down and the mixing
valve is closed manually.
- Antifreeze
The ANTIFREEZE temperature set for calculating the
water delivery temperature is used.
- Nighttime
The NIGHTTIME temperature set for calculating the
water delivery temperature is used.
- Daytime
The DAYTIME temperature set for calculating the wa-
ter delivery temperature is used.
- Automatic
The ambient temperature to be used for calculating
the water delivery temperature is selected according
to the programming done.
HEATING
When in the Automatic operating mode, during the
heating period set, the control unit will calculate the
water delivery temperature based on Daytime, Night-
time, Antifreeze, Reduced ambient temperatures set
in Set Temperature.
TEMPORARY PROGRAM
Four temporary programs are available, each pro-
gram being associated with the desired ambient tem-
perature, with the switch-on time (starting month and
ending month) and with the possibility of overriding
them. When in the Automatic operating mode, during
temporary periods, the heating period requirements
speciîšżed above are ignored and the ambient tempe-
rature required by this programming is set.
OPERATING MODES
Operating modes are selected automatically by the
control unit according to the program selected and
they determine pump operation and system condi-
tion.
- DAYTIME MODE
It is obtained by setting the DAYTIME program or the
AUTOMATIC program. If the automatic program is
set, the following conditions must be observed:
- The current day must be within the heating period
set.
- The current time must be within the periods set in
the time programming menu.
The circulation pump keeps running except when the
water delivery temperature read falls below the mini-
mum temperature set.
- NIGHTTIME MODE
It is obtained by setting the NIGHTTIME program or
the AUTOMATIC program. If the automatic program
is set, the following conditions must be observed:
Product specificaties
| Merk: | Fantini Cosmi |
| Categorie: | CV Ketel |
| Model: | EV91A |
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