Innova Filomuro SLW 400, Installation And User Manual, Page: 21 / 44

21
INSTALLATION
Connection with 3 speed thermostats
The CV input is the ON/OFF of the board:
• in case of opened input the PCB is placed in stand-by
• in case of closed input the PCB is in operation
To active the electrovalve Y1 the CV input must be bridged to
clamp L of the 230 V electic power supply.
To activate the fan, connect the V1, V2, V3, V4 inputs to clamp
L of the 230 V electric power supply. The inputs control the
ventilation speed:
• V1 - maximum fan speed (equal to 1400 rpm)
• V2 - medium fan speed (equal to 1100 rpm)
• V3 - minimum fan speed (equal to 680 rpm)
• V4 - supersilent speed (equal to 400 rpm)
Connect the 3 speeds of the thermostat to three of the four
available inputs based on the characteristics and use of the
location. Examples:
• residential application where maximum silence is re-
quired, connect V2, V3 e V4
• commercial application where the heating capacity is the
main aspect, connect V1, V2 and V3
In the event of simultaneous closure of several inputs, the
motor will run at a number of revolutions equal to that set by
the connection with the highest speed.
You can connect several boards in parallel to a single thermo-
stat, even using different speed.
Water probe
In case of connection with electromechanical thermostats or
commercial commands provided with water probe:
• the on-board H2 probe will not be connected
• the device will be controlled from the remote command
If this is not the case, connect the 10 kΩ probe located inside
the battery to the H2 connector on the PCB.
The printed circuit board works in:
• minimum water temperature for heating function (<30 °C)
• maximum water temperature for cooling function (>20
°C)
In case of temperature not suitable for active operation:
• the ventilation stops
• error is indicated by the flashing of the LED on the PCB
The Heating/Cooling discriminant is implemented through
the EST/IN input of the board:
• with input open the boards goes into Heating mode
• with input closed the board goes in Cooling mode
It is possible to use the device without the water probe acti-
vated. In this case the error is signaled on led.
To confirm operation without the probe:
– disconnect and connect the board power
This condition is stored by the board for all subsequent start-
ups. Connect the probe to restore the normal functions.
Error signals
LED signals
–
LED off
The CV contact is open, stand-by condition
–
LED on
The CV contact is closed, normal operation
–
LED 1 flash / pause
Water temperature probe H2 alarm not suitable, temporary stop of the ventilation until the temperature reaches an appropriate
value
–
LED 2 flashes / pause
Motor alarm (for example jamming due to foreign bodies or fault in the rotation sensor)
–
LED 3 flashes / pause
Water probe alarm disconnected or faulty