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FCR-BOX regulator function:
= inlet terminal for 24 V DC supply voltage
+24V and 0V
+U
and SGND
= terminal for 0–10 V DC fan controlling voltage
c
VALVE
= terminal for thermoelectric actuator controlling voltage
24 V DC = heating, 0 V DC = cooling
= fan cables terminal
FAN
= NTC termperatrute sensor terminal. Where the sensor is not connected, the fans will not get blocked.
TS
jumper pin J1
= thermoelectric actuators connected to terminal Valve Heat and Valve Cool terminals will automaticaly switch ON
if a control voltage of 0–10 V DC for fans appears
jumper pin J2
= independent thermoelectric actuator control for 4-pipe heating or cooling system
VALVE terminal voltage = 0 V DC = cooling, VALVE terminal voltage 24 V DC = heating
without jumper
= VALVE terminal voltage = 24 V DC or 0 V DC = Valve Heat and Valve Cool switched ON
Indicators:
Heat/Cool (red on)
Heat/Cool (green on)
Heat/Cool (both red and green on)
TEP 24 THERMOELECTRIC ACTUATOR – optional accessory
Connection:
- to Valve Heat = 2-pipe system (heating OR cooling)
- to Valve Heat and Valve Cool = 4-pipe system (heating AND cooling independently), jumper on J2 pin
• IP protection: IP 44
• re-setting time: 4 min
• total height 65 mm
• standard assembly thread M 30×15
• cable length 2,5 a 5 m
• closed without voltage
• supply voltage 24 V DC
• input power consumption <2 W
TEMPERATURE SENSOR – optional accessory
Temperature sensor is positioned on the exchanger and blocks
the fan operation untill the water temperature exceeds 37 °C
in the heating mode and drops under 15 °C in the cooling mode.
• to be connected into the TS terminal in the FCR-BOX regulator
• for 4-pipe F4V trench heater model we recommend 2 temperature sensors - one for each circuit
• NTC sensor, 10 kΩ at 25 °C
• cable length 0,3 m
Pwr (green)
= 24 V DC supply voltage connected
= Valve Heat is ON (jumper is on J2 pin)
= Valve Cool is ON (jumper on J2 pin)
= Valve Heat and Valve Cool is ON (jumper on pin J1)
= fan revolutions are just being re-set
Diag
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