The electronic frost protection unit FV1/D is mainly intended for use in air handling systems. If the temperature falls below the setpoint, the relays will fall and an alarm LED lights up. The unit should be connected to a Regin NTC sensor placed on the heating coil or return water pipe. FV1/D has two alarm relays and manual or automatic reset. The sensor must have 0…30°C temperature range, suitable sensors are TG-A130 and TG-B130 from Regin.
When there is frost risk, FV1/D has a 0…10 V DC control output that can be used to override the valve.
| Power consumption | 2 VA |
| Setpoint | 0…15°C |
| P-band, control signal override | 5 K (fixed) |
| Supply voltage | 24 V AC |
| Sensor inputs | One, 0…30°C (NTC sensor) |
| Control signal | 0…10 V DC (from the controller) |
| Relays | 24 V AC, 1 A, change-over and 230 V AC, 1 A, breaking contact |
| Protection class | IP20 |
| Mounting | DIN-rail |
| Number of modules | 3 |
| Output signal | 0…10 V DC |
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| FV1-D |
Delivered without sensor
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