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Thermokon · Room controller · Modbus
LCF02 RS485 Modbus
Fan coil room thermostat with a large display and five buttons, for 2 pipe and 4 pipe units, with Modbus RTU.
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Part number703314
Datasheet, PDF
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- DHL, under 15 kg £13.50 ex VAT
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Specification
Communication
- Protocol
- Modbus RTU
- Interface
- RS485, plus 0 to 10 V and relay outputs
Electrical
- Power supply
- 24 V DC +/-10% or 24 V AC +/-20% SELV
- Power consumption
- 0.3 W typical at 24 V DC
Environment
- Operating temperature
- -10 to +50 °C
- Humidity
- Maximum 85% rH, non-condensing
- Protection
- IP20 IP rating
Performance
- Inputs
- 1 NTC10k external sensor, 1 window or dew point contact, 1 presence or key card contact
- Outputs
- Relays 3 A at 250 V AC (5 A on some); 2 or 3 x 0 to 10 V, minimum load 10 kOhm, by version
- Accuracy
- Temperature +/-1 K at 21 °C
Physical
- Housing material
- ABS
- Colour
- Pure white
- Dimensions
- 86 x 86 x 51 mm
- Mounting
- Standard 60 mm EU box, at least 45 mm deep
- Weight
- 160 g
From the manufacturer's datasheet for LCF02 RS485 Modbus.
Overview
The LCF02 controls fan coil units and modulating valves (PWM or 0 to 10 V), in 2 pipe or 4 pipe systems. It has five buttons, a 64 x 41 mm backlit display and a flush-mounted housing for a standard 60 mm EU box. Three output arrangements are on the price list: five relays, two 0 to 10 V outputs with three relays, or three 0 to 10 V outputs with two relays, so you can drive an EC fan or a six-way valve. Two inputs take occupancy, window, dew point or change-over contacts, and there is an input for a remote NTC10k. RS485 Modbus RTU lets a supervisor override the control parameters. Supply is 24 V.