Bộ điều khiển nhiệt độ phòng Siemens RDF302 | Flush-mount room thermostat
Modbus 2-/4-pipe fan coils or DX type
Flush-mount room thermostat for rectangular conduit box with Modbus communications, 2-/4-pipe fan coils or DX type equipment
- Modbus communications
- For heating and/or cooling applications
- 2 or 3-position control outputs
- Output for 1-speed or 3-speed fan
- 2 multifunctional inputs for keycard contact, external room / return air temperature (QAH11.1, QAA32), heat / cool changeover, operation mode changeover, window contact on/off, dewpoint monitor, electrical heater enabled, fault contact
- Operating modes: Comfort, Economy and Protection
- Automatic or manual heating/cooling changeover
- Adjustable commissioning and control parameters
- Minimum and maximum setpoint limitation
- Color of housing: signal white (RAL 9003)
- Backlit display
Có thể lựa chọn cho những ứng dụng sau/ Application selectable:
- 2-pipe system
- 2-pipe system with electrical heater
- 4-pipe system
Technical Specifications
Operating voltage:
AC 230 V
Power consumption
7 VA
Setpoint setting range
5…40 °C
Switching differential
0.5…6 K
Communication
Bus: Modbus RTU (RS 485)
Analog inputs, number
2
Relay outputs
Fan: Normally open contact , Valve: Normally open contact , Non floating
Relay outputs, number
5
Relay output, switching voltage
230 V
Relay output, switching current
5 (2) A
Type of fixing
Recessed rectangular conduit box BS4662 with fixing centres of 60.3 mm
Degree of protection
IP30
Dimensions (W x H x D)
86 x 86 x 57 mm
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