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Attractive design ,Shiny Button, easyinstallation and operation
Different painting colors housing isavailable (Optional, there is MOQ)
LCD display with 3 optional backlightcolors
Selectable Heating/Cooling/VentilatingMode
High/Medium/Low/Auto Fan Speed, or SingleFan Speed,
Single stage or Multi stage with On/off,Floating, P&I Modulating and Network controls
Compatible between 2-wire and 3-wiremotorized valve in single stage system
EEPROM capacity
Infrared Remote Control Function(Optional)
RS-485 or Modbus protocol (Optional)
Key-card contact (Optional)
| Back Light |
White ( Defaulted), Green or Blue color |
| Temp. Display | Celsius (Defaulted), or Fahrenheit |
| Working Mode | On/off, Floating,Modulating or Multi-functions |
| Sensor | Internal or external |
| Usage | FCU System, or AHU System, etc. |
| Programmability | Non-programmable &Programmable (5+1+1 days, 5+2 days) |
| Network | RS-485, or M-Bus |
| Mounting box | Chinese standard/European standard |
| Power Supply |
24 Vac~220 Vac + 10%, 50/60Hz |
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| Consumption | 3(1)A | Room Temp Range | 0℃~50℃ |
| Set Temp Range | 5℃~40℃ | WorkAmbient | -10-60℃ |
| RelativeHumidity | 95%RH | Accuracy |
± 1℃ |
| Control Accuracy | ±0.5℃ | Housing | ABS+PC fire-resistant |
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Model# |
Application |
Fan Speed |
Customized Functions |
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Single Stage( Heating or Cooling only) |
Multi-Stage (Heating and Cooling, 2xCooling etc.) |
2-wire Motorized Valve |
3-wire Motorized Valve |
Damper(3 x On/ off Speed Fan, or Modulating) |
PI(0~10 2-10vdc |
H |
M |
L |
Auto |
Timer -T |
Key-card-K |
Network RS-485 Modbus -N |
IR Control -R |
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RL303S |
√ |
|
√ |
√ |
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√ |
√ |
√ |
√ |
O |
O |
O |
O |
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RL303M |
|
√ |
√ |
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√ |
√ |
√ |
√ |
O |
O |
O |
O |
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RL303D |
|
|
|
|
√ |
O |
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|
|
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RL303SP |
√ |
|
√ |
|
|
√ |
√ |
√ |
√ |
√ |
O |
O |
O |
O |
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RL303MP |
|
√ |
√ |
|
|
√ |
√ |
√ |
√ |
√ |
O |
O |
O |
O |
√-Yes The function is available
O-Optional The function is customized
Single stage-2-pipe
Multi Stage-4Pipe or multi stages
