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FAQs - Frequently Asked Questions
FAQs - Frequently Asked Questions
- Regular price
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RAB11 Description:
Siemens presents the RAB11 Room Thermostat series, engineered to provide precision climate control in both heating and cooling systems. These room thermostats are ideal for a variety of settings, including commercial buildings, residential spaces, and light industrial facilities. With intuitive manual controls and a 3-speed fan switch, the RAB11 series ensures you maintain the desired room temperature effortlessly.
Key Features:
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Dual-Mode Functionality: The RAB11 series room thermostats offer the flexibility to switch between heating and cooling modes, allowing you to maintain your ideal indoor environment throughout the year.
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Fan Speed Control: Experience customizable comfort with the manual 3-speed fan switch, allowing you to set the fan speed according to your preferences.
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Wide Voltage Range: With a switching voltage range of AC 24 to 250 V, the RAB11 room thermostats are compatible with a wide range of HVAC systems.
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ON/OFF Control: The control output operates on an ON/OFF basis, ensuring efficient and reliable climate control.
Applications:
The Siemens RAB11 Room Thermostat series is suitable for various applications, including:
- Commercial Buildings: Achieve precise climate control in offices, retail spaces, and public areas.
- Residential Buildings: Create a comfortable and consistent indoor environment in homes and apartments.
- Light Industrial Buildings: Optimize the climate in small industrial facilities for improved productivity and comfort.
Functionality:
The RAB11 room thermostats function based on a 2-position control principle, ensuring your room temperature remains within the desired range. Here's how it works:
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If the room temperature falls below the selected setpoint, the thermostat's heating contact will close, activating the heating system.
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Conversely, if the room temperature exceeds the chosen setpoint, the thermostat's cooling contact will close, initiating the cooling system.
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Fan speed control can be managed manually using the 3-speed fan switch for continuous operation. This feature is available in both the RAB11 and RAB11.1 models.
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The RAB11.1 model includes an additional ventilation function. When this function is selected with the slide switch on the unit front, the heating and cooling contacts remain open, allowing the fan to operate at the chosen speed. The heating or cooling mode is selected using the switch located on the unit front.
The Siemens RAB11 Room Thermostat series offers convenient, precise, and versatile climate control solutions for various settings. Enjoy the perfect indoor environment, whether it's for work, leisure, or relaxation, with Siemens' commitment to quality and innovation.
RAB21 Description:
Siemens presents the RAB21 Room Thermostat series, a cutting-edge solution designed for precise climate control in heating and cooling systems. These thermostats are perfect for a wide range of applications, including commercial and residential buildings, as well as light industrial facilities. With intuitive manual controls and an external automatic aquastat for changeover functionality, the RAB21 series ensures you can maintain your preferred room temperature with ease.
Key Features:
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Dual-Mode Functionality: The RAB21 series room thermostats can seamlessly switch between heating and cooling modes, offering you year-round climate control tailored to your needs.
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Fan Speed Control: Enjoy personalized comfort with the manual three-speed fan switch, enabling you to adjust the fan speed according to your preferences.
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Wide Voltage Range: These thermostats are compatible with various HVAC systems thanks to their switching voltage range of AC 24 to 250 V.
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ON/OFF Control: The control output operates on an ON/OFF basis, ensuring effective and dependable climate control.
Applications:
The Siemens RAB21 Room Thermostat series is suitable for a multitude of applications, including:
- Commercial Buildings: Achieve precise climate control in offices, retail spaces, and public areas.
- Residential Buildings: Create a comfortable and consistent indoor environment in homes and apartments.
- Light Industrial Buildings: Optimize the climate in small industrial facilities for enhanced productivity and comfort.
Functionality:
The RAB21 room thermostats function based on a two-position control principle to maintain your desired room temperature:
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If the room temperature falls below the selected setpoint, the thermostat's heating contact will close, activating the heating system.
-
Conversely, if the room temperature exceeds the chosen setpoint, the thermostat's cooling contact will close, initiating the cooling system.
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Fan speed control can be managed manually using the three-speed fan switch for continuous operation.
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For controlled operation, the thermostat provides the option to switch to the selected fan speed automatically. However, before commissioning, it is essential to select the jumper positions corresponding to these functions. There are three jumper positions available on the printed circuit board:
- SR1: Select fan speed for continuous operation.
- SR2: Automatically switch the fan with the cooling valve.
- SR3: Automatically switch the fan with the heating valve.
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In the case of the RAB21.1 model, when the ventilation function is selected using the slide switch on the front cover, both the heating and cooling contacts remain open, allowing the fan to operate at the selected speed. Heating or cooling can also be externally selected using an aquastat if required.
The Siemens RAB21 Room Thermostat series offers precise, versatile climate control solutions for various settings. Experience ultimate comfort and ensure a consistently pleasant indoor environment with Siemens' commitment to excellence and innovation.
RAB31 Description:
Experience unparalleled comfort and climate control with Siemens' RAB31 Room Thermostats, designed for use in heating or cooling systems. Ideal for a wide range of settings, from commercial and residential buildings to light industrial facilities, these thermostats offer efficient and reliable temperature regulation. Whether you need heating or cooling, these thermostats provide precise control for both, making them a versatile choice for your HVAC needs.
Key Features:
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Heating and Cooling Capability: The RAB31 series of room thermostats are equipped with manual switches that allow you to easily toggle between heating and cooling modes to suit your comfort needs.
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Fan Speed Control: Enjoy tailored comfort with the manual three-speed fan switch, giving you the flexibility to adjust the fan speed as desired.
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Wide Voltage Range: These thermostats are compatible with a variety of HVAC systems, accommodating a switching voltage range of AC 24 to 250 V.
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ON/OFF Control: The control output operates on an ON/OFF basis, ensuring effective and dependable climate control.
Applications:
Siemens RAB31 Room Thermostats are suitable for various applications, including:
- Commercial Buildings: Achieve precise climate control in offices, retail spaces, and public areas.
- Residential Buildings: Create a comfortable and consistent indoor environment in homes and apartments.
- Light Industrial Buildings: Optimize the climate in small industrial facilities for enhanced productivity and comfort.
Functionality:
The RAB31 Room Thermostats offer two-position control to help you maintain your desired room temperature effectively:
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When the room temperature falls below the selected setpoint, the thermostat's heating contact will close, initiating the heating system.
-
Conversely, when the room temperature exceeds the chosen setpoint, the thermostat's cooling contact will close, activating the cooling system.
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The fan speed can be controlled in two ways:
a) Manual adjustment via the three-speed fan switch on the thermostat for continuous operation.
b) Automatic selection of fan speed through the thermostat for controlled operation. Prior to commissioning, you can select the appropriate jumper positions corresponding to the thermostat's function. There are two choices of jumper positions available on the printed circuit board:
- SR1: Select the fan speed for continuous operation.
- SR2: Automatically switch the fan to the selected speed.
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In the RAB31.1 model, when you select the ventilation function on the cover by setting the slide switch, both the heating and cooling contacts remain open, and the fan operates at the chosen speed.
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Heating or cooling mode can be selected using the switch located on the front of the thermostat for maximum convenience and flexibility.
Part Numbers:
RAB11 Room Thermostat Fan Coil 2-Pipe H/C AC 250V Setpoint Adj. 3 Speed Fan (S55700-T225)
RAB21 Room Thermostat Fan Coil 2-Pipe H/C AC 250V Setpoint Adj. Auto C/Over 3 Speed Fan (S55770-T227)
RAB31 Room Thermostat Fan Coil 4-Pipe H/C AC 250V Setpoint Adj. Manual C/Over 3 Speed Fan (S55770-T229)
RAB31.1 Room Thermostat Fan Coil 4-Pipe H/C AC 250V Setpoint Adj. Manual C/Over 3 Speed FanVent. Sw (S55770-T230)
