Siemens Building Technology 357-0004 Stat
The Siemens 357-0004 Limitem is a heavy-duty, gradual-direct acting pneumatic thermostat designed for precision air temperature control in demanding commercial HVAC air handling units. This liquid-filled averaging bulb thermostat features a 15-foot sensing element and a 40-foot capillary tube, providing extensive reach for monitoring across large duct cross-sections. Engineered for reliability as a low limit control or primary controller, it operates within a 35°F to 145°F range with adjustable sensitivity (1/3 to 2-1/4 psi/°F) to match specific system dynamics. The two-valve design is a critical feature for technicians, as it eliminates air waste during steady-state operation. With a 0.5°F temperature response and a maximum 30 psi supply pressure, this pneumatic temperature limit stat ensures stable signal output proportional to the sensed temperature, making it a standard choice for HVAC retrofit and replacement projects.
Key Benefits:- Extensive Sensing Reach: Features a 15-foot averaging bulb and 40-foot capillary for accurate temperature detection in large-scale air handlers.
- Efficient Pneumatic Operation: The two-valve design prevents unnecessary air consumption, reducing the load on the control air system.
- Adjustable Control Parameters: Technicians can fine-tune sensitivity settings to prevent hunting and ensure precise temperature limiting.
- Rapid Thermal Response: The liquid-filled sensing element reacts to a 0.5°F change, providing immediate direct-acting pneumatic feedback.
- Robust Field Integration: Includes a mounting bracket and 1/8-inch NPT connections for standard installation in commercial pneumatic control loops.
Is the Siemens 357-0004 suitable for mixed-air low limit applications?
Yes, the 15-foot averaging bulb is specifically designed to sense the average temperature across a duct, making it ideal for freeze protection and low-limit monitoring in mixed-air sections.
What air supply pressure is required for this Limitem thermostat?
This unit is designed for pneumatic HVAC systems and requires a clean, dry, oil-free supply air pressure of up to 30 psi, typically calibrated at 18 to 25 psi.
How do you adjust the sensitivity on this pneumatic controller?
The sensitivity is adjusted by moving the sensitivity spring to the appropriate slot inside the housing, allowing for a range between 1/3 and 2-1/4 psi per degree Fahrenheit.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $570.38
-65%$570.38
$199.63Siemens Building Technology 357-0004 Stat
The Siemens 357-0004 Limitem is a heavy-duty, gradual-direct acting pneumatic thermostat designed for precision air temperature control in demanding commercial HVAC air handling units. This liquid-filled averaging bulb thermostat features a 15-foot sensing element and a 40-foot capillary tube, providing extensive reach for monitoring across large duct cross-sections. Engineered for reliability as a low limit control or primary controller, it operates within a 35°F to 145°F range with adjustable sensitivity (1/3 to 2-1/4 psi/°F) to match specific system dynamics. The two-valve design is a critical feature for technicians, as it eliminates air waste during steady-state operation. With a 0.5°F temperature response and a maximum 30 psi supply pressure, this pneumatic temperature limit stat ensures stable signal output proportional to the sensed temperature, making it a standard choice for HVAC retrofit and replacement projects.
Key Benefits:- Extensive Sensing Reach: Features a 15-foot averaging bulb and 40-foot capillary for accurate temperature detection in large-scale air handlers.
- Efficient Pneumatic Operation: The two-valve design prevents unnecessary air consumption, reducing the load on the control air system.
- Adjustable Control Parameters: Technicians can fine-tune sensitivity settings to prevent hunting and ensure precise temperature limiting.
- Rapid Thermal Response: The liquid-filled sensing element reacts to a 0.5°F change, providing immediate direct-acting pneumatic feedback.
- Robust Field Integration: Includes a mounting bracket and 1/8-inch NPT connections for standard installation in commercial pneumatic control loops.
Is the Siemens 357-0004 suitable for mixed-air low limit applications?
Yes, the 15-foot averaging bulb is specifically designed to sense the average temperature across a duct, making it ideal for freeze protection and low-limit monitoring in mixed-air sections.
What air supply pressure is required for this Limitem thermostat?
This unit is designed for pneumatic HVAC systems and requires a clean, dry, oil-free supply air pressure of up to 30 psi, typically calibrated at 18 to 25 psi.
How do you adjust the sensitivity on this pneumatic controller?
The sensitivity is adjusted by moving the sensitivity spring to the appropriate slot inside the housing, allowing for a range between 1/3 and 2-1/4 psi per degree Fahrenheit.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Siemens 357-0004 Limitem is a heavy-duty, gradual-direct acting pneumatic thermostat designed for precision air temperature control in demanding commercial HVAC air handling units. This liquid-filled averaging bulb thermostat features a 15-foot sensing element and a 40-foot capillary tube, providing extensive reach for monitoring across large duct cross-sections. Engineered for reliability as a low limit control or primary controller, it operates within a 35°F to 145°F range with adjustable sensitivity (1/3 to 2-1/4 psi/°F) to match specific system dynamics. The two-valve design is a critical feature for technicians, as it eliminates air waste during steady-state operation. With a 0.5°F temperature response and a maximum 30 psi supply pressure, this pneumatic temperature limit stat ensures stable signal output proportional to the sensed temperature, making it a standard choice for HVAC retrofit and replacement projects.
Key Benefits:- Extensive Sensing Reach: Features a 15-foot averaging bulb and 40-foot capillary for accurate temperature detection in large-scale air handlers.
- Efficient Pneumatic Operation: The two-valve design prevents unnecessary air consumption, reducing the load on the control air system.
- Adjustable Control Parameters: Technicians can fine-tune sensitivity settings to prevent hunting and ensure precise temperature limiting.
- Rapid Thermal Response: The liquid-filled sensing element reacts to a 0.5°F change, providing immediate direct-acting pneumatic feedback.
- Robust Field Integration: Includes a mounting bracket and 1/8-inch NPT connections for standard installation in commercial pneumatic control loops.
Is the Siemens 357-0004 suitable for mixed-air low limit applications?
Yes, the 15-foot averaging bulb is specifically designed to sense the average temperature across a duct, making it ideal for freeze protection and low-limit monitoring in mixed-air sections.
What air supply pressure is required for this Limitem thermostat?
This unit is designed for pneumatic HVAC systems and requires a clean, dry, oil-free supply air pressure of up to 30 psi, typically calibrated at 18 to 25 psi.
How do you adjust the sensitivity on this pneumatic controller?
The sensitivity is adjusted by moving the sensitivity spring to the appropriate slot inside the housing, allowing for a range between 1/3 and 2-1/4 psi per degree Fahrenheit.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
