Siemens Building Technology 188-0030 Thermostat
The Siemens 188-0030 is a heavy-duty unit-mounted pneumatic thermostat designed specifically for high-low temperature control in HVAC terminal units like fan coils and induction units. This TH 188 HC model features a direct-acting (DA) heating and reverse-acting (RA) cooling sequence, making it a critical component for two-pipe changeover systems. Engineered with a bimaterial sensing element, it provides reliable proportional control and pneumatic feedback to maintain precise setpoints between 45°F and 85°F. Contractors often utilize this 188-0030 thermostat for its rugged all-metal construction and its ability to handle dual-temperature applications without frequent recalibration. Its unit-mounted design ensures easy installation within the cabinet of unit ventilators, providing a streamlined mechanical room solution that adheres to commercial HVAC specifications. By utilizing a plug-in port for pressure testing and calibration, this dual-output pneumatic controller minimizes downtime during routine system balancing and maintenance cycles.
- Dual-Function Control: Provides seamless heating/cooling changeover for 2-pipe HVAC systems.
- High Sensitivity: Equipped with a bimaterial element for rapid response to ambient temperature shifts.
- Industrial Durability: Robust metal chassis designed to withstand high-vibration unit-mounted environments.
- Field Calibration: Features integrated test ports for verifying branch line pressure and setpoint accuracy.
- Pneumatic Efficiency: Optimized air consumption rates to reduce demand on the instrument air compressor.
Common Technical Questions
How do you configure the changeover pressure for the 188-0030?
This pneumatic thermostat typically switches between heating and cooling modes based on the main line pressure (typically 13 psi for heating and 25 psi for cooling), though specific calibration should follow the Siemens technical instructions for your piping configuration.
Is the Siemens 188-0030 compatible with competitive unit-mounted brackets?
The 188-0030 is designed for universal mounting within most HVAC terminal unit cabinets, but technicians should verify the piping orientation and clearance for the setpoint adjustment dial.
Can this thermostat be used in a single-pressure system?
No, the TH 188 HC is specifically designed for dual-pressure systems requiring different direct/reverse action based on the supply air pressure switchover.
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: $444.16
-65%$444.16
$155.46Siemens Building Technology 188-0030 Thermostat
The Siemens 188-0030 is a heavy-duty unit-mounted pneumatic thermostat designed specifically for high-low temperature control in HVAC terminal units like fan coils and induction units. This TH 188 HC model features a direct-acting (DA) heating and reverse-acting (RA) cooling sequence, making it a critical component for two-pipe changeover systems. Engineered with a bimaterial sensing element, it provides reliable proportional control and pneumatic feedback to maintain precise setpoints between 45°F and 85°F. Contractors often utilize this 188-0030 thermostat for its rugged all-metal construction and its ability to handle dual-temperature applications without frequent recalibration. Its unit-mounted design ensures easy installation within the cabinet of unit ventilators, providing a streamlined mechanical room solution that adheres to commercial HVAC specifications. By utilizing a plug-in port for pressure testing and calibration, this dual-output pneumatic controller minimizes downtime during routine system balancing and maintenance cycles.
- Dual-Function Control: Provides seamless heating/cooling changeover for 2-pipe HVAC systems.
- High Sensitivity: Equipped with a bimaterial element for rapid response to ambient temperature shifts.
- Industrial Durability: Robust metal chassis designed to withstand high-vibration unit-mounted environments.
- Field Calibration: Features integrated test ports for verifying branch line pressure and setpoint accuracy.
- Pneumatic Efficiency: Optimized air consumption rates to reduce demand on the instrument air compressor.
Common Technical Questions
How do you configure the changeover pressure for the 188-0030?
This pneumatic thermostat typically switches between heating and cooling modes based on the main line pressure (typically 13 psi for heating and 25 psi for cooling), though specific calibration should follow the Siemens technical instructions for your piping configuration.
Is the Siemens 188-0030 compatible with competitive unit-mounted brackets?
The 188-0030 is designed for universal mounting within most HVAC terminal unit cabinets, but technicians should verify the piping orientation and clearance for the setpoint adjustment dial.
Can this thermostat be used in a single-pressure system?
No, the TH 188 HC is specifically designed for dual-pressure systems requiring different direct/reverse action based on the supply air pressure switchover.
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 188-0030 is a heavy-duty unit-mounted pneumatic thermostat designed specifically for high-low temperature control in HVAC terminal units like fan coils and induction units. This TH 188 HC model features a direct-acting (DA) heating and reverse-acting (RA) cooling sequence, making it a critical component for two-pipe changeover systems. Engineered with a bimaterial sensing element, it provides reliable proportional control and pneumatic feedback to maintain precise setpoints between 45°F and 85°F. Contractors often utilize this 188-0030 thermostat for its rugged all-metal construction and its ability to handle dual-temperature applications without frequent recalibration. Its unit-mounted design ensures easy installation within the cabinet of unit ventilators, providing a streamlined mechanical room solution that adheres to commercial HVAC specifications. By utilizing a plug-in port for pressure testing and calibration, this dual-output pneumatic controller minimizes downtime during routine system balancing and maintenance cycles.
- Dual-Function Control: Provides seamless heating/cooling changeover for 2-pipe HVAC systems.
- High Sensitivity: Equipped with a bimaterial element for rapid response to ambient temperature shifts.
- Industrial Durability: Robust metal chassis designed to withstand high-vibration unit-mounted environments.
- Field Calibration: Features integrated test ports for verifying branch line pressure and setpoint accuracy.
- Pneumatic Efficiency: Optimized air consumption rates to reduce demand on the instrument air compressor.
Common Technical Questions
How do you configure the changeover pressure for the 188-0030?
This pneumatic thermostat typically switches between heating and cooling modes based on the main line pressure (typically 13 psi for heating and 25 psi for cooling), though specific calibration should follow the Siemens technical instructions for your piping configuration.
Is the Siemens 188-0030 compatible with competitive unit-mounted brackets?
The 188-0030 is designed for universal mounting within most HVAC terminal unit cabinets, but technicians should verify the piping orientation and clearance for the setpoint adjustment dial.
Can this thermostat be used in a single-pressure system?
No, the TH 188 HC is specifically designed for dual-pressure systems requiring different direct/reverse action based on the supply air pressure switchover.
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.
