Neptronic TRO5404 Thermostat
The Neptronic TRO5404 Thermostat is a high-performance room controller thermostat designed for precision management of commercial HVAC systems, including variable air volume (VAV) clusters and modulating duct heaters. Engineered for 24 VAC low-voltage operation, this proportional controller features 2 heat / 2 cool analog outputs (0-10VDC) along with a dedicated TPM (Time Proportional Modulation) signal, allowing for granular control over damper actuators, actuated valves, and pulsed baseboards. The unit operates within a setpoint range of 50°F to 95°F (10°C to 35°C) with a high control accuracy of ±0.4°F. Its backlit LCD interface provides clear status updates, while the multi-level lockable access menu ensures setpoint stability in high-traffic environments. This controller also supports an external temperature sensor (3.3 kΩ or 10 kΩ), enabling remote sensing capabilities for complex duct or wall-mount configurations. With its modulating control logic and adjustable proportional band (1°F to 8°F), the TRO5404 is a reliable choice for technical contractors seeking stable, energy-efficient thermal regulation.
Key Benefits- Versatile Output Configuration: Features four 0-10VDC analog outputs plus a TPM output to drive 2H/2C staging or modulating equipment.
- Enhanced System Security: Includes a fully lockable menu and setpoint limits to prevent unauthorized field adjustments.
- Precise Environmental Control: High-accuracy sensor with adjustable proportional band minimizes temperature swings in VAV applications.
- Remote Sensing Support: Configurable for internal or external thermistor inputs (Type 3 or Type G) for flexible installation.
- Night Setback (NSB) Integration: Manual or automated override capabilities help reduce energy consumption during unoccupied hours.
What type of external sensors are compatible with the TRO5404?
This controller is designed to work with either 3.3 kΩ or 10 kΩ (Type 3/Type G) NTC thermistors. The sensor type must be selected within the technical programming menu during commissioning.
Can this unit control electric duct heaters?
Yes, the TRO5404 is frequently used for modulating or pulsed electric heaters. The 0-10VDC signals are ideal for SCR power controllers, while the TPM output can handle pulsed baseboards or smaller relays.
Is this thermostat suitable for outdoor air applications?
No, the operating range is 32°F to 122°F. For fresh air applications where temperatures may drop below freezing, a controller with an extended temperature range should be used to avoid system alarms.
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.
Neptronic TRO5404 Thermostat
The Neptronic TRO5404 Thermostat is a high-performance room controller thermostat designed for precision management of commercial HVAC systems, including variable air volume (VAV) clusters and modulating duct heaters. Engineered for 24 VAC low-voltage operation, this proportional controller features 2 heat / 2 cool analog outputs (0-10VDC) along with a dedicated TPM (Time Proportional Modulation) signal, allowing for granular control over damper actuators, actuated valves, and pulsed baseboards. The unit operates within a setpoint range of 50°F to 95°F (10°C to 35°C) with a high control accuracy of ±0.4°F. Its backlit LCD interface provides clear status updates, while the multi-level lockable access menu ensures setpoint stability in high-traffic environments. This controller also supports an external temperature sensor (3.3 kΩ or 10 kΩ), enabling remote sensing capabilities for complex duct or wall-mount configurations. With its modulating control logic and adjustable proportional band (1°F to 8°F), the TRO5404 is a reliable choice for technical contractors seeking stable, energy-efficient thermal regulation.
Key Benefits- Versatile Output Configuration: Features four 0-10VDC analog outputs plus a TPM output to drive 2H/2C staging or modulating equipment.
- Enhanced System Security: Includes a fully lockable menu and setpoint limits to prevent unauthorized field adjustments.
- Precise Environmental Control: High-accuracy sensor with adjustable proportional band minimizes temperature swings in VAV applications.
- Remote Sensing Support: Configurable for internal or external thermistor inputs (Type 3 or Type G) for flexible installation.
- Night Setback (NSB) Integration: Manual or automated override capabilities help reduce energy consumption during unoccupied hours.
What type of external sensors are compatible with the TRO5404?
This controller is designed to work with either 3.3 kΩ or 10 kΩ (Type 3/Type G) NTC thermistors. The sensor type must be selected within the technical programming menu during commissioning.
Can this unit control electric duct heaters?
Yes, the TRO5404 is frequently used for modulating or pulsed electric heaters. The 0-10VDC signals are ideal for SCR power controllers, while the TPM output can handle pulsed baseboards or smaller relays.
Is this thermostat suitable for outdoor air applications?
No, the operating range is 32°F to 122°F. For fresh air applications where temperatures may drop below freezing, a controller with an extended temperature range should be used to avoid system alarms.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Neptronic TRO5404 Thermostat is a high-performance room controller thermostat designed for precision management of commercial HVAC systems, including variable air volume (VAV) clusters and modulating duct heaters. Engineered for 24 VAC low-voltage operation, this proportional controller features 2 heat / 2 cool analog outputs (0-10VDC) along with a dedicated TPM (Time Proportional Modulation) signal, allowing for granular control over damper actuators, actuated valves, and pulsed baseboards. The unit operates within a setpoint range of 50°F to 95°F (10°C to 35°C) with a high control accuracy of ±0.4°F. Its backlit LCD interface provides clear status updates, while the multi-level lockable access menu ensures setpoint stability in high-traffic environments. This controller also supports an external temperature sensor (3.3 kΩ or 10 kΩ), enabling remote sensing capabilities for complex duct or wall-mount configurations. With its modulating control logic and adjustable proportional band (1°F to 8°F), the TRO5404 is a reliable choice for technical contractors seeking stable, energy-efficient thermal regulation.
Key Benefits- Versatile Output Configuration: Features four 0-10VDC analog outputs plus a TPM output to drive 2H/2C staging or modulating equipment.
- Enhanced System Security: Includes a fully lockable menu and setpoint limits to prevent unauthorized field adjustments.
- Precise Environmental Control: High-accuracy sensor with adjustable proportional band minimizes temperature swings in VAV applications.
- Remote Sensing Support: Configurable for internal or external thermistor inputs (Type 3 or Type G) for flexible installation.
- Night Setback (NSB) Integration: Manual or automated override capabilities help reduce energy consumption during unoccupied hours.
What type of external sensors are compatible with the TRO5404?
This controller is designed to work with either 3.3 kΩ or 10 kΩ (Type 3/Type G) NTC thermistors. The sensor type must be selected within the technical programming menu during commissioning.
Can this unit control electric duct heaters?
Yes, the TRO5404 is frequently used for modulating or pulsed electric heaters. The 0-10VDC signals are ideal for SCR power controllers, while the TPM output can handle pulsed baseboards or smaller relays.
Is this thermostat suitable for outdoor air applications?
No, the operating range is 32°F to 122°F. For fresh air applications where temperatures may drop below freezing, a controller with an extended temperature range should be used to avoid system alarms.
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.
