Bard HVAC 8403-060 Temp/Humidity Control

The Bard HVAC 8403-060 is a high-performance OEM digital thermostat and environmental controller engineered for precise atmospheric management in specialized applications. Designed for single-room or equipment-level control, this 3-stage heat/3-stage cool unit integrates temperature, humidity, and ventilation regulation into a single 5-button interface. It is specifically built for Bard wall-mount HVAC systems, making it a standard choice for telecom shelters, server rooms, and modular classrooms where maintaining a stable humidity setpoint between 45% and 95% RH is critical.

Operating with a dedicated ventilation output, the 8403-060 supports 7-day, 5+2, or non-programmable scheduling to optimize energy efficiency during unoccupied cycles. The unit features smart recovery mode and a non-volatile memory that retains all configuration settings during power loss, eliminating the need for batteries. For advanced field diagnostics, the controller includes a test mode for manual output verification and is compatible with Bard 8403-061 outdoor sensors for cooling and heat pump lockouts based on ambient conditions.

• Universal Compatibility: Works seamlessly with 1-stage or 2-stage compressor products as a genuine Bard replacement part.
• Precise Humidity Regulation: Features a built-in dehumidistat function for systems equipped with mechanical reheat (units with "D" in the model number).
• Advanced System Protection: Integrated security lockouts (Total Keypad, Temp Adjust Only, or Mode Only) prevent unauthorized setpoint drift.
• Maintenance Tracking: Built-in runtime tracking for air filters, UV lamps, and humidifiers simplifies preventative maintenance schedules.
• Simplified Installation: Standard 24V wiring and a backlit LCD display ensure fast commissioning and easy-to-read system status.

Is the Bard 8403-060 compatible with building management systems?
No, this controller is designed for local control and does not support BACnet or Modbus communication protocols.

Does this unit require batteries to save the schedule?
The Bard 8403-060 uses non-volatile memory for all setup parameters and setpoints. It can retain the time and date for at least 8 hours during a power outage without batteries.

Can I use an outdoor sensor with this controller?
Yes, it is compatible with the Bard 8403-061 10k-ohm outdoor sensor, which is required for specific cooling and heat pump lockout functions.

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.