Overview
The Honeywell 135595 circuit board (HT-1) is a precision-engineered PCB for HVAC system control and management. This board coordinates heating, cooling, and ventilation functions to ensure efficient, reliable operation. Built to Honeywell’s durability standards, the 135595 is suitable for replacement and upgrade applications in commercial and residential systems.
Key Features
- Designed for HVAC furnace and air conditioning control systems
- Precision-engineered for reliable electronic control and coordination
- Compatible with Honeywell system architecture and standards
- OEM quality construction backed by Honeywell reputation
- New, no-box condition — ready to deploy
Technical Specifications
The 135595 is a circuit board assembly (HT-1 designation) manufactured by Honeywell. As a replacement component, this board integrates with existing HVAC systems to manage control logic, temperature regulation, and system coordination. Installation requires matching to the original system configuration to ensure proper functionality.
Typical Applications
- Furnace control systems (heating operation)
- Air conditioning unit control (cooling operation)
- HVAC system coordination and sequencing
- Commercial and residential climate control systems
- System upgrade and preventive maintenance
Compatibility & Replacements
Compatible With
- Honeywell HVAC furnace systems
- Honeywell air conditioning and heat pump systems
- Honeywell control and sequencing equipment
- Existing Honeywell system configurations matching this board designation
Replaces / Drop-In Replacement For
The Honeywell 135595 serves as a direct replacement for OEM board failures in compatible systems. Verify compatibility with your system integrator or technician before ordering to ensure proper fit and function.
Works With
- Honeywell furnace control modules
- Honeywell thermostat interfaces
- Standard 24V HVAC system wiring
- Honeywell system diagnostics and control software





