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Honeywell THM5421C1008 VisionPRO IAQ Equipment Interface Module HVAC Control
- Regular price
- $84.00
- Sale price
- $84.00
- Regular price
-
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Product Description P/N: THM5421C1008
Description
The Honeywell THM5421C1008 is an equipment interface module designed for use with VisionPRO IAQ thermostat systems. It enables centralized control of heating, cooling, humidification, dehumidification, and ventilation using a simplified 3-wire connection. This module enhances HVAC system integration and performance in residential and light commercial applications.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Honeywell |
| Category | HVAC Controls |
| Part Number | THM5421C1008 |
| Subcategory | Interface Modules |
| Product Type | Equipment Interface Module |
| System Compatibility | VisionPRO IAQ / EnviraZONE |
| Application | Heat/Cool or Heat Pump with Auxiliary Heat |
| Voltage | 20–30 VAC |
| Frequency | 60 Hz |
| Fan Current | 0.6 A Running |
| Heat Current | 1.0 A Running |
| Power Method | Hardwired |
| Terminal Designations | Multiple (R, Rc, Rh, Y, Y2, G, W1, W2, etc.) |
| Sensor Support | Outdoor, Remote, Discharge (Optional) |
| Dimensions | 185 mm x 116 mm x 34 mm |
| Color | Premier White® |
| Included Components | Equipment Interface Module Only |
| Weight | 0.9 lb |
Information About THM5421C1008
The THM5421C1008 is part of the Honeywell VisionPRO IAQ system, engineered to act as the central wiring and control interface between the thermostat and HVAC equipment. It allows advanced system control including dual-fuel heat pump management, indoor air quality regulation, and ventilation coordination. Designed for compatibility with VisionPRO IAQ thermostats and EnviraZONE panels, it reduces installation complexity by requiring only three wires between the thermostat and module. With support for optional outdoor, discharge, and remote sensors, it provides precise environmental control and efficient system operation.
Key Features:
- Central Equipment Interface: Connects thermostat to HVAC equipment for unified control
- 3-Wire Communication: Simplifies installation and reduces wiring requirements
- Multi-System Control: Manages heating, cooling, humidification, dehumidification, and ventilation
- Dual-Fuel Compatibility: Supports advanced heat pump and auxiliary heat configurations
- Indoor Air Quality Control: Enables humidification and dehumidification management
- Ventilation Management: Controls fresh air exchange for improved air quality
- Sensor Compatibility: Supports outdoor, discharge, and remote temperature sensors
- Flexible Terminal Design: Multiple input/output terminals for system customization
- Hardwired Power Supply: Ensures stable and continuous operation
- EnviraZONE Integration: Compatible with zoning panels for expanded system control
- Compact Wall Mount Design: Easy installation in HVAC control areas
- Reliable Performance: Designed for consistent operation in residential HVAC systems
The THM5421C1008 delivers the reliability and precision required for advanced HVAC system integration and indoor air quality management.
Description
The Honeywell THM5421C1008 is an equipment interface module designed for use with VisionPRO IAQ thermostat systems. It enables centralized control of heating, cooling, humidification, dehumidification, and ventilation using a simplified 3-wire connection. This module enhances HVAC system integration and performance in residential and light commercial applications.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Honeywell |
| Category | HVAC Controls |
| Part Number | THM5421C1008 |
| Subcategory | Interface Modules |
| Product Type | Equipment Interface Module |
| System Compatibility | VisionPRO IAQ / EnviraZONE |
| Application | Heat/Cool or Heat Pump with Auxiliary Heat |
| Voltage | 20–30 VAC |
| Frequency | 60 Hz |
| Fan Current | 0.6 A Running |
| Heat Current | 1.0 A Running |
| Power Method | Hardwired |
| Terminal Designations | Multiple (R, Rc, Rh, Y, Y2, G, W1, W2, etc.) |
| Sensor Support | Outdoor, Remote, Discharge (Optional) |
| Dimensions | 185 mm x 116 mm x 34 mm |
| Color | Premier White® |
| Included Components | Equipment Interface Module Only |
| Weight | 0.9 lb |
Information About THM5421C1008
The THM5421C1008 is part of the Honeywell VisionPRO IAQ system, engineered to act as the central wiring and control interface between the thermostat and HVAC equipment. It allows advanced system control including dual-fuel heat pump management, indoor air quality regulation, and ventilation coordination. Designed for compatibility with VisionPRO IAQ thermostats and EnviraZONE panels, it reduces installation complexity by requiring only three wires between the thermostat and module. With support for optional outdoor, discharge, and remote sensors, it provides precise environmental control and efficient system operation.
Key Features:
- Central Equipment Interface: Connects thermostat to HVAC equipment for unified control
- 3-Wire Communication: Simplifies installation and reduces wiring requirements
- Multi-System Control: Manages heating, cooling, humidification, dehumidification, and ventilation
- Dual-Fuel Compatibility: Supports advanced heat pump and auxiliary heat configurations
- Indoor Air Quality Control: Enables humidification and dehumidification management
- Ventilation Management: Controls fresh air exchange for improved air quality
- Sensor Compatibility: Supports outdoor, discharge, and remote temperature sensors
- Flexible Terminal Design: Multiple input/output terminals for system customization
- Hardwired Power Supply: Ensures stable and continuous operation
- EnviraZONE Integration: Compatible with zoning panels for expanded system control
- Compact Wall Mount Design: Easy installation in HVAC control areas
- Reliable Performance: Designed for consistent operation in residential HVAC systems
The THM5421C1008 delivers the reliability and precision required for advanced HVAC system integration and indoor air quality management.