Honeywell THM5421R1021/U IAQ Equipment Interface Module

Product Description

The Honeywell THM5421R1021/U is an advanced programmable interface module designed for optimizing indoor air quality control systems. This module is compatible with Honeywell's Prestige 2-Wire IAQ and VisionPRO thermostats, offering comprehensive control over heating and cooling operations.

• Supports 4 stages of heating and 2 stages of cooling in heat pump systems.
• Controls 3 stages of heating and 2 stages of cooling in conventional systems.
• Universal IAQ contacts for humidity, ventilation, and dehumidification control.

Product Highlights

This module facilitates precise control over various environmental conditions within your facility, enhancing comfort and efficiency. Key features include hardwired power sourcing and a versatile gray finish that complements any setup.

Product Information

Standard Information

• Brand: Honeywell
• MPN: THM5421R1021/U

Technical Specifications

• Voltage: 18-30 VAC
• Temperature Range: -40 to 165 degrees Fahrenheit
• Amperage: 1 A running heat, 0.5 A fan
• Stage Configuration: 3 Heat/2 Cool Conventional, 4 Heat/2 Cool Heat Pump
• Terminal Designations: R, RC, RH, C, W-O/B, W2-AUX1, W3-AUX2, Y, Y2, G, A-L/A, U1, U2, U3, S1, S2, S3, S4, A, B, C, D
• Controls: Humidification, Dehumidification, Ventilation
• Mounting: Vertical