Honeywell YTHM5421R1010/U Prestige 2-Wire IAQ Equipment Interface Module Kit 18-30 VAC (2 Duct Sensors) THM5421R1021

Product Description

The Honeywell YTHM5421R1010/U is a Prestige 2-wire IAQ equipment interface module kit that integrates HVAC equipment control and includes two duct sensors. The module operates on 18 to 30 VAC at 50/60 Hz, provides up to four sensor inputs or dry contacts, and offers three universal IAQ contacts for humidification, dehumidification, and ventilation. It supports multi-stage heat and cool configurations and is compatible with RedLINK thermostats.

• Controls up to 4 heat / 2 cool stages for heat pump systems and up to 3 heat / 2 cool stages for conventional systems
• Operates on 18–30 VAC, 50/60 Hz with screw terminal wiring; includes two duct sensors and four sensor inputs
• Three universal IAQ contacts for humidification, dehumidification, and ventilation; compatible with RedLINK communication

Product Highlights

Prestige 2-wire IAQ equipment interface kit; 18–30 VAC operation; supports multi-stage heating/cooling, three IAQ contacts, four sensor inputs, and includes two duct sensors.

Product Information

Standard Information

• Brand: HONEYWELL
• Manufacturer Part Number: YTHM5421R1010/U
• Country of Origin: United States

Technical Specifications

• Brand: Honeywell
• Manufacturer Part Number: YTHM5421R1010/U
• Model Number: YTHM5421R1010
• Product Type: Prestige 2-Wire IAQ Equipment Interface Module Kit
• Included Sensors: 2 duct sensors
• Input Voltage: 18-30 VAC
• Frequency: 50/60 Hz
• Terminal Type: Screw terminal
• Control Capacity (Heat Pump): Up to 4 stages of heat and 2 stages of cool
• Control Capacity (Conventional): Up to 3 stages of heat and 2 stages of cool
• IAQ Contacts: Three universal IAQ contacts (humidification, dehumidification, ventilation)
• Sensor Inputs: Four sensor inputs for wired sensors or dry contact devices
• Communication: RedLINK compatible
• UPC: 085267386524
• Compatible With: Prestige 2-Wire IAQ thermostats (THX9421R5021) and VisionPRO thermostats with RedLINK technology