Resideo YTHX1200W7 Thermostat Kit

The Resideo YTHX1200W7S1200 ElitePRO S1200 Thermostat Kit is a professional HVAC control package designed for residential and light-commercial 24 VAC systems. The S1200 platform supports gas, oil, electric warm-air, hydronic, fan-coil, PTAC, conventional, and heat pump applications while providing advanced HVAC and indoor air quality control through a modern touchscreen interface.

The system supports up to 3 heat/4 cool conventional stages or 4 heat/2 cool heat pump stages. Operating voltage is 20–30 VAC, 60 Hz. The kit includes the thermostat and Equipment Interface Module (EIM) and supports RedLINK 3.0 connectivity for compatible Resideo sensors and accessories.

For replacement or retrofit applications, verify the exact thermostat model, existing HVAC equipment, system voltage, staging configuration, EIM requirements, and RedLINK accessory compatibility before ordering.

Key Benefits

• Resideo ElitePRO S1200 smart thermostat kit
• Supports residential and light-commercial HVAC systems
• Up to 3 heat/4 cool conventional stages
• Up to 4 heat/2 cool heat pump stages
• 20–30 VAC operating voltage
• Includes thermostat and Equipment Interface Module (EIM)
• Supports RedLINK 3.0 compatible sensors and accessories
• Touchscreen interface with HVAC and indoor air quality control capabilities
• Suitable for conventional and heat pump applications

Common Questions

What HVAC systems can the Resideo S1200 control?
It is designed for compatible 24 VAC gas, oil, electric warm-air, hydronic, fan-coil, PTAC, conventional, and heat pump systems.

How many heating and cooling stages does it support?
It supports up to 3 heat/4 cool conventional or 4 heat/2 cool heat pump stages.

Does the kit include an Equipment Interface Module?
Yes. The kit includes an Equipment Interface Module (EIM).

Does it support RedLINK?
Yes. The S1200 supports RedLINK 3.0 for use with compatible Resideo sensors and accessories.

What should be verified before ordering?
Confirm the exact thermostat part number, HVAC system type, voltage, heating and cooling stages, EIM requirements, and RedLINK accessory compatibility.

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.

YTHX1200W7 is the updated version for YTHM1004R3000, YTHX9421R5127WW (4H/2C heat pump or 3H/4C conventional WHITE)

This item is not eligible for free shipping.