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The RESEARCH PRODUCTS 6203k is a multi-zone comfort control kit designed to manage temperature and humidity across up to three independent zones in a forced-air HVAC system. It operates on 18 to 30 VAC at 3 amps with a 40 VA rating, making it compatible with standard low-voltage HVAC control circuits. The unit handles a humidity range of 5 to 90% RH non-condensing and is rated for operating temperatures from 32 to 158 degrees F. Licensed HVAC technicians install this kit as part of a zoning upgrade or replacement in residential and light commercial applications.
This comfort control kit is suited for residential and light commercial forced-air systems where multi-zone control is required. It supports up to three zones, allowing independent climate management in different areas of a building. The kit is designed for wall-mount installation and works within standard thermostat wiring infrastructure. HVAC technicians typically deploy this unit during new zone system installations or when replacing a failed zone controller in an existing setup.
Designed as an OEM-style replacement or upgrade control kit for residential and light commercial multi-zone forced-air HVAC systems using standard 18 to 30 VAC low-voltage wiring.
Installation should be performed by a licensed HVAC technician. Power down the HVAC system at the breaker and disconnect all low-voltage wiring before beginning work. Follow all applicable local codes and manufacturer wiring diagrams when connecting zone damper actuators and thermostat circuits. Verify supply voltage is within the 18 to 30 VAC operating range before energizing the unit.
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