The SC-TK-400 panel is designed to allow a single thermostat to control two separate HVAC units. This twinning kit can also be expanded to control a total of four HVAC units. The TK-400 can be used on common or separated ducted systems with single-stage, multi-stage and heat pump equipment. Only standard 18 gauge thermostat wire is required. Thermostats and HVAC units can be located up to 300” from the panel.
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