Tag: Tekmar 521
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Tekmar 521 Programmable Thermostat Installation and Operation Manual
Tekmar 521 Programmable Thermostat Introduction The Programmable Thermostat 521 is designed for three different modes of operation: single stage heating, two stages of heating with a fan, or one stage of heating and one stage of cooling with a fan. Two auxiliary sensors may be added to measure the floor, outdoor or room temperature. A…