Can I use a Filtrete (TM) Thermostat from 3M with my swamp cooler?
Yes and No. It depends on the swamp cooler. Some of these units are high voltage and others are low voltage. If the unit is low voltage in most case it will work and be connect like any air conditioning system, i.e. RC, Y and G (sometimes G2) If there is a two speed fan, connect just the G fan wire to the thermostat’s G terminal for low or both fan wires (G and G2) to the thermostat’s G terminal for high fan. Our 6002 is a line voltage thermostat that can do heat or cool and would work fine with swamp coolers particularly the large roof mounted type.
