How should the wires be prepared for installation in the wire terminal block on the 3M22 thru 3M50 thermostats?
To wire the thermostat strip the wires back about 1/8 of an inch. Insert the wire in the correct terminal making sure you go through both holes and then snug the screw down tight enough to get a good contact but not too tight that you break the wire or the screw. Then pull on the wire to make sure it is connected.