SURFACE TEMPERATURE HIGH LIMIT CUT-OFF (if supplied)
1.Disconnect power from unit.
2.Remove access cover.
3.Disconnect the four (4) 14 gauge wires or three (3) 14 gauge wires and a jumper, as required.
Control Wires
4.Remove the two (2) mounting screws or disconnect from thermostat, as required.
Mounting Screws 
5.Replace control and install new high limit switch by performing above steps in reverse order.
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