Dometic electronic thermostat control kit for use with the 5-button 3109228.001 thermostat. Used in the following air conditioners without electric heat kits: 520, 5305, 579, 590, 591, 59136, 595, 59516, 600, 630 & 630035 series. Thermostat not included.
Soon this relay box and thermostat 3109228.001 will be obsolete and replaced with the 12-button CCCII programable thermostat 3314082.011 and relay box 3312020.000. If you need to replace the relay box, you will also have to replace the thermostat.