Control unit for starting a climitization procedure in a building

A control unit for controlling the start of a climatization procedure in a building, wherein a pulse generator is provided for generating pulses used in timing the operations of the control unit, first and second temperature sensor means are provided for sensing the interior temperature of the building and the external temperature outside of the building and for respectively producing first and second voltages in accordance therewith, and an equivalent electrical circuit for controlling the operations of the control unit is arranged to simulate the thermal properties of the building during temperature conditioning operations, i.e., heating or cooling, the equivalent electrical circuit being fed with a said first voltage representative of the interior temperature in the building, and a said second voltage representative of the external temperature outside of the building, and the time required for a discharge, a charge or an equalization of one or more voltages on condensers contained in the equivalent electrical circuit being representative of the period of time required for conditioning the temperature of the building, after the conditioning system has been out of use during a predetermined period of time, the discharge or charge or equalization time being short as compared with the time for conditioning the temperature of the building and being used for calculation of the correct moment for starting the conditioning procedure by the control unit, said pulse generator being arranged to generate pulses of a very high frequency, and said control unit further including a binary type pulse frequency divider for receiving pulses from said pulse generator and for producing a pulse train of binary pulses of a substantially lower frequency, a decadic counter connected to one output of said pulse frequency divider for converting the binary pulses into decadic pulses, said decadic counter including coincidence circuits connected to a plurality of outputs of the decadic counter for producing pulses representative of different end digits of the decadic numbers, and a plurality of different control means for controlling the start of the climatization procedure by said control unit connected to individual ones of said outputs of said decadic counter so that the sequence of operations of said control unit under the control of said equivalent electrical circuit takes place in an order determined by said end digits.