COMPRESSORSCOMPRESSORS The electronic control unit FDC1 is supplied with the exclusive Serial Port Interface (SPI), featuring a RJ11 telephone type connector. SPI allows the electronic driver to be connected to a computer for programming purposes using the FDC programming package (hardware and software, provided by ACC under request), and allows the communication with an Electronic Integral Manager of the appliance (EIM), and making the compressor work in slave mode.FDC1 electronic driver includes Smart Speed® as programming option, which is a plug-in system for automatically self-adapting compressor speed to current thermal load. Smart Speed® reduces the number of thermostat cycles by minimizing compressor speed, enlarging on-time at every thermostat cycle, so that start/stop energy loses are substantially reduced. Lowest speed yields also highest evaporating temperature, and so highest C.O.P. and lowest energy consumption. Pull-down is done at maximum programmed speed, so pull-down time is very short with respect to fixed speed systems. No design parameters neither of the compressor nor the appliance are required to be programmed, so Smart Speed® can be easily used in all appliances with no design efforts.FDC1 electronic driver includes also Sleep and Sleep Energy Saving as programming option, which are plug-in systems specially conceived for mobile air conditioners avoiding any other electronic device. Sleep and Sleep Energy Saving make the marine air conditioner work for four hours since start-up. Sleep Energy Saving makes the compressor run at maximum programmed speed during the first hour, when highest cooling capacity is needed, and lowers compressor speed progressively to minimum velocity three hours later. Maximum comfort and minimum energy consumption are thus achieved.GD30FDC starting capability is as low as 10V under any balanced pressure. It also admits a certain remaining differential pressure when thermostat off-time is abnormally short. For improving even more the starting capability, FDC1 electronic driver is supplied with a 3 minutes minimum thermostat off-time. The delay is a programming option which can be easily removed if no delay is preferred for any reason.FDC1 also includes a 1 second filter at the thermostat input to prevent the appliance from wrong operation due to typical micro switching produced by vibrations in those appliances that fit tilt switches at the thermostat circuit. So, analogical filtering is not needed. September 20062GD30FDC User Manual DISTRIBUTED by PROCOLD S.r.l. -Italy- (+39) 011 917 22 02 info@procold.it