COMPRESSORS
COMPRESSORS
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 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 2006
2
GD30FDC User Manual
DISTRIBUTED by PROCOLD S.r.l. - Italy - Tel: (+39) 0161 42 44 52 - [email protected]
