COMPRESSORS
COMPRESSORS
4.5
7.5
12
18
3
5
8
12
1.5
2.5
4
6
2.5
4
6
10
Table 1: Maximum length of leads (m)
Cross section
mm
2
Rated Operating Range
12-14 V
24-28 V
36-42 V
GD30FDC must always be powered through the dedicated electronic driver FDC1, which is supplied
with the compressor as a separate device.
NEVER CONNECT THE COMPRESSOR’S HERMETIC PINS (FUSITE) TO THE TERMINALS OF A BATTERY OR
ANY OTHER DC OR AC SOURCE DIRECTLY.
DO NOT TRY TO FIT AN ELECTRONIC DRIVER OTHER THAN THE FDC1. THE COMPRESSOR WILL NOT
OPERATE AND IRREVERSIBLE DAMAGE MAY OCCUR.
The FDC1 driver is directly connected to the battery poles as well as to the compressor pins. It checks
battery voltage and adjusts itself to the voltage value for proper compressor operation, or switches
itself off if the battery voltage is not adequate. The driver also controls the compressor speed.
ALWAYS RESPECT THE POLARITY OF THE BATTERY WITH THE POWER INPUT TERMINALS OF THE
ELECTRONIC DRIVER
The unit is protected against damage caused by wrong polarity of the supply,. The compressor will not
run correctly if it’s wrongly connected.
“-“ POWER INPUT TERMINAL OF THE ELECTRONIC DRIVER SHOULD BE REFERRED TO THE CHASSIS OF
THE VEHICLE AS WELL AS THE APPLIANCE FRAME*
A FUSE MUST BE PLACED BETWEEN THE “+” POLE OF THE BATTERY OR DC POWER SUPPLY AND THE “+”
POWER INPUT TERMINAL OF THE ELECTRONIC DRIVER*
12V SYSTEMS: 30A FUSE
24V SYSTEMS: 15A FUSE
42V SYSTEMS: 10A FUSE
*
In some special vehicles chassis is connected to “+” terminal of the battery instead of “-“ terminal
(positive reference systems). In such cases “+” should be understood as “-“ and vice-versa.
In systems powered by a variable DC source, the fuse should be selected following the rules above
mentioned, considering the maximum voltage at the variable DC Source.
To avoid excessive voltage drop in the leads, their length and cross section must be related to the
voltage supply as indicated in Table 1.
2.
WIRING AND CONNECTIONS
General rules
Voltage drop in the power leads
September 2006
3
GD30FDC User Manual
DISTRIBUTED by PROCOLD S.r.l. - Italy - Tel: (+39) 0161 42 44 52 - [email protected]
