dIXEL IPC400D SERIES, Руководство пользователя

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! USER MANUAL – Release 1.2 of 01/01/2010 Page 150 of 191 Version: 02/03/2010
54.7
FREE COOLING VENTILATION WORKING MODE
If FC01 = 2 and FC06 =1 the ventilation of the unit follows the regulation indicated in the graphics below:
Steps Proportional
In the same way, if FC01=3 the external fans will be activated from the free cooling ON/OFF ventilation relay
output, piloted according to the layout below:
The same type of working is obtained using condensation fans, setting the parameter FC06 at 0.
If FC01 = 1 on switch-on of the first compressor the condensation ventilation regulation follows the normal
regulation of the cooling.
In the case of two condensation ventilation circuits separated by compressor switch-on request, normal
cooling regulation only takes place in the circuit with request, while the regulation inside the other remains on
the basis of the temperature detected by the temperature control probe.
54.8
FRACTIONED BATTERY
If the condensation temperature or pressure (on the basis of unit configuration) reaches the set-point
defined, the control opens the valves to increase the external coil exchange surfaces. The working logic
works on two steps:
•
If the condensation temperature or pressure is > FC11, the outputs of the fractioned coil first step
(outputs n°40, 42, 44 and 46) are active. When the condensation temperature or pressure is < FC11-
FC12, the outputs are deactivated.
•
If the condensation temperature or pressure is > FC13, the outputs of the fractioned coil second step
(outputs n°41, 43, 45 and 47) are active. When the condensation temperature or pressure is < FC13-
FC14, the outputs are deactivated.