Dulas VC150SDD, Инструкция по установке и руководство техника

Страница: 37 / 47

VC150SDD Installation & Technician’s Manual
Page 37 of 47
Section 4. Dulas SDD controller testing.
If Section 2 and Section 3 have been completed and no problem has been found the problem is
likely to lie with the Dulas SDD controller. This controller provides the following:

Connections for the compressor, PV and capacitor (connector J1).
 The refrigerator thermostat
There are two temperature sensors mounted on the right hand side at the top and bottom
of the fridge cabinet. When there is sufficient light for the PV array the controller ensures
that the average fridge is maintained at 3.5C. As a fail-safe the compressor will have
turned off if the lower temperature is below 3C, even if the average temperature is higher
than 3.5C.

Control of the green LED on the front panel
The front panel LED will illuminate to signify that the compressor is running.
If there is enough solar power the compressor will usually run for a few hours at the start of
the day and then run intermittently after that to maintain the correct internal temperature.