6
Depressurization valve
. It is utilized only during the air bleeding phase, at the first plant start-up. It
is recognizable by a bleu lever and it is located on the right of the watermaker. Its function is to de-
pressurize the plant and to allow the bleeding of air at the first plant start-up. The valve must be
closed during normal working conditions (vertical position), and it is opened during the air bleeding
operations (horizontal position).
Positioner
: It is a stainless steel threaded arm, with a black knob, located on the right side of the
unit, beside the reset valve. Its function is to reset the unit in case the system blocks during the restart.
Reset valve.
It is installed next to the watermaker right front corner and it is recognizable by the little
blue plastic lever. The valve must be closed during normal functioning (lever perpendicular to the
valve). Such valve has the function to allow the reset in case of a system block. It must be opened be-
fore acting on the valve positioner.
Probe (pressure switch).
It is a little steel device, mounted on the aluminum structure. It is con-
nected to the computer throw the cables PS / PS . Its function is to check the cycling of the machine .
Computer box .
It is an external unit. It has to be installed relatively close to the watermaker, in a
position protected from water. It is connected to the remote panel and controls the functions of the
watermaker automatically.
The microswitches P1and EV allow the direct command of the pump the electrovalve respectively.
They can be used, as an emergency solution, for starting the watermaker in case of total failure of the
electronic computer. In normal condition they have to be switched off.
Remote panel
cable
Emergency
microswitches
Electric
connections
