Cornelius Quantum 1000 Informacje Techniczne Pobierz pdf (Strona 20)

Wilshire Juice Training Manual

problem may be a low charge. If a low charge is suspected, it is recommended that

the system be evaluated and leak tested by standard methods.

NOTE: Hooking up a high side hose to a system with only 6.25oz of refrigerant

causes a quarter or more of the charge to backup into the hose, immediately

resulting in an incorrect reading. It is for this reason that operating pres-

sures are not published.

Since the initial production of the SLJ/Quantum dispenser, the amount of the

refrigerant charge has changed. Earlier units specify a 5.Ooz charge while later

units specify a 6.25oz charge. The reason for this change was driven by field ser-

vice issues. While the 5oz charge produces the optimum cooling temperatures, a

slight under charge from this critical point can cause a flash freeze in the water

evaporator inlet. By increasing the charge to 6.25oz, we have increased the buffer

zone between the correct charge and an under charge without any significant per-

formance loss. Changes to the refrigeration system were not necessary to make this

adjustment. Early units with a 5oz charge on the nameplate may be recharged to

6.25oz if refrigeration service is called for.

5.3 Filter/Dryer Replacement

The style of filter dryer utilized in the Cornelius/Wilshire juice dispenser has

recently changed. The dryer previously in use was a standard configuration Alco

dryer with one inlet and one outlet. Our new dryer is of a different configuration.

Instead of the standard configuration, this dryer has two inlets and two outlets. The

two inlets are for the refrigerant line from the condenser and a process tube. The

two outlets are for the refrigerant line leading to the liquid line solenoid valve and

the capillary tube that controls the concentrate evaporator.

5.4 Condenser Cleaning

To clean the Condenser or change the fan motor follow this procedure.

1. Disconnect the power cord then remove the drip tray, splash panel, top panel, and

both side panels.

SYSTEM DETAILS

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