L. Detergent Pump and Tank

Terminals No. 23 and 24 of AVTEC terminal strip supply 120vac power to the detergent pump during the Wash Cycle[s]. The pump does not run during the Fire Cycle nor when the detergent level is below the bottom of the probe.

To start the flow of detergent, press the Pump Prime Switch while the PAWS panel is not in a wash cycle [no pressure on the outlet side of the pump]. Hold the Pump Prime Switch until there is no air in the suction line of the pump or in the pump head itself. Once there is a solid column of detergent from the tank through the pump, no further action [except to fill the detergent tank] should be required.

Detergent pumps are factory preset according to the chart in fig. no. 15. This is a generalized guide; settings may vary depending on water temperature and pressure, detergent type and concentration, grease load and PAWS duration.

VII. VENTILATOR FEATURES AND ACCESSORIES A. Baffle Filter Ventilators [AF Models]

These type of ventilators have removable filters which extracts and collects grease in a receptacle.

1.Filter Installation [Refer to fig. 20]

Grease extractor filters are installed by sliding them into the upper slot and then lowering them into the grease trough slot as shown in the drawing below.

Terminals No. 21 and 22 of AVTEC terminal strip are low voltage [20vdc, 2ma] connections for the detergent level probe. The probe should be installed in the detergent container so that it is above the top of the detergent pump inlet strainer. It

is intended to prevent air from entering the pump and notify the operator when it is time to refill or replace the detergent tank. The probe rods may be cut to facilitate a neat and effective installation. [See fig. no. 9]

fig. 20

The filters are removed for cleaning by reversing the procedure.

NOTE: The filters must be installed with the baffles running vertically and with the handles facing toward the capture area.

2.Grease Receptacles

Grease receptacles are located at one each of each ventilator section. These must be cleaned out periodically. The frequency of this cleaning is dependent upon the type of equipment used beneath the ventilator and the duration of its use.

It is suggested that initially the grease receptacles be emptied daily.

B. Modular Grease Extractors [AX Models] These type ventilators have removable extractor modules which extracts grease contaminants which collects in a grease receptacle at each end of the ventilator section.

1. Grease Extractor Module Installation