Unified Brands VENTILATION SYSTEMS - Manual (Page 21)

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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.
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]
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.
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