52
Suction Filter Removal Instructions
1.
Shut down operation of the unit
2.
Close both shut-off valves to isolate
the suction filter
3.
Reclaim the refrigerant from the
suction filter section
4.
Remove the bolts from the suction
filter end plate
5.
Remove the pleated filter assembly
6.
Replace the suction filter end plate
and bolts
7.
Evacuate the suction filter assembly
to 500 microns
8.
Open both shut-off valves
Refrigerant Liquid Line Filter Driers
Each refrigerant circuit contains a liquid line
replaceable core filter drier. Replacement is
recommended when there is excessive
pressure drop across the assembly or
moisture is indicated in a liquid line sight
glass.
Figure 32 - Replaceable Core Filter Driers
Table 11 - Filter Drier Maximum Pressure
Drop
Circuit Loading
Max. Pressure Drop
100%
10 psig
50%
5 psig
The filter driers are provided with pressure
taps and shutoff valves for isolation when
changing the core. For safety purposes a
service manifold must be attached prior to
filter maintenance.
Service gauges MUST BE connected
before operating the isolation valves
for the liquid line filter drier.
WARNING
Содержание LZ Series
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Страница 36: ...36 Figure 17 Typical Flue Vent Piping ...
Страница 40: ...40 Figure 24 Typical Vertical Vent Piping Figure 25 Vertical Termination of Air Intake and Vent Piping ...
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