Brochure

Page 8 – Bulletin 40-10
Thermostatic
Expansion Valve
ASC Auxiliary
Side Connector
OROA-5
Head
Pressure
Control
Valve
Liquid
Line
Solenoid
Valve
Filter-Drier
Moisture &
Liquid Indicator
Refrigerant
Distributor
Discharge
Gas
Condensed
Liquid
Discharge Gas Bypassed
Condenser Bypass Discharge Gas
External Equalizer
Connection
External Equalizer Connection
Saturated Liquid
Vapor at TEV Outlet
Solid Liquid
Superheated
Suction Gas
Receiver
Evaporator Evaporator
Condenser
Condenser
Hot Gas
Solenoid Valve
Suction
Filter
ADR Hot Gas
Bypass Valve
CROT
Crankcase
Pressure
Regulating
Valve
ORIT
Evaporator Pressure
Regulating Valve
OR
Suction Line
Filter-Drier
Compressor Compressor
TA-1 Acid
Test Kit
■
CATCHALL LOCATION
Catch-All Filter-Driers are most effective
in the liquid line. Place the filter-drier
immediately ahead of other liquid line
controls, such as the thermostatic expan-
sion valve, solenoid valve, and See•All
Moisture & Liquid Indicator. When
applied in this way, the Catch-All pro-
vides maximum protection for the expan-
sion valve and solenoid valve from dirt
that may be in the system. If the system
contains appreciable moisture, then this
location gives the best results in protect-
ing the expansion valve from freeze-up.
If possible, place the filter-drier in a cold
location. The acid removal ability of
the Catch-All Filter-Drier is the same
whether it is installed in the liquid line or
suction line.
Catch-All Filter-Driers are frequently
installed in the suction line just ahead of
TYPICAL PIPING DIAGRAM
This schematic is for component location only,
not a typical piping recommendation.
Application – Installation
the compressor. This procedure is used
to clean up a new system or a system that
has had a hermetic motor burnout. The
main advantage of this location is that it
is directly ahead of the compressor, and
therefore offers maximum protection to
the compressor from all contaminants,
even those that may be in the low side of
the system. Suction line filter-driers give
excellent performance in removing water,
dirt and acid. A larger size filter-drier is
required than if it had been placed in the
liquid line. The refrigerant velocity in the
suction line is about six times the velocity
in the liquid line. Therefore, a larger filter-
drier is required in order to maintain a
sufficiently low pressure drop.
The water capacity of a Sporlan Catch-
All in the suction line is equal to or
slightly greater than the liquid line water
capacity. Filtration and acid removal in
the suction line is equal to that obtained
in the liquid line. The main disadvantage
of the suction line location is that a larger
more expensive filter-drier is required.
Catch-All Filter-Driers are not recom-
mended for use in the discharge line. The
water capacity in this location would be
greatly reduced due to the high operating
temperature.
Catch-All Filter-Driers may be installed
in any position, with top or bottom
feed. However, it is advisable to mount
replaceable core models horizontally so
that foreign material cannot drop into the
outlet fitting when the cores are removed.
Always observe the flow direction. Except
for Catch-Alls used in heat pump systems
(HPC models), Catch-Alls must never be
subjected to reverse flow.