RWF ROTARY SCREW COMPRESSOR UNITS
GENERAL INFORMATION
S70-600 IOM
Page 3
PREFACE
This manual has been prepared to acquaint the owner and
serviceman with the INSTALLATION, OPERATION, and
MAINTENANCE procedures as recommended by Frick for
RWF Rotary Screw Compressor Units.
For information about the functions of the
Quantum
control
panel, communications, specifications, and wiring diagrams,
see publication series S90-010 O, M, CS, and E90-010 SPC.
It is most important that these units be properly applied to
an adequately controlled refrigeration system. Your authori-
zed Frick representative should be consulted for his expert
guidance in this determination.
Proper performance and continued satisfaction with these
units is dependent upon:
CORRECT INSTALLATION
PROPER OPERATION
REGULAR, SYSTEMATIC MAINTENANCE
To ensure correct installation and application, the equipment
must be properly selected and connected to a properly de-
signed and installed system. The Engineering plans, piping
layouts, etc. must be detailed in accordance with the best
practices and local codes, such as those outlined in ASHRAE
literature.
A refrigeration compressor is a VAPOR PUMP. To be certain
that it is not being subjected to liquid refrigerant carryover it
is necessary that refrigerant controls are carefully selected
and in good operating condition; the piping is properly sized
and traps, if necessary, are correctly arranged; the suction
line has an accumulator or slugging protection; that load
surges are known and provisions made for control; operat-
ing cycles and defrosting periods are reasonable; and that
high side condensers are sized within system and compres-
sor design limits.
It is recommended that the entering vapor temperature to
the compressor be superheated to 10°F above the refriger-
ant saturation temperature. This assures that all refrigerant
at the compressor suction is in the vapor state.
DESIGN LIMITATIONS
The compressor units are designed for operation within the
pressure and temperature limits as shown in Frick Pub.
E70-600 SED (Check with Frick marketing dept. for avail-
ability).
JOB INSPECTION
Immediately upon delivery examine all crates, boxes and
exposed compressor and component surfaces for damage.
Unpack all items and check against shipping lists for any
discrepancy. Examine all items for damage in transit.
TRANSIT DAMAGE CLAIMS
All claims must be made by consignee. This is an ICC re-
quirement. Request immediate inspection by the agent of
the carrier and be sure the proper claim forms are executed.
Report damage or shortage claims immediately to York Re-
frigeration, Frick Sales Administration Department, in
Waynesboro, PA.
COMPRESSOR and UNIT IDENTIFICATION
Each compressor unit has 2 identification data plates. The
compressor data plate containing compressor model and
serial number is mounted on the compressor body. The unit
data plate containing unit model, serial number and Frick
sales order number is mounted on the side of the compres-
sor base.
NOTE: When inquiring about the compressor or unit, or
ordering repair parts, provide the MODEL, SERIAL, and
FRICK SALES ORDER NUMBERS from these data plates.
UNIT DATA PLATE
COMPRESSOR DATA PLATE
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