RWB II ROTARY SCREW COMPRESSOR UNITS
GENERAL INFORMATION
S70-210 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
RWB II Rotary Screw Compressor Units.
For information about the functions of the electrical control
panel, communications, specifications, and wiring diagrams,
see S90-010 M (Quantum panel) or S70-200 OM (Plus
panel).
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; operating
cycles and defrosting periods are reasonable; and that high
side condensers are sized within system and compressor
design limits.
It is recommended that the entering vapor temperature to the
compressor be superheated to 10°F above the refrigerant
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.
E70-200 SED.
JOB INSPECTION
Immediately upon arrival examine all crates, boxes and
exposed compressor and component surfaces for damage.
Unpack all items and check against shipping lists for any
possible shortage. 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 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 motor
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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