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HPS Rotary Screw Compressor Units
070.700-IOM (MAR 21)
Page 3
General Information
General Information
Preface
This manual describes the installation, operation, and
maintenance procedures of Frick HPS Rotary Screw
Compres sor Units.
For information about the functions of the Quantum
™
HD
control panels, communications, specifications, and wiring
diagrams, see publication series
090.040-O, 090.040-M,
090.040-CS
, and
090.040-SPC
.
It is most important that these units be correctly applied
to an adequately controlled refrigeration system. Consult
your authori zed Frick representative for their expert guid
-
ance in this determination.
Performance and continued satisfaction with these units
depends on the following factors:
• Correct installation
• Correct operation
•
Regular, systematic maintenance
To ensure correct installation and application, select
the appropriate equipment and connect to a correctly
designed and installed system. The engineering plans,
piping layouts, and other system design materials 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 ensure
that working fluid in the liquid state is not being ingested,
ensure the following points:
•
Select controls carefully. Ensure they are in good oper
-
ating condition.
•
Correctly size piping and arrange
traps, if they are
necessary.
• Check that the suction line has an
accumulator or slug
-
ging protection.
•
Know the load surges and make provisions for control.
•
Check that operating cycles and standstill periods are
reasonable.
•
Size high side components in the system and compres
-
sor design limits.
It is best practice to superheat the entering vapor tem
-
perature to the compressor to 10°F, or 5.6°C, above the
refriger ant saturation temperature. This ensures 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,
which are specified
by Johnson Controls-Frick and the Johnson Controls-Frick
selection software CoolWare™.
Job inspection
Immediately upon delivery examine all crates, boxes and
exposed compressor and com ponent surfaces for dam age.
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
requirement. Request immediate inspection by the agent
of the carrier and be sure the correct claim forms are
execut ed.
Report damage or shortage claims im mediately to Johnson
Controls Inc., Frick Sales Ad ministration Depart ment, in
Waynes boro, PA.
Compressor and unit identification
Each compressor unit has 2 identifica tion data plates. The
unit data plate in
containing the unit model, serial
number, and Frick sales order number, mounted on the
side of the Quantum
™
HD control panel. The compressor
data plate in
contains the compressor model and
serial number, mounted on the compressor body.
Indicates an imminently hazardous situation that, if not avoided, results in death or serious injury.
Indicates a potentially hazardous situation or practice that, if not avoided, results in death or
serious injury.
Safety precaution definitions
Indicates a potentially hazardous situation or practice that, if not avoided, results in damage to
equipment and/or minor injury.
Indicates an operating procedure, practice, or portion thereof that is essential to highlight.
Warning
Caution
Danger
Notice
Figure 1: Unit data plate