070.750-IOM2 (JAN 21)
Page 9
HPS 273 ROTARY SCREW COMPRESSOR
INSTALLATION
Installation
Rigging and handling
You can move the compressor with rigging, using a crane
or forklift, by hooking into the two lifting rings at each end
of the main housings. Only use the compressor lifting rings
to lift the compressor itself.
Figure 5: Lifting rings
Callout
Component
A
Lifting rings
Foundation
Each HPS Rotary Screw Compressor is shipped mounted
on a wooden skid. Remove before installing the unit.
Caution
Allow proper spacing for servicing (refer to Dimen-
sional Outline Drawing).
The first requirement of the compressor
foundation is that
it must be able to support the weight. The weights of the
HPS 2709 and HPS 2712 assemblies respectively are 2132
kg (4700 lb) and 2241 kg (4940 lb).
Screw compressors are capable of converting large quan-
tities of shaft power into gas compression in a relatively
small space. The compression process creates relatively
high frequency vibrations that require sufficient mass
in the base to effectively dampen them. Refer to FRICK
070.210-IB, Screw Compressor Foundations
.
The best insurance for a trouble-free installation is to
firmly anchor the compressor to a suitable foundation
using proper bolting and by preventing piping stress from
being imposed on the compressor. After rigging the com-
pressor into place, you must shim its feet to level it. There
must be absolutely no stresses transferred to the com-
pressor body due to bolting of the feet and flanges.
In any screw compressor installation, support suction and
discharge lines in pipe hangers, preferably within 2 ft (0.61
m) of vertical pipe run, so that the lines won’t move if dis-
connected from the compressor. See
for allowable
flange loads.
HPS 273 compressors are designed to be driven with an
open drive, foot-mounted motor. The rotor and bear-
ing design set limitations must not be exceeded (refer
to CoolWare). Refer to
090.040-O, Quantum HD Control
Panel
for additional information on setpoint limits.
Outline dimensions
Find complete dimensions and connection information on
the outline drawing, which you can request by contacting
Johnson Controls-Frick Sales. See
Holding charge and storage
Every HPS 273 compressor is pressure and leak tested at
the Johnson Controls–Frick factory and thoroughly evacu-
ated and charged with dry nitrogen to ensure its integrity
during shipping and short-term storage before installation.
Keep all compressors in a clean, dry location to prevent
corrosion damage. For compressors stored for more than
two months, check their nitrogen charge periodically.
See
for complete instructions and
refer to
020.050-W Limited Warranty Screw Compressor
Purchased for Long-Term Storage
for FRICK Bare Screw
compressors.
Warning
Holding-charge shipping gauges (if mounted) are
rated for 2.1 bar (30 psig) and are for checking the
shipping charge only. They must be removed before
pressure testing and operating the system. Failure to
remove these gauges may result in catastrophic fail-
ure of the gauge resulting in serious injury or death.
Access valves are bronze and they must be replaced
with steel plugs when package is assembled.
Caution
This equipment has been pressurized with nitrogen
gas. Temporary valves and gauges have been in-
stalled.
1. Relieve pressure before opening lines or making
field connections.
2. Remove charging valves or gauges be pressurizing
system.
3. Refer to installation operation and maintenance
manual for additional information.
Escaping gas may cause injury.