Johnson Controls Frick NGC 100 User Manual

070.550-IOM (JUN 2016)
Page 12
NGC GAS ROTARY SCREW COMPRESSOR
INSTALLATION
HOLDING CHARGE AND STORAGE
Every NGC compressor is pressure and leak tested at the
factory and then thoroughly evacuated and charged with dry
nitrogen to ensure its integrity during shipping and short
term storage prior to installation.
All compressors must be kept in a clean, dry location to
prevent corrosion damage. Compressors that will be stored
for more than two months must have their nitrogen charge
checked periodically (see pages in GENERAL INFORMATION
for complete instructions).
WARNING
Holding-charge shipping gauges (if mounted) are rated
for 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 failure of the gauge
resulting in serious injury or death.
CAUTION
Cylinder assembly under high spring load. Consult
manual before disassembly. Improper disassembly may
cause injury due to spring tension release.
RIGGING AND HANDLING
The compressor can be moved with rigging, using a crane
or forklift, by hooking into the two lifting rings at each end
of the main housings. The compressor lifting rings shall only
be used to lift the compressor itself. See Figure 7.
Figure 7 - Lifting Rings
DEHYDRATION / EVACUATION TEST
Evacuate the system to 1000 microns. Valve off the vacuum
pump and hold vacuum for one hour.
Pass – Vacuum cannot rise more than 500 microns during
one hour hold period.
Fail – Vacuum rise is more than 500 microns during one
hour hold period. Identify and repair any system leaks.
Repeat vacuum test until requirements are met.
FOUNDATION
Each NGC Rotary Screw Compressor is shipped mounted on
a wooden skid, which must be removed prior to unit
installation.
CAUTION
Allow proper spacing for servicing (see Dimensional
Outline Drawing).
The rst requirement of the compressor foundation is that
it must be able to support the weight.
NGC 100 2900 lb NGC 300 6,700 lb
NGC 150 3150 lb NGC 400 10,000 lb
NGC 200 4400 lb NGC 450 13,200 lb
NGC 250 4800 lb
Screw compressors are capable of converting large
quantities of shaft power into gas compression in a relatively
small space. The compression process creates relatively
high frequency vibrations that require sufcient mass in the
base to effectively dampen them.
The best insurance for a trouble-free installation is to rmly
anchor the compressor to a suitable foundation using
proper bolting and by preventing piping stress from being
imposed on the compressor. Once the compressor is rigged
into place, its feet must be shimmed to level it. There must
be absolutely no stresses introduced into the compressor
body due to bolting of the feet and anges.
In any screw compressor installation, suction and discharge
lines should be supported in pipe hangers (preferably within
2 ft. of vertical pipe run) so that the lines won’t move if
disconnected from the compressor. See table for Allowable
Flange Loads.
ALLOWABLE FLANGE LOADS
NOZ. MOMENTS (ft-lbf) LOAD (lbf)
SIZE AXIAL VERT. LAT. AXIAL VERT. LAT.
NPS M
R
M
C
M
L
P V
C
V
L
1 25 25 25 50 50 50
1.25 25 25 25 50 50 50
1.5 50 40 40 100 75 75
2 100 70 70 150 125 125
3 250 175 175 225 250 250
4 400 200 200 300 400 400
5 425 400 400 400 450 450
6 1,000 750 750 650 650 650
8 1,500 1,000 1,000 1,500 900 900
10 1,500 1,200 1,200 1,500 1,200 1,200
14 2,000 1,800 1,800 1,700 2,000 2,000
COMPRESSOR OIL
WARNING
DO NOT MIX OILS of different brands, manufacturers,
or types. Mixing of oils can cause excessive oil foam-
ing, nuisance oil level cutouts, oil pressure loss, gas or
oil leakage and catastrophic compressor failure.
NOTICE
The Frick oil recommended for the application is the
best suited lubricant for the conditions specied at the
time of purchase. If there is any doubt due to the gas
composition, operating pressures, or temperatures,
refer to Johnson Controls-Frick publications 160-810
NGO and E160-802 SPC for guidance.
OIL FILTER(S)
Use of lter elements other than Johnson Controls - Frick
must be approved in writing by Johnson Controls - Frick
engineering or a warranty claim may be denied. Typical oil
lter specication β
5
= 75 according to ISO 4572 is required
to obtain the recommended oil cleanliness class 16/14/11
according to ISO 4406.

Johnson Controls Frick NGC 100 Specifications

General

Brand	Johnson Controls
Model	Frick NGC 100
Category	Air Compressor
Language	English