Frick HPS 2709, Установка, эксплуатация и обслуживание, Страница: 4 / 24

070.750-IOM2 (JAN 21)
Page 4
HPS 273 ROTARY SCREW COMPRESSOR
INSTALLATION - OPERATION - MAINTENANCE
The compressor model number designates the size of the
compresso
r and its Vi configuration.
Example: HPSS 2709 A
HPSS 27 09 A
Model/series
HPS = High-pressure screw
Bearing arrangement
S = Single radial bearings (273 only)
D = Double radial bearings (273 only)
Rotor diameter
27 = 273 mm
Rotor length designation
09
10
12
Vi
configuration
A = 2.2 – 5.0
B = 1.7 – 3.0
C = 1.3 – 1.96
Rotor length ÷ diameter x 10
Rotary screw compressor serial numbers identify the
factory that the compressor was manufactured in and its
build date. They are defined by the following information:
Example: 1024 0 A 9 0000015 Z
Plant Decade Month Year Global
Seq no. Additional
Remarks
1024 0 A 9 0000015 Z
Month:
A = JAN, B = FEB, C = MAR, D = APR, E = MAY, F = JUN,
G = JUL, H = AUG, K = SEP, L = OCT, M = NOV, N = DEC
Additional Remarks:
R = Remanufactured
R1 = Rebuild
R2 = Rebuild Plus
Z = Deviation from base configuration.
The nameplates in Figure 2 show what refrigerants are
compatible with the compressor as manufactured.
Figure 2: Refrigerant nameplates
Table 1: Geometrical swept volume
HPS
rpm HPS 2709 HPS 2712 2%
2709/2712
m
3
/h (cfm) m
3
/h (cfm) Lpm
1450 676 (398) 901 (530) 133/177
1750 816 (480) 640 (1088) 160/213
2950 1375 (809) 1833 (1079) 270/360
3550 1655 (974) 2206 (1298) 325/433
Note: 2% is oil flow as a percentage of swept volume.
Table 2: Compressor long-term storage log
Model Serial no. Compressor, motor oil
pump and refrigerant pump
shaft rotation 1 1/2 turn Rotor
housing
charge Charge
added Visual
inspec-
tion Charge Checked by Date