3
LEGEND
Pressure Relief Valve
A sufficient number of pressure relieving devices and/or
pressure relief valves, having capacity deemed adequate for the
system, may need to be provided. They must be located such that
no stop valve is located between the relief valve and the section
of the system being protected. The maximum allowable pressure
for the high side of the 06CC 50-99 cfm compressors is
464.7 psia (32.0 bar) and for the low side is 299.7 psia (20.6 bar).
The 06CC 50-99 cfm compressors have two factory-installed in-
ternal pressure relief valves. The first relief valve is located in the
valve plate and will start-to-discharge at a differential pressure
(interstage to suction) of 200 psid (13.8 bar), ±10%. Once this
valve has relieved at the specified pressure, it should remain ful-
ly functional, but it may relieve at a lower pressure. If this pres-
sure goes below 3% of its set point (175 psid, 12.0 bar), then the
valve should be replaced.
The second relief valve is located in the crankcase body under
the center head valve plate and will start-to-discharge at a differ-
ential pressure (discharge to midstage) of 400 psid (27.6 bar),
±3%. Once this valve has relieved at the specified pressure, it
should remain fully functional, but it may relieve at a lower pres-
sure. If this pressure goes below 10% of its set point (349 psid,
24.1 bar), then the valve should be replaced.
Connection Points
Fig. 1 — 06CC 50-99 cfm Compressor (Pump End)
Table 3 — Approved Oils
MANUFACTURER OIL TYPE BRAND NAME
For HFC Refrigerants
Totaline POE P903-1701
Castrol POE E68
ICI Emkarate POE RL68H
Lubrizol Lubrikuhl POE 2916S
Texaco Capella POE HFC 68NA
For HCFC and CFC Refrigerants
Totaline MO P903-0101
Witco Suniso MO 3GS
IGI Petroleum MO Cryol150
Texaco Capella MO WFI32-150
Totaline AB P903-2001
Shrieve Chemicals AB Zerol150
AB — Alkybenzene Oil
MO — Mineral Oil
POE — Polyolester-Based Oil
A E
C
U
J, L
B
F
G
H
J, L
K
K
M N
06CC, 2-stage, 50-99 cfm
T
V
T
W S D SY
W
X
SR S
A
B
C
D
E
F
G
H
J
K
L
M
N
R
S
T
U
V
W
X
Y
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Nameplate Location
Suction Service Valve
Discharge Service Valve
Low Pressure Connection
High Pressure Connection
Interstage Pressure Connection
Oil Pressure Mechanical Sensor
Oil Pressure Connection
Low Side Oil Pressure Difference
Oil Level Sightglass
Oil Sump Fill Port
Oil Sump Drain Port
Crankcase Heater
Discharge Gas Temperature Sensor
Cylinder Head Fan Studs
1st Stage Cylinder Head
2nd Stage Cylinder Head
Suction Manifold
Interstage Manifold
Desuperheating Liquid Injection
Vapor Injection Flange
LEGEND
Motor End
Pump End