15
COMPRESSOR DESIGN PRESSURES
Compressor Requirements
The compressor is designed to meet the UL and ASHRAE safety
code for refrigeration compressors. The manufacturing facilities
for the compressor conduct pressure burst tests in accordance with
ASHRAE-15, UL safety codes, and the Pressure Equipment
97/23/CEE directive.
Design Pressures
PRESSURE RELIEF VALVE
The internal relief valve is designed to open when the pressure
differential between suction and discharge pressure is greater than
27.6 bar (400 psid) for R-134a, R-1234ze, or R-513A. The valve
will close and seal again after the pressure difference falls below
the set value. If the valve does not fully reseal after opening, high-
er discharge temperatures may result.
HYDROSTATIC DESIGN PRESSURES
The design pressures for the compressor castings are listed in
Table 8.
NOTE: All pressures listed are gage pressures. Add 14.7 psi (0.1 MPa) to
obtain absolute pressure, if necessary.
Table 7 — LED Fault Description
FAULT DESCRIPTION
LED INDICATION
(OUTPUT#4)
OUTPUT #5
COMPRESSOR
MANUAL RESET
REQUIRED
HIGH DISCHARGE
TEMPERATURE TRIP
Solid red
Opens/De-energized
OFF
Yes
HIGH MOTOR
TEMPERATURE TRIP
Constant blinking
Opens/De-energized
OFF
Yes
COMPRESSOR OIL TRIP
One blink and 2-second
pause
Opens/De-energized
OFF
Yes
FAULTY SUCTION
TRANSDUCER/THERMISTO
R SENSOR
Two blinks and 2-second
pause
Opens/De-energized
OFF
Yes
FAULTY MOTOR
TEMPERATURE
THERMISTOR
Three blinks and 2-second
pause
Opens/De-energized
OFF
Yes
FAULTY DISCHARGE
TEMPERATURE
THERMISTOR
Four blinks and 2-second
pause
Opens/De-energized
OFF
Yes
FAULTY DISCHARGE
TRANSDUCER
Five blinks and 2-second
pause
Opens/De-energized
OFF
Yes
Table 8 — Compressor Design Pressures
PRESSURE TYPE
APPLICATION
DISCHARGE
ECONOMIZER
SUCTION
HYDROSTATIC STRENGTH (BURST)
TEST PRESSURE
R-134a
R-1234ze
R-513A
1520 psig (10.5 MPa)
820 psig (5.7 MPa)
440 psig (3 MPa)
PROOF TEST PRESSURE
405 psig (2.8 MPa)
MAXIMUM OPERATING PRESSURE
304 psig (2.1 MPa)
130 psig (0.9 MPa)
61 psig (0.4 MPa)
228 psig (1.6 MPa)
94 psig (0.7 MPa)
42 psig (0.3 MPa)
LEAK TEST PRESSURE
305 psig (2.1 MPa)
UL 60335-2-34
DESIGN PRESSURE
186 psig (1.3 MPa)
N/A
88 psig (0.6 MPa)
136 psig (0.9 MPa)
61 psig (0.4 MPa)
Summary of Contents for 06ZCE1H3AA06013
Page 3: ...3 Fig 2 Compressor Physical Data and Connections 06ZC Frame 1...
Page 4: ...4 Fig 2 Compressor Physical Data and Connections 06ZC Frame 1 cont...
Page 5: ...5 Fig 3 Compressor Physical Data and Connections 06ZF Frame 2...
Page 6: ...6 Fig 3 Compressor Physical Data and Connections 06ZF Frame 2 cont...
Page 7: ...7 Fig 4 Compressor Physical Data and Connections 06ZJ Frame 3...
Page 17: ...17 Fig 13 Compressor Connection Details Fig 14 Sample Compressor Motor Voltage Curves...
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