
31
Note:
Before using oil drain valve, the compressor must be switched off and the refrigerant must be recovered completely to avoid
dangerous leakage of refrigerant which threats the environment.
2.13 Solenoid valve
Figure Solenoid valve
Degree of protection
IP 67
Ambient temperature
-40
℃
~+65
℃
Elec. Power
DC
Pn (hot)
8W
P (cold) 20°C
9W
AC
Pn (holding)
8W
Attraction cold
9W
Nominal voltage
6 to 110 VDC
12 to 240 VAC
Voltage tolerance
± 10 % of the nominal voltage
2.14 Power Supply
1.
Limitation of power supply
a.
Voltage limitation b. Frequency :
Long-term running: rated voltage ±5% Rated frequency ±2%
Instant running: rated voltage ±10%
Note:
1)
In the region where the electricity power is unstable, install an additional hi-low voltage protector with ± 5% tolerance of
normal voltage to ensure safe operating of the compressor.
2)
Other than power supply cable, cables must be located at the safety zone.
2.
Unbalanced voltages :
Unbalanced voltages usually occur because of variations in the load. When the load on one or more of the phases are different from
the other(s), unbalanced voltages will appear. This can be due to different impedances, or type and value of loading in each phase.
Unbalanced voltages can cause serious problems, particularly to the motor.
NEMA defines voltage unbalance as follows :
(maximum voltage deviation from average voltage)
(average voltage)
Summary of Contents for ExP Series
Page 1: ...1 ...
Page 6: ...6 1 4 ATEX code description II 2 G c IIB T4 II 2 G Ex d IIB T4 Gb ...
Page 8: ...8 RC2 180 ExP A B RC2 200 ExP A ...
Page 9: ...9 RC2 200 ExP B RC2 230 ExP A B UNIT SI mm Imperial in ...
Page 10: ...10 RC2 260 ExP A B SI mm Imperial in UNIT RC2 300 ExP 320 ExP A ...
Page 11: ...11 RC2 300 ExP 320 ExP B RC2 310 ExP A B ...
Page 12: ...12 RC2 340 ExP 370 ExP A RC2 340 ExP 370 ExP B ...
Page 13: ...13 RC2 410 ExP A B RC2 470 ExP A ...
Page 14: ...14 RC2 470 ExP B RC2 510 ExP A B ...
Page 15: ...15 RC2 550 ExP A RC2 550 ExP B ...
Page 16: ...16 RC2 580 ExP A B RC2 620 ExP A B ...
Page 17: ...17 RC2 710 ExP A RC2 710 ExP B ...
Page 18: ...18 RC2 790 ExP A RC2 790 ExP B SI mm Imperial in UNIT ...
Page 19: ...19 RC2 830 ExP A RC2 830 ExP B ...