Panasonic OCU-R200SF, Руководство по обслуживанию

Страница: 9 / 52

Application for medium and low temperature scroll units:
：
Please select the unit model reasonably according to the operating temperature.
9 Page
Nominal working conditions: evaporation temperature -7 ° C, suction temperature 18 ° C, condenser inlet air temperature (dry
bulb temperature) 32 ° C.
Under the system that operates at evaporating temperature about -5 ℃ for long time, low temperature make-up gas unit,which
runs in the high load condition of compressor easily resulting in the compressor overload and burn-out.The compressor motor of
the low-temperature make-up gas unit is configured according to the low-temperature load and the motor capacity is smaller than
that of the medium-temperature compressor with the same number of HP, so it is easier to burn out when overload occurs.
The cooling capacity generated by the low-temperatur gas make-up unit in the middle temperature state (-5°C~-15°C) is
equivalent to the cooling capacity of medium-temperature units with the same HP (in the medium-temperature state, the
compressor will be overloaded, and make-up gas is controlled by discharge temp) . As the evaporation temperature decreases, the
discharge gas temperature increases, and the amount of gas supplementation gradually increases. When the evaporation
temperature is below -25 °C, the supercooling effect is manifested.
Application Standards
Technical Specifications
Precautions for Model Selection
The unit shall be operated within below range
Refer to the unit nameplate for the nominal cooling capacity, input power, performance factor, operating coefficient, and
operating current of the unit.
Applicable
Model
Unit
OCU-R200SF
OCU-R300SF
OCU-S350HF
OCU-S400HF
OCU-S400HF-D
OCU-S500HF
OCU-S500HF-D
OCU-S600HF
OCU-S700HF
OCU-S400SF
OCU-S500SF
OCU-S600SF
OCU-S350QSF-D
OCU-S400QSF
OCU-S500QSF
OCU-S600QSF
OCU-NR200SF-D
OCU-NR300SF-D
OCU-NR200SF
OCU-NR300SF
OCU-NS400SF
OCU-NS500SF
OCU-NS600SF
OCU-NS350QSF-D
OCU-NS400QSF
OCU-NS500QSF
OCU-NS600QSF
OCU-NS350HF
OCU-NS400HF
OCU-NS400HF-D
OCU-NS500HF
OCU-NS500HF-D
OCU-NS600HF
OCU-NS700HF
Refrigerant
Evaporating Temp.
℃
-40
～
-5 -15
～
10 -40
～
-5 -40
～
-5 -40
～
-5 -15
～
10
Suction Pressure MPa a)
0.005
～
0.320
0.25
～
0.62 0.005
～
0.25 0.008
～
0.42 0.008
～
0.42 0.27
～
0.73
Suction Temp.
℃
Suction Superheat K
Condensing Temp.
℃
Discharge Pressure MPa
Discharge Temp.
℃
Oil Temp.
℃
Ambient Temp.
℃
Power Source V
Operation Circuit V
Unbalanced
Voltage Rates
%
Installation Tilt °
ON-OFF Cycle min
Installation Location
MT and LT
Rotor Unit
MT Scroll Unit
MT and LT Rotor
Unit
MT and LT Scroll
Unit
30 ～ 55
MT Scroll Unit
1.33 ～ 2.78
MT and LT Scroll
Unit
Remark
：
a). Unless otherwise specified
，
all pressures refer to Gauge Pressure.
18 and below （ according to the evaporation tempeture, the best suction superheat range is from
8~15K （ on the side of unit ）
R22 R404A
Outdoor installation
Items
3 and below
10(minimum duration for start or stop is 3 ）
Single phase 220±10%
2 and below
30 ～ 55
1.09 ～ 2.50
-7 ～ 48 （ according to the data on the catalogue ）
Three phase 380±10% （ singe phase 220±10%}
115 and below
95 Max
（
Ambient temp10K and over
）