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1.Spray with nitrogen gas during brazing (Strictly abide by).
2.Use the deoxidized phosphorus copper pipes that are clean both inside and outside.

After the piping construction work, conduct the air-tight test as below:

1.Install and insulate the bulb according to the instruction. Make it sure minimum 5K superheat in all conditions. 

Install angle of Bulb

Pipe diameter less than 

φ

25.4(1 inch)

upper position

Pipe diameter more than 

φ

25.4(1inch)

Lower postion 45° 

4 o'clock position

 

15

Page 

2.The superheat degree will become less in winter season, adjust the expansion valve to make sure minimum 5K
superheat degree.

Expansion valve

Since the unit is composed of highly-precise components, any contaminants mingled into will damage the unit, with gas leakage,
capacity reduction, even abrasion and burn.

The bulb package installation method is as shown in the
figure.  The bulb needs to be installed horizontally.

The quality of the design and construction work of refrigerant piping has great impact on the performance and reliability of Condensing unit. Observe precautions
given below in the case of design and construction work.
The compressor is cooled by liquid injection, if the refrigerant charge volume is not enough, the cooling effect will be decreased due to gas bubble in liquid line, it
will result in high temperature of compressor. Do not operate the unit under lack of refrigerant conditions.

Air-tight Test

After piping construction work, before heat insulation work

Size of refrigerant piping

Do not contaminate the unit with dust, metallic powder, oxidized scale, etc.

Refrigerant Piping Work

R22

2.8MPa

1.4MPa

R404A

2.84MPa

1.75MPa

Suction Line

5/8"

φ

15.88

3/4"

φ

19.05

3.When cutting or deburring a copper pipe, do not allow chips to contaminate the pipe. The customer should install the
suction filter on the suction line by themselves.

Refrigerant

High Pressure Side

Low Pressure Side

The sizes of piping by unit models are given as below. However, note that an optimal size shall be decided by calculating the loss of pressure in piping and the
flow rates of a refrigerant so that cooling capacity and oil return would not be affected.

Model

OCU-R Series, OCU-NR Series

Other Model

Liquid Line

3/8"

φ

9.53

3/8"

φ

9.53

45°

Insulation 
Material

Metal Fixture

Содержание OCU-R200SF

Страница 1: ...iagram 18 OCU NR200SF OCU NS600HF Refrigerant Charge 24 OCU NR200SF D OCU NS700HF Electrical Wiring Work 25 OCU NR300SF OCU NS400SF PCB Function 30 OCU NR300SF D OCU NS500SF PCB Function 30 OCU NS350H...

Страница 2: ...U NS400SF OCU S400HF OCU S600SF OCU NR300SF D OCU NS500SF OCU S400HF D OCU S350QSF D OCU NS350HF OCU NS600SF OCU S500HF OCU S400QSF OCU NS400HF OCU NS350QSF D OCU S500HF D OCU S500QSF OCU NS400HF D OC...

Страница 3: ...t The unit should be fastened at the foundation with anchor bolts The leakage of refrigerant will cause oxygen deficiency and result in death it may also cause electrical shock or fire Make it sure to...

Страница 4: ...lectrical shock Page During pump down operation stop the compressor before taking off the piping Removal of the piping while compressor is running will mix the air in the system cause abnormal high pr...

Страница 5: ...ge may cause oxygen deficiency and personnel injury Do not install the unit in a place where the flammable gases may leak The leaked flammable gas accumulating surrounding of the unit may cause fire F...

Страница 6: ...ock or fire The use of a deteriorated platform may lead to the collapse or fall of the unit thus causing injury Climbing or placing objects on the unit may result in the collapse or fall of the unit t...

Страница 7: ...U NS350QSF D Operation Manual 1 copy Page 7 Attachment Names of Components Names of the Components Fan Motor Condenser Suction Accumulator Electric Control Box Service Valve Gas Make up solenoid valve...

Страница 8: ...600QSF OCU NS600QSF Fuse Tube 5A 250V 2 pcs for operation circuit Operation Manual 1 copy 8 Page Names of Components Names of Components Attachment Suction line Service valve Liquid Line Service Valve...

Страница 9: ...ll 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 U...

Страница 10: ...ating temp C 10 Page Tips on the Effective Use of the Unit For Economical Use Compressor sump temperature analysis After the compressor runs smoothly please make sure that the operation condition of c...

Страница 11: ...within 1 2 minutes B Apply the pump down cycle to avoid refrigerant migration in long period stopping 5 Please install the filter dryer and sight glass horizontally behind liquid line service valve w...

Страница 12: ...ion For the installation of the equipment select a location where it is easy to do construction work and to perform daily operation and maintenance Page Install the unit so that the unit would not be...

Страница 13: ...ns near the air outlet side Examples of Installation When there are no obstructions near the air outlet side and above and above and above and above air air flow 180mm and above 2000mm and above 850 h...

Страница 14: ...Page Face to face Face to back Installation Examples of Installation Double Stack Installation Back to Back Installation 600mm and above 3500mm and above 1000mm and above 180mm and above 150mm and abo...

Страница 15: ...of Condensing unit Observe precautions given below in the case of design and construction work The compressor is cooled by liquid injection if the refrigerant charge volume is not enough the cooling...

Страница 16: ...ll be within 20 meters Other notes Heat Insulation material Insulate the piping from evaporator to compressor Thickness of 25mm and above for refrigerator 50mm and above for freezer Liquid line soleno...

Страница 17: ...e connecting refrigeration system ensure all components clean and dry Pipes connected to unit should be flexibly structured The horizontal section of suction pipe should be inclined to the direction o...

Страница 18: ...Suction Accumulator Low pressure gas inlet pipe 15 9 Internal Welding Filter Customer oriented High pressure liquid Pipe 15 9 Internal Welding Condenser Fusible Plug Accumulator Dryer Filter Sight Gla...

Страница 19: ...ulator Fusible Plug Dryer Filter Sight Glass Liquid Injection Cooling Low pressure gas inlet pipe 19 05 Internal Welding Filter Customer oriented High pressure liquid Pipe 9 52 Internal Welding Conden...

Страница 20: ...inlet pipe 19 05 Internal Welding High pressure liquid Pipe 9 52 Internal Welding Filter Customer oriented Pressure equalizing solenoid valve Suction Accumulator Condenser Accumulator Fusible Plug Dr...

Страница 21: ...essure gas inlet pipe 19 05 Internal Welding Filter Customer oriented Dryer Filter Sight Glass High pressure liquid Pipe 9 52 Internal Welding Condenser Fusible Plug Accumulator Dryer Filter Sight Gla...

Страница 22: ...uction Accumulator Low pressure gas inlet pipe 19 05 Internal Sight Glass High pressure liquid Pipe 9 52 Internal Welding Filter Customer oriented Liquid Injection Cooling Oil Separator Oil return Tub...

Страница 23: ...iagram Condenser Liquid Injection Cooling Suction Accumulator Accumulator Fusible Plug Dryer Filter Sight Glass Low pressure gas inlet pipe 19 05 Internal Filter Customer oriented Pressure equalizing...

Страница 24: ...g is done in the liquid state from the suction line it should be done using a safety charger a liquid charging adapter or etc Refrigerant flashes off into a saturated vapor 5 Never charge liquid refri...

Страница 25: ...r source terminal of the unit In case of electricity recovery after power interruptions if all the devices including the condensing unit start up simultaneously which in turn may cause the failure of...

Страница 26: ...00SF 16 30 4 4 OCU S500SF 16 30 4 4 OCU NS500QSF 16 30 4 4 OCU S500QSF 16 30 4 4 OCU NS400SF 16 30 4 4 OCU S400SF 16 30 4 4 OCU NS400QSF 16 30 4 OCU NR200SF 10 30 4 OCU NS350QSF D 40 30 6 OCU S400QSF...

Страница 27: ...26 Page...

Страница 28: ......

Страница 29: ......

Страница 30: ...afety If the earth leakage breaker or a protection device is activated without proper alarming system and temperature management system the operation of the unit will be stopped for very long time Thi...

Страница 31: ...Models OCU S350QSF D OCU S400HF D OCU S500HF D OCU NS350QSF D OCU NS400HF D OCU NS500HF D 28 Electrical Wiring Project Electrical Diagram Page R...

Страница 32: ......

Страница 33: ...300SF OCU NS500SF OCU S350HF OCU S600SF OCU NS350HF OCU NS600SF OCU S400HF OCU S400QSF OCU NS400HF OCU NS400QSF OCU S500HF OCU S500QSF OCU NS500HF OCU NS500QSF OCU S600HF OCU S600QSF OCU NS600HF OCU N...

Страница 34: ...ormal the fault code indicating the abnormal reason can be seen Display OCU NS350QSF D OCU S700HF OCU NS700HF OCU NS500HF D OCU S600HF OCU NS600HF OCU NS400HF D OCU S600QSF OCU NS600QSF OCU S500HF OCU...

Страница 35: ...ser is dirty Clean the condenser Globe valve or other valve forgot to open Confirm valve opening status one by one according to system diagram The compressorrunning beyond the range Reconfirm the matc...

Страница 36: ...ompressor and performance The low voltage switch must be setted to ensure that the compressor is not operating under negative pressure R22 30 22 Freezer Ice Cream 45 40 0 08 0 08 0 00 R404A Ref Showca...

Страница 37: ...or the presence of superheat indicates the complete evaporation of the liquid refrigerant due to the nature of the refrigerant However a higher superheat will increase the discharge temperature discha...

Страница 38: ...Check the fan motor Color of the moisture indicator Replace if it is yellow WET Replace it if there is abnormal sound heavy bearing or oil leakage Check if there is no color change nor insulation det...

Страница 39: ...leakage accidents please make sure to put all parts that are removed during the check service e g cover electrical part etc back to their original places 8 Prevention of idle heating of crankcase hea...

Страница 40: ...pipeline process design re set up the pipeline Low suction pressure of compressor Abnormal evaporator Confirm whether the evaporator is too small or whether the evaporator is frosted whether the evapo...

Страница 41: ...Period Compressor overload operation Since the load is beyond the operating range of the unit check the value of low pressure and do adjustment Unit in contact with surrounding parts Make sure the con...

Страница 42: ...ction devices attached are not applied Failure due to incomplete operating environment and maintenance inspection In the case of an accident or a breakdown caused by the installation of the unit in an...

Страница 43: ...designated earth breaker 7 In the case of an accident or breakdown caused by the work or usage that is not complying with the standard installation location operation conditions coordination maintenan...

Страница 44: ...pliance with the instructions and use of non designated parts In addition no warranty is given to the product failure occurred by the aboved situations Tel D00 2 L004 005 00 3 Printed in China Ver 201...

Страница 45: ...oltage Rates Installation Tilt ON OFF Cycle min Installation Location OCU NR200SF OCU NR200SF D OCU NR300SF OCU NR300SF D OCU NS350HF OCU NS400HF OCU NS400HF D OCU NS500HF OCU NS500HF D Remark a Unles...

Страница 46: ...5 15 10 0 008 0 42 0 27 0 73 OCU NS600HF OCU NS700HF OCU NS400SF OCU NS500SF OCU NS600SF OCU NS350QSF D OCU NS400QSF OCU NS500QSF OCU NS600QSF efer to Gauge Pressure MT and LT Scroll Unit MT Scroll U...

Страница 47: ......

Страница 48: ......

Страница 49: ...MT Scroll Unit...

Страница 50: ...2nd trip E18 Inverter communication anomaly E30 Condenser maintenance alarm E33 Suction gas overheat alarm E32 High pressure anomaly Discharge gas temperature sensor anomaly Low pressure sensor anomal...

Страница 51: ...or when compressor stops Suction gas temperature increased to 24 C or higher for 30 minutes Except for when compressor stops High pressure sensor became abnormal open circuit condition Suction gas tem...

Страница 52: ...low pressure connector LP 2 Check the output voltage of the low pressure sensor Refer to Method of Checking Sensor Characteristics 1 Check the connection of the control PCB 3P2 high pressure connector...

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