Panasonic OCU-CR1000VF8A Service Manual
Outdoor type refrigeration unit (non-fluorocarbon refrigeration unit with co2 refrigerant)
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Summary of Contents for Panasonic OCU-CR1000VF8A
- Page 1 Outdoor Type Refrigeration Unit (Non-fluorocarbon Refrigeration Unit with CO Refrigerant) Engineering Service Manual Model No. OCU-CR1000VF8A OCU-CR1000VF8ASL...
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Page 2: Table Of Contents
Table of Contents T able of Contents Service Piping (Optional Accessories) Service Valve Operation Method Service Pipe Connection/Disconnection Method Evacuation Mode Refrigerant Releasing Procedure Airtight T est Procedure Vacuum Pump Attachment and Evacuation Procedure . . . 10 Refrigerant Charging Procedure Gas Leak Repair Procedure Compressor Replacement Procedure Oil Replenishing Procedure... -
Page 3: Service Piping (Optional Accessories)
Service Piping (Separately sold components) Service piping components are required when connecting the refrigeration unit and vacuum pump, cylinders, etc. during installation. Use these components to connect to locally procured components. Service piping (SPK-TU125) Locally procured components SPK-TU125 has a bent part here. Service/Maintenance connection Joint valve (Swagelok, etc.) Joint (Swagelok, etc.) -
Page 4: Service Valve Operation Method
Service Valve Operation Method 1. Location of service valves and access ports Front of refrigeration unit Detail of access ports location Access port of low pressure service valve Access port of high pressure Location of service valves service valve 2. Method of operating service valves The service valves fall into two categories types as follows. -
Page 5: Service Pipe Connection/Disconnection Method
Service Pipe Connection/Disconnection Method 1. Preparation for attachment of the service piping 1) To front seat service valves, turn the stem of the high pressure and low pressure service valves clockwise as far as possible. Access port is closed Front seated positon Turn the stem fully clockwise 2) Attach a packing to the service piping (2 places). - Page 6 Service Pipe Connection/Disconnection Method 3. Fastening the service piping Fasten the nuts by hand up to the condition shown below, and then fasten them with a tool. Fastening torque of 13 1 N•m is recommended for the nuts. Note: Fastening the nut too tight may deform the packing. Low pressure service valve High pressure...
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Page 7: Evacuation Mode
Evacuation Mode 1. Evacuation mode In the evacuation mode, fully open the electronic expansion valve and solenoid valve in the refrigeration unit. Note: If the refrigeration unit is not set to the evacuation mode, the electronic expansion valve and solenoid valve in the unit do not open, thus leading to incomplete the evacuation. 2. -
Page 8: Refrigerant Releasing Procedure
Refrigerant Releasing Procedure 1. Preparation for refrigerant releasing 1) Check that the access ports of the high pressure and low pressure service valve have been closed. (The front seated position) 2) Attach the service piping with the joint valve in "Closed" condition. 3) Fasten the nuts by hand up to the condition shown below, and then fasten them with a tool. -
Page 9: Airtight Test Procedure
Airtight Test Procedure (Execute this test after competing piping work and airtight test but before starting heat insulation work) Make sure to close the vacuum valve of CO manifold gauge set. Consider special local regulations and consider Installation of all Caution equipment have to be in accordance to pressure directive 2014/68/EU and European norm EN378. -
Page 10: Vacuum Pump Attachment And Evacuation Procedure
Vacuum Pump Attachment and Evacuation Procedure Evacuation should be performed after completing the airtight test. Caution Please follow local regulations and EN378. 1. Vacuum pump attachment and piping connection 1) Connect the joint valve of the service piping (SPK-TU125) and the manifold gauge set exclusively for CO refrigerant by using a CO charge hose or 1/4"... -
Page 11: Refrigerant Charging Procedure
Refrigerant Charging Procedure Caution Make sure to close the vacuum valve of CO manifold gauge set. 1. Preparation for refrigerant charging 1) Connect the joint valve of the service piping (SPK-TU125) and the manifold gauge set exclusively for CO refrigerant by using a CO charge hose or 1/4"... - Page 12 Refrigerant Charging Procedure 2. CO refrigerant grade Charge CO refrigerant (R744) that is compatible with the following specifications. Item Specifications Purity > 99.9% (volume) Moisture < 0.005% (volume) Total sulfur < 0.03ppm (weight) Inert gas (H , Ar) < 0.01% (volume) 3.
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Page 13: Gas Leak Repair Procedure
Gas Leak Repair Procedure 1. Gas leak position identification 1) When using a liquid type leak detector Identify the position where oil is leaking. Find gas leaks by applying the liquid type leak detector and checking for foaming. 2) When using a leak detector Identify the position where oil is leaking. -
Page 14: Compressor Replacement Procedure
Compressor Replacement Procedure 1. Preparation for compressor replacement 1) Release refrigerant in accordance with “Refrigerant Releasing Procedure”. 2) Remove the heat insulation material of the 1st stage suction pipe (cut out bundling ties). 3) Remove the anti-vibration rubber for the 1st stage and 2nd stage suction pipes (cut out bundling ties). - Page 15 Compressor Replacement Procedure Caution For safety purposes, always wear protective gear during operations. 2. Compressor removal 1) After completing the preparation for compressor replacement, cut the compressor piping at five places (1st stage suction, 1st stage discharge, 2nd stage suction, 2nd stage discharge, and oil return) by using a pipe cutter or cable cutter.
- Page 16 Compressor Replacement Procedure Caution For safety purposes, always wear protective gear during operations. 3. Service compressor installation 1) Place the service compressor in its original position, and install the securing bolt, spring washer, flat washer, and protection rubber washer, etc. (three places) Details of A Part Details of B Part Securing...
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Page 17: Oil Replenishing Procedure
Oil Replenishing Procedure Before starting the operation, perform an assessment in accordance with the Caution Installation Instructions ”Oil Level Control and Oil Addition Assessment Criteria” in “Oil Level Control Method”. 1. Turn operation switch S1 to "OFF" to stop the operation of the refrigeration unit. 2. - Page 18 Oil Replenishing Procedure 4. Set the rotary switch (knob) on the CRD2-EN-PCB to “ON“ position, and turn ON the DIP switch 13-5, and press the ▲ button to align the opening level of the oil control electronic expansion valve (MOV1) to 480 steps, and then return the rotary switch (knob) to ”Operation” position. Knob Rotary switch <Digital display example>...
- Page 19 Oil Replenishing Procedure 9. Set the rotary switch (knob) to “ON” and turn ON the DIP switch 13-5 and press the ▲·▼ button until the digital display indicates “1.oFF” and then return the rotary switch (knob) to “Operation (運転)“. <Digital display example> DIP switch SW13 Expansion valve Expansion valve...
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Page 20: Filter Dryer
Connection Filter dryer Type Model No. Model No. Diameter 15.88 mm OCU-CR1000VF8A D-155T CO-085-S You must not use a filter dryer for HFC refrigerant under any circumstances as it Caution does not meet the pressure requirement. 2. Filter dryer attachment 1) The filter dryer has an expanded tip on both ends. -
Page 21: Suction Filter
Connection Suction filter Model No. Diameter Model No. 19.05 mm OCU-CR1000VF8A S-008T You must not use a filter dryer for HFC refrigerant under any circumstances as it Caution does not meet the pressure requirement. 2. Suction filter attachment 1) Do not remove the suction filter cap until immediately before use. -
Page 22: Failure Diagnosis
Failure Diagnosis Error Code (1) When the rotary switch (knob) is at [OPERATION] position, the digital display on the control PCB alternately displays low pressure, high pressure and error code (E ***). < Error Code Table > Error Meaning Cause Correction method code (1) Investigate the cause of high pressure anomaly. - Page 23 Failure Diagnosis Error Code Error Meaning Cause Correction method code (1) Investigate the cause of unit outlet pressure anomaly. Unit outlet pressure Increased unit outlet pressure caused a (2) Check for the presence of any anomalies of the unit outlet pressure anomaly (1st to 6th unit outlet pressure anomaly.
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Page 24: Service Parts List
Service Parts List Master Part Code Part Name Quantity drawing No. 80415260R COMPRESSOR 80225205116000 PRESSURE SENSOR 81425432097000 TERMINAL BASE 80223390031000 ADHESIVE LABEL, PET 80225324291000 TERMINAL BASE 80225324306000 TERMINAL BASE 80225324307000 TERMINAL BASE 42329696010 RELAY, AC 220/240V 80105334422520 PC BOARD/W COMPNENT 80105334408520 PC BOARD/W COMPNENT 80105334411520... -
Page 25: Exploded View
Exploded View (OCU-CR1000VF8A) - Page 26 Exploded View (OCU-CR1000VF8A)
- Page 27 Exploded View (OCU-CR1000VF8A)
- Page 28 Memo...
- Page 29 If a product failure occurs by incorrect installation, the product becomes out of warranty. Sales company in EU Panasonic Corporation Panasonic Appliances Air Conditioning Europe Website: www.panasonic-europe.com (PAPAEU) Panasonic Marketing Europe GmbH Hagenauer Str.