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LG RCWFL Series, Installation Manual

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www.lge.com

INSTALLATION MANUAL

Model : RCWFL Series(100 ~ 300 RT)

Water-cooled Oil Free
Inverter Centrifugal Chiller

Be sure to read the precautions for safety before installation and use it correctly.
The content is to ensure the safety of users and to prevent property damage.
Keep the instruction manual in a place that is easily accessible to all users.
Only authorized persons can use the product.

ENGLISH

P/NO : MFL68928605 (Rev 0)

Summary of Contents for RCWFL Series

Page 1: ... Be sure to read the precautions for safety before installation and use it correctly The content is to ensure the safety of users and to prevent property damage Keep the instruction manual in a place that is easily accessible to all users Only authorized persons can use the product ENGLISH P NO MFL68928605 Rev 0 ...

Page 2: ...to this page in case you need it to prove the date of purchase or for warranty purposes Write the model number and the serial number here Model number Serial number You can find them on a label on the side of each unit Dealer s name Date of purchase ...

Page 3: ...ts a possibility of a death or a serious injury CAUTION This mark represents a possibility of a loss or damage of a property only Marks used in this instruction manual have meanings as shown below Strictly prohibited Must follow the instruction 1 1 WARNING Certified engineers should do electrical works following Technology standard or wiring standard of an electrical in stallation Interior wiring ...

Page 4: ...ct the control part Especially do not clean the control part with water This may cause fire and product failure Make sure to request to the installation specialty store when the product is immerged This may cause fire and electric shock Make sure to use an exclusive cable of the product This may cause fire and electric shock Do not fill the product with refrigerants other than the designated refri...

Page 5: ...nt through the refrigerant discharge valve inside of a building The outlet of the discharge valve should be outside of a building Leakage of the refrigerant in a closed area may remove the oxygen and cause suffocation Closed or low ceiling areas need proper ventilation Inhaling the refrigerant is harmful to human health and may cause an irregular heartbeat unconsciousness and death Misuse can be f...

Page 6: ...n power may cause serious damage Leave the main power on while operating Do not turn off the main power right after stopping operation Make sure to wait for more than 5 minutes before turning off the main power Otherwise this may cause leak or other problems Do not operate the product with the panel or the safety devices removed Rotating high temperature or high pressure parts may cause safety acc...

Page 7: ...l board and short circuit of the other wirings may cause damage to the electrical module or parts Flow should remain within the designed range and it should be handled cleanly It guarantees the performance of the product and reduces a possibility of tube damage due to corrosion precipi tate moss etc LG does not take responsibility for damage of the Chiller caused by unhandled or inadequately handl...

Page 8: ... Installation 20 6 4 4 Actions for the Refrigerant Leak age 21 7 PIPING INSTALLATION 21 7 1 Considerations when Installing Water Piping 22 7 2 Location of the Cold Water Cooling water Piping 23 7 3 Order of Fastening the Water Piping Bolts 24 7 4 Installing Refrigerant Gas Discharge Pipe of Safety Valve 24 7 4 1 Installation by the High Pressure Gas Safety Law Follow the regula tion of each region...

Page 9: ...tion of inlet outlet of the cold water cooling water and some piping differ based on models and customer specifications check the approved drawing matching with the site for the details 1 2 3 4 6 11 8 9 10 7 12 13 5 14 1 Compressor 2 Terminal box for compressor motor 3 Evaporator 4 Safety valve 5 Air vent for cold water 6 Drain for cold water 7 Air vent for Cooling water 8 Drain for Cooling water ...

Page 10: ...119 6 4300 3920 400 300 1055 L7 JB AA 179 4 5330 4620 600 Basic Model 2 4 Name plate Name plate for the unit is attached on the right side of the control panel General information of the product can be achieved from the plate and the information can be used for quicker service later ڸ ڹ ں ڻ ڼ ڽ ھ ڿ ۀ ہ ۂ ۃ ۄ ۅ Figure 3 Name plate Model name Refrigerant Cooling capacity Power and current required f...

Page 11: ... when the safety valve discharge pressure increases abnormally in case the refrigerant is filled in the Centrifugal Chiller Check the safety valve setting pressure of the product if a temperature of the machine room is above 40 C and maintain a temperature of the machine room below a pressure at which discharge starts by consulting with our service engineers 3 Store the Centrifugal Chiller in a dr...

Page 12: ...ath to drain out the water when cleaning the heat transfer tubes as well as for draining cold water and cooling water before shutting down 4 To ensure the stable operation of the Centrifugal chiller level off the Centrifugal chiller by adjusting the leveling plates during the installation Maintain 0 5 mm for each 1 m 5 Basic construction is out of scope of LG Electronics Please work according to t...

Page 13: ...e Centrifugal Chiller regardless of whether it is before or after installation 3 4 1 Conditions of Storage Place Store the product in a place matching with the environment conditions of installation place in the Section 3 2 If water is supplied when the water pipe is connected make sure to store the product after completely draining the cold water and coolant and purge with the air additionally so...

Page 14: ...ice center to take corrective measures by our engineers after taking pictures of damaged parts for its seriousness 4 3 Product Protection When taking over the product inspect and record the following to protect the product 1 The product is shipped with the refrigerant or nitrogen filled to prevent corrosion due to inflow of outside mois tures Make sure to avoid arbitrary control or opening of the ...

Page 15: ...the standard model of LG Electronics Make sure to check the approved drawing for the product measurement to enter Proceed with installation after consulting with LG Electronics or the agency that LG Electronics approved for the condition of the site WARNING Bringing in the product in disassembled parts and assembling it should be implemented under the supervision of LG Electronics or the agency th...

Page 16: ...ow and make sure to observe the warning caution below when moving WARNING Lift the Centrifugal Chiller up by balancing it properly Secure the minimum chain length Firstly lift it up for about 0 5 m to test and check whether the product is leveled and check if the product is appropriately lifted Each chain should be capable of supporting the weight of the product Lifting or moving the Centrifugal C...

Page 17: ... may not be easy When bringing the product in using roller the installer should prepare the roller and assistant wood by his own cost Considering the weight and size of the product the installer must prepare the parts accordingly Be mindful of the safety especially when moving TUBE Sheet BASE Transportation equipment roller Select the transportation equipment of the frame Figure 7 Moving method by...

Page 18: ...ns are based on the standard model Prepare foundation fitting the model to install after checking the foundation drawing approved Table 5 The basic dimensions standard Figure 8 Basic measurement standard model Unit mm WARNING Make sure to install the Centrifugal Chiller in a place with enough strength to support the product weight Insufficient strength may cause the Centrifugal Chiller to drop and...

Page 19: ...e product and fixing the vinyl hose by using a transparent vinyl hose Secure horizontality for the width direction by same method 6 3 Anti vibration Device Installation Install the anti vibration pad or anti vibration spring option at the base of the product to minimize noise and vibration propagation through a structure of a building 6 3 1 Standard anti vibration anti vibration pad and Anchor Bol...

Page 20: ...al Chiller 6 4 3 Precautions after Installation 1 Make sure to avoid damage of the valve and piping etc of the Centrifugal Chiller when implementing works such as connecting water piping safety valve discharge piping and cold insulation 2 Make sure that high temperature water does not flow into the Chiller after water piping construction 3 Consult with service staffs for a long term storage 4 Alwa...

Page 21: ... clean the heat transfer tubes of the heat exchanger Install the pip ing connections to be separated easily without interfering with other piping when extracting heat transfer tubes 7 Please avoid using cold water cooing water pump at 3 600 RPM It may cause resonance as the RPM is the same as that of the motor of the Centrifugal Chiller A vibration isolation device should be installed if unavoidab...

Page 22: ...e in Head Type standard product Contact LG Electronics for a non standard specifica tion such as Marine Type h The size of piping changes depending on the product combination Refer to the submitted data sheet CAPACITY MODEL L T W H A B C D E F I J 200RT RCWFLL6 3353 3561 1428 2434 3004 1080 400 640 260 330 1310 1550 300RT RCWFLL7 3973 4150 1428 2434 3650 1080 332 668 426 690 1426 1704 100 RT 200 R...

Page 23: ... with an adequate torque following the flange fastening order Repeat this with the clamping force fit to the bolts 2 Fastening Water Box Flange Bolt Fasten 12 bolts with an adequate torque following the order by referring to the Figure 12 Fasten the next 12 bolts with a final torque following the consecutive sequence And fasten the first 12 bolts and unfastened bolts with the final torque Start fa...

Page 24: ...hown in Fig 13 2 As the R 134a refrigerant applied to our products is a kind of Freon gas the discharge pipe of the safety valve should be installed in a safe location outside the building based on the regulation of Refrigeration Manufacturing Facility Standard and Technical Standard 7 4 2 Precautions when Connecting the Discharge Pipe 1 When connecting the discharge pipe to the safety valve do no...

Page 25: ...d in case of steel material espe cially it is desirable to establish measures effective to water such as addition of water proof chemicals and de aer ation when steel materials contact water directly without protection films Items Coolant system Cold water system Tendency Circulation system Routine system Circulating water Makeup water Routine water Circulating water Below 20 C Makeup water Corros...

Page 26: ...art of the compressor and main piping bolt order to be disassembled easily for overhaul or inspection service 4 Make sure that cold insulation material does not block the view of the liquid level gauge and its window 5 When working cold insulation consider that the temperature sensor and others can be separated for replace ment 6 Use cold insulation materials with an equal or higher thermal conduc...

Page 27: ...e Do not place bolts and nuts etc inside the control panel and inverter It may cause malfunction or damage Use cables matching with the rating It may cause fire and damage Install the machine control panel and inverter in a place with no inflammable substance It may cause a fire Make sure the supplied voltage does not exceed the range specified in the manual or related data It may cause damage or ...

Page 28: ...er pay sufficient attention Transportation by vehicles etc 1 How to uploading Fix and stabilize the power panel and inverter when loading to prevent them from falling while transporting Do not load the start up panel or any other goods on top of the power panel and inverter Use rope to fix the power panel and inverter to prevent them from moving or falling due to vibration Fix the starter by apply...

Page 29: ...essories for the product and other installation in order not to be lost Do not let the bottom of the power panel and inverter come into contact with the floor directly and store them at least 60 120 mm above ground Do not keep the power panel and inverter stacked on each other Use a separate protection cover to protect the power panel and inverter from changes of the surrounding environ ment in ca...

Page 30: ...er s option Control power 220 380 440Vac 3Ph It is the user s option May change depending on power supply of the customer Controller power 20Vac 1PH 50 60Hz Storage temperature 10 C 60 C Working temperature 5 C 40 C Working humidity 25 C 20 80 RH No dew condensation Surrounding environment No corrosive gas flammable gas oil residue dust etc Elevation vibration Altitude of 1000 m or below 5 9 m sec...

Page 31: ...ncluding operating switch display gauge meter etc Also clean the start up panel after installation and check if there is any damaged or destroyed part during installa tion Installation of foundation bolts Completely tighten prepared foundation bolts in the foundation bolt holes of the Channel base Make sure to adjust horizontality before installing the foundation bolts Bolt Standard Torque Kgfㆍcm ...

Page 32: ... control panel power panel and inverter clean Do not open the protection cover when the control panel power panel or inverter is operating or the operating power is supplied Do not come into contact with the heated surfaces such as the heater Inspect the signal connection parts protection devices and structure regularly Contact specialists if there is any suspicious or abnormal part detected Keep ...

Page 33: ... panel on site 9 1 1 LG Wiring diagram of the power panel on site Inverter start up The diagram shown above is a reference diagram As it may change depending on the design improvements and customer requests please refer to the approved diagram ...

Page 34: ...agram and it may be changed based on consultation with the customer and the site condition 5 Pressure operation power cable must be arranged in an appropriate way Each power supply pipe should operate to carry an accurate number of conductors to the start motor 6 Make sure that the power supply conduit does not interfere with the service structural members and refrigera tion equipment 7 Reinforcin...

Page 35: ... safety 9 3 Control Board Site Connection Diagram Control Board Power Supply The control board should be supplied with the 3 phase 3wire power Including ground wire 1 The nominal voltage is 220 380 440VAC 60 50Hz and allowed range is 10 of them This may change depending on the power environment of the consumer 2 Power capacity Require higher than 4kVA 3 Be cautious of connection R S and T 4 The ca...

Page 36: ...ter for the protection of the medium voltage as shown below Motor Protection There is a protection function for no motor motor phase deficiency and over current in the inverter so it checks whether the high voltage motor is being operated safely If current over the set value occurs it has a protection function to prevent overload and stop chiller immediately by sending a signal to the control pane...

Page 37: ...of the Chiller received properly 2 Have you checked external damage of the equipment or internal connection abnormality during transportation 3 Has the refrigerant leaked after sealing check the refrigerant pressure 4 Is the heat insulation of equipment such as the evaporator and economizer strong 5 Are the directions of the cold water and coolant inlet outlet of the Chiller the same as the design...

Page 38: ...38 ENGLISH 2 Centrifugal Chiller Interface Diagram 1 2 h Control Power Lead in Wire Above F CV 6SQ h Control Signal Wire F CVV 2 5SQ h Motor Analog Signal Wire F CVVSB1 5SQ ...

Page 39: ...39 ENGLISH 2 Centrifugal Chiller Interface Diagram 2 2 Turbo Chiller second power supply construction cable table The table shown above may change depending on the conditions of the site ...

Page 40: ...40 ENGLISH 3 Control panel wiring diagram ...

Page 41: ...41 ENGLISH 3 Control panel wiring diagram ...

Page 42: ......

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