User manual LG GC-305WFB

[. . . ] Set and install the header and follower units taking the installation site into consideration. (Be certain to use the new refrigerant R410A in the indoor units. ) The indoor unit connected to the remote controller will be the header unit. · Ensure that all Local, National and International regulations are satisfied. · Read indoor, outdoor installation manual and this manual carefully before Installation. [. . . ] Install Units A, B and C on the same level. If Units A, B and C cannot be installed on the same level, the difference in level should be limited to 0. 5 m or less. EN 7 Branch Kit 1:3 Piping materials and sizes <RAV-SM1603AT(Z)(ZG)-E> Use copper tube of Copper and copper alloy seamless pipes and tubes, with 40 mg/10 m or less in the amount of oil stuck on inner walls of pipe and 0. 8 mm in pipe wall thickness for diameters 6. 4, 9. 5 and 12. 7 mm and 1. 0 mm, for diameter 15. 9 mm. Never use pipes of thin wall thickness such as 0. 7 mm. Between outdoor unit and distributor [Unit: mm] Outdoor unit Main pipe * ( ): Pipe wall thickness Gas side Liquid side Ø15. 9 (1. 0) Ø9. 5 (0. 8) Between distributor and indoor unit [Unit: mm] Indoor unit Branch pipe * ( ): Pipe wall thickness Gas side Liquid side SM56 type Ø12. 7 (0. 8) Ø6. 4 (0. 8) EN <RAV-SM2244AT, SM2804AT series> Use general copper pipes with a wall thickness of 0. 8 mm for Ø6. 4 mm, Ø9. 5 mm, and Ø12. 7 mm, with a wall thickness of 1. 0 mm for Ø15. 9 mm, with a wall thickness of 1. 2 mm for Ø19. 1 mm, and with a wall thickness of 1. 0 mm for Ø28. 6 mm (half hard). Do not use any copper pipes with a wall thickness less than these thicknesses. Between outdoor unit and distributor [Unit: mm] Outdoor unit Main pipe * ( ): Pipe wall thickness Gas side Liquid side Ø28. 6 (half hard 1. 0) Ø12. 7 (0. 8) Between distributor and indoor unit [Unit: mm] Indoor unit Branch pipe * ( ): Pipe wall thickness Gas side Liquid side SM80 type Ø15. 9 (1. 0) Ø9. 5 (0. 8) 8 EN Branch Kit 1:3 Distributor Now the refrigerant pipe is installed using distributor supplied as accessory. · Bend and adjust the refrigerant piping so that the distributor and pipe after branching become horizontal. · Fix the distributor onto a wall in a ceiling or onto a column. · Provide a straight pipe longer than 500 mm in length as the main piping of the branches. How to install distributor Branch pipes are horizontal and collective pipes are vertical Branch pipes are horizontal and collective pipes are vertical Branch pipes and collective pipes are horizontal Branch pipes and collective pipes are horizontal Branch pipe Collective pipe <Gas pipe side> Branch pipe Collective pipe <Liquid pipe side> Restrictions in length of the straight area of the branch pipe (main pipe side) Provide a straight area of 500 mm or more on the main pipe side of the branch pipe (for both gas pipe and liquid pipe sides). NO GOOD Tilt 500 mm or more 500 mm or more Be sure to install the pipes horizontally after branching. Air Purging For the complete information, read the installation manual for outdoor units of air conditioner. EN 9 Branch Kit 1:3 Additional Refrigerant Amount <RAV-SM1603AT(Z)(ZG)-E> Indoor unit C Indoor unit B Indoor unit A Branch pipe b Branch pipe Branch pipe c Distributor a H Main pipe L EN Formula for Calculating Additional Refrigerant Amount Do not remove the refrigerant even if the additional refrigerant amount becomes minus result as a result of calculations by the following formula and operate the air conditioner as it is. Attaching the clamp filter> CN301 CN300 Fan motor lead wire (Lower side) Banding band Clamp filter Attach the clamp filter supplied with the outdoor unit to the lower outdoor fan motor lead wire. · Make sure that the claw of the clamp filter is securely locked. · Pass the banding band supplied with the outdoor unit through the upper hole of the clamp filter to clamp it together with the fan motor lead wire. · The fan motor lead wires are connected to connectors CN301 and CN300 on the P. C. board of the outdoor unit. EN 15 Branch Kit 1:3 <RAV-SM2244AT, SM2804AT series> Indoor/outdoor connecting wire Earth screw 1 2 3 Power supply wire Earth screw L1 L2 L3 N Cord clamp Cord clamp Cord clamp Clamp filter (accessory) Cord clamp EN WARNING Be sure to attach the provided clamp filter to the power supply wire in order to conform to EMC standards. Stripping length power cord and connecting wire 10 123 10 50 50 10 L1 L2 L3 N 10 30 (mm) 40 Earth line Earth line Power supply wire Connecting wire 16 EN Branch Kit 1:3 NOTE When using the equipment at the first time, it will take a lot of time that the remote controller accepts an operation after power was on. Automatic address While automatic addressing, the operation can not be performed on the remote controller. When power will be turned on after finish of automatic addressing; · It will require Max. 3 minutes) that outdoor unit starts operation after power was on. Indoor Unit operation when connected to multiple unit Simultaneous triple system A combination with an outdoor unit allows simultaneous ON/OFF operation of three indoor units for the triple system. Triple system Outdoor unit Indoor unit Indoor unit Indoor unit Remote controller Finish of address setup by power-ON · · For wiring procedure and wiring method, follow to the "Electric wiring" in this manual. When the power supply has been turned on, the automatic address setup starts and which indicates that address is being set up flashes on the display part. During setup of automatic address, the remote controller operation is not accepted. Required time up to the finish of automatic addressing is approx. [. . . ] (Be sure to stop operation of the unit. ) Procedure 2 In the group control, every pushing button, the indoor unit No. in the group control is displayed in order. At this time, the position of the indoor unit can be confirmed because only fan and louver of the selected indoor unit operate. of the firstly displayed indoor unit becomes the header unit. ) Procedure 3 1, 3 Procedure 1 1 2 After confirmation, push button to return the mode to the usual mode. [. . . ]