User manual LG LMNH366TDA0

[. . . ] Store the operation and installation manual in a safe location and remember to hand it over to the new owner if the air This manual explains how to install an indoor unit with a split system with two LG units. The use of other types of units with different control systems may damage the units and invalidate the warranty. The manufacturer shall not be responsible for damages arising from the use of non compliant units. The manufacturer shall not be responsible for damage originating from unauthorized changes or the improper connection of electric and requirements set forth in the "Operating limits" table, included in the manual, shall immediately invalidate the warranty. [. . . ] The terminal is connected too firmly , the terminal may be damaged. E-16 09'FJM_OUTDOOR_28896A_IM_E_11. 23. 09. indd 16 2009-11-24 9:19:55 INSTALLING THE OUTDOOR UNIT MH070FXA4B / MH080FXA4B A-unit 1(L) 2(N) F1 F2 B-unit 1(L) 2(N) F1 F2 Indoor unit C-unit 1(L) 2(N) F1 F2 D-unit 1(L) 2(N) F1 F2 1 2 F1 F2 1 2 Assembly cable F1 F2 1 2 F1 F2 1 2 F1 F2 B Earth terminal 2 Earth terminal C F1 F2 B 1 2 C F1 F2 B 1 2 Earth terminal C F1 F2 B 1 2 Earth terminal C F1 F2 1 Earth terminal Earth terminal Earth terminal Earth terminal Outdoor unit 1(L) 2(N) 1(L) 2(N) 1(L) 2(N) 1(L) 2(N) L N Main Power supply cable F1 F2 F1 F2 F1 F2 F1 F2 A B C D A 1 A 2 B C D Power cable to indoor units Earth terminal Communication cable to indoor units Cable Type: A Cable Type: B Cable Type: C Screw M4 M5 The specification for cables : Model MH040FX*A2B MH040FX*A2C MH050FX*A2B MH050FX*A2C MH18VF1X MH19VF1X MH060FX*A3B MH070FX*A4B MH080FX*A4B Main Power Supply Cable Indoor Power Supply Cable Type Specication Type Specication Torque(kgf. cm) Unfasten Torque Tighten Torque 17~30 25~40 20~35 30~50 FUSE MCCB Type GL Communication Cable Specication Type 3G, 2. 5mm2 or more, H07RN-F 3G, 1. 0mm2 or more, H07RN-F 2G, 0. 75mm2 or more, H07RN-F 20A Frame : 30A Trip : 20A Frame : 30A Trip : 25A Frame : 30A Trip : 30A 20A 20A 30A 25A 30A Connect the power cable to the auxiliary circuit breaker. If every pole fails to connect to the power supply, it must be incorporated in a wire with a contact opening of 3mm. The terminal is connected too firmly , the terminal may be damaged. E-17 09'FJM_OUTDOOR_28896A_IM_E_11. 23. 09. indd 17 2009-11-24 9:19:56 ENGLISH INSTALLING THE OUTDOOR UNIT Connecting the Cables to the Outdoor Unit (Continued) Preparation of cables for outdoor unit terminal block 1 2 E Main power supply cable: L(mm) Cable of indoor unit Main Power L(mm) 1 2 E 20 20 90 Power cable to indoor units: L(mm) Cable of indoor unit A B C D 1 2 E Remark 60 60 70 90 60 60 70 90 80 80 110 90 For 060/070/080 only For 070/080 only Communication cable to indoor units : L(mm) Cable of indoor unit A The designs and shape are subject to change according to the model. B 15 C D 15 For 060/070/080 only For 070/080 only 1 2 Remark E-18 09'FJM_OUTDOOR_28896A_IM_E_11. 23. 09. indd 18 2009-11-24 9:19:57 INSTALLING THE OUTDOOR UNIT Transmitter Installation (Optional) ENGLISH MH040FXA2B/MH040FXA2C/MH18VF1X/MH19VF1X Accessories (Transmitter: MIM-B13A) Transmitter MAIN Transmitter SUB 485 Communication DC Power Cable Cable (12V) DC Power Cable (5V) Communication Cable Cable Tie Case 1 2 Turn the power off and take off the cover of the outdoor units. Fix the case with bolts to the side of the control box referring to the figure on the right side. In case of FJM outdoor unit, there is not enough space to fix all parts of transmitter. So you may use transmitter main PCB. Attach the transmitter main PCB to the case, then connect F1/F2 lines, R1/R2 lines which are upper controller communication cables and DC 12V power cables to the interface module referring to the figure on page 21. (Upper controller power should be off. ) You must check the position of dip switch on the transmitter main PCB and the main PCB of all of the indoor units. Assemble a cover of the outdoor unit and turn the power on. If you install a transmitter to the outdoor unit, every indoor unit which is connected to the outdoor unit can be controlled simultaneously. Each outdoor unit connected to the same centralized controller has its own transmitter. Bolts spec. (not supplied with product) OUTDOOR UNIT INSTALLED ON THE WALL BY RACK - Ensure the wall will be able to suspend the weight of rack and outdoor unit; - Install the rack close to the colum as much as possible; - Install proper grommet in order to reduce noise and residual vibration transferred by outoor unit towards wall. Soft rubber designed to cut off vibration from rack to wall. (not supplied with product) E-22 09'FJM_OUTDOOR_28896A_IM_E_11. 23. 09. indd 22 2009-11-24 9:20:16 COMPLETING THE INSTALLATION Connecting Up and Purging the Circuit ENGLISH Indoor A-unit Indoor B-unit WARNING When installing, make sure there is no leakage. When recovering the refrigerant, ground the compressor first before removing the connection pipe. If the refrigerant pipe is not properly connected and the compressor works with the service valve open, the pipe inhales the air and it makes the pressure inside of the refrigerant cycle abnormally high. The outdoor unit is loaded with sufficient R410A refrigerant. Do not vent R-410A into atmosphere: it is a fluorinated greenhouse gas, covered by Kyoto Protocol, with a Global Warming Potential (GWP) = 1975. You should purge the air in the indoor unit and in the pipe. If air remains in the refrigerant pipes, it affects the compressor. It may cause reduction of cooling capacity and malfunction. Refrigerant for air purging is not charged in the outdoor unit. MH040FXA2B/MH040FXA2C / MH050FXA2B/MH050FXA2C / MH18VF1X/MH19VF1X 1 Check the piping connections. 2 Connect the charging hose of low pressure side of manifold gauge to the packed valve having a service port (MH040FXA2B/MH040FXA2C:3/8" service valve 2EA; MH050FXA2B/MH050FXA2C:3/8" service valve 1EA+1/2" service valve 1EA) as shown at the figure. WARNING Make the electrical connection and leave the system into "stand by mode". [. . . ] - Inlet air temp: From 11°K to 14°K (indicative delta T) In heating mode, the indoor fan motor can remain off to avoid cold air blown into conditioned space. E-29 09'FJM_OUTDOOR_28896A_IM_E_11. 23. 09. indd 29 2009-11-24 9:20:46 ENGLISH COMPLETING THE INSTALLATION Switch Setting and Testing Operation (Cont. ) It could take maximum 60 minutes to operate for the protection of the compressor if the outdoor temperature is below -5°C. Ampere Limit Setting & Changing Procedure WARNING Do not adjust the "Ampere Limit Switch", if it's not necessary: before modifying it, evaluate the total number of electric and electronics loads consumption and use "Ampere limits switch" just as emergency solution or in case the system is anyway oversized compared to real thermal load needed. "Ampere Limit Switch" is initially set to the default value (table below). The designs and shape are subject to change according to the model. "Ampere Limit Switch" is on the PCB of outdoor unit. [. . . ]