User manual LG LRNU36GBGA0

[. . . ] With the recent increase in the number of high concentration buildings, however, the installation of multi air conditioner systems is on the increase because of the need for effective use of floor space, individual control, energy conservation by curtailing heat and carrying power etc. Most importantly, the multi air conditioner system is able to replenish a large amount of refrigerant compared with conventional individual air conditioners. If a single unit of the multi conditioner system is to be installed in a small room, select a suitable model and installation procedure so that if the refrigerant accidentally leaks out, its concentration does not reach the limit (and in the event of an emergency, measures can be made before injury can occur). In a room where the concentration may exceed the limit, create an opening with adjacent rooms, or install mechanical ventilation combined with a gas leak detection device. [. . . ] (A, B terminals) Use 2-core and non-polarity wire for wiring of group control. (A, B terminals) 97 NOTE 4 or more control wires connected to one terminal is prohibited. U3 U4 Outdoor unit U1 U2 U5 U6 Indoor unit 12 AB 12 AB 12 AB Remote controller NOT GOOD 12 AB 12 AB 12 AB 12 AB 12 AB 12 AB NOTE Loop wiring of control wires is prohibited. U3 U4 U1 U2 U5 U6 Outdoor unit Indoor unit 12 AB 12 AB 12 AB Wiring which the transmission line is formed in loop is unavailable, Dotted line is forbidden 2m or more Remote controller NOT GOOD 12 AB 12 AB 12 AB 12 AB 12 AB 12 AB 98 · Specifications of cables for controlling 1. Connect each cable for controlling as shown below. Header A Follower B Follower C U1 U2 U3 U4 U5 U6 U1 U2 U3 U4 U5 U6 U1 U2 U3 U4 U5 U6 U3 and U4 terminals are used when a central control which connects each line is adopted. Shield wire earth Control wiring Shield wire between outdoor units indirect connection Control wiring between indoor and outdoor units Shield wire earth · Power supply specifications of combined outdoor units When a distribution panel is provided for each combined outdoor units as shown in the following figure, select the power supply wiring of the main trunk line (a) up to the distribution panel and fuse from the table below. Header Follower unit 1 Follower unit 2 Power supply unit L1 L2 L3 N L1 L2 L3 N L1 L2 L3 N Main switch (1) Outdoor power supply 3-phase 380-415V 50Hz (a) Distribution panel Earth leakage breaker (2) Earth (a) Distribution panel (b) Heat Recovery model MMY-AP1602FT8 MMY-AP1802FT8 MMY-AP2002FT8 MMY-AP2402FT8 MMY-AP2602FT8 MMY-AP2802FT8 MMY-AP3002FT8 Power supply wiring Wire size 14 mm² (AWG #6) Max. 64 m Field fuse 50 A 50 A 60 A 75 A 75 A 75 A 100 A * : Model name differs according to each wire manufacturer. 99 Single outdoor unit 50Hz Compressor RLA 5. 2 + 5. 2 6. 5 + 6. 5 9. 5 + 9. 5 LRA -- -- -- kW 0. 60 0. 60 0. 60 FLA 1. 0 1. 1 1. 1 MCA MOCP 20. 0 30 22. 5 30 24. 5 30 ICF -- -- -- Fan motor Power supply Heat pump Model MMY- Nominal voltage (V-Ph-Hz) MAP0802FT8 MAP1002FT8 MAP1202FT8 400-3-50 400-3-50 400-3-50 Voltage range Min Max 342 457 342 457 342 457 Combination of outdoor unit Fan motor kW 0. 60 × 2 0. 60 × 2 0. 60 × 2 0. 60 × 3 0. 60 × 3 0. 60 × 3 0. 60 × 3 FLA 1. 0 + 1. 0 1. 1 + 1. 0 1. 1 + 1. 1 1. 0 + 1. 0 + 1. 0 1. 1 + 1. 0 + 1. 0 1. 1 + 1. 1 + 1. 0 1. 1 + 1. 1 + 1. 1 Power supply MCA 40. 0 42. 5 45. 0 60. 0 62. 5 65. 0 67. 5 MOCP 50 50 60 70 70 80 80 ICF -- -- -- -- -- -- -- Amps NOTE : Amps RLA is based on the following conditions. Indoor temperature : 27°C DB/19°C WB Outdoor temperature : 35°C DB Heat pump Model MMYUnit No. 1 RLA LRA 5. 2 + 5. 2 -- 6. 5 + 6. 5 -- 6. 5 + 6. 5 -- 5. 2 + 5. 2 -- 6. 5 + 6. 5 -- 6. 5 + 6. 5 -- 6. 5 + 6. 5 -- : Locked Rotor : Full Load : Fan Motor Rated Output (kW) Unit No. 3 RLA LRA -- -- -- -- -- -- 5. 2 + 5. 2 -- 5. 2 + 5. 2 -- 5. 2 + 5. 2 -- 6. 5 + 6. 5 -- Nominal voltage (V-Ph-Hz) Voltage range AP1602FT8 AP1802FT8 AP2002FT8 AP2402FT8 AP2602FT8 AP2802FT8 AP3002FT8 400-3-50 400-3-50 400-3-50 400-3-50 400-3-50 400-3-50 400-3-50 Min 342 342 342 342 342 342 342 Max 457 457 457 457 457 457 457 Compressor Unit No. 2 RLA LRA 5. 2 + 5. 2 -- 5. 2 + 5. 2 -- 6. 5 + 6. 5 -- 5. 2 + 5. 2 -- 5. 2 + 5. 2 -- 6. 5 + 6. 5 -- 6. 5 + 6. 5 -- 100 Legend MCA MOCP ICF RLA : Minimum Circuit Amps LRA : Maximum Overcurrent Protection (Amps) FLA : Maximum Instantaneous Current Flow Start kW : Rated Load Amps 9-4. For Indoor Unit Power Supply (The outdoor unit has a separate power supply. ) Item Model All models of indoor units FS unit Power supply wiring Wire size 2. 0mm² (AWG#14) Max. 50m Field fuse 15A Be sure to use the attached cable (6m). If the length between indoor and FS unit exceeds 5m, connect by using the connection cable kit (RBC-CBK15FE). (Sold separately) NOTE : The connecting length indicated in the table represents the length from the pull box to the outdoor unit when the indoor units are connected in parallel for power, as shown in the illustration below. A voltage drop of no more than 2% is also assumed. If the connecting length will exceed the length indicated in the table, select the wire thickness in accordance with indoor wiring standards. · Group Control through a Remote Controller Group control of multiple indoor units (8 units) through a single remote controller switch Indoor unit No. 1 AB No. 2 AB No. 3 AB No. 4 AB No. 7 AB No. 8 AB Remote controller (A. B) Indoor power source single phase 220­240V, 50Hz Earth leakage breaker Switch Pull box FS unit FS unit FS unit FS unit FS unit FS unit FS unit FS unit CAUTION (1) Keep the refrigerant piping system and the indoor-indoor/indoor-outdoor control wiring systems together. Connect the ring terminal of the attached wire (power supply) to the earth screw. Connect the connector (green) of the attached wire (control wiring) to CN02 on the FS unit control P. C. Secure the two attached wires with the attached cord clamp. (Be careful not to apply tension to the wires and connectors. ) · Check that the wires are not pinched, and then attach the cover. · · · · · Earth screw Cord clamp (Control wiring) Cord clamp Attached wire (Power supply) Attached wire (Power supply) CN01 (Red) Fixing screw (4 parts) Control P. C. board CN02 (Green) 104 Indoor unit See also the Installation Manual supplied with the indoor unit. · Remove the electrical parts box cover from the indoor unit. · Connect the receptacle R(L) and S(N) on the attached wire (power supply) to a free on the R(L) and S(N) terminal block for power supply. When the indoor unit is the high wall or concealed duct high static pressure type, connect as follows. Connect the wire to the lead wires with wire joint on the R(L) and S(N) terminal block for power supply, using the following procedure: Cut the wire joint on each lead wire, and cut the receptacle R(L) and S(N) on the attached wire (power supply). Then check the R(L) and S(N) phases, and connect the wire and the lead wires with the attached wire joints. [. . . ] of indoor units Communication circuit error between indoor/ outdoor (Detected at outdoor side) Duplicated indoor addresses Duplicated main remote controllers Communication error between indoor MCU Remote controller Remote controller Indoor Indoor E06 E06 04 I/F -- E08 E09 E10 E07 E08 -- -- -- 96 99 CF I/F Indoor / I/F Remote controller Indoor E12 E12 42 Automatic address start error I/F E15 E16 E18 E19 E15 E16 -- E19 42 89 97, 99 96 Indoor is nothing during automatic addressing Capacity over / No. of connected indoor units Communication error between indoor units Outdoor header units quantity error I/F I/F Indoor I/F E20 E20 42 Other line connected during automatic address Sending error in communication between outdoor units Duplicated follower outdoor units Decrease of No. connected outdoor units Follower outdoor error I/F E23 E25 E26 E28 E23 E25 E26 E28 15 15 15 d2 I/F I/F I/F I/F E31 E31 CF IPDU communication error I/F Check code Main remote controller display F01 F02 F03 F04 F05 F06 F07 F08 F10 F12 F13 F15 F16 F23 F24 F29 F31 H01 -- -- -- F04 F05 F06 F07 F08 -- F12 F13 F15 F16 F23 F24 -- F31 H01 Outdoor 7-segment display Auxiliary code -- -- -- -- -- -- -- -- -- 01: TS1 sensor error 02: TS2 sensor error 01: Comp. 2 side -- -- -- 01: TK1 sensor error 02: TK2 sensor error 03: TK3 sensor error 04: TK4 sensor error -- 01: TK1 oil circuit system error 02: TK2 oil circuit system error 03: TK3 oil circuit system error 04: TK4 oil circuit system error -- -- -- 0F 0d 93 19 A1 18 18 1b OC A2 43 18 43 43 43 12 1C IF AI-NET central control display Wireless remote controller Sensor block display of receiving unit Operation Timer Ready Flash Check code name Judging device ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ALT ALT ALT ALT ALT ALT ALT ALT ALT ALT ALT ALT ALT ALT ALT SIM SIM Indoor TCJ sensor error Indoor TC2 sensor error Indoor TC1 sensor error TD1 sensor error TD2 sensor error TE1 sensor error TL sensor error TO sensor error Indoor TA sensor error TS1, TS2 sensor error TH sensor error Outdoor temp. 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