User manual LG HSUC1865DA4

[. . . ] Any modification may cause a malfunction, resulting in overheating or fire. CAUTION · Do not install the unit at a place subject to leakage of flammable gas. If flammable gas leaks and remains around the unit, it may catch fire. · Perform wiring correctly in accordance with the specified current capacity. Failure to do so may result in short-circuiting, overheating, or fire. [. . . ] One LN interface has a capacity to control indoor units of up to 64 groups. (*1) A free topology FTT-10A transceiver is used as the LONWORKS transceiver. Specifications Name Model Power supply Power consumption Number of connectable indoor units Operating temperature/humidity Storage temperature Dimensions Mass (*1) Maximum number of connectable indoor units The maximum number of connectable indoor units is determined by the TCC-LINK and LN interface. You can connect up to 64 units to the TCC-LINK main bus , therfore the LONWORKS (Local Operating Network) control system is also limited to 64 indoor units. LN interface HSUC1865DA4 220 - 240 VAC, 50/60 Hz 3W 64 groups (*1) 0 to 40 °C, 20 to 90% RH -20 to +60 °C (no condensation) 66 (H)×246 (W)×193 (D) mm 1. 2 kg External View 18 234 Mounting hole 6 ­ ø5. 5 18 78. 5 78. 5 18 78. 5 220 63. 6 246 2 66 18 78. 5 193 Before Installation Check the following package contents. No. 1 2 3 Item LN interface Installation Manual Screw Quantity 1 1 4 M4 × 12 mm tapping screws Remarks Use the following wiring materials to connect signal lines. 1 Signal wires For TCC-LINK Descrption Type 2-core shield wire Wire size 1. 25 mm2, 1000 m max. (total length including Length Type 2 For LONWORKS 2. 00 mm2, 2000 m max. air conditioner area) Twisted pair shield cable (dedicated cable or equivalent) Wire size 0. 65 mm × 1P Length Free topology : 500 m max. (total length) Bus topology : 1000 m max. 1 Installation Installation Method and Orientation There are three installation methods as shown in the figure: surface mount and wall mount. Do not install the unit in any other orientation. Use the attached screws. GOOD NO GOOD REQUIREMENT Do not install the unit in any of the following places. · Humid or wet place · Dusty place · Place exposed to direct sunlight or at a high temperature · Place within one meter from a TV set or radio · Place exposed to rain (outdoors, under eaves, etc) Installation Space and Maintenance Space A side space for connection through cable inlets and an upper space for maintenance must be reserved before installation. This means that the maximum of the central control address equals the number of connected indoor units. However, if an address is omitted, the maximum of the central control address differs from the number of connected indoor units. In this case, set the maximum of the central control address according to the table below. Note: The system works normally when the set value is larger than the maximum. However, it will result in communication loss. Indoor unit central control address and SW1/SW2 setting Indoor unit central control address 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 SW1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 SW2 0 1 2 3 4 5 6 7 8 9 A B C D E F Indoor unit central control address 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 SW1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 SW2 0 1 2 3 4 5 6 7 8 9 A B C D E F Indoor unit central control address 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 SW1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 SW2 0 1 2 3 4 5 6 7 8 9 A B C D E F Indoor unit central control address 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 SW1 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 SW2 0 1 2 3 4 5 6 7 8 9 A B C D E F · SW3 Test switch (not used for normal operation, all OFF) · SW4 Test switch (not used for normal operation) · SW5 Used to set TCC-LINK terminator resistor. The TCC-LINK terminator resistor is set on the air conditioner side, and is not set here. Set SW5 to "Open". SW5 TCC-LINK terminator resistor select switch · SW6 Reset switch When changing the setting of the number of connected indoor units with SW1 and SW2, push this reset switch after setting to read the set value. · SW7 Mode set switch SW7 Mode set switch Used to set MCU operation mode. Do not change the setting. 100 ohm Open 6 LONWORKS System LONWORKS specific setting called "binding" is required. A specific tool is used for the setting. [. . . ] Ask a professional engineer for this process. · SW8 Service pin for LONWORKS system Used for binding with the upper LONWORKS system. 4 Trial Operation Check Check the communication status between LN interface and indoor units. It can be checked even when the LONWORKS system is not running. By using SW1, SW2, and SW3, check the communication status of each connected indoor unit with LED4 and LED5. Checking TCC-LINK communication status Set bit 2 of SW3 to "ON" during normal operation. [. . . ]