User manual LG 75954

[. . . ] 9 Capacity compensation chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Piping requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Refrigerant cycle diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Sensible capacity table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] board to inverter assembly of the header outdoor unit. 12 SW07-1 OFF ON 100% (Nomal) 100% (Normal) Up to 80% Up to 85% Up to 60% Up to 75% 0% (stop) Up to 60% Be sure to prepare the point of contact for each terminal. Don't turn on both SW1 and SW2 terminal simultaneously. 120 Model name Appearance Function [2] Snowfall fan control Feature Outdoor fan is operated by the snowfall signal from outside. Function TCB-PCMO2E COM SMC Cooling Local Supply TCB-PCMO2E Size : 55. 5 x 60 Application SMC : Cooling mode select input (switch) Terminal Input signal Operation ON Snowfall fan control (Operates outdoor fan. ) SMC OFF ON Usual operation OFF This control is conducted when input signal stand up and fall down. (Standing and falling status should be held for 100 mm. sec. or more. ) [3] External master ON/OFF control Feature The outdoor unit starts or stops the system. Function TCB-PCMO2E COM SMC Cooling Heating SMH Local Supply 12 *Place this optional P. C. board to inverter assembly of the header outdoor unit. SMC Input signal for start SMH Input signal for stop Terminal Input signal Operation ON Starts all indoor units. SMC OFF ON SMH OFF · Be sure to prepare non voltage continuous point of contact for each terminal. This control is conducted when input signal stand up or fall down. (Standing and falling status should be held for 100 mm. sec. or more. ) 121 Stops all indoor units. Remote controller · Wired remote controller RBC-AMT21E 2. 7 4 120 16 120 · Simple remote controller RBC-AS21E 12 120 80 60 70 13 16 122 · Wireless remote controller TCB-AX21U (W)-E 186 58 19. 5 186 · Wireless remote controller kit RBC-AX22CE 32 61 130 58 19. 5 177 65 12 61 177 123 · Wireless remote controller kit TCB-AX21E 58 19. 5 4. 4 x 9. 4 long hole 13 83. 5 177 70 4. 4 x 5. 4 long hole 61 · Weekly timer RBC-EXW21E 2. 7 4 12 120 16 120 124 83. 5 · Central remote controller TCB-SC642TLE 116 47 15 Electrical component box 13 128 Hole for electrical wiring 6 6 160 148 (6) Control unit 21 69 Unit: mm 80 Hole for electrical wiring 36 47 13 128 160 148 121 115 Z (6) 121 80 Rear plate 4-Ø 5 diameter holes (for mounting) Mounting plate (for flush mounting) 4-Ø 5. 5 diameter holes (for mounting) Z-view (back side) * In order to mount the central controller flush with the wall, an opening measuring 128 mm x 128 mm is necessary. · LON Gateway TCB-IFLN 12 125 · TCS-Net relay interface BMS-IFLSV1E 200 (2. 4) 63. 6 6 5. 5 mounting hole 7 146. 9 144. 9 12. 55 (2. 4) 63. 6 7 156 22 78 78 22 · Touch screen controller BMS-TP5120ACE 12 5 54 49 316 249 75 242 95. 75 75 99. 3 82. 5 48 16 302 55. 5 19 30 126 70 91. 75 256 12. 55 170 · Intelligent server BMS-LSV2E · Energy mountoring relay interface BMS-IFWH3E 200 63. 6 12 12. 55 144. 9 12. 55 170 (2. 4) 63. 6 6 5. 5 mounting hole 7 (2. 4) 22 78 78 22 7 146. 9 156 127 · Digital I/O relay interface BMS-IFWH4E 200 (2. 4) 63. 6 6 5. 5 mounting hole 7 146. 9 144. 9 (2. 4) 63. 6 (2. 4) 156 12. 55 12. 55 170 63. 6 (2. 4) 63. 6 22 78 78 22 · WINDOWS based central controller BMS-LSV** 200 7 18 63. 5 18 12 6 234 5. 5 7 146. 9 144. 9 12. 55 93. 5 156 12. 55 170 63. 5 93. 5 22 78 78 22 18 220 18 246 128 63. 6 7 Dimension TCB-PCDM2E 71 Terminal Screw M3 x 6 61 4-4ø hole 85 Terminal Screw M4 x 8 TCB-PCNO2E 75 55. 5 45. 5 4-4ø hole Terminal Screw M3 x 6 12 60 50 129 130 13 Fan characteristics 1 131 132 13 Fan characteristics A MMD-AP0071BH, AP0091BH 140 MMD-AP0121BH 3 140 Standard air volume:480m /h Standard air volume:570m3/h Hi 120 gh -st Hi ati cp res 120 gh -st su re lim it 2H tap Ap pl ica tio n External static pressure External static pressure 100 Hig Air volume limit (Max) Air volume limit (Min) Air volume limit (Min) ic pre pr ss es ure su 1H re tap 1H tap 80 80 St Sta an nd da ard rd H Ht ap tap 60 60 Lo ws Lo w tat sta ic p tic res pre su ss re ure 40 Ht H ap 40 tap Sta nd Sta ard nd Lt ard ap 20 Lt ap 20 long life filter 0 200 400 480 600 0 300 long life filter 500 570 700 Air volume(m3/h) Air volume(m3/h) MMD-AP0151BH 140 MMD-AP0181BH Standard air volume:650m3/h 140 Standard air volume:780m3/h 120 Hig External static pressure 100 External static pressure Ap Air volume limit (Min) pl t ica ion lim it h-s tatic 120 pre ssu re 2 H ta p 100 Ap c pli o ati i nl t mi Hig h-s tatic pre ssu Air volume limit (Max) re 2 H ta p p hs 100 tat Ap pl ica tio n lim it Hi ati cp res su re 2H tap gh sta tic Hig Air volume limit (Max) High stat pre ic p ssu ress re 1 ure H ta 1H tap 80 80 Sta nda Air volume limit (Max) Air volume limit (Min) h st atic Sta rd H 60 nda rd H tap tap 60 13 Low Low 40 sta tic sta tic pre pre ssu ssu re H 40 re Ht ap tap Sta nda rd Sta nda rd L tap 20 20 L ta p long life filter 0 400 600 650 800 0 500 long life filter 700 780 900 Air volume(m3/h) Air volume(m3/h) 133 MMD-AP0241BH, AP0271BH 140 MMD-AP0301BH 3 140 Standard air volume:1140m /h Standard air volume:1260m3/h 120 High-s tatic p High External static pressure 100 External static pressure Ap plic atio n li mit ressu re 2H 120 -stati tap Ap 100 pli io cat n li mit c pre ssure 2H ta p Air volume limit (Min) 1H tap Air volume limit (Min) press ure 1 H tap 80 80 Stand ard H Stand tap ard H tap 60 60 Low s 40 tatic p Low ressu re H tap 40 static press ure H tap Stand ard L tap Stand ard L tap 20 20 long life filter 0 800 1000 1140 1200 0 900 long life filter 1100 1260 1300 Air volume(m3/h) Air volume(m3/h) MMD-AP0361BH 140 MMD-AP0481BH, AP0561BH Standard air volume:1620m3/h 140 Standard air volume:1980m3/h High 120 p Ap External static pressure 100 lic o ati i nl t mi -stati c pre ssure 2H ta p 120 Hig External static pressure High Air volume limit (Min) Air volume limit (Min) p ure 1H tap 80 80 13 Stan dard Sta H tap nda rd H tap 60 60 Low 40 Low static stati press c pre ure H ssur eH tap tap 40 Stan dard Stan L tap 20 dard L ta p 20 long life filter 0 1200 1620 2000 0 1400 long life filter 1800 1980 2200 Air volume(m3/h) Air volume(m3/h) 134 Air volume limit (Max) sure Air volume limit (Max) static 100 Ap c pli o ati i nl t mi h-st atic pre ssu re 2 H ta p pres High 1H ta stat ic p ress Air volume limit (Max) ressure Air volume limit (Max) High s tatic p High static · Concealed Duct High Static Pressure type MMD-AP0181H Fan motor current (A) 1. 5 Standard air volume: 900 m3/h MMD-AP0241H, AP0271H High static pressure tap Fan motor current (A) 2. 0 Standard air volume: 1, 320 m3/h High static pressure tap Medium static pressure tap Medium static pressure tap 1. 0 1. 5 0. 5 Low static pressure tap 1. 0 Low static pressure tap 300 250 Hi 50Hz 60Hz gh pre Air volume lower limit 250 50Hz 60Hz gh st Outside static pressure (Pa) Outside static pressure (Pa) 200 sta tic Air volume lower limit M ss ed ure at Air volume upper limit iu tap 200 ic m M pr 150 st ed es su at iu ic m re ta pr Lo w es st p su 150 at ic 100 st re pr at ta es ic p su re pr ta p es su 100 re ta p 50 50 0 700 800 900 1, 000 1, 100 0 1, 000 1, 100 1, 200 1, 320 1, 300 1, 400 Air volume (m3/h) 1, 500 1, 600 Air volume (m3/h) MMD-AP0361H Standard air volume: 1, 600 m3/h 2. 5 MMD-AP0481H 3. 0 Standard air volume: 2, 100 m3/h Fan motor current (A) Fan motor current (A) High static pressure tap 2. 0 High static pressure tap 2. 5 Medium static pressure tap 1. 5 2. 0 Medium static pressure tap Low static pressure tap 1. 0 1. 5 Low static pressure tap 0. 5 50Hz 60Hz Air volume upper limit 250 Air volume upper limit Hi w Lo st at ic pr es su re ta p Hig 250 Air volume lower limit Outside static pressure (Pa) Outside static pressure (Pa) 200 pre ssu re t hs Air volume lower limit ap tat ic 200 pre Me ss diu M m 150 sta ed ure tic ium tap pre ssu re tap 150 sta tic pr es su 100 Lo ws Lo w 100 re ta tat st p ic p at ic res pr su re es 50 tap su re ta 50 p 0 1, 400 1, 500 1, 600 1, 700 1, 800 0 2, 100 1, 500 2, 000 Air volume (m3/h) 2, 500 Air volume (m3/h) Air volume upper limit h st atic Hig 50Hz 60Hz 13 135 AIR SPEED CHARACTERISTICS Air Speed Distribution B 4-way air discharge cassette type MMU-AP0091H, AP0121H 2. 7m 2. 8m 2 MMU-AP0151H 0. 3m/s 0. 5m/s 0. 7m/s 1 0 m 1 2 3 4 5m MMU-AP0181H 2. 8m 2 0. 7m/s 0. 5m/s 1 0. 3m/s 0 1 2 3 4 5m 2 1 3. 6m 3 MMU-AP0241H, AP0271H 0. 7m/s 0. 5m/s 0. 3m/s 0 1 2 3 4 5m MMU-AP0301H MMU-A0361H 3. 6m 3 2 0. 5m/s 1 0. 3m/s 1 2 3 4 5m 0. 7m/s 13 MMU-A0481H 3. 6m 3 0. 7m/s 2 1 0. 5m/s 0. 3m/s 0 MMU-AP0561H 0 1 2 3 4 5m 136 Air Speed Distribution 2-way air discharge cassette type MMUAP0071WH, AP0091WH, AP0121WH 2. 7m Ceiling height (m) MMUAP0151WH, AP0181WH 2. 7m Ceiling height (m) 2 1. 0 (m) 1 0. 5 0. 3 0 1 2 0. 3 3m 2 1. 0 (m) 1 0. 5 0. 3 0 1 2 0. 3 3m Horizontal distance (m) Horizontal distance (m) MMU-AP0241WH, AP0271WH 2. 7m Ceiling height (m) 2 1. 0 0. 5 0. 3 0 1 2 3m 0. 3 (m) 1 Horizontal distance (m) MMU-AP0301WH 2. 7 Ceiling height (m) MMU-AP0481WH 2. 7 Ceiling height (m) 13 1. 0 2 1. 0 1 0. 5 0. 3 0 1 2 3 0. 3 4 2 1 0. 3 0 1 0. 5 0. 3 2 3 4 Horizontal distance (m) Horizontal distance (m) 137 Air Speed Distribution 1-way air discharge cassette type MMU-AP0071YH, AP0091YH, AP0121YH H (High wind, blowing downward) 2. 7m 2 2. 3 1 0. 9 0. 4 0 0. 6 1 0. 4 2 3m 0. 2 0 1 0. 5 0. 3 1 0. 2 2 3m 0 1 2 3m 0 1 2 3m 1 1 5. 0 2. 7m 2 L (Low wind, blowing downward) 4. 0 2. 5 2 H (High wind, blowing horizontally) 2. 7m 4. 5 1. 7 0. 4 1. 5 L (Low wind, blowing horizontally) 2. 7m 3. 0 0. 3 2 1. 5 1. 1 0. 3 MMU-AP0151SH, AP0181SH 2. 7m 2 1. 0 1 0. 3 0 1 0. 5 2 3m 0. 3 0 1 2. 7m 2 MMU-AP0241SH 1. 0 0. 5 0. 3 0. 3 1 2 3m Under ceiling type MMC-AP0181H, AP0481H MMC-AP0361H 1m 2m 1. 0 0. 3 1m 2m 3m 0. 5 3m 4m 1m 1. 0 0. 5 0. 3 2m 3m 0. 3 13 3m 1m 0. 3 2m 0. 5 4m MMC-AP015H, AP0241H, AP0271H 1m 2m 1. 0 3m 1m 138 0. 3 0. 5 3m 4m 0. 3 2m Discharge Air Speed and Air Throw High wall type MMK-AP0071H, AP0091H, AP0121H Horizontal discharge Initial speed 5 MMK-AP0151H, AP0181H Horizontal discharge Initial speed 5 High wind : 5. 0m/s Med. If there is an obstacle at the upper side of the outdoor unit, set the top end of the outdoor unit 2000mm apart from the obstacle. Limit the height of the obstacle surrounding the outdoor unit to 800mm or less from the bottom end of the outdoor unit. Draw out the pipe procured locally to the front of the outdoor unit horizontally, and keep 500mm or more between the outdoor unit and traversing pipe if placing pipe transversely. Arrange each outdoor unit in order of its capacity. > Head unit > ( Follower 3 Follower 2 4 ) > Follower (Note 3) (1000 or more) 500 or more 600 or more 500 or more (Note 3) (1000 or more) 500 600 600 or more or more or more Front side Front side Front side Front side Front side Front side Front side Front side Front side Front side Front side Front side Front side Front side Front side Front side 500 or more Front side Front side Front side Front side 750 755 anchor bolt pitch 790 (including steady leg) Branch header/Branch joint Branch header RBM-HY1043E, HY1083E, HY2043E, HY2083E Gas side B 80 n A 50 ØE ØD Insulator Liquid side B C 80 n A B ØE ØD ØD Insulator 74. 5 Model RBM-HY1043E Gas side Liquid side Gas side Liquid side Gas side Liquid side Gas side Liquid side A 380 360 700 680 385. 5 360 705. 5 680 B 90 60 90 60 95. 5 60 95. 5 60 C 83. 6 -- 83. 6 -- 89. 3 -- 89. 3 -- ØD 22. 2 15. 9 22. 2 15. 9 31. 8 15. 9 31. 8 15. 9 ØE 15. 9 9. 5 15. 9 9. 5 15. 9 9. 5 15. 9 9. 5 n 3 3 7 7 3 3 7 7 Accessory soket Q'ty 6 4, 9 4, 14 1, 18 1, 70 1 1 4, 6 1, 9 1 6 8, 9 8, 14 1, 18 1, 70 1 1 8, 6 1, 9 1 6 2, 9 2, 27 1, 59 1 1 2 6 7, 9 7, 27 1, 59 1 1 7 RBM-HY1083E RBM-HY2043E RBM-HY2083E T-shape branch joint RBM-BT13E Gas side Ø38. 1 Ø22. 2 Ø9. 5 Liquid side Balance pipe 14 10 26 39 61 Ø38. 1 Ø38. 1 Ø22. 2 Ø22. 2 Ø9. 5 10 14 78 Accessory soket Q'ty Gas side Liquid side 61 1, 62 1, 71 2, 73 2, 74 1, 14 2, 18 1, 85 2, 86 1 10 52 7 32 7 Ø9. 5 7 13 14 15 183 Y-shape branch joint RBM-BY53E, BY103E Gas side Liquid side ØD ØC ØB ØC ØD Insulator A ØD Insulator A RBM-BY203E, BY303E Gas side Liquid side ØD ØC ØC B ØD Insulator ØD ØD Insulator A Accessory soket Q'ty A Model RBM-BY53E Gas side A 250 B ØC ØD 1 2, 5 1 80 15. 9 12. 7 70 12. 7 9. 5 5 2, 54 2, 9 1, 51 1 7 1, 10 1, 13 2, 18 1, 52 2, 70 1, 89 1 2 1, 5 2, 6 1, 9 1, 54 1 16 1, 20 1, 27 1, 43 2, 48 1, 49 1, 58 1, 59 1 3 1, 6 1, 9 2 61 3, 62 2, 71 2, 73 1, 74 1, 75 1, 76 1, 77 1 4 1, 7 1, 10 1, 13 2, 14 1, 18 1, 52 1 Liquid side 200 Gas side 350 15 RBM-BY103E 80 22. 2 19. 1 80 15. 9 12. 7 80 31. 8 28. 6 80 15. 9 15. 9 Liquid side 250 Gas side 350 RBM-BY203E Liquid side 250 Gas side RBM-BY303E 400 110 38. 1 38. 1 80 22. 2 19. 1 Liquid side 350 184 ØD B B Accessory socket 1 2 5 54 Ø6. 4 24 ØB A A 2 ØB 6. 4 9. 5 29 26 Ø9. 5 Outer dia 5 Ø12. 7 Outer dia 54 31 15. 9 3 6 9 51 4 7 10 13 52 89 ØB ØB A 4 ØB 6. 4 9. 5 39 39 A ØB 7 A A 3 6 9 35 32 6. 4 9. 5 10 13 52 36 12. 7 33 15. 9 43 22. 2 53 28. 6 28 12. 7 38 19. 1 Ø15. 9 Outer dia 51 Ø19. 1 Outer dia 89 14 18 70 85 86 16 20 43 48 49 58 A 14 18 70 85 ØB ØB ØB A 16 20 ØB 40 15. 9 40 19. 1 41 12. 7 44 9. 5 50 15. 9 52 19. 1 50 22. 2 54 9. 5 52 12. 7 62 34. 9 A A 54 28. 6 43 48 49 Ø22. 2 Outer dia 86 Ø28. 6 Outer dia 58 27 59 61 62 73 74 75 76 77 A 61 62 71 73 ØB ØB ØB 55 34. 9 66 41. 3 66 28. 6 66 22. 2 66 19. 1 64 15. 9 62 12. 7 62 9. 5 74 75 76 15 A A 27 ØB 49 28. 6 59 34. 9 A Ø31. 8 Outer dia 59 Ø38. 1 Outer dia 77 185 186 16 Specifications 1 187 188 16 Specifications TECHNICAL SPECIFICATIONS Indoor unit (50Hz specifications) · 4-way Air Discharge Cassette Type Model name Cooling/Heating capacity (Note 1) Power supply Running current (A) 0. 17 0. 020 0. 30 MMU- AP0091H (kW) 2. 8/3. 2 AP0121H 3. 6/4. 0 AP0151H 4. 5/5. 0 AP0181H 5. 6/6. 3 AP0241H 7. 1/8. 0 AP0271H 8. 0/9. 0 AP0301H 9. 0/10. 0 AP0361H AP0481H AP0561H 16. 0/18. 0 50Hz 11. 2/12. 5 14. 0/16. 0 1 phase 50Hz 230V (220 ­ 240V) (Power exclusive for indoor is required. ) 0. 19 0. 022 0. 33 0. 21 0. 026 0. 36 0. 24 0. 032 0. 42 0. 35 0. 048 0. 59 0. 59 0. 070 0. 87 0. 81 0. 110 1. 23 0. 83 0. 112 1. 26 Electrical characteristics Power consumption (kW) Starting current Main unit (A) Heat-insulating material attached Model Panel color Height (mm) (mm) (mm) (mm) (mm) (mm) (kg) (kg) 20 22 4. 5 Zinc hot dipping steel plate Appearance Ceiling Panel RBC-U21PG (W) -E Moon white (Munsell/2. 5GY 9. 0/0. 5) 256 840 840 35 950 950 23 28 319 Main unit Width Depth Height Ceiling panel Width Depth Main unit Total weight Ceiling panel Heat exchanger Soundproof/Heat-insulating material Fan Fan unit Outer dimension Finned tube Non-flammable insulation Turbo fan 800 (730/680) 930 (830/790) 1, 050 (920/800) 60 Standard filter attached (Long life filter) Remote controller 1, 200 (920/820) 2, 040 2, 090 1, 320 1, 680 (1, 110/850) (1300/1, 070) (1, 430/1, 130) (1, 520/1, 230) 90 Standard air flow High (m3/h) (Mid. /Low) Motor (W) Air filter Controller Gas side Connecting Liquid side pipe (mm) (mm) Ø9. 5 Ø6. 4 Ø12. 7 Ø15. 9 Ø9. 5 25 (Polyvinyl chloride tube) Drain port (Nominal dia. mm) Sound pressure level(Note 2) (High/Mid. /Low) (dB(A)) 30/29/27 31/29/27 32/29/28 34/31/28 37/33/30 40/36/33 44/38/34 45/40/34 Note 1 : The cooling capacities and electrical characteristics are measured under the conditions speciied by JIS B 8615 based on the reference piping. The reference piping consists of 5 m of main piping and 2. 5 m of branch piping connected with 0 meter height. Note 2 : The sound level are measured in an anechoic chamber in accordance with JIS B8616. Normally, the values measured in the actual operating environment become larger than the indicated values due to the effects of external sound. Note : Rated conditions Cooling : Indoor air temperature 27°C DB/19°C WB, Outdoor air temperature 35°C DB Heating : Indoor air temperature 20°C DB, Outdoor air temperature 7°C DB/6°C WB 16 189 50Hz · 2-way Air Discharge Cassette Type Model name Cooling/Heating capacity Power supply Running current Electrical Power characteristics consumption Power factor Starting current Main unit Appearance Model Ceiling panel Panel color Height (mm) Main unit Outer dimension Ceiling panel Width Depth (mm) (mm) 830 550 8 1, 000 650 33 8 Finned tube Non-flammable insulation Centrifugal fan flow (m3/h) 570/510/450 53 780/700/600 39 Standard filter attached (Long life filter) Remote controller Gas side Connecting Liquid side pipe (mm) (mm) Ø9. 5 Ø6. 4 25 (Polyvinyl chloride tube) 34/32/30 35/33/30 38/35/33 40/37/34 45/42/39 Ø12. 7 Ø15. 9 Ø9. 5 1140/960/720 53 12 6 0/11 40/960 1 9 2 0/1 5 0 0/1 0 5 0 92 44 11 48 1, 520 1, 898 680 52 18 RBC-UW136PG (A) (kW) (%) (A) 0. 47 MMU- AP0071WH AP0091WH AP0121WH AP0151WH AP0181WH AP0241WH AP0271WH AP0301WH (kW) 2. 2/2. 5 2. 8/3. 2 3. 6/4. 0 4. 5/5. 0 5. 6/6. 3 7. 1/8. 0 8. 0/9. 0 9. 0/10. 0 AP0481WH China only 14. 0/16. 0 1 phase 50Hz 220V 0. 47 0. 106 98 0. 98 1. 16 0. 250 98 1. 33 1 phase 50Hz 230V (220 ­ 240V) (Power exclusive for indoor is required. ) 0. 31 0. 070 97 0. 60 Heat-insulating material attached 0. 32 0. 072 0. 46 0. 105 99 0. 89 Zinc hot dipping steel plate RBC-UW266PG Light ivory (Munsell 10Y 9/0. 5) 398 1, 350 RBCUW466PG 406 1, 650 620 Height (mm) Width Depth Main unit (mm) (mm) (kg) (kg) Total weight Ceiling panel Heat exchanger Soundproof/Heat-insulating material Fan Fan unit Standard air (High/Mid. /Low) Motor Air filter Controller (W) Drain port (Nominal dia. mm) Sound pressure level(Note 2) (High/Mid. /Low) (dB(A)) 16 190 Note 1 : The cooling capacities and electrical characteristics are measured under the conditions speciied by JIS B 8615 based on the reference piping. [. . . ] Refrigerant must be added on site in accordance with the actual piping length. 4 : The maximum total piping length indicates the sum of one-way piping lengths on the liquid side or gas side. System safety protection 16 228 *5 : Discharge temp. sensor, Compressor case thermostat, High-pressure Switch, Over-current sensor, High-pressure Sensor, Low pressure sensor, Over-current relay. 6 : 30m when the height difference between indoor units exceeds 3m. [. . . ]