Lennox PISO-TECHO Installation Manual
Lennox PISO-TECHO Installation Manual

Lennox PISO-TECHO Installation Manual

Ceiling and floor type

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INSTALLATION MANUAL

AIR CONDITIONER

CEILING AND FLOOR TYPE
For correct installation, read this manual before starting installation.
This manual may be subject to change without notice for purpose of improvement.

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Summary of Contents for Lennox PISO-TECHO

  • Page 1: Installation Manual

    INSTALLATION MANUAL AIR CONDITIONER CEILING AND FLOOR TYPE For correct installation, read this manual before starting installation. This manual may be subject to change without notice for purpose of improvement.
  • Page 2: Table Of Contents

    CONTENT Installation precaution................1 Installation place..................1 Accessories....................2 Indoor unit installation.................3 Install the connecting pipe..............7 Connect the drain pipe................9 Wiring......................10 Test operation...................15...
  • Page 3: Installation Precaution

    INSTALLATION PLACE INSTALLATION PRECAUTION To install properly, please read this manual at The Indoor Unit first. There is enough room for installation and The air conditioner must be installed by quali- maintenance. fied persons. The ceiling is horizontal, and its structure When installing the indoor unit or its tubing, can endure the weight of the indoor unit.
  • Page 4: Accessories

    ACCESSORIES Q'ty Usage Name of Accessories Qutline Owner's manual (This manual) Installation manual For wall mounting installation Hook Hanging arm For ceiling installation Tapping screw For Hook Installation Mounting screw B ST2.9x10-C-H Remote controller & Its Frame 1. Remote controller....1 Remote controller Remote controller...
  • Page 5: Indoor Unit Installation

    INDOOR UNIT INSTALLATION Installing f 10 hanging screw bolts. (4 bolts) Please refer to the following figure for the distance measurement between the screw bolts. Please install with f 10 hanging screw bolts. The handling to the ceiling varies from the constructions, consult the construction personn- els for the specific procedures.
  • Page 6 Wall Mounting Installtion D. Connecting point of refrigerant pipe (D. gas side) Drain point E. Connecting point of refrigerant pipe (E. Liquid side) Hook Chart 5 1.Fix the hook with tapping screw onto the wall.(Refer to Chart 6) Hook Tapping screw Washer <6mm Chart 6...
  • Page 7 Ceiling Installation Hanging arm Chart 7 1.Remove the side board and the grille.(Refer to Chart 8) (For models 48000 and 60000 Btu/h, do not remove the grille.) Side board Grille Chart 8 2.Locate the hanging arm on the hanging screw bolt.(Refer to Chart 9) Prepare the mounting bolts on the unit.( Refer to Chart 10) 8~13mm Screw nut...
  • Page 8 3.Hang the unit on the hanging arm by sliding backward. Securely tighten the mounting bolts on both sides.(Refer to Chart 9) Hanging screw bolt Hanging arm Mounting bolt D. Connecting point of refrigerant pipe (D.gas side) E. Connecting point of refrigerant pipe (E.
  • Page 9: Install The Connecting Pipe

    INSTALL THE CONNECTING PIPE Check whether the height drop between the indoor unit and outdoor unit, the length of refrigerant pipe, and the number of the bends meet the following requirements: The max height drop....................20m (If the height drop is more than 10m, you had better put the outdoor unit over above the indoor unit.) The length of refrigerant pipe...............less than 30m The number of bends..................Less than 15...
  • Page 10: Refrigerant Pipe Connection

    Use the market brass pipe. Be sure to use the same insulating materials when you buy the brass pipe. (More than 9mm thick) Use frozen oil Bend the pipe with thumb Make the ends straight Min-radius 100mm Chart 12 Chart 13 Chart 14 2.
  • Page 11: Connect The Drain Pipe

    CONNECT THE DRAIN PIPE 1. Install indoor unit drain pipe The outlet has PTI screw bread, Please use sealing materials and pipe sheath (fitting) when connecting PVC pipes. CAUTIONS The drain pipe of indoor unit must be heat insulated, or it will condense dew, as well as the connections of the indoor unit.
  • Page 12: Wiring

    WIRING Attaching wiring 1. The air conditioner should use separate power supply with rated voltage 2. The external power supply to the air conditioner should have ground wiring, which is linked to the ground wiring of the indoor and outdoor unit. 3.
  • Page 13 For 208-230V 3N~ 60Hz OUTDOOR UNIT type TYPE 36000Btu/h 48000Btu/h 60000Btu/h INDOOR PHASE 1-PHASE 1-PHASE 1-PHASE UNIT FREQUENCY AND VOLT 208-230V~, 60Hz 208-230V~, 60Hz 208-230V~, 60Hz POWER PHASE 3-PHASE 3-PHASE 3-PHASE OUTDOOR UNIT FREQUENCY AND VOLT 208-230V 3N~, 60Hz 208-230V 3N~, 60Hz 208-230V 3N~, 60Hz CIRCUIT BREAKER/FUSE 17.4/9.5 25/12.9...
  • Page 14 CAUTION: When wiring, please choose the corresponding chart, or it may cause damage.The signs of the terminal block of the indoor unit may be different from those in the following chat.Their signs may be respectively L N L1 N1. INDOOR UNIT L N C1 N1 24V~...
  • Page 15 INDOOR UNIT L N C1 N1 POWER 208-230V~ 60Hz 24V~ For 24000~60000Btu/h (Cooling only) type For 208-230V 3N~ 60Hz OUTDOOR UNIT type Chat 24 INDOOR UNIT L N C1 N1 24V~ POWER 208-230V~ 60Hz 24V~ For 24000~60000Btu/h (Cooling &Heating) type For 208-230V 3N~ 60Hz OUTDOOR UNIT type Chat 25...
  • Page 16 INDOOR UNIT L N C1 N1 POWER 208-230V~ 60Hz 24V~ For 24000~60000Btu/h (Cooling only) type For 380V 3N~ 60Hz OUTDOOR UNIT type Chat 26 INDOOR UNIT L N C1 N1 24V~ POWER 208-230V~ 60Hz 24V~ For 24000~60000Btu/h (Cooling &Heating) type For 380V 3N~ 60Hz OUTDOOR UNIT type Chat 27...
  • Page 17: Test Operation

    TEST OPERATION 1. The test operation must be carried out after the entire installation has been completed. 2. Please confirm the following points before the test operation: The indoor unit and outdoor unit are installed properly. Tubing and wiring are correctly completed. The refrigerant pipe system is leakage-checked.
  • Page 18 QS01I-009AW 2 0 2 00010 0 2 4 1 2 0 1 0.05. 0 7...

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