Lennox LI036CO-180P432 Owner's Manual
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Split Air Conditioner
Thank you for selecting LENNOX air conditioners.Please read this manual
carefully before operation and keep it for further reference.
OWNER'S MANUAL
LENNOX A I R C O N D I T I O N E R S
MODEL:
LI036CI-180P432
LI036CO-180P432

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Summary of Contents for Lennox LI036CO-180P432

  • Page 1 Split Air Conditioner OWNER'S MANUAL LENNOX A I R C O N D I T I O N E R S MODEL: LI036CI-180P432 LI036CO-180P432 Thank you for selecting LENNOX air conditioners.Please read this manual carefully before operation and keep it for further reference.
  • Page 2: Table Of Contents

    Content Operation Notices Precautions......................1 Parts name ......................6 Screen Operation Guide Buttons on remote controller ................. 7 Introduction for icons on display screen ..............7 Introduction for buttons on remote controller ............8 Function introduction for combination buttons ............. 11 Operation guide ....................
  • Page 3 Explanation of Symbols Indicates a hazardous situation that, if not avoided, will result in death or serious injury. Indicates a hazardous situation that, if not avoided, could result in death or serious injury. Indicates a hazardous situation that, if not avoided, may result in minor or moderate injury.
  • Page 4: Precautions

    Precautions WARNING Operation and Maintenance This appliance is not intended for use by persons (incl- uding children) with reduced physical, sensory or men- tal capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person respon- sible for their safety.
  • Page 5 Precautions WARNING Maintenance must be performed by qualified professionals. Otherwise, it may cause personal injury or damage. Do not repair air conditioner by yourself. It may cause electric shock or damage. Please contact dealer when you need to repair air conditioner. Do not extend fingers or objects into air inlet or air outlet.
  • Page 6 Precautions WARNING Attachment Installation must be performed by qualified professionals. Otherwise, it may cause personal injury or damage. Must follow the electric safety regulations when installing the unit. According to the local safety regulations, use qualified power supply circuit and circuit break. Do install the circuit break.
  • Page 7 Precautions WARNING Do not put through the power before finishing installation. If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard. The temperature of refrigerant circuit will be high, please keep the interconnection cable away from the copper tube.
  • Page 8 Precautions WARNING For the air conditioner with plug, the plug should be reachable after finishing installation. For the air conditioner without plug, an circuit break must be installed in the line. If you need to relocate the air conditioner to another place, only the qualified person can perform the work.
  • Page 9: Parts Name

    Parts name Indoor Unit air inlet panel aux.button horizontal louver air outlet cooling power receiver indicator indicator window display H O U R ONOFF heating temp. drying indicator indicator indicator remote control (Display content or position may be different from above graphics, please refer to actual products) Outdoor Unit air inlet...
  • Page 10: Buttons On Remote Controller

    Buttons on remote controller ON/OFF button - button + button MODE button H O U R ONOFF FAN button SWING button I FEEL button button SLEEP button TEMP button TIMER-ON button CLOCK button TIMER-OFF button TURBO button LIGHT button X-FAN button Introduction for icons on display screen X-fan set fan speed...
  • Page 11: Introduction For Buttons On Remote Controller

    Introduction for buttons on remote controller Note: ● This is a general use remote controller, it could be used for the air conditioners with multifunction; For some function, which the model doesn't have, if press the corresponding button on the remote controller that the unit will keep the original running status.
  • Page 12 Introduction for buttons on remote controller FAN button This button is used for setting Fan Speed in the sequence that goes from AUTO, , to , then back to Auto. Auto High speed Low speed Medium speed SWING button Press this button to set up &down swing angle, which circularly changes as below: This remote controller is universal.
  • Page 13 Introduction for buttons on remote controller TEMP button Press this button can see indoor set temperature, indoor ambient temperature or outdoor ambient temperature on indoor unit’s display. Temperature is set circularly by remote controller as below: no display ● When selecting " "...
  • Page 14: Function Introduction For Combination Buttons

    Introduction for buttons on remote controller TURBO button Press this button to activate / deactivate the Turbo function which enables the unitto reach the preset temperature in the shortest time. In COOL mode, the unit will blow strong cooling air at super high fan speed. In HEAT mode, the unit will blow strong heating air at super high fan speed.
  • Page 15 Function introduction for combination buttons Combination of "TEMP" and "CLOCK" buttons: About Energy-saving Function Press "TEMP" and "CLOCK" simultaneously in COOL mode to start energy-saving function. Nixie tube on the remote controller displays "SE". Repeat the operation to quit the function. Combination of "TEMP"...
  • Page 16: Operation Guide

    Operation guide After putting through the power, press "ON/OFF" button on remote controller to turn on the air conditioner. Press "MODE" button to select your required mode: AUTO, COOL, DRY, FAN, HEAT. Press "+" or "-" button to set your required temperature. (Temperature can’t be adjusted under auto mode).
  • Page 17: Emergency Operation

    Emergency operation If remote controller is lost or damaged, please use auxiliary button to turn on or turn off the air conditioner. The operation in details are as below: air conditioner. When the air conditioner is turned on, it will operate under auto mode.
  • Page 18 Clean and maintenance Open panel Pull out the panel to a certain ● Use dust catcher or water to the water (below 45℃ ) to clean it, and then put it in a shady and cool place to dry. panel cover tightly. WARNING operation environment, clean frequency can be increased.
  • Page 19 Clean and maintenance NOTICE: Checking before use-season 1. Check whether air inlets and air outlets are blocked. 2. Check whether circuit break, plug and socket are in good condition. 4. Check whether mounting bracket for outdoor unit is damaged or corroded. If yes, please contact dealer.
  • Page 20: Malfunction Analysis

    Malfunction analysis General phenomenon analysis Please check below items before asking for maintenance. If the malfunction still can’t be eliminated, please contact local dealer or qualified professionals. Phenomenon Check items Solution ● Whether it's interfered severely ● Pull out the plug. Reinsert (such as static electricity, stable the plug after about 3min, and voltage)?
  • Page 21 Malfunction analysis Phenomenon Check items Solution ● Power failure? ● Wait until power recovery. ● Is plug loose? ● Reinsert the plug. ● Circuit break trips off or ● Ask professional to replace fuse is burnt out? circuit break or fuse. Air condit- ●...
  • Page 22 Malfunction analysis Phenomenon Check items Solution ● Whether there’s odour source, ● Eliminate the odour source. Odours are such as furniture and cigarette, emitted ● Clean the filter. etc. Air conditio- ● Whether there’s interference, ● Disconnect power, put back ner operates such as thunder, wireless power, and then turn on the...
  • Page 23 Malfunction analysis Error Code ● When air conditioner status is abnormal, temperature indicator on indoor unit will ation of error code. Above indicator diagram is only for reference. Please refer to Indoor actual product for the actual display indicator and position. Error code Error code Troubleshooting...
  • Page 24: Installation Dimension Diagram

    Installation dimension diagram Space to the wall At least 15cm At least 15cm Space to the wall Space to the obstruction Air inlet side 30cm Above Space to the wall 50cm Above Air outlet side Space to the wall Drainage pipe...
  • Page 25: Tools For Installation

    Tools for installation 1 Level meter 2 Screw driver 3 Impact drill 4 Drill head 5 Pipe expander 6 Torque wrench 7 Open-end wrench 8 Pipe cutter 9 Leakage detector 10 Vacuum pump 11 Pressure meter 12 Universal meter 13 Inner hexagon spanner 14 Measuring tape Note: ●...
  • Page 26: Requirements For Electric Connection

    Requirements for electric connection Safety precaution 1. Must follow the electric safety regulations when installing the unit. circuit break. 3. Make sure the power supply matches with the requirement of air conditioner. Unstable power supply or incorrect wiring or malfunction. Please install proper power supply cables before using the air conditioner.
  • Page 27: Installation Of Indoor Unit

    Installation of indoor unit Step one: choosing installation location rm it with the client. Step two: install wall-mounting frame 1. Hang the wall-mounting frame on the wall; adjust it in horizontal position with the plastic expansion particles in the holes. 3.
  • Page 28 Installation of indoor unit Indoor outdoor Note: ● Pay attention to dust prevention and take relevant safety measures when opening the hole. ● The plastic expansion particles are Φ70 5-10 not provided and should be bought locally. Step four: outlet pipe 1.
  • Page 29 Installation of indoor unit Hex nut diameter Tightening torque (N . m) open-end wrench Φ 6 15~20 Φ 9.52 30~40 union nut Φ 12 45~55 pipe Φ 16 60~65 torque wrench Φ 19 70~75 indoor pipe 4. Wrap the indoor pipe and joint of con- nection pipe with insulating pipe, and then wrap it with tape.
  • Page 30 Installation of indoor unit 2. Make the power connection wire go cable-cross through the cable-cross hole at the back hole of indoor unit and then pull it out from the front side. power connection wire 3. Remove the wire clip; connect the power connection wire to the wiring terminal with wire clip.
  • Page 31 Installation of indoor unit Step eight: bind up pipe 1. Bind up the connection pipe, power drain hose connection pipe band cord and drain hose with the band. indoor and outdoor power cord indoor unit pipe indoor power cord liquid pipe 3.
  • Page 32: Installation Of Outdoor Unit

    Installation of outdoor unit (select it according to the actual installation situation) 1. Select installation location according to the house structure. 2. Fix the support of outdoor unit on the selected location with expansion screws. Note: installing the outdoor unit. ●...
  • Page 33 Installation of outdoor unit Step four: connect indoor and outdoor pipes 1. Remove the screw cap of valve and 3. Tighten the union nut with torque aim the pipe joint at the bellmouth of wrench by referring to the sheet pipe.
  • Page 34 Installation of outdoor unit 2. Fix the power connection wire and signal control wire with wire clip (only for cooling and heating unit). Note: ● Never cut the power connection wire to prolong or shorten the distance. Step six: neaten the pipes 1.
  • Page 35: Vacuum Pumping

    Vacuum pumping Use vacuum pump 1. Remove the valve caps on the liquid valve and gas liquid valve piezometer valve and the nut of refri- gas valve gerant charging vent. refrigerant valve cap 2. Connect the charging hose charging vent of piezometer to the refri- nut of refrigerant gerant charging vent of gas...
  • Page 36: Check After Installation

    Check after installation ● Check according to the following requirement after finishing installation. Items to be checked Possible malfunction Has the unit been installed firmly? The unit may drop, shake or emit noise. Have you done the refrigerant leakage It may cause insufficient cooling test? (heating) capacity.
  • Page 37 Configuration of connection pipe 1. Standard length of connection pipe ● 5m, 7.5m, 8m. 2.Min. length of connection pipe is 3m. 3.Max. length of connection pipe and max. high difference. Max length Max length Cooling Max height Cooling Max height of connec- of connec- capacity...
  • Page 38 Configuration of connection pipe Additional refrigerant charging amount for R22, R407C, R410A and R134a Diameter of connection pipe Outdoor unit throttle Liquid pipe(mm) Gas pipe(mm) Cooling only(g/m) Cooling and heating(g/m) Φ6 Φ9.52 or Φ12 Φ6 or Φ9.52 Φ16 or Φ19 Φ12 Φ19 or Φ22.2 Φ16...
  • Page 39: Pipe Expanding Method

    Pipe expanding method Note: Improper pipe expanding is the main cause of refrigerant leakage. Please expand the pipe according to the following steps: A: Cut the pipe E: Expand the port ● Confirm the pipe length according to ● Expand the port with expander. the distance of indoor unit and hard outdoor unit.
  • Page 40: Wired Controller(Optional)

    Wired Controller(Optional) If the product you bought is equipped with wired controller, please refer to the following introductions of wired controller. 1 Displaying Part Fig1.1.1 Outline of wired controller 1.1 LCD Display of Wired Controller Fig.1.1.2 LCD display...
  • Page 41 Wired Controller(Optional) 1.2 Instruction to LCD Display Table 1.1 Symbols Description Swing function Air exchange function (this function is yet unavailable for this unit). Sleep function (Only sleep 1). Each kind of running mode of indoor unit (auto mode) Cooling mode Dry mode Fan mode Heating mode...
  • Page 42 Wired Controller(Optional) 2 Buttons 2.1 Layout of Buttons 2.2 Functions of Buttons Table 2.1 Name Function Enter/Cancel Function selection and cancellation. ▲ Running temperature setting of the indoor unit, range:16~30 ① . Timer setting, range:0.5-24 hr. ▼ ② . Setting of the high/middle/low/auto fan speed. Mode Setting of the Cooling/Heating/Fan/Dry/Auto mode of the indoor unit.
  • Page 43 Wired Controller(Optional) 3 Operation Instructions 3.1 On/Off Press On/Off to turn on the unit and turn it off by another press. Note: The state shown in Fig.3.1.1 indicates the “Off” state of the unit after power on. The state shown in Fig.3.1.2 indicates the “On” state of the unit after power on. Fig.3.1.1 “Off”...
  • Page 44 Wired Controller(Optional) 3.4 Fan Setting Under the “On” state of the unit, press Fan and then fan speed of the indoor unit will change circularly as shown in Fig.3.4.1. Middle High 3.5 Timer Setting Under on-state of the unit, Press Timer button to set timer off of the unit. Under off-state of the unit, press Timer button to set timer on of the unit in the same way.
  • Page 45 Wired Controller(Optional) Timer on setting under the “Off” state of the unit is shown as Fig.3.5.2. Fig.3.5.2 Timer on Setting under the “Off” State of the Unit Timer range: 0.5-24hr. Every press of ▲or ▼ will make the set time increased or decreased by 0.5hr.
  • Page 46 Wired Controller(Optional) 3.6 Swing Setting Swing On: Press Function under on state of the unit to activate the swing function. In this case, Swing Off: When the Swing function is on, press Function to enter the Swing setting interface,with blinking. After that, press Enter/Cancel to cancel this function. Swing setting is shown as Fig.3.6.1.
  • Page 47 Wired Controller(Optional) 3.7 Sleep Setting Sleep on: Press Function under the On state of the unit till the unit enters the Sleep setting Sleep off: When the Sleep function is activated, press Function to enter the Sleep setting status. After that, press Enter/Cancel to cancel this function. In the Cooling or Dry mode, the temperature will increase by 1°C after the unit runs under Sleep1 for 1hr and 1°C after another 1hr.After that, the unit will run at this temperature.
  • Page 48 Wired Controller(Optional) 3.8 Turbo Setting Turbo function: The unit at the high fan speed can realize quick cooling or heating so that the room temperature can quickly approach the setting value. In the Cooling or Heating mode, press Function till the unit enters the Turbo setting status and When the Turbo function is activated, press Function to enter the Turbo setting status and then press Enter/Cancel to cancel this function.
  • Page 49 Wired Controller(Optional) 3.9 E-heater Setting E-heater (auxiliary electric heating function): In the Heating mode, E-heater is allowed to be Once the wired controller or the remote controller enters the Heating mode, this function will be turned on automatically. Press Function in the Heating mode to enter the E-heater setting interface and then press Enter/Cancel to cancel this function.
  • Page 50 Wired Controller(Optional) 3.10 Blow Setting Blow function: After the unit is turned off, the water in evaporator of indoor unit will be automatically evaporated to avoid mildew. In the Cooling or Dry mode, press Function till the unit enters the Blow setting status and then press Enter/Cancel to active this function.
  • Page 51 Wired Controller(Optional) 3.11 Other Functions a. Lock Upon startup of the unit without malfunction or under the “Off” state of the unit, press ▲ and ▼ at the same time for 5s till the wired controller enters the Lock function. In this case, LCD displays After that, repress these two buttons at the same time for 5s to quit this function.
  • Page 52 Wired Controller(Optional) Fig.4.2 Fig.4.2 shows the installation steps of the wired controller, but there are some issues that need your attention. 1) Prior to the installation, please firstly cut off the power supply of the wire buried in the installation hole, that is, no operation is allowed with electricity during the whole installation. 2) Pull out the four-core twisted pair line from the installation holes and then let it go through the rectangular hole behind the soleplate of the wired controller.
  • Page 53 Wired Controller(Optional) and connection lines between the indoor and outdoor unit, with a minimum interval of 20cm, otherwise the communication of the unit will probably work abnormally. If the air conditioning unit is installed where is vulnerable to electromagnetic ② . interference,then the signal and communication lines of the wired controller must be the shielding twisted pair lines.
  • Page 54 Wired Controller(Optional) Table 5.1 Meaning of Each Error Error Error Error Error Code Code Return air temperature sensor open/ Drive board communication error short circuited evaporator temperature sensor open/ Compressor overheating protection short circuited Indoor unit liquid valve temperature Indoor and outdoor units unmatched sensor open/short circuited Indoor gas valve temperature sensor Communication line misconnected or...
  • Page 56 66129918277...

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