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Indoor Unit
CH-IF035NK
CH-IF050NK
CH-IF071NK
CH-IF100NK
CH-IF125NK
CH-IF140NK
CH-IF160NK
Thank you for choosing our product.
For proper operation, please read and keep this manual carefully.
If you have lost the Owner's Manual, please contact the local
agent or visit www.cooperandhunter.com or sent email to info@cooperandhunter.com or
electronic version. C&H reserves the right to interpret this manual which will be subject
to any change due to product improvement without further notice.
DC Inverter Series Floor Ceiling
Type Unit
Owner's Manual
Air Conditioners
Models:
Outdoor Unit
CH-IU035NK
CH-IU050NK
CH-IU071NK
CH-IU100NK
CH-IU125NK
CH-IU140NK
CH-IU160NK
CH-IU125NM
CH-IU140NM
CH-IU160NM

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Summary of Contents for Cooper & Hunter CH-IF035NK

  • Page 1 DC Inverter Series Floor Ceiling Type Unit Owner's Manual Air Conditioners Models: Indoor Unit Outdoor Unit CH-IF035NK CH-IU035NK CH-IF050NK CH-IU050NK CH-IF071NK CH-IU071NK CH-IF100NK CH-IU100NK CH-IU125NK CH-IF125NK CH-IF140NK CH-IU140NK CH-IF160NK CH-IU160NK CH-IU125NM CH-IU140NM CH-IU160NM Thank you for choosing our product. For proper operation, please read and keep this manual carefully.
  • Page 2 To Users Thank you for selecting Cooper&Hunter’s product. Please read this instruction manual carefully before installing and using the product, so as to master and correctly use the product. In order to guide you to correctly install and use our product and achieve expected operating effect, we hereby instruct as below: (1) This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of...
  • Page 3 necessary revision to the product from time to time due to the reason of sales or production, and reserve the right to revise the contents without further notice. (7) Indoor unit must not be installed in a laundry. (8) 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.
  • Page 4: Table Of Contents

    Contents 1 Safety Notices (Please be sure to abide) ......1 2 Product Introduction ............5 2.1 Overall Layout ................5 2.2 Product Operating Range ............6 2.3 Standard Accessories ............6 3 Installation ................7 3.1 Installation Preparation ............7 3.2 Unit Installation ..............16 3.3 Electrical Installation ............
  • Page 5: Safety Notices (Please Be Sure To Abide)

    DC Inverter Floor Ceiling Type Unit 1 Safety Notices (Please be sure to abide) SPECIAL WARNING: (1) Do not pierce or burn. (2) Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer. (3) Be aware that refrigerants may not contain an odor.
  • Page 6 DC Inverter Floor Ceiling Type Unit PROHIBITED (1) The air conditioner should be grounded to avoid electric shock. Do not connect the ground wire to gas pipe, water pipe, lightning arrester or telephone wire. (2) The appliance shall be stored in a well-ventilated area where the room size corresponds to the room area as specified for operation.
  • Page 7 DC Inverter Floor Ceiling Type Unit WARNING (11) The air conditioner can be cleaned only after it is turned off and power-disconnected, otherwise electric shock may occur. (12) The air conditioner is not intended to be cleaned or maintained by children without supervision.
  • Page 8 DC Inverter Floor Ceiling Type Unit NOTICE (5) Please select the proper copper pipe according to the requirement for pipe thickness. (6) Indoor unit can only be installed indoors while outdoor unit can be installed either indoors or outdoors. Never install the air conditioner in the following places: 1) Places with oil smoke or volatile liquid: plastic parts may deteriorate and fall off or even cause water leakage.
  • Page 9: Product Introduction

    DC Inverter Floor Ceiling Type Unit 2 Product Introduction 2.1 Overall Layout NOTICE: The connection pipe, drain pipe, power cord, and duct for this unit should be prepared by the user.
  • Page 10: Product Operating Range

    DC Inverter Floor Ceiling Type Unit 2.2 Product Operating Range Cooling Heating Outdoor temperature DB(°C) -15~48 -15~24 Indoor temperature DB/WB(°C) 32/23 27/- (Maximum) 2.3 Standard Accessories Indoor Unit Accessories Name Appearance Q'ty Usage To fix the hook on the Nut with Washer cabinet of the unit.
  • Page 11: Installation

    DC Inverter U-match Ceiling Type Unit 3 Installation 3.1 Installation Preparation 3.1.1 Selection of Installation Location WARNING (1) If the outdoor unit will be exposed in strong wind, it must be securely located, otherwise it may fall down. (2) Install the air conditioner at a place where the inclination is less than 5°. (3) Do not install the unit at a place with direct sunlight.
  • Page 12 DC Inverter Floor Ceiling Type Unit Selection of Installation Location for Outdoor Unit (Select a location pursuant to the following condition). (1) Noise and air flow produced by the outdoor unit will not disturb the neighbors. (2) Select a location that is safe and away from animals and plants. If not, please add safety fences to protect the unit.
  • Page 13 DC Inverter Floor Ceiling Type Unit (1) Indoor Unit NOTICE Drilling of ceiling opening and installation of air conditioner must be performed by professionals! Unit:mm Dimensions Model CH-IF035NK CH-IF050NK CH-IF071NK 1200 1142 CH-IF100NK 1200 1142 CH-IF125NK 1200 1142 CH-IF140NK 1570...
  • Page 14 DC Inverter Floor Ceiling Type Unit (2) Outdoor Unit CH-IU035NK, CH-IU050NK, CH-IU071NK, CH-IU100NK.
  • Page 15 DC Inverter Floor Ceiling Type Unit CH-IU125NK, CH-IU140NK, CH-IU160NK, CH-IU125NM, CH-IU140NM, CH-IU160NM. Unit: mm Dimensions Model CH-IU035NK CH-IU050NK CH-IU071NK CH-IU100NK 1002 CH-IU125NK CH-IU125NM CH-IU140NK CH-IU140NM CH-IU160NK CH-IU160NM...
  • Page 16 DC Inverter Floor Ceiling Type Unit 3.1.3 Diagram of Unit Installation Space and Location (1) Diagram of installation space and location for outdoor unit (Notice: for best performance of the outdoor unit, make sure its installation space conforms to the following installation dimensions). 1) When one outdoor unit is to be installed.
  • Page 17 DC Inverter Floor Ceiling Type Unit 2) When two or more outdoor units are to be installed side by side. (mm) ≥300 ≥300 ≥1000 A,B,C — ≥300 ≥300 ≥1000 ≥1000 A,B,C,E — ≥2000 — ≥2000 ≥1000 — <H >H ≥300 ≥2000 ≤1/2 H ≥250...
  • Page 18 DC Inverter Floor Ceiling Type Unit 3) When outdoor units are installed in rows. ≥ 200 ≥ 200 ≥ 2000 ≥400 ≥400 (mm) ≤1/2 H b≥250 1/2 H<H ≤H b≥300 >H Prohibited...
  • Page 19 DC Inverter Floor Ceiling Type Unit 4) When outdoor units are installed one above another. Unit: mm 2000 (2) Diagram of installation location and space for indoor unit (Notice: for the best performance of indoor unit, make sure its installation space conforms to the following installation dimensions).
  • Page 20: Unit Installation

    DC Inverter Floor Ceiling Type Unit Floor type Unit: mm Ceiling type Install the unit where the drain pipe can be easily installed. The space from the unit to the ceiling should be kept as much as possible so as for more convenient service. 3.2 Unit Installation 3.2.1 Indoor Unit Installation 3.2.1.1 Preparation for Installing the Indoor Unit...
  • Page 21 DC Inverter Floor Ceiling Type Unit 3.2.1.2 Indoor Unit Installation (1) Determine the location of the hanger through the paper template, and then remove the paper template. Paper template (2) Insert the anchor bolts into the drilled holes, and drive the pins completely into the anchor bolts with a hammer.
  • Page 22 DC Inverter Floor Ceiling Type Unit Ceiling type Unit: mm Hanger Hanger Left side panel Left side panel Right side panel Right side panel (6) Adjust the height of the unit to make the drain pipe slant slightly downward so that the drainage will become much smoother. 3.2.1.3 Leveling The water level test must be done after installing the indoor unit to make the unit is horizontal, as shown below.
  • Page 23 DC Inverter Floor Ceiling Type Unit 3.2.2 Outdoor Unit Installation (1) If the outdoor unit is installed on a solid ground such as concrete, use M10 screw bolts and nuts to secure the unit and make sure the unit stands erect and level. (2) Do not install it on top of the building.
  • Page 24 (Outer Pipe(Inch) Item Maximum between Dimension × Pipe Indoor and Wall Liquid Model Length(m) Outdoor Thickness) Pipe Pipe Units (m) (mm) CH-IF035NK CH-IU035NK CH-IF050NK CH-IU050NK CH-IF071NK CH-IU071NK CH-IF100NK Ф17×1.5 CH-IU100NK CH-IF125NK CH-IU125NK CH-IU125NM CH-IF140NK CH-IU140NK CH-IU140NM CH-IF160NK CH-IU160NK CH-IU160NM Connection pipe should adopt water-proof insulating material. Its wall thickness should be 0.5-1.0mm and the pipe wall should be able to withstand 6.0MPa.
  • Page 25 DC Inverter Floor Ceiling Type Unit The requirement on the adding of oil return bend is as below: (1) Outdoor unit is beneath the indoor unit. There’s no need to add non-return bend at the lowest or highest position of the vertical pipe, as shown below: Indoor unit Indoor unit...
  • Page 26 DC Inverter Floor Ceiling Type Unit Dimensions for the making of oil return bend are as follows: B(mm) C(mm) Ф9 ≥20 ≤150 Ф12 ≥26 ≤150 Ф16 ≥33 ≤150 3.2.3.2 Pipe Flaring (1) Cut the connection pipe with a pipe cutter. (2) The mouth of connection pipe should face downward.
  • Page 27 DC Inverter Floor Ceiling Type Unit (3) If the pipe is repeatedly bent or extended, it will become hard and difficult to be bent or extended. So do not bend or extend the pipe for more than 3 times. (4) When bending the pipe, do not bend it excessively, otherwise it will get Pipe broken.
  • Page 28 DC Inverter Floor Ceiling Type Unit Pipe diameter (in.) Tightening torque (N·m) 15-30 35-40 45-50 60-65 70-75 80-85 Screw on the flare nut of the flaring connecting pipe on the outdoor unit valve. The method of screwing the flare nut is the same with that for indoor unit. Gas pipe Liquid pipe Pipe...
  • Page 29 Meanwhile, the switch at the high pressure side of the manifold valve assembly should be kept closed, otherwise evacuation would fail. (5) The evacuation duration depends on the unit’s capacity generally. Model Time(min) CH-IF035NK CH-IF050NK CH-IF071NK CH-IF100NK CH-IF125NK...
  • Page 30 DC Inverter Floor Ceiling Type Unit Model Time(min) CH-IF140NK CH-IF160NK And verify if the pressure gauge at the low pressure side of the manifold valve assembly reads -0.1Mpa (-75cmHg), if not, it indicates there is leak somewhere. Then, close the switch fully and then stop the vacuum pump. (6) Wait for 10min to see if the system pressure can remain unchanged.
  • Page 31 DC Inverter Floor Ceiling Type Unit 3.2.5 Refrigerant Adding See the following table for the amount of additional refrigerant. Unnecessary Item Standard Additional Refrigerant Charge Pipe Model Pipe Length Amount for Extra Pipe Length CH-IU035NK 22 g/m CH-IU050NK ≤7.0m CH-IU071NK 5.0m 30 g/m CH-IU100NK...
  • Page 32 DC Inverter Floor Ceiling Type Unit Indoor unit Extension drain piping drain hose (commercially available) Insulating tube Insulating tape (commercially (accessory) available) (4) Connect the drain hose. (5) Installing the Drain Pipes. 1) For determining the position of the drain hose, perform the following procedures.
  • Page 33 DC Inverter Floor Ceiling Type Unit (7) After connecting the local drain hose, tape the slits of the heat insulation tube. (8) Connect the drain hose to the local drain pipe. Position the inter connecting wire in the same direction as the piping. 3.2.6.2 Connecting the Drain Hose (1) Connect the extension auxiliary pipe to the local piping.
  • Page 34 DC Inverter Floor Ceiling Type Unit (2) If the outdoor unit is above the indoor unit, arrange the pipeline according to the following diagram. 1) Wind the insulating tape from bottom to top. 2) The whole pipeline should be wound together to avoid water returning to the room.
  • Page 35: Electrical Installation

    DC Inverter Floor Ceiling Type Unit Ceiling type Floor type 3.3 Electrical Installation 3.3.1 Requirement and Notice on Electrical Installation WARNING: The electrical installation for the air conditioner should observe the following requirements: ①. The electrical installation must be conducted by professionals in compliance with local laws and regulations and the instructions in this manual.
  • Page 36 DC Inverter Floor Ceiling Type Unit the communication cords can’t directly contact any hot objects. For example: they must not contact chimney pipes, warm gas pipes or other hot objects. ⑥. The external power cord, communication cords, and the connection wire of indoor and outdoor units must not be squeezed.
  • Page 37 DC Inverter Floor Ceiling Type Unit Circuit Min. sectional Power supply breaker area of power Model capacity cord V/Ph/Hz CH-IF035NK CH-IF050NK CH-IF071NK 220-240V ~50/60Hz CH-IF100NK CH-IF125NK CH-IF140NK CH-IF160NK CH-IF125NM CH-IF140NM 380-415V 3N~50/60Hz CH-IF160NM NOTICE: ①. Fuse is located on the main board.
  • Page 38 DC Inverter Floor Ceiling Type Unit between wired control and indoor unit. The maximum length is 30m. Please select a proper length according to local conditions. Communication cords must not be twisted together. To be in compliance EN 55014,it is necessary to use 7.5 meters long wire. ⑧.
  • Page 39 DC Inverter Floor Ceiling Type Unit (3) How to connect the connection wire and power cord: Lead the connection wire and power cord through the insulation tube. Then fix the wires with wire clamps (as shown in the next figure). Warning (1) Before working, please check whether the indoor and outdoor units are powered on.
  • Page 40 Breaker Breaker Power:220-240V ~50/60Hz Power:220-240V ~50/60Hz Outdoor Unit Indoor Unit Wired Controller Breaker Power:220-240V ~50/60Hz Power:220-240V ~50/60Hz CH-IF035NK+CH-IU035NK CH-IF050NK+CH-IU050NK ① . Power cord 3×1.5mm² ② . Power cord 3×1.0mm² ③ . Communication Cords 2×0.75mm ④ . Communication Cords 2×0.75mm CH-IF071NK+CH-IU071NK CH-IU100NK+CH-IU100NK ①.
  • Page 41 DC Inverter Floor Ceiling Type Unit Single-phase unit: CH-IU125NK, CH-IU140NK, CH-IU160NK. Outdoor Unit Indoor Unit Wired Controller Breaker Breaker Power:220-240V ~50/60Hz Power:220-240V ~50/60Hz Outdoor Unit Indoor Unit Wired Controller Breaker Power:220-240V ~50/60Hz Power:220-240V ~50/60Hz CH-IF125NK+CH-IU125NK CH-IF140NK+CH-IU140NK ①. Power cord 3×4.0mm² ②.
  • Page 42 DC Inverter Floor Ceiling Type Unit Three-phase unit:CH-IU125NM,CH-IU140NM,CH-IU160NM. Outdoor Unit Indoor Unit Wired Controller Breaker Breaker Power:220-240V ~50/60Hz Power:380-415V 3N ~ 50/60Hz Outdoor Unit Indoor Unit Wired Controller Breaker Power:220-240V ~ 50/60Hz Power:380-415V 3N ~ 50/60Hz CH-IU125NK +CH-IU125NM CH-IU140NK +CH-IU140NM CH-IU160NK +CH-IU160NM ①.
  • Page 43 DC Inverter Floor Ceiling Type Unit (5) Electrical wiring of indoor unit and Electrical wiring of outdoor unit. Warning (1) High and low voltage wires should be led through different rubber rings of the electric box cover. (2) Do not bundle up the connection wire and communication wire of wired control or lay them side by side, otherwise errors will occur.
  • Page 44 DC Inverter Floor Ceiling Type Unit 2) Outdoor side Remove the big handle/front panel of the outdoor unit and insert one end of the communication cord and the power cord to the terminal board. Single- phase: CH-IU35NK, CH-IU50NK, CH-IU71NK, CH-IU100NK. A.
  • Page 45 DC Inverter Floor Ceiling Type Unit Single-phase: CH-IU125NK, CH-IU140NK, CH-IU160NK. A. Wire routing of separated power supply for single phase. The communication wire gets in from the upper hole The power cords of outdoor unit and indoor unit get in from the lower hole.
  • Page 46: Check After Installation

    DC Inverter Floor Ceiling Type Unit Three-phase: CH-IU125NM, CH-IU140NM, CH-IU160NM. A. Wire routing of separated power supply for three phase. B. Wire routing of unified power supply for three-phase. Power cord should be secured along with the right side plate and fixed to the hook with a wire clamp so as to avoid contacting the pipeline.
  • Page 47: Test Running

    DC Inverter Floor Ceiling Type Unit Check items. Possible events due to improper installation. Has the unit been safely Risk of electric leakage. grounded? Do the specifications of wires The unit may fail or its components may get comply with the requirement? burned.
  • Page 48: Installation Of Controller

    DC Inverter Floor Ceiling Type Unit button on the remote control, it won’t be started up right away. ②. If there’s no display on the wired control, it’s probably because the connection wire between the indoor unit and wired control is not connected. Please check again.
  • Page 49: Error Code

    DC Inverter Floor Ceiling Type Unit 5.2 Error Code WARNING (1) If abnormal things (for example, awful smell) occur, please stop the unit immediately and disconnect power. Then contact C&H’s authorized service center. If the unit continues to run in abnormal situations, it may get damaged and cause electric shock or fire hazard.
  • Page 50 DC Inverter Floor Ceiling Type Unit Number Error code Error IDU and ODU unmatched 4–way valve switch-over error Driver reset protection Over-current protection Master control and driver communication error Driver module sensor error Driver module high temperature protection Zero-crossing protection AC current protection Driver current error Sensor connection protection...
  • Page 51: Unit Maintenance

    DC Inverter Floor Ceiling Type Unit is activated, while it will go out when “TIMER” is deactivated or the set. 5.3 Unit Maintenance 5.3.1 Clean Air Filter (1) If the air conditioner is used at a dusty place, clean the air filter regularly. (once every half a year) How to clean the air filter (1) Open the air inlet grille.
  • Page 52 DC Inverter Floor Ceiling Type Unit How to clean the air filter (3) Disassemble the left and right side board 1) After the grille is removed, use a screwdriver to remove the screws shown on the picture. 2) Push the side plate as per the arrowed direction and take it down.
  • Page 53: After-Sales Services

    DC Inverter Floor Ceiling Type Unit 5.3.2 Heat Exchanger of Outdoor Unit Conduct cleaning for the heat exchanger of outdoor unit periodically, clean it once at least in every two months. Clean the dust and sundries on the surface of the heat exchanger with dust collector and nylon brush, if there’s compressed air source;...

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