Yamato U-match Series Owner's Manual
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Yamato U-match Series Owner's Manual

Dc inverter floor ceiling type unit
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Owner's Manual
Original Instructions
Air Conditioners
DC Inverter U-match Series Floor Ceiling Type Unit
Models:
Indoor Unit
YFC12G4/I
YFC18G4/I
YFC24G4/I
YFC30G4/I
YFC36G4/I
YFC42G4/I
YFC48G4/I
YFC60G4/I
Outdoor Unit
YFC12G4/O
YFC18G4/O
YFC24G4/O
YFC30G4/O
YFC36G4/O
YFC42G4T/O
YFC48G4T/O
YFC60G4T/O

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  • Page 1 Owner's Manual Original Instructions Air Conditioners DC Inverter U-match Series Floor Ceiling Type Unit Models: Indoor Unit Outdoor Unit YFC12G4/I YFC12G4/O YFC18G4/I YFC18G4/O YFC24G4/I YFC24G4/O YFC30G4/I YFC30G4/O YFC36G4/I YFC36G4/O YFC42G4/I YFC42G4T/O YFC48G4T/O YFC48G4/I YFC60G4/I YFC60G4T/O...
  • Page 2 To Users Thank you for selecting our 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: 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 Exception Clauses Manufacturer will bear no responsibilities when personal injury or property loss is caused by the following reasons: Damage the product due to improper use or misuse of the product. Alter, change, maintain or use the product with other equipment without abiding by the instruction manual of manufacturer.

  • Page 4: Table Of Contents

    Contents 1 Safety Notices (Please be sure to abide them) ....1 2 Installation................5 2.1 Installation Preparation ............5 2.2 Unit Installation ..............15 2.3 Electrical Installation ............31 2.4 Check after Installation............42 2.5 Product Operating Range ............43 2.6 Test Running ................43 3 Product Introduction ............

  • Page 5: Safety Notices (Please Be Sure To Abide Them)

    DC Inverter U-match Series Floor Ceiling Type Unit 1 Safety Notices (Please be sure to abide them) SPECIAL WARNING: Be sure to comply with national gas regulations. Do not pierce or burn. Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.
  • Page 6 DC Inverter U-match Series Floor Ceiling Type Unit Before installing the air conditioner, please read the instruction manual. Before repairing the air conditioner, please read the instruction manual. The figures in this manual may be different with the material objects, please refer to the material objects for reference.
  • Page 7 DC Inverter U-match Series Floor Ceiling Type Unit WARNING! (7) If the installation space for air conditioner pipe is too small, adopt a protective measure to prevent the pipe from physical damage. (8) During installation, use the specialized accessories and components, otherwise water leakage, electric shock or fire hazard may occur.
  • Page 8 DC Inverter U-match Series Floor Ceiling Type Unit NOTES! (1) Do not put a finger or other objects into the air inlet or air return grill. (2) Please adopt safety protection measures before touching the refrigerant pipe, otherwise your hands may be hurt.

  • Page 9: Installation

    DC Inverter U-match Series Floor Ceiling Type Unit 2 Installation 2.1 Installation Preparation 2.1.1 Notice on Installation Notice on Refrigerant Concentration before Installation. This air conditioner uses R32 refrigerant. The construction area for installation, operation and storage of the air conditioner must be larger than the minimum construction area.
  • Page 10 DC Inverter U-match Series Floor Ceiling Type Unit Ceiling type Wall mounted type Floor standing type Weight Area Weight Area Weight Area (kg) (m²) (kg) (m²) (kg) (m²) 6.54 9.76 87.9 7.38 11.0 99.2 8.27 12.4 9.22 13.8 10.2 15.3 11.3...
  • Page 11 DC Inverter U-match Series Floor Ceiling Type Unit charging, keep the refrigerant tank in an upright position. After charging, stick a label on the air conditioner saying no excessive charging. The following tools will be used: 1) Liquid-level gauge; 2) Screwdriver; 3) Electric driven rotary hammer;...
  • Page 12 DC Inverter U-match Series Floor Ceiling Type Unit should be at least 1m from television and radio. This is to prevent image interference or noise (Even at a distance of 1m, a very strong electric wave may still generate noise).
  • Page 13 DC Inverter U-match Series Floor Ceiling Type Unit Indoor Unit Unit：mm Dimensions Model YFC12G4/I YFC18G4/I 1200 1142 YFC24G4/I YFC30G4/I 1200 1142 1200 1142 YFC36G4/I 1570 1512 YFC42G4/I 1570 1512 YFC48G4/I YFC60G4/I 1570 1512 NOTE! Drilling of ceiling opening and installation of air conditioner must be performed by...
  • Page 14 DC Inverter U-match Series Floor Ceiling Type Unit Outdoor Unit YFC12G4/O,YFC18G4/O,YFC24G4/O, YFC30G4/O,YFC36G4/O,YFC42G4T/O YFC48G4T/O,YFC60G4T/O Unit: mm Dimensions Model YFC12G4/O YFC18G4/O YFC24G4/O YFC30G4/O 1020 YFC36G4/O 1020 YFC42G4T/O YFC48G4T/O 1020 YFC60G4T/O 1070...
  • Page 15 DC Inverter U-match Series Floor Ceiling Type Unit 2.1.4 Diagram of Unit Installation Space and Location 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).
  • Page 16 DC Inverter U-match Series Floor Ceiling Type Unit When two or more outdoor units are to be installed side by side. Unit:mm (mm) ≥ 300 ≥ 300 ≥ 1000 A,B,C — — — ≥ 300 ≥ 300 ≥ 1000 A,B,C,E —...
  • Page 17 DC Inverter U-match Series Floor Ceiling Type Unit When outdoor units are installed in rows. Unit:mm (mm) ≤1/2H b≥250 1/2H<H ≤H b≥300 >H Prohibited...
  • Page 18 DC Inverter U-match Series Floor Ceiling Type Unit When outdoor units are installed one above another. Unit:mm 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 19: Unit Installation

    DC Inverter U-match Series Floor Ceiling Type Unit Unit:mm 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.
  • Page 20 DC Inverter U-match Series Floor Ceiling Type Unit 2.2.1.2 Indoor Unit Installation Determine the location of the hanger through the paper template, and then remove the paper template. Insert the anchor bolts into the drilled holes, and drive the pins completely into the anchor bolts with a hammer.
  • Page 21 DC Inverter U-match Series Floor Ceiling Type Unit Ceiling type Unit: mm Adjust the height of the unit to make the drain pipe slant slightly downward so that the drainage will become much smoother. Reinstall and tighten the right and left side panel.
  • Page 22 DC Inverter U-match Series Floor Ceiling Type Unit 2.2.1.3 Leveling The water level test must be done after installing the indoor unit to make the unit is horizontal, as shown below. 2.2.2 Outdoor Unit Installation 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.
  • Page 23 DC Inverter U-match Series Floor Ceiling Type Unit 2.2.3 Connection Pipe Installation 2.2.3.1 Installation Notice and Requirement on Connection Pipe Installation of Ordinary Nut and Tamperproof box. Unfold the connecting pipe and bend the connecting pipe according to the required length. Open the nut cover on the indoor unit’s pipe and align the conical mouth of the connecting pipe with the center of the indoor unit’s pipe.
  • Page 24 DC Inverter U-match Series Floor Ceiling Type Unit Size of Fitting Biggest Drop Maximum Drain Pipe Item Pipe(inch) between Pipe Inside Indoor and Length Dimension Liquid Model Outdoor (mm) Pipe Pipe Units (m) Φ3/8 YFC12G4/I Φ1/4 Φ1/2 YFC18G4/I YFC24G4/I YFC30G4/I Ф17...
  • Page 25 DC Inverter U-match Series Floor Ceiling Type Unit Outdoor unit is above the indoor unit. It’s necessary to add oil return bend and non-return bend at the lowest and highest position of the vertical pipe, as shown below: Dimensions for the making of oil return bend are as follows:...
  • Page 26 DC Inverter U-match Series Floor Ceiling Type Unit use a flaring tool to flare the mouth of connection pipe. Check whether the flaring part has cracked (see the figure below). 2.2.3.3 Pipe Bending The pipes are shaped by your hands. Be careful not to collapse them.
  • Page 27 DC Inverter U-match Series Floor Ceiling Type Unit NOTES! When connecting the tapered screw nut, first apply chilled machine oil on its inner and outer surface and then screw it up for 3~4 circles. Confirm the tightening torque by referring to the following table (If the screw nut is over-twisted, it may be damaged and cause leakage).
  • Page 28 DC Inverter U-match Series Floor Ceiling Type Unit Pipe diameter (inch) Tightening torque (N·m) Ф5/8 60-65 Ф3/4 70-75 Ф7/8 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.
  • Page 29 DC Inverter U-match Series Floor Ceiling Type Unit 2.2.4 Connection Pipe Vacuum Pumping and Leak Detection 2.2.4.1 Vacuum Pumping NOTE! Make sure the outlet of vacuum pump is away from fire source and is well-ventilated. Remove the caps of the liquid valve, gas valve and also the service port.
  • Page 30 DC Inverter U-match Series Floor Ceiling Type Unit Place back the caps of the liquid valve, gas valve and also the service port. NOTE: For large-size units, there are maintenance ports for liquid valve and gas valve. During evacuation, you may connect the two hoses of the branch valve assembly to the maintenance ports to speed up the evacuation.
  • Page 31 DC Inverter U-match Series Floor Ceiling Type Unit 2.2.5 Refrigerant Adding NOTE! Before and during operation, use an appropriate refrigerant leak detector to monitor the operation area and make sure the technicians can be well aware of any potential or actual leakage of inflammable gas. Make sure the leak detecting device is applicable to inflammable refrigerant.
  • Page 32 DC Inverter U-match Series Floor Ceiling Type Unit Keep pipe size equal to or greater than that of the connecting pipe. Install the drain piping as shown and take measures against condensation. Improperly rigged piping could lead to leaks and eventually wet furniture and belongings.
  • Page 33 DC Inverter U-match Series Floor Ceiling Type Unit Insulate the pipe clamp and the drain Tighten the clamp until the screw head is hose using heat insulation sponge. less than 4 mm from the hose. Metal clamp Metal clamp ①...
  • Page 34 DC Inverter U-match Series Floor Ceiling Type Unit 2.2.6.3 Outdoor Side Drain Pipe If the outdoor unit is underneath the indoor unit, arrange the pipeline according to the following diagram. Drain hose should be placed on the ground and its end should not be immersed into water.

  • Page 35: Electrical Installation

    DC Inverter U-match Series Floor Ceiling Type Unit 2.2.6.4 Testing of Drain Piping After piping work is finished, check if drainage flows smoothly. As shown in the figure, pour water into the drain pan from the right side to check that water flows smoothly from the drain hose.
  • Page 36 DC Inverter U-match Series Floor Ceiling Type Unit requirements: The electrical installation must be conducted by professionals in ① compliance with local laws and regulations and the instructions in this manual. Never extend the power cord. The electric circuit must be equipped with a circuit breaker and air switch both with sufficient capacity.
  • Page 37 DC Inverter U-match Series Floor Ceiling Type Unit After the electrical installation is finished, please use wire clamps to ⑪ secure the power cord, connection wire of indoor and outdoor units and the communication cords. Make sure the wires are not clamped too tight.
  • Page 38 DC Inverter U-match Series Floor Ceiling Type Unit Install a circuit breaker near the outdoor units with at least 3mm ② contact gap. The units must be able to be plugged or unplugged. Circuit breaker and power cord specifications listed in the above table ③...
  • Page 39 DC Inverter U-match Series Floor Ceiling Type Unit Use nippers to bend the solid wire into a ring that fits the terminal screw. Form a proper ring and then put it on the terminal board. Use a screwdriver to tighten up the terminal screw.
  • Page 40 DC Inverter U-match Series Floor Ceiling Type Unit For the indoor unit whose packaging materials are with the buckle magnetic ring. The engineering electric wires (live wire, neutral wire, earthing wire and communication cable) should pass through the buckle magnetic ring before entering into the unit.
  • Page 41 DC Inverter U-match Series Floor Ceiling Type Unit Buckle magnetic ring shall be added in the power line communication cord of outdoor and indoor unit. The added buckle magnetic ring shall be fixed at the outlet of power line communication cord near the outdoor unit side; detailed operation step...
  • Page 42 DC Inverter U-match Series Floor Ceiling Type Unit Wire between indoor and outdoor units. Single-phase unit: YFC12G4/O,YFC18G4/O,YFC24G4/O,YFC30G4/O YFC12G4/I+YFC12G4/O YFC18G4/I+YFC18G4/O Power cords 3×1.5mm² ① Power cords 4×1.0mm² ② Communication cords 2×0.75mm² ③ YFC24G4/I+YFC24G4/O YFC30G4/I+YFC30G4/O Power cords 3×2.5mm² ① Power cords 4×1.0mm²...
  • Page 43 DC Inverter U-match Series Floor Ceiling Type Unit Single-phase unit:YFC36G4/O YFC36G4/I+YFC36G4/O Power cords 3×4.0mm ① Power cords 4×1.0mm ② Communication cords 2×0.75mm ③ Three-phase unit:YFC42G4T/O,YFC48G4T/O,YFC60G4T/O...
  • Page 44 DC Inverter U-match Series Floor Ceiling Type Unit YFC42G4/I+YFC42G4T/O YFC48G4/I+YFC48G4T/O YFC60G4/I+YFC60G4T/O Power cords 5×1.5mm ① Power cords 4×1.0mm ② Communication cords 2×0.75mm ③ Electrical wiring of indoor unit and Electrical wiring of outdoor unit. WARNING! High and low voltage wires should be led through different rubber rings of the electric box cover.
  • Page 45 DC Inverter U-match Series Floor Ceiling Type Unit Model:YFC12G4/I,YFC18G4/I,YFC24G4/I, YFC30G4/I,YFC36G4/I,YFC42G4/I, YFC48G4/I,YFC60G4/I 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. Wire routing of outdoor unit:...

  • Page 46: Check After Installation

    DC Inverter U-match Series Floor Ceiling Type Unit Single-phase: YFC36G4/O Three-phase unit: YFC42G4T/O,YFC48G4T/O, YFC60G4T/O 2.4 Check after Installation Check Items after Installation Check items Possible events due to improper installation The unit may fall down, vibrate or produce Is the main body installed securely? noise.

  • Page 47: Product Operating Range

    DC Inverter U-match Series Floor Ceiling Type Unit Check items Possible events due to improper installation Do the specifications of wires The unit may fail or its components may get comply with the requirement? burned. Is there any obstacle blocking the...
  • Page 48 DC Inverter U-match Series Floor Ceiling Type Unit NOTES： If you use remote controller to turn off the unit and then immediately ① turn the unit on again, compressor will need 3min to restart. Even if you press “ON/OFF” button on the remote controller, it won’t be started up right away.

  • Page 49: Product Introduction

    DC Inverter U-match Series Floor Ceiling Type Unit 3 Product Introduction 3.1 Overall Layout NOTE: The connection pipe, drain pipe, power cord for this unit should be prepared by the user.

  • Page 50: Standard Accessories

    DC Inverter U-match Series Floor Ceiling Type Unit 3.2 Standard Accessories Indoor Unit Accessories Name Appearance Q'ty Usage To fix the hook on the Nut with Washer cabinet of the unit Wireless Controller + To control the indoor unit Battery...

  • Page 51: Maintenance

    DC Inverter U-match Series Floor Ceiling Type Unit 5 Maintenance 5.1 Failures Not Caused by Faults of the AC If your air conditioner fails to function normally, please first check the following items before maintenance: Problem Cause Corrective measure If you turn off the unit and then...
  • Page 52 DC Inverter U-match Series Floor Ceiling Type Unit The following situations are not operation failures. Problem Time of Occurrence Cause Mist comes If the unit is running under high from the air During operation. humidity, the wet air in the room conditioner.

  • Page 53: Error Code

    NOTE: Check the above items and adopt the corresponding corrective measures. If the air conditioner continues to function poorly, please stop the air conditioner immediately and contact YAMATO’s authorized local service center. Ask our professional service staff to check and repair the unit.
  • Page 54 DC Inverter U-match Series Floor Ceiling Type Unit Error Error Error Error code code Discharge temperature sensor Temperature drift protection error Condenser meso-temperature Driveboard ambient temperature sensor error sensor error Compressor dial code or Bus high-voltage protection jumper cap abnormal...
  • Page 55 DC Inverter U-match Series Floor Ceiling Type Unit Error Error Error Error code code DC indoor fan driver module Recycling refrigerant mode temperature sensor error DC indoor fan driver memory chip Ordinary defrosting state error DC indoor fan driver charge loop...

  • Page 56: Unit Maintenance

    DC Inverter U-match Series Floor Ceiling Type Unit States of the Indicating Lamps: Indicating Lamp of “POWER”: The indicating lamp will shine when ① power on, while it will go out when power off. Indicating Lamp of “COOL”: The indicating lamp will shine when ②...
  • Page 57 DC Inverter U-match Series Floor Ceiling Type Unit 5.3.1 Clean Air Filter Disassembly method of filter screen and electric box cover. How to clean the air filter Open the air inlet grille. Firstly unfix two buckles on the grille as shown on the picture.
  • Page 58 DC Inverter U-match Series Floor Ceiling Type Unit How to clean the air filter Disassemble the electric box cover After the right side board is removed, the electric box cover will be shown up and disassemble the fixed screws on it.

  • Page 59: Notice On Maintenance

    If the outdoor unit is rusty, coat the rusty location with paint to prevent it from expanding. 5.3.6 Components Replacement Components are available in YAMATO agency or YAMATO distributors nearby. 5.4 Notice on Maintenance 5.4.1 Information on Servicing The manual shall contain specific information for service personnel who shall be instructed to undertake the following when servicing an appliance that employs a flammable refrigerant.
  • Page 60 DC Inverter U-match Series Floor Ceiling Type Unit 5.4.1.3 General Work Area All maintenance staff and others working in the local area shall be instructed on the nature of work being carried out. Work in confined spaces shall be avoided. The area around the workspace shall be sectioned off.
  • Page 61 DC Inverter U-match Series Floor Ceiling Type Unit 5.4.1.8 Checks to the Refrigeration Equipment Where electrical components are being changed, they shall be fit for the purpose and to the correct specification. At all times the manufacturer’s maintenance and service guidelines shall be followed. If in doubt consult the manufacturer’s technical department for assistance.
  • Page 62 DC Inverter U-match Series Floor Ceiling Type Unit 5.4.2 Repairs to Sealed Components During repairs to sealed components, all electrical supplies shall be disconnected from the equipment being worked upon prior to any removal of sealed covers, etc. If it is absolutely necessary to have an electrical...
  • Page 63 DC Inverter U-match Series Floor Ceiling Type Unit 5.4.4 Cabling Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse environmental effects. The check shall also take into account the effects of ageing or continual vibration from sources such as compressors or fans.
  • Page 64 DC Inverter U-match Series Floor Ceiling Type Unit 5.4.7 Charging Procedures In addition to conventional charging procedures, the following requirements shall be followed. Ensure that contamination of different refrigerants does not occur when using charging equipment. Hoses or lines shall be as short as possible to minimize the amount of refrigerant contained in them.
  • Page 65 DC Inverter U-match Series Floor Ceiling Type Unit Pump down refrigerant system, if possible. If a vacuum is not possible, make a manifold so that refrigerant can be removed from various parts of the system. Make sure that cylinder is situated on the scales before recovery takes place.

  • Page 66: After-Sales Services

    DC Inverter U-match Series Floor Ceiling Type Unit The recovery equipment shall be in good working order with a set of instructions concerning the equipment that is at hand and shall be suitable for the recovery of flammable refrigerants. In addition, a set of calibrated weighing scales shall be available and in good working order.

This manual is also suitable for:

Yfc12g4/iYfc12g4/oYfc18g4/iYfc18g4/oYfc24g4/iYfc24g4/o ... Show all

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