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Related Manuals for Yamato YC12G4/I
Summary of Contents for Yamato YC12G4/I
- Page 1 Owner's Manual Original Instructions Air Conditioners DC Inverter U-match Series Cassette Type Unit Models: Indoor Unit Outdoor Unit YC12G4/I YC12G4/O YC18G4/I YC18G4/O YC24G4/I YC24G4/O YC30G4/I YC30G4/O YC42G4/I YC42G4T/O YC48G4/I YC48G4T/O YC60G4/I YC60G4T/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.
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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 ..............16 2.3 Electrical Installation ............36 2.4 Check after Installation............46 2.5 Product Operating Range ............46 2.6 Test Running ................47 3 Product Introduction ............ -
Page 5: Safety Notices (Please Be Sure To Abide Them)
DC Inverter U-match Series Cassette 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 Cassette 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 Cassette Type Unit WARNING! (8) During installation, use the specialized accessories and components, otherwise water leakage, electric shock or fire hazard may occur. (9) Please install the air conditioner in a secure place that can withstand the weight of air conditioner.
- Page 8 DC Inverter U-match Series Cassette 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. (3) Please arrange the drain pipe according to the instruction manual.
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Page 9: Installation
DC Inverter U-match Series Cassette 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 Cassette 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 16.8 12.4 18.5...
- Page 11 DC Inverter U-match Series Cassette Type Unit Please use the charging machine specialized for R32 refrigerant before 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 Cassette Type Unit Indoor unit, power cord, connecting wires and communication cords 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 Cassette Type Unit Indoor Unit YC12G4/I; YC18G4/I Unit: mm Dimensions Model YC12G4/I YC18G4/I...
- Page 14 DC Inverter U-match Series Cassette Type Unit YC24G4/I,YC30G4/I,YC42G4/I, YC48G4/I, YC60G4/I Unit：mm Dimensions Model YC24G4/I YC30G4/I YC42G4/I YC48G4/I YC60G4/I NOTES! (1) Drilling of ceiling opening and installation of air conditioner must be performed by professionals! (2) Please refer to the installation cardboard for the dimension of drilling hole of lifting screw of cassette unit.
- Page 15 DC Inverter U-match Series Cassette Type Unit Outdoor Unit YC12G4/O, YC18G4/O, YC24G4/O, YC30G4/O, YC42G4T/O YC48G4T/O,YC60G4T/O Unit: mm Dimensions Model YC12G4/O YC18G4/O YC24G4/O YC30G4/O 1020 YC42G4T/O YC48G4T/O 1020 YC60G4T/O 1070...
- Page 16 DC Inverter U-match Series Cassette 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). When one outdoor unit is to be installed.
- Page 17 DC Inverter U-match Series Cassette Type Unit When two or more outdoor units are to be installed side by side. Unit:mm (mm) A,B,C — ≥300 ≥300 ≥1000 — — A,B,C,E — ≥300 ≥300 ≥1000 — ≥1000 — — — — ≥2000 —...
- Page 18 DC Inverter U-match Series Cassette 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 19 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). Unit:mm Model H(mm) YC12G4/I YC18G4/I YC24G4/I YC30G4/I YC42G4/I...
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Page 20: Unit Installation
DC Inverter U-match Series Cassette Type Unit Model H(mm) YC48G4/I YC60G4/I 2.2 Unit Installation 2.2.1 Indoor Unit Installation In order to make the front panel cover 20mm of the ceiling, the distance between the ceiling and the unit should be 35mm or less. If the distance between the ceiling and the unit is above 35mm, add some ceiling material to shorten the distance. - Page 21 DC Inverter U-match Series Cassette Type Unit (2) Installing the Main Body Unit. 1) Install the hoisting stand on the hoisting screw by using nuts and gaskets at both the upper and lower sides of the hoisting stand. To prevent the gasket from breaking off, a gasket anchor board can be helpful.
- Page 22 DC Inverter U-match Series Cassette Type Unit 2.2.1.2 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 Cassette 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 Item Pipe(inch) Maximum between pipe length indoor and Liquid Model Gas pipe outdoor units pipe Φ3/8 YC12G4/I Ф1/4 YC18G4/I Φ1/2 YC24G4/I YC30G4/I Φ3/8 Φ5/8 YC42G4/I YC48G4/I YC60G4/I 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. The longer the connection pipe is, the worse cooling and heating performance it has.
- Page 25 DC Inverter U-match Series Cassette 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: A(inch) B(mm) C(mm)
- Page 26 DC Inverter U-match Series Cassette Type Unit the bag of indoor unit accessories. Then fit the flare nut on the pipe and 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.
- Page 27 DC Inverter U-match Series Cassette Type Unit 2.2.3.4 Connection Pipe of Indoor and Outdoor Units NOTES! (1) Connect the pipe to the unit. Please follow the instructions stated in the figures below. Use both spanner and torque wrench. (2) 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.
- Page 28 DC Inverter U-match Series Cassette Type Unit Pipe diameter (inch) Tightening torque (N·m) Ф1/4 15-30 Ф3/8 35-40 Ф1/2 45-50 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 Meanwhile, the switch at the high pressure side of the manifold valve assembly should be kept closed, otherwise evacuation would fail. The evacuation duration depends on the unit’s capacity generally. Model Time(min) YC12G4/I YC18G4/I YC24G4/I YC30G4/I...
- Page 30 DC Inverter U-match Series Cassette Type Unit Model Time(min) YC42G4/I YC48G4/I YC60G4/I And verify if the pressure gauge at the low pressure side of the manifold valve assembly reads -0.1MPa (-750mmHg), if not, it indicates there is leak somewhere. Then, close the switch fully and then stop the vacuum pump. Wait for 10min to see if the system pressure can remain unchanged.
- Page 31 DC Inverter U-match Series Cassette Type Unit sensitivity may not be adequate, or may need re-calibration. (Detection equipment shall be calibrated in a refrigerant-free area). Ensure that the detector is not a potential source of ignition and is suitable for the refrigerant used.
- Page 32 DC Inverter U-match Series Cassette Type Unit Unnecessary Item Standard Additional Refrigerant Charge Pipe Model Pipe Length Amount for Extra Pipe Length YC48G4T/O 7.5m ≤9.5m 35g/m YC60G4T/O 2.2.6 Installation of Drain Pipe It is not allowed to connect the condensate drain pipe into waste pipe or other pipelines which are likely to produce corrosive or peculiar smell to prevent the smell from entering indoors or corrupt the unit.
- Page 33 Drain hose allowed to apply PVC or other related ② Grey tape glue in the joints of two ends of drain ③ pipe. Metal clamp ① Insulation sponge ② Indoor Unit A mm YC12G4/I YC18G4/I YC24G4/I ≤15 YC30G4/I YC42G4/I YC48G4/I YC60G4/I...
- Page 34 DC Inverter U-match Series Cassette Type Unit 2.2.6.2 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 DC Inverter U-match Series Cassette Type Unit 2.2.6.3 Notice on Drain Lift Pipe The drain lift pipe should be 1100mm or less away from ground, as shown below. Unit:mm If multiple drain pipes are to be converged, please install according to the following process.
- Page 36 DC Inverter U-match Series Cassette Type Unit NOTICE: Specifications of the converging drain pipes should be applicable to the operating capacity of the units. Drain branch should be connected to the vertical or horizontal part of the main drain pipe. Horizontal pipe should not be connected to the vertical pipe that is on the same level.
- Page 37 DC Inverter U-match Series Cassette Type Unit See the following diagram for the method of water filling. Unit: mm 2.2.7 Installing the Front Panel As shown below, take off the 4 corner covers from the front panel and loose the hexagon screw bolts on the 4 fasteners to the maximum.
- Page 38 DC Inverter U-match Series Cassette Type Unit front panel and the ceiling is 5-8mm. NOTICE: (1) Improper screw looseness will lead to the following problem. (2) After the screws are tightened, if there is still a gap between the ceiling and the decorative front panel, adjust the height of the unit again (as shown below).
- Page 39 DC Inverter U-match Series Cassette Type Unit (3) After installing the front panel, make sure there’s no gap between the unit and the front panel. (4) Circuit of the decorative front panel. (5) Connect the front panel to the main body through the corresponding slots. Match the slots according to their different size.
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Page 40: Electrical Installation
DC Inverter U-match Series Cassette Type Unit WARNING! After installing the panel, the insulated protective cover with the thickness of 1mm shall be used to wrap the wiring terminal, Tighten the insulated glue cover on both sides with bonding tie to fix it. 2.3 Electrical Installation 2.3.1 Requirement and Notice on Electrical Installation WARNING:... - Page 41 Do not change the power cables arbitrarily. Do not change the length and terminals of the power cables. If you want to change the power cables, please contact YAMATO’s local service center. Wiring terminals should be connected firmly to the terminal board.
- Page 42 DC Inverter U-match Series Cassette Type Unit Circuit Min. sectional area Power supply breaker of power cord Model capacity V/Ph/Hz mm² YC42G4T/O 380-415V ~50/60Hz YC48G4T/O YC60G4T/O NOTES: Fuse is located on the main board. ① Install a circuit breaker near the outdoor units with at least 3mm ②...
- Page 43 DC Inverter U-match Series Cassette Type Unit The wire gauge of communication cord should not be less than ⑧ 0.75mm². It’s recommended to use 0.75mm² power cords as the communication cords. It's required to adopt the shielded wire for the communication cable ⑨...
- Page 44 The magnetic ring should be fixed reliably by cable tie. The engineering wires and buckle magnetic ring are not allowed to touch sharp edges. The number of magnetic rings is based on 3.2. (Note：Only for YC12G4/I, YC18G4/I, YC42G4/I, YC48G4/I, YC60G4/I units)
- Page 45 DC Inverter U-match Series Cassette 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 for the magnetic buckle is as follow: Limit the fixation location of buckle magnetic ring at the outlet of power line communication cord near the outdoor unit side with a cable tie (refer...
- Page 46 DC Inverter U-match Series Cassette Type Unit WARNING! Match the terminal numbers and wire colors with the colors indicated in the indoor unit. Wrong wire connection may burn the electrical components. Connect the wires firmly to the wiring box. Incomplete installation may lead to fire hazard.
- Page 47 DC Inverter U-match Series Cassette Type Unit YC12G4/I+YC12G4/O YC18G4/I+YC18G4/O Power cords 3×1.5mm² ① Power cords 4×1.0mm² ② Communication cords 2×0.75mm² ③ YC24G4/I+YC24G4/O YC30G4/I+YC30G4/O Power cords 3×2.5mm² ① Power cords 4×1.0mm² ② Communication cords 2×0.75mm² ③ Three-phase unit: YC42G4T/O, YC48G4T/O,YC60G4T/O YC42G4/I+YC42G4T/O...
- Page 48 DC Inverter U-match Series Cassette Type Unit 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. Do not bundle up the connection wire and communication wire of wired controller or lay them side by side, otherwise errors will occur.
- Page 49 DC Inverter U-match Series Cassette Type Unit 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： YC12G4/O,YC18G4/O,YC24G4/O, YC30G4/O...
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Page 50: Check After Installation
DC Inverter U-match Series Cassette Type Unit YC42G4T/O,YC48G4T/O, YC60G4T/O 2.4 Check after Installation Check Items after Installation Possible events due to improper Check items installation The unit may fall down, vibrate or Is the main body installed securely? produce noise. Cooling capacity may become Did you do water leakage test? unsatisfactory. -
Page 51: Test Running
DC Inverter U-match Series Cassette Type Unit 2.6 Test Running Preparation before connecting the power. Power must not be connected if the installation work is not completed. Control circuit is correct and all the wires are firmly connected. Cut-off valves of the gas pipe and liquid pipe are open. The inside of the unit should be clean. -
Page 52: Product Introduction
DC Inverter U-match Series Cassette 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 53: Standard Accessories
Heat-Shringkable Connect the front panel to Bushing the main body To prevent the communication wire from reaching out the electric Flannelette raceway (only YC12G4/I, YC18G4/I) Connect the panel and Bolt Assembly body(only YC12G4/I, YC18G4/I) For engineering installation. Buckle magnetic (only YC12G4/I,... -
Page 54: Installation Of Controller
DC Inverter U-match Series Cassette Type Unit Indoor Unit Accessories Name Appearance Q'ty Usage For engineering Buckle magnetic installation. ring+ Cable tie (only YC42G4/I) Outdoor Unit Accessories Name Appearance Q'ty Usage 0 or 3 or To plug the unused Drain Plug 4 or 5 drain hole Drainage... -
Page 55: Maintenance
DC Inverter U-match Series Cassette 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 immediately turn it on, in order to protect the compressor and Please wait for a while. - Page 56 DC Inverter U-match Series Cassette Type Unit The following situations are not operation failures. Problem Time of occurrence Cause If the unit is running under Mist comes from high humidity, the wet air in the air During operation. the room will be quickly conditioner.
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Page 57: 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 58 DC Inverter U-match Series Cassette Type Unit Error Error Error Error code code IDU jumper cap error ODU AC current protection 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 Compressor driver memory...
- Page 59 DC Inverter U-match Series Cassette Type Unit Error Error Error Error code code Outdoor ambient temperature DC indoor fan driver module high sensor error temperature protection 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...
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Page 60: Unit Maintenance
DC Inverter U-match Series Cassette Type Unit 5.3 Unit Maintenance NOTES! Before cleaning, please make sure the unit is stopped. Cut the circuit breaker and remove the power socket, otherwise, electric shock may occur. Do not wash the air conditioner with water, otherwise fire hazard or electric shock may occur. - Page 61 DC Inverter U-match Series Cassette Type Unit How to clean the air filter (3) Disassemble the air purifier Remove the air purifier after removing the fixed screws on it. (4) Cleaning the filer screen Use vacuum cleaner to remove dust or rinse the filter. If the filter is very dirty (greasy), use warm water (below 45°C)
- Page 62 DC Inverter U-match Series Cassette Type Unit How to clean the air intake grill (3) Take out the air intake grill. (Open the air intake grill at an angle of 45 degrees, and then lift it up). (4) Cleaning Use soft brush, water, neutral detergent to clean.
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Page 63: Notice On Maintenance
If the outdoor unit is rusty, coat the rusty location with paint to prevent it from expanding. 5.3.7 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 64 DC Inverter U-match Series Cassette Type Unit 5.4.1.4 Checking for Presence of Refrigerant The area shall be checked with an appropriate refrigerant detector prior to and during work, to ensure the technician is aware of potentially flammable atmospheres. Ensure that the leak detection equipment being used is suitable for use with flammable refrigerants, i.e.
- Page 65 DC Inverter U-match Series Cassette Type Unit refrigerants: The charge size is in accordance with the room size within which the refrigerant containing parts are installed. The ventilation machinery and outlets are operating adequately and are not obstructed. If an indirect refrigerating circuit is being used, the secondary circuit shall be checked for the presence of refrigerant.
- Page 66 DC Inverter U-match Series Cassette Type Unit Particular attention shall be paid to the following to ensure that by working on electrical components, the casing is not altered in such a way that the level of protection is affected. This shall include damage to cables, excessive number of connections, terminals not made to original specification, damage to seals, incorrect fitting of glands, etc.
- Page 67 DC Inverter U-match Series Cassette Type Unit shall be adhered to： Remove refrigerant. Purge the circuit with inert gas. Evacuate. Purge again with inert gas. Open the circuit by cutting or brazing. The refrigerant charge shall be recovered into the correct recovery cylinders. The system shall be “flushed”...
- Page 68 DC Inverter U-match Series Cassette Type Unit 5.4.8 Decommissioning Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment and all its detail. It is recommended good practice that all refrigerants are recovered safely. Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of reclaimed refrigerant.
- Page 69 DC Inverter U-match Series Cassette Type Unit 5.4.9 Labelling Equipment shall be labelled stating that it has been de-commissioned and emptied of refrigerant. The label shall be dated and signed. Ensure that there are labels on the equipment stating the equipment contains flammable refrigerant. 5.4.10 Recovery When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good practice that all refrigerants are...
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Page 70: After-Sales Services
DC Inverter U-match Series Cassette Type Unit 5.5 After-Sales Services Any quality or other issues encountered in the purchased air conditioner, please contact the local YAMATO after-sales service department.