Yamato YC12G4/I Owner'S Manual Download

Page: 59 / 72

DC Inverter U-match Series Cassette Type Unit

Error

code

Error

code

Error

Outdoor ambient temperature

sensor error

DC indoor fan driver module high

temperature protection

Recycling refrigerant mode

DC indoor fan driver module

temperature sensor error

Ordinary defrosting state

DC indoor fan driver memory chip

error

Overload protection

DC indoor fan driver charge loop

error

IPM module current protection

DC indoor fan driver input AC

voltage error protection

Compressor out-of-step

protection

DC indoor fan driver electrical

box temperature sensor error

PFC overcurrent protection

DC indoor fan driver AC input

zero-crossing protection

Compressor demagnetize

protection

Compressor phase current circuit

detection error

Outdoor fan 1 error

Compressor phase-loss and

anti-phase protection

Wired controller power supply

circuit poor

DC bus voltage drop error

Wired controller power supply

overcurrent protection

Overall current detection failure

One control multi-machine

endor quantity is inconsistent

4–way valve switch-over error

One control multi-machine

endor series is inconsistent

Zero-crossing protection

Outdoor fan 2 error

Outdoor fan overcurrent

protection

Compressor startup failure

Outdoor ambient temperature

abnormal(Temperature high

opening heat mode or

temperature over low open

refrigeration mode)

NOTE:

When the unit is connected with the wired controller, the error code

will be simultaneously shown on it.

Summary of Contents for YC12G4/I

Page 1: ...ctions 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...

Page 2: ...for maintaining normal communication of system and preheating refrigerant and lubricant If the product is not to be used for long cut off the power supply please energize and preheat the unit in advan...

Page 3: ...turer 3 After verification the defect of product is directly caused by corrosive gas 4 After verification defects are due to improper operation during transportation of product 5 Operate repair mainta...

Page 4: ...by Faults of the AC 51 5 2 Error Code 53 5 3 Unit Maintenance 56 5 4 Notice on Maintenance 59 5 5 After Sales Services 66 This marking indicates that this product should not be disposed with other ho...

Page 5: ...severe damage or death to people WARNING If not abide them strictly it may cause severe damage to the unit or the people NOTE If not abide them strictly it may cause slight or medium damage to the uni...

Page 6: ...NG 1 Please install according to this instruction manual Installation must be performed in accordance with the requirement of NEC and CEC by authorized personnel only 2 Any person who is involved with...

Page 7: ...tion or electric shock will occur 15 Do not dry the filter with naked flame or an air blower otherwise the filter will be out of shape 16 If the unit is to be installed in a small space please adopt p...

Page 8: ...may deteriorate and fall off or even cause water leakage 2 Places with corrosive gas copper pipe or the welding parts may be corroded and cause refrigerant leakage 7 Adopt proper measures to protect t...

Page 9: ...ndoor unit confirm the model of indoor unit and check the corresponding table B For outdoor unit that is installed or placed indoors select the corresponding table according to the height of the room...

Page 10: ...269 5 8 21 5 5 8 32 1 5 8 289 6 0 23 0 6 0 34 3 6 0 309 6 2 24 5 6 2 36 6 6 2 330 6 4 26 1 6 4 39 1 6 4 351 6 6 27 8 6 6 41 5 6 6 374 6 8 29 5 6 8 44 1 6 8 397 7 0 31 3 7 0 46 7 7 0 420 7 2 33 1 7 2 4...

Page 11: ...it at a place with direct sunlight 4 Do not install the unit at a place with leakage of inflammable gas Selection of Installation Location for Indoor Unit Select a location pursuant to the following c...

Page 12: ...to withstand the weight and vibration of outdoor unit and allow the installation to be carried out safely 5 Avoid installing at a place with leakage of inflammable gas oil smoke or corrosive gas 6 Kee...

Page 13: ...DC Inverter U match Series Cassette Type Unit 9 1 Indoor Unit YC12G4 I YC18G4 I Unit mm Dimensions Model A B C D E F G H I YC12G4 I 620 580 570 505 550 260 140 530 530 YC18G4 I...

Page 14: ...840 680 780 200 135 YC24G4 I YC30G4 I 950 890 840 680 780 240 135 YC42G4 I YC48G4 I 950 890 840 680 780 290 135 YC60G4 I NOTES 1 Drilling of ceiling opening and installation of air conditioner must be...

Page 15: ...O YC60G4T O Unit mm Dimensions Model A B C D E F G YC12G4 O 732 330 553 455 310 675 285 YC18G4 O 802 350 555 512 331 745 300 YC24G4 O 958 402 660 570 371 889 340 YC30G4 O 958 402 660 570 371 889 340...

Page 16: ...e sure its installation space conforms to the following installation dimensions 1 When one outdoor unit is to be installed A E Hb Hd H mm a b c d e B 100 A B C 300 100 100 B E 100 1000 A B C E 300 150...

Page 17: ...ide Unit mm A E Hb Hd H mm a b c d e A B C 300 300 1000 A B C E 300 300 1000 1000 D 2000 D E 2000 1000 B D Hb Hd Hd H 300 2000 Hb Hd Hd 1 2H 250 2000 1 2H Hd H 300 2500 B D E Hb Hd Hb 1 2H 300 2000 10...

Page 18: ...DC Inverter U match Series Cassette Type Unit 14 3 When outdoor units are installed in rows Unit mm Hb H mm Hb 1 2H b 250 1 2H Hb H b 300 Hb H Prohibited...

Page 19: ...above another Unit mm 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 installatio...

Page 20: ...See the following diagram Unit mm 2 2 1 1 Hoisting the Main Body Unit NOTICE Please tightly screw up the nuts and bolts to prevent the air conditioner from falling 1 Installing the Suspension Bolts 1...

Page 21: ...t from breaking off a gasket anchor board can be helpful 2 Install the paper template on the unit and fix the drain pipe at the outlet vent 3 Adjust the unit to the best position 4 Check if the unit i...

Page 22: ...of the building 3 If it vibrates and causes noise please add rubber cushion between the outdoor unit and the installation base 4 When the outdoor unit is in heating or defrosting it needs to drain wat...

Page 23: ...d weld again NOTES 1 The air conditioner must be installed in a room that is larger than the minimum room area And it is not allowed to use in a room that has running fire 2 Before break the connectio...

Page 24: ...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...

Page 25: ...pipe as shown below Dimensions for the making of oil return bend are as follows A inch B mm C mm 3 8 20 150 1 2 26 150 5 8 33 150 2 2 3 2 Pipe Flaring 1 Cut the connection pipe with a pipe cutter 2 T...

Page 26: ...ul not to collapse them 2 Do not bend the pipes in an angle more than 90 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...

Page 27: ...rcles 3 Confirm the tightening torque by referring to the following table If the screw nut is over twisted it may be damaged and cause leakage 4 Check whether gas leakage occurs to the connection pipe...

Page 28: ...60 65 3 4 70 75 7 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 2 2 3 5 Thermal Ins...

Page 29: ...ssembly to the service port of the unit s gas valve and meanwhile the gas and liquid valves should be kept closed in case of refrigerant leak 3 Connect the hose used for evacuation to the vacuum pump...

Page 30: ...nside and outside of the connection pipe so that air will not come into the connection pipe when removing the hose Note that the gas and liquid valve can be opened fully only after the manifold valve...

Page 31: ...uished If a leakage of refrigerant is found which requires brazing all of the refrigerant shall be recovered from the system or isolated by means of shut off valves in a part of the system remote from...

Page 32: ...ain pipe to prevent rain water from pouring in and cause property loss or personal injury 3 Condensate drain pipe should be connected into special drain system for air conditioner 2 2 6 1 Indoor Side...

Page 33: ...Apply thermal insulation for the indoor drain hose Insulate the pipe clamp and the drain hose using heat insulation sponge Metal clamp Drain hose Grey tape During the installation distance from soft...

Page 34: ...hole pipeline should be supported and fixed onto the wall 2 Wind the insulating tape from bottom to top 3 The whole pipeline should be wound with insulating tape and fixed onto the wall with saddles 2...

Page 35: ...in Lift Pipe 1 The drain lift pipe should be 1100mm or less away from ground as shown below Unit mm 2 If multiple drain pipes are to be converged please install according to the following process Make...

Page 36: ...l It should be connected in the following way 1 Install 3 way connector of drainage pipe joint as shown in the left figure 2 Install drain elbow as shown in the middle figure 3 Install horizontal pipe...

Page 37: ...panel will direct right at the pipe mouth of the indoor unit 1 Temporarily hang the 4 fasteners on the corresponding hooks of the main body of the indoor unit Do not let the conducting wires get invo...

Page 38: ...nel 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...

Page 39: ...r 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...

Page 40: ...t be within the nominal range stated in the instruction manual Use a specialized power circuit for the air conditioner Do not draw power from another power circuit The air conditioner circuit should b...

Page 41: ...Loose connection is forbidden After the electrical installation is finished please use wire clamps to secure the power cord connection wire of indoor and outdoor units and the communication cords Make...

Page 42: ...ode designation 60245 IEC 57 Specifications of circuit breaker are based on a working condition where the working temperature is 40 C If working condition changes please adjust the specifications acco...

Page 43: ...to cut off the wire end and then peel away about 25mm of the insulation layer 2 Use a screwdriver to unscrew the terminal screw on the terminal board 3 Use nippers to bend the solid wire into a ring t...

Page 44: ...ckaging 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 ente...

Page 45: ...kle magnetic ring at the outlet of power line communication cord near the outdoor unit side with a cable tie refer to the mark 4 in the following picture to prevent the buckle magnetic ring from slidi...

Page 46: ...ctrical components 4 Connect the wires firmly to the wiring box Incomplete installation may lead to fire hazard 5 Please use wire clamps to secure the external covers of connecting wires Insulators mu...

Page 47: ...4 1 0mm Communication cords 2 0 75mm YC24G4 I YC24G4 O YC30G4 I YC30G4 O Power cords 3 2 5mm Power cords 4 1 0mm Communication cords 2 0 75mm Three phase unit YC42G4T O YC48G4T O YC60G4T O YC42G4 I Y...

Page 48: ...rminal board Wrong connection may lead to fire hazard 5 If the connection wires of indoor unit outdoor unit and power cords are not correctly connected the air conditioner may get damaged 6 Ground the...

Page 49: ...e Type Unit 45 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 Wire routing of outdoor unit Y...

Page 50: ...d on the nameplate The unit may fail or its components may get burned Are the wires and pipes installed correctly The unit may fail or its components may get burned Has the unit been safely grounded R...

Page 51: ...indoor and outdoor units can run normally 4 If there s sound of liquid shock when the compressor is running then stop the air conditioner immediately Wait until the electric heating belt is heated eno...

Page 52: ...DC Inverter U match Series Cassette Type Unit 48 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: ...unit 6 Insulation 1 To insulate the gas pipe 7 Insulation 1 To insulate the liquid pipe 8 Ordinary Nut Tamperproof box 1 To prevent the removal of the gas pipe connecting nut 9 Ordinary Nut Tamperpro...

Page 54: ...y YC42G4 I Outdoor Unit Accessories No Name Appearance Q ty Usage 1 Drain Plug or 0 or 3 or 4 or 5 To plug the unused drain hole 2 Drainage Connector or 1 To connect with the hard PVC drain pipe 3 Buc...

Page 55: ...lug is loose Re insert the power plug Remote controller has low battery Replace the batteries Bad cooling or heating effect Air inlet and outlet of indoor or outdoor units have been blocked Clear the...

Page 56: ...shing sound when defrosting under heating It s the sound of 4 way valve switching direction The sound will disappear after the valve changes its direction There is hissing sound when the unit is start...

Page 57: ...send for professional service staff to repair If the display panel or wired controller displays an error code please refer to the error code meaning stated in the following table Error code Error Erro...

Page 58: ...fan driver bus high voltage protection dJ AC sequence protection phase loss or anti phase protection q2 DC indoor fan AC current protection E0 Indoor fan error q3 DC indoor fan driver IPM module prot...

Page 59: ...ut zero crossing protection HE Compressor demagnetize protection U1 Compressor phase current circuit detection error L3 Outdoor fan 1 error U2 Compressor phase loss and anti phase protection L4 Wired...

Page 60: ...und please be extremely careful 4 Only professionals are allowed to carry on daily maintenance 5 3 1 Clean Air Filter If the air conditioner is used at a dusty place clean the air filter regularly Onc...

Page 61: ...be discolored or out of shape Do not dry it with fire otherwise the filter will catch fire or become out of shape 5 Fix the 3 cleaners on the filter and then re install the filter by fitting it into t...

Page 62: ...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 sou...

Page 63: ...ll be instructed to undertake the following when servicing an appliance that employs a flammable refrigerant 5 4 1 1 Checks to the Area Prior to beginning work on systems containing flammable refriger...

Page 64: ...All possible ignition sources including cigarette smoking should be kept sufficiently far away from the site of installation repairing removing and disposal during which flammable refrigerant can poss...

Page 65: ...itial safety checks and component inspection procedures If a fault exists that could compromise safety then no electrical supply shall be connected to the circuit until it is satisfactorily dealt with...

Page 66: ...s will not exceed the permissible voltage and current permitted for the equipment in use Intrinsically safe components are the only types that can be worked on while live in the presence of a flammabl...

Page 67: ...rk to take place This operation is absolutely vital if brazing operations on the pipework are to take place Ensure that the outlet for the vacuum pump is not close to any ignition sources and there is...

Page 68: ...ailable and being used correctly 3 The recovery process is supervised at all times by a competent person 4 Recovery equipment and cylinders conform to the appropriate standards 4 Pump down refrigerant...

Page 69: ...e 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 sc...

Page 70: ...verter U match Series Cassette Type Unit 66 5 5 After Sales Services Any quality or other issues encountered in the purchased air conditioner please contact the local YAMATO after sales service depart...

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