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Si71 - 812

Heat Reclaim Ventilation

- with DX coil -

[Applied Models]
VKM      50GAV1
VKM      80GAV1
VKM   100GAV1
VKM   50GAMV1
VKM   80GAMV1
VKM 100GAMV1

Содержание VKM50GAV1

Страница 1: ...Si71 812 Heat Reclaim Ventilation with DX coil Applied Models VKM 50GAV1 VKM 80GAV1 VKM 100GAV1 VKM 50GAMV1 VKM 80GAMV1 VKM100GAMV1...

Страница 2: ...ation 6 1 1 With DX coil Humidifier 6 1 2 With DX coil 8 1 3 Humidifier 10 Part 3 Operation 11 1 Operation 12 1 1 Explanation for Systems 12 1 2 Features of VKM GA M 15 1 3 Central Control System 17 1...

Страница 3: ...mistor R4T for Heat Exchanger 64 2 10 C5 Indoor Unit Malfunction of Thermistor R5T for Gas Pipes 65 2 11 C9 Indoor Unit Malfunction of Thermistor R3T for Suction Air 66 2 12 U3 Check Operation not Exe...

Страница 4: ...Si71 812 Table of Contents iii Part 8 Appendix 89 1 Appendix 90 1 1 Wiring Diagram 90 1 2 List of Electrical and Functional Parts 92 2 Piping Diagram 93 Index i Drawings Flow Charts iii...

Страница 5: ...disassembling the equipment for a repair Working on the equipment that is connected to a power supply can cause an electrical shook If it is necessary to supply power to the equipment to conduct the r...

Страница 6: ...applicable model and appropriate tools to conduct repair work Never attempt to modify the equipment The use of inappropriate parts or tools can cause an electrical shock excessive heat generation or...

Страница 7: ...e valve to prevent the refrigerant gas from leaking into the room The refrigerant gas itself is harmless but it can generate toxic gases when it contacts flames such as fan and other heaters stoves an...

Страница 8: ...shock Be sure to measure the insulation resistance after the repair and make sure that the resistance is 1 Mohm or higher Faulty insulation can cause an electrical shock Be sure to check the drainage...

Страница 9: ...Introduction Si71 812 viii...

Страница 10: ...Si71 812 General Constructions 1 Part 1 General Constructions 1 General Information 2 1 1 Features 2...

Страница 11: ...Features 1 1 1 External Appearance VKM50GAMV1 VKM50GAV1 VKM80GAMV1 VKM100GAMV1 VKM80GAV1 VKM100GAV1 1 1 2 Model Series These units are applied only for CE regulation Type 500 800 1000 DX Coil and Humi...

Страница 12: ...1 4 Structures V K M 50 GA M V1 Ventilation Outdoor Air Treatment Type Mounted Type Major Design Category Moisture M With Humidifier Elements nothing without Humidifier Elements Power Supply V1 1 Pha...

Страница 13: ...ppendices Type indoor unit of VRV Installation box for adaptor PCB Unified ON OFF controller Schedule timer For ON signal output For heater control kit BRC1A62 1 BRC1D527 EU only Note 8 DCS302CA61 DCS...

Страница 14: ...Si71 812 Product Specification 5 Part 2 Product Specification 1 Product Specification 6 1 1 With DX coil Humidifier 6 1 2 With DX coil 8 1 3 Humidifier 10...

Страница 15: ...late Insulating Material Self Extinguishable Urethane Foam Heat Exchanging System Air to Air Cross Flow Total Heat Sensible Latent Heat Exchange Heat Exchanger Element Specially Processed Nonflammable...

Страница 16: ...oor RA return air from room 11 The specifications designs and information here are subject to change without notice 12 Temperature Exchange Efficiency is a mean value in cooling and heating 13 Efficie...

Страница 17: ...nized Steel Plate Insulating Material Self Extinguishable Urethane Foam Heat Exchanging System Air to Air Cross Flow Total Heat Sensible Latent Heat Exchange Heat Exchanger Element Specially Processed...

Страница 18: ...High mode 7 Normal Amp input efficiency depend on the above air flow rate value 8 OA fresh air from outdoor RA return air from room 9 The specifications designs and information here are subject to ch...

Страница 19: ...5 50 C and its pressure at 20 490 kPa 0 2 5 0 kg cm2 If the water pressure is above 490 kPa 5 0 kg cm2 add pressure reducing valve in between the kit and the supply water shut off valve 3 The supply w...

Страница 20: ...Si71 812 Operation 11 Part 3 Operation 1 Operation 12 1 1 Explanation for Systems 12 1 2 Features of VKM GA M 15 1 3 Central Control System 17 1 4 Restrictions to Control System 18 1 5 Operation 20...

Страница 21: ...n of HRV VKM s and air conditioners by using the air conditioner remote controller The HRV VKM unit can also be operated independently using the remote controller for the indoor unit even if the indoo...

Страница 22: ...ized transmission line in one system which enables control of up to 128 groups 16 groups x 8 128 groups Schedule Timer One schedule timer can control the weekly schedule of up to 128 units Unified ON...

Страница 23: ...er to interlock between the VKM and the indoor unit the group control of remote controllers should be provided Fig 1 When interlocking between the base indoor unit and the VKM Connect multiple indoor...

Страница 24: ...been built in in addition to a PC board for ventilation These two PC boards are connected via remote controller line P1 P2 to perform an interlocked control Its control system provides the same condi...

Страница 25: ...roup Because 2 pieces of controlling PC board have been built in a VKM GAM model count the remote controller group as 1 set 2 units The maximum number of units connectable to a remote controller group...

Страница 26: ...be kept as the factory setting 17 08 01 Structure without a remote controller cannot be accepted because the remote controller group is controlled within a VKM GA M model i Touch controller central r...

Страница 27: ...indoor temperature Poor heating or shortage of the amount of humidification may result If the indoor unit and this unit are installed with different BS system inevitably always take following remedie...

Страница 28: ...ngs from the remote controller Mode No 17 27 First code No 5 Second code No 6 Refer to 15 10 1 concerning setting method b Do not connect to the outlet side of the indoor unit Depending on the fan str...

Страница 29: ...ponds to your system type and mark If your installation has a customized control system ask your dealer for the operation that corresponds to your system Name of Parts Sometimes when first using the u...

Страница 30: ...s 1 On off button Press the button and the system will start Press the button again and the system will stop 2 Operation lamp red The lamp lights up during operation or blinks if a malfunction occurs...

Страница 31: ...mer Refer to page 31 15 Timer on off button Refer to the chapter Operation procedure Programming start and stop of the system with timer Refer to page 31 16 Inspection test operation button Pressed du...

Страница 32: ...hedule timer 38 ELEMENT CLEANING TIME ICON This icon indicates the element must be cleaned HRV only 39 PROGRAMMING BUTTON This button is a multi purpose button Depending on the previous manipulations...

Страница 33: ...an also select the ventilation amount and the ventilation mode During intermediate periods when only the HRV unit is used without the air conditioner select ventilation with the operation selection bu...

Страница 34: ...BRC1D527 and as equivalent Display changes as below Note Current Ventilation mode can be visible and selected on the remote controller Operation mode display Ventilation is displayed Operation mode s...

Страница 35: ...ory settings so request your dealer to turn it on if you intend to use it Operation image a Outside temperature b Indoor temperature c Set temperature d Operating state of Air conditioner e Operating...

Страница 36: ...e controllers on which it is displayed See page 29 if is displayed Press ventilation mode selector button if you wish to change the mode The display rotates through the following selections every time...

Страница 37: ...ng alone Total heat exchange mode Outdoor air passes through the heat exchange element and heat exchanged air is sent into the room Bypass mode In this mode outdoor air does not through the heat excha...

Страница 38: ...ther indoor units set the master remote controller on the other indoor units Press the operation mode selector button of the controller that you wish to designate as the master remote controller Then...

Страница 39: ...ling heating mode will make slave remote controllers with the display to follow to the mode of the master remote controller Selection of fan mode is possible however Setting the master remote controll...

Страница 40: ...es or goes backward by 1 hour The timer can be programmed for a maximum of 72 hours Each time when is pushed the time advances one hour Each time when is pushed the time goes back one hour Press the t...

Страница 41: ...The icon appears will blink and one of the icons one of the icons might be displayed but all other fields remain blank indicating that no actions are programmed for Monday Enter the program mode by h...

Страница 42: ...tion to form on the main unit or on discharge grill or around air supply opening Keep the indoor unit and the remote controller at least 1 m away from televisions radios stereos and other similar equi...

Страница 43: ...Operation Si71 812 34 Operation...

Страница 44: ...aintenance 1 Maintenance 36 1 1 Maintenance for the Air Filter 36 1 2 Maintenance for the Heat Exchange Element 38 2 Inspection and Maintenance of the Humidifier 39 2 1 For VKM GAMV1 Series 39 2 2 Rep...

Страница 45: ...FOR GENERAL OFFICE USE CLEAN THE ELEMENT MORE FREQUENTLY IF NECESSARY 1 Go into ceiling through the inspection hole remove the hanging metals of maintenance cover and take it off VKM50 100GA M 2 Detac...

Страница 46: ...de When dried completely install the air filter back in place Note Be sure to install the air filter after servicing Missing air filter causes clogged heat exchange element The air filter is an option...

Страница 47: ...the suction nozzle Lightly contact the brush on the surface of the heat exchanging element when cleaning Do not crush the heat exchange element while cleaning Caution Do not clean touching strongly w...

Страница 48: ...ose the water supply shut off valve and open the drain valve of the water supply piping Fig 1 Before all working please cure a piping part and below product Fig 1 2 1 1 Inspection of Strainer Check fo...

Страница 49: ...Humidifier elements Fig 4 10 Install the hold plate Fig 4 11 Install the cover of the feed water tank Fig 4 12 Confirm that the link of the supporting stay has been hooked securely on the rail and in...

Страница 50: ...Si71 812 Inspection and Maintenance of the Humidifier Maintenance 41 Fig 5 Fig 6 Fig 7 Fig 8 screw Hook surely the supporting stay on the rail rail supporting stay...

Страница 51: ...at switch operation 1 Check that the water supply piping is connected securely 2 Open the water supply shut off valve No water will be supplied at this time 3 Run the HRV unit in heating mode See the...

Страница 52: ...rating conditions 24 hour a day air conditioning etc may shorten its productive life Contact your dealer if you have any questions Life of humidifying element is about 3 years 4 000 hours under the su...

Страница 53: ...Inspection and Maintenance of the Humidifier Si71 812 44 Maintenance...

Страница 54: ...Si71 812 Control Functions 45 Part 5 Control Functions 1 Control Functions 46 1 1 Explanation of individual Functions 46 1 2 Layout of Switches on Printed Circuit Board 52...

Страница 55: ...ion Air conditioning operation carries out to April to October and air conditioning load is calculated only with sensible heat load Note Nighttime free cooling operation setting can be set using field...

Страница 56: ...me Setup time Indoor temp Preset temp 2 C Indoor temp Outdoor temp Yes Yes No No No No No Yes Yes Yes No No No Fan operation Temperature monitor 5Min Fan operation ON H or U H tap Lapsed time setup 2h...

Страница 57: ...ration the fans of the unit continues driving factory setting The purpose of this is to maintain the amount of ventilation and humidifying Though the fan can be stopped by the setting of the remote co...

Страница 58: ...ng changes should be made in the following way Mode No 18 group tie up or 28 Setting switch No 7 Setting position No 1 No 4 Refer to page 85 Exhaust fan Air supply fan DX coil cooling Damper Heat exch...

Страница 59: ...rol of 2 or more groups zone link Heat reclaim ventilation unit can be operated when one or more air conditioners are operating Allows independent operation of heat reclaim ventilation unit from VRV s...

Страница 60: ...he X15A on the print board and the other end to the harness leading to the damper via a connector such as a closed connector With regard to closed connector select one that suits wire diameter Note Lo...

Страница 61: ...Control Functions Si71 812 52 Control Functions 1 2 Layout of Switches on Printed Circuit Board 1 2 1 Printed Circuit Board VKM GAMV1 A1P A3P VKM GAV1 2P130159G 2P124140C...

Страница 62: ...C5 Indoor Unit Malfunction of Thermistor R5T for Gas Pipes 65 2 11 C9 Indoor Unit Malfunction of Thermistor R3T for Suction Air 66 2 12 U3 Check Operation not Executed 67 2 13 Dedicated LCD Remote Co...

Страница 63: ...on button for more than 4 seconds Press Inspection Test Operation button once Press Inspection Test Operation button once Or after 30 minutes After 10 seconds Press Inspection Test Operation button on...

Страница 64: ...malfunction the remote controller s operation LED blinks and malfunction code is displayed Even if stop operation is carried out malfunction contents are displayed when the inspection mode is entered...

Страница 65: ...er related malfunction thermistor malfunction 61 Blinking Blinking Blinking A1 Printed circuit board fault 62 On Off Blinking A1 Printed circuit board fault 62 Blinking Blinking Blinking A9 Electric e...

Страница 66: ...9 E Outdoor model code Model RSXYP RXYP RSEYP RSXYP L RXYQ M RXYQ MA RXYQ P RXQ P REYQ P Unit Malfunction code Inspection Normal display No display 0 L 0 Malfunction code blinks when a malfunction oc...

Страница 67: ...ture resistance conversion table If measured value deviates significantly from above values thermistor is faulty Use tester to check resistance Remove Indoor air thermistor R1T from X12A 3P on control...

Страница 68: ...ature resistance conversion table If measured value deviates significantly from above values thermistor is faulty Use tester to check resistance Remove outdoor air thermistor R2T from X13A 2P on contr...

Страница 69: ...oard A1P assembly Troubleshooting Note Note 1 Place tester probes on connectors of limit switch Move switch by hand and check continuity If tester indicates 0 when limit switch turns on and infinity w...

Страница 70: ...oor air thermistor Frosting Broken wire in cable Faulty contact in connector including relay connector Faulty control PC board A1P assembly Troubleshooting Check error record on malfunction history di...

Страница 71: ...om the E PROM E PROM Type of nonvolatile memory Maintains memory contents even when the power supply is turned off Supposed Causes Defect of indoor unit PC board A2P Troubleshooting Turn power supply...

Страница 72: ...Defect of indoor unit PC board A2P Defect of connecting cable Troubleshooting V2781 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Aft...

Страница 73: ...the unit is running Supposed Causes Defect of thermistor R4T for liquid pipe Defect of indoor unit PC board A2P Troubleshooting 2 Refer to thermistor resistance temperature characteristics table on P...

Страница 74: ...running Supposed Causes Defect of indoor unit thermistor R5T for gas pipe Defect of indoor unit PC board A2P Troubleshooting 2 Refer to thermistor resistance temperature characteristics table on P79 V...

Страница 75: ...ile the unit is running Supposed Causes Defect of indoor unit thermistor R3T for air inlet Defect of indoor unit PC board A2P Troubleshooting 2 Refer to thermistor resistance temperature characteristi...

Страница 76: ...when the unit starts operation without check operation Supposed Causes Check operation is not executed Troubleshooting V3052 Has the check operation performed on Outdoor unit PC board Press the BS4 on...

Страница 77: ...see if master slave remote controller is used Check microcomputer operation monitor on main unit PC board Is it flashing YES YES Change master slave selection switch to set proper master slave relatio...

Страница 78: ...te controller cable disconnected voltage between P1 and P2 on terminal board should be approx 16 VDC If measured value is not approx 16 VDC PC board assembly is faulty Connect remote controller cable...

Страница 79: ...f remote controller PC board Malfunction of transmission caused by noise Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred...

Страница 80: ...period Supposed Causes Malfunction of transmission between main and sub remote controller Connection between sub remote controllers Defect of remote controller PC board Troubleshooting Caution Be sure...

Страница 81: ...ype of outdoor unit Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred V2827 The total of indoor units displaying UA and indoor units conne...

Страница 82: ...ses Address duplication of centralized remote controller Defect of indoor unit PC board Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage...

Страница 83: ...icrocomputer checks if transmission between indoor unit and centralized remote controller is normal Malfunction Decision Conditions When transmission is not carried out normally for a certain amount o...

Страница 84: ...the master controller s connector for setting master controller disconnected Set the group No correctly Replace indoor unit PC board Fix the wiring correctly Fix the wiring correctly Connect the conne...

Страница 85: ...Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the power supply turned on for indoor units displaying malfunction Is transmission wiring di...

Страница 86: ...le causes replace PC board assembly Is monitor indicator Off YES YES Monitor indicator remains On With remote controller disconnected check microcomputer operation monitor Turn off power then restart...

Страница 87: ...Note Refer to the thermistor temperature resistance conversion table when measuring resistance NO YES Is resistance as shown below Thermistor is normal Remove thermistors from main unit PC board A1P X...

Страница 88: ...4 81 08 78 97 46 8 37 8 21 3 76 93 74 94 47 8 05 7 90 2 73 01 71 14 48 7 75 7 60 1 69 32 67 56 49 7 46 7 31 0 65 84 64 17 50 7 18 7 04 1 62 54 60 96 51 6 91 6 78 2 59 43 57 94 52 6 65 6 53 3 56 49 55...

Страница 89: ...100 M or higher Insulation resistance between primary side and secondary side of transformer 100 M or higher Check resistance of primary side of transformer Does measured resistance deviate significa...

Страница 90: ...red value 0 when limit switch turns on and infinity when it turns off Damper motor is normal Place tester probes at connectors of limit switch and check continuity while moving switch by hand Limit sw...

Страница 91: ...Troubleshooting Si71 812 82 Troubleshooting...

Страница 92: ...Si71 812 Field Setting 83 Part 7 Field Setting 1 Field Setting 84 1 1 Field Setting and Test Run 84...

Страница 93: ...lowing describes the operating procedure and settings 1 Press the INSPECTION TRIAL button for more than four seconds with the unit in the normal mode to enter the local setting mode 2 Use the TEMPERAT...

Страница 94: ...8 hours later Fan speed initial setting 4 Normal Ultra high Direct duct connection with VRV setting 5 Notdirect duct Air flow setting Withdirect duct fan off Notdirect duct Air flow setting Withdirec...

Страница 95: ...rill s location should be examined when the cold draft from air discharge grill is feared z Though the fan can be stopped by the setting of remote controller Do not stop the fan in the place where no...

Страница 96: ...that the wiring was done incorrectly or that the power is not on so check again Remote control display Content is display z There is a short circuit at the FORCED OFF terminals T1 T2 is display z The...

Страница 97: ...operation 4 After starting heating humidifying the sound of the water supply solenoid valve will be heard every 3 or 4 minutes a clicking sound so listening for that clicking sound let the unit run f...

Страница 98: ...Si71 812 Appendix 89 Part 8 Appendix 1 Appendix 90 1 1 Wiring Diagram 90 1 2 List of Electrical and Functional Parts 92 2 Piping Diagram 93...

Страница 99: ...Appendix Si71 812 90 Appendix 1 Appendix 1 1 Wiring Diagram VKM50GAMV1 VKM80GAMV1 VKM100GAMV1...

Страница 100: ...Si71 812 Appendix Appendix 91 VKM50GAV1 VKM80GAV1 VKM100GAV1...

Страница 101: ...4P Damper Motor M1D MG8 3P145772 2 AC220 240V Thermistors Thermistor Indoor Air R1T ST8601 15C 4 L1000 20k 25 C Thermistor Outdoor Air R2T 3SH40049 3 4 L2500 20k 25 C Thermistor Inlet Air Into Coil R3...

Страница 102: ...il R4T Thermistor for liquid line temperature R5T Thermistor for gas line temperature M M DM Gas piping connection port Pipe guage 12 7 Liquid piping connection port Pipe guage 6 4 SA RA R3T R4T R1T R...

Страница 103: ...Piping Diagram Si71 812 94 Appendix...

Страница 104: ...ror Alarm 60 61 Data Transmission Error between LCD Remote Controller and Main Unit 69 Dedicated LCD Remote Controller 68 E Error Code Indication 56 Explanation for Systems 12 External Damper Operatio...

Страница 105: ...Si71 812 ii Index...

Страница 106: ...Units 12 Standard System 12 Zone Control System 13 F Field Setting 84 Float Switch 40 I Inspection of Strainer 39 M Main Unit PC board Assembly 77 Master Remote Controller 29 N Name of Parts 20 Nightt...

Страница 107: ...lt in water or refrigerant leakage electrical shock fire or explosion Use only those parts and accessories supplied or specified by Daikin Ask a qualified installer or contractor to install those part...

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