Daikin VAM 350GJVE Service Manual

Heat reclaim ventilation

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Operation manual (18 pages)

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Page 1 Si71 - 502 Heat Reclaim Ventilation [Applied Models] VAM 150GJVE VAM 250GJVE VAM 350GJVE VAM 500GJVE VAM 650GJVE VAM 800GJVE VAM1000GJVE VAM1500GJVE VAM2000GJVE...
Page 2 Si71-502 Heat Reclaim Ventilation Heat Reclaim Ventilation Heat Reclaim Ventilation Heat Reclaim Ventilation VAM 150GJVE VAM 250GJVE VAM 350GJVE VAM 500GJVE VAM 650GJVE VAM 800GJVE VAM1000GJVE VAM1500GJVE VAM2000GJVE Table of Contents...
Page 3: Table Of Contents
Si71-502 1. Introduction .....................v 1.1 Safety Cautions ..................v Part 1 General Constructions ............1 1. General Constructions ................2 1.1 Explanation....................2 Part 2 Product Specification ............5 1. Product Specification ................6 1.1 Specification .....................6 Part 3 Operation ................9 1. Operation ....................10 1.1 Explanation for Systems.................10 1.2 Operation HRV Units with the Remote Control exclusively for Air Conditioning Operation.
Page 4 5.1 The Following Situations are not Malfunctions........90 5.2 If One of the Following Malfunctions Occurs, Take the Measures Shown Below and Contact Your Daikin Dealer .....90 5.3 If the System does not Properly Operate Except for the above Mentioned Case, and None of the above Mentioned Malfunctions is Evident, Investigate the System According to the Following Procedures.
Page 5 Si71-502 Part 10 Appendix................95 1. Appendix ....................96 1.1 Wiring Diagram..................96 Index ..................... i Drawings & Flow Charts ............... iii Table of Contents...
Page 6: Introduction
Si71-502 Introduction 1. Introduction Safety Cautions Cautions and Be sure to read the following safety cautions before conducting repair work. Warnings The caution items are classified into “ Warning” and “ Caution”. The “ Warning” items are especially important since they can lead to death or serious injury if they are not followed closely. The “...
Page 7 Introduction Si71-502 1.1.1 Cautions in Operation and Maintenance...
Page 8 Si71-502 Introduction...
Page 9 Introduction Si71-502 1.1.2 Using Icons Icons are used to attract the attention of the reader to specific information. The meaning of each icon is described in the table below: 1.1.3 Using Icons List Icon Type of Description Information Note A “note” provides information that is not indispensable, but may nevertheless be valuable to the reader, such as tips and tricks.
Page 10: Part 1 General Constructions
Si71-502 Part 1 Part 1 Part 1 Part 1 General Constructions General Constructions General Constructions General Constructions General Constructions ................2 1.1 Explanation....................2 General Constructions...
Page 11: General Constructions
General Constructions Si71-502 General Constructions Explanation VAM150GJVE VAM250GJVE VAM350GJVE VAM500GJVE VAM650GJVE VAM800GJVE VAM1000GJVE (HL002) Hanger Bracket Duct Connection Flange Exhaust Fan Air Filter (Long Life Filter) Damper Control Box Maintenance Cover Heat Exchange Elements Name Plate Air Supply Fan Remote Controller (Option Accessory) Damper Plate (Exhaust...
Page 12 Si71-502 General Constructions VAM1500GJVE VAM2000GJVE (HL016) (HL017) H Hock Duct Connection Flange Exhaust Fan Air Filter (Long Life Filter) Damper Control Box Maintenance Cover Heat Exchange Elements Name Plate Air Supply Fan Remote Controller (Option Accessory) Damper Plate (Exhaust Air) [Exhaust Air to Outdoor] (Outdoor Air) [Fresh Air from Outdoor] Maintenance Space for The Air Filters, Heat...
Page 13 General Constructions Si71-502 General Constructions...
Page 14: Part 2 Product Specification
Si71-502 Part 2 Part 2 Part 2 Part 2 Product Specification Product Specification Product Specification Product Specification Product Specification ................6 1.1 Specification .....................6 Product Specification...
Page 15: Product Specification
Product Specification Si71-502 Product Specification Specification (50 / 60Hz) Model name VAM150GJVE VAM250GJVE VAM350GJVE Power supply Single phase 220 – 240 V / 220 V, 50 / 60 Hz Temperature exchange efficiency Ultra-High 79 / 79 75 / 75 79 / 79 High 79 / 79 75 / 75...
Page 16 Si71-502 Product Specification (50 / 60Hz) Model name VAM500GJVE VAM650GJVE VAM800GJVE Power supply Single phase 220 – 240 V / 220 V, 50 / 60 Hz Temperature exchange efficiency Ultra-High 74 / 74 75 / 75 72 / 72 High 74 / 74 75 / 75 72 / 72...
Page 17 Product Specification Si71-502 (50 / 60Hz) Model name VAM1000GJVE VAM1500GJVE VAM2000GJVE Power supply Single phase 220 – 240 V / 220 V, 50 / 60 Hz Temperature exchange efficiency Ultra-High 78 / 78 72 / 72 77 / 77 High 78 / 78 72 / 72 77 / 77...
Page 18: Part 3 Operation
Si71-502 Part 3 Part 3 Part 3 Part 3 Operation Operation Operation Operation 1. Operation ....................10 Explanation for Systems.................10 Operation HRV Units with the Remote Control exclusively for Air Conditioning Operation. (BRC301B61)..........11 Operating the HRV Unit Using the Remote Controller of the VRV-System Air Conditioner ..............13 Independent operation of the HRV unit using the Centralized controller (DCS302C(A)61) ..........14...
Page 19: Operation
Operation Si71-502 1. Operation Explanation for Systems This product is operated differently depending on the system configuration. For the operation of the remote controller for indoor unit and centralized controller, refer to the instruction manual provided with each unit. Operation for Each System System Example Operation Method Independent...
Page 20: Operation Hrv Units With The Remote Control Exclusively For Air Conditioning Operation. (Brc301B61)
Si71-502 Operation Operation HRV Units with the Remote Control exclusively for Air Conditioning Operation. (BRC301B61) For non-independent systems, starting/stopping operation and timer operation may not be possible. Use the air conditioner remote control or the Centralized controller in such cases. Remote Controller for HRV BRC301B61...
Page 21 Operation Si71-502 4. Ventilation mode changeover: button “ ” (Automatic) mode ..The temperature sensor of the unit automatically changes the ventilation of the unit in [Bypass] mode and [Heat Exchange] mode. “ ” (Heat Exchange) mode ..In this mode, the air passes through the heat exchange element to effect [Total Heat Exchanging] ventilation.
Page 22: Operating The Hrv Unit Using The Remote Controller Of The Vrv-System Air Conditioner
Si71-502 Operation Operating the HRV Unit Using the Remote Controller of the VRV-System Air Conditioner Remote Controller for VRV BRC1C51·61 1. Operation lamp 2. Operation/stop button 3. Air flow rate changeover button 4. Ventilation mode changeover button 5. Indication of air flow rate 6.
Page 23: Independent Operation Of The Hrv Unit Using The Centralized Controller (Dcs302C(A)61)
Operation Si71-502 Operating the HRV unit using the remote controller of the VRV- system air conditioner The HRV unit cannot be operated independently Operation mode display when the air conditioner is connected to the HRV “Ventilation” is displayed. unit via a duct. When using the HRV unit, set the air conditioner to “fan”...
Page 24: Part 4 Maintenance
Si71-502 Part 4 Part 4 Part 4 Part 4 Maintenance Maintenance Maintenance Maintenance 1. Maintenance..................16 Maintenance for the Air Filter ..............16 Maintenance for the Heat Exchange Element........19 Maintenance...
Page 25: Maintenance
Maintenance Si71-502 1. Maintenance Maintenance for the Air Filter Caution During operation, never check or clean the HRV. It may cause electrical shock and it is very dangerous to touch the rotating part. Be sure to turn off the OPERATION switch and disconnect the power. CLEANING FREQUENCY AT LEAST ONCE EVERY TWO YEARS (FOR GENERAL OFFICE USE) (CLEAN THE ELEMENT MORE FREQUENTLY IF NECESSARY.)
Page 26 Si71-502 Maintenance 2. Take out the heat exchange elements from the unit body. VAM150 1000GJVE Heat Exchange Element (X2) Handle Rail Air Filter × 2 VAM1500 2000GJVE Heat Exchange Element (X4) Handle Rail Air Filter × 4 To clean the air filter, lightly pat it with hand or remove dust with a vacuum cleaner.
Page 27 Maintenance Si71-502 5. Install the maintenance cover securely in place. Caution 1. Do not wash the air filter in hot water. 2. Do not dry the air filter over a fire. 3. Do not expose the air filter to direct sunlight. 4.
Page 28: Maintenance For The Heat Exchange Element
Si71-502 Maintenance Maintenance for the Heat Exchange Element CLEANING FREQUENCY AT LEAST ONCE EVERY TWO YEARS (FOR GENERAL OFFICE USE) (CLEAN THE ELEMENT MORE FREQUENTLY IF NECESSARY.) 1. Use a vacuum cleaner to remove dust and foreign objects on the surface of the heat exchange element. Use the vacuum cleaner equipped with a brush on the tip of the suction nozzle.
Page 29 Maintenance Si71-502 Maintenance...
Page 30: Part 5 Control Functions
Si71-502 Part 5 Part 5 Part 5 Part 5 Control Functions Control Functions Control Functions Control Functions 1. Control Functions ..................22 List of Control Functions.................22 1.2 Explanation of Individual Functions............23 Layout of switches on Printed Circuit Board...........29 Control Functions...
Page 31: Control Functions
Control Functions Si71-502 1. Control Functions List of Control Functions Classification Function name Outline of function 1. Basic functions Ventilation Controls supply air fan motor, exhaust air fan motor and damper (functions related to operation control motor. basic performance) function Abnormality Detects abnormalities in thermistor, damper motor and data control function...
Page 32: Explanation Of Individual Functions
Si71-502 Control Functions Explanation of Individual Functions 1.2.1 Ventilation Operation Control Controls ventilation fan motors (supply and exhaust air fans) and damper motor. Normal operation Operation chart Cleaning Filter sign Normal ventilation Operation time reset mode selection Stop Ventilation fan motor Damper motor Total heat (ventilation mode)
Page 33 Control Functions Si71-502 1.2.2 Pre-cool/Pre-heat Pre-cool/pre-heat operations require the following conditions. 1. System Pre-heat operation is possible only in air conditioner linked system (1 group, 2-group link). Check the system first. 2. Heat reclaim ventilation setting Set Pre-heat ON/OFF to ON. Pre-cool/pre-heat On/OFF setting can be made in air conditioner or using field setting mode of LCD remote controller of heat reclaim ventilation unit.
Page 34 Si71-502 Control Functions 1.2.3 Cold Area Mode Stops or lowers ventilation airflow during defrosting operation and compressor non-operating condition when equipment in heating mode, thus reducing heating load and cold air draft. Operation chart (in heating operation only) Normal ventilation Operation Defrosting operation mode selection...
Page 35 Control Functions Si71-502 2) Link control 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-system remote controller during interim periods (direct duct connection is not allowed in this system).
Page 36 Si71-502 Control Functions Mode No. Setting Setting position No. (NOTE 1) switch Description of Setting Group Individual settings settings Ventilation air flow setting High High Ventilation mode setting Automatic Exchange By pass – – – “Fresh Up” on/off setting – –...
Page 37 Control Functions Si71-502 1.2.6 External Damper Operation (FIELD SUPPLY) Explanation of Intake of outdoor air can be prevented when HRV is switched OFF if this damper is incorporated in the Functions system. 1. The total heat exchanger’s main unit print board supplies power for external damper. Essential Wiring 1.
Page 38: Layout Of Switches On Printed Circuit Board
Si71-502 Control Functions Layout of switches on Printed Circuit Board 1.3.1 Printed Circuit Board Layout of switches on printed circuit board <In case of VAM 150 ~ 1000GJVE> <In case of VAM 1500 · 2000GJVE> 1. Transformer 6. Connector for damper 11.Connector for indoor air 15.Terminal port for centralized 2.
Page 39 Control Functions Si71-502 1.3.2 Function of main connection terminal Terminal No. Contents of function Single phase 220 – 240 V 50Hz Single phase 220 – 220 V 60Hz Power supply and earth terminal TeS1 Connection terminal for remote controller for HRV unit.
Page 40: Part 6 Circuit Operations
Si71-502 Part 6 Part 6 Part 6 Part 6 Circuit Operations Circuit Operations Circuit Operations Circuit Operations Circuit Operations .................32 1.1 Circuit Configuration................32 Circuit Functions..................33 Circuit Operations...
Page 41: Circuit Operations
Circuit Operations Si71-502 Circuit Operations Circuit Configuration Fan motor Damper motor PCB assembly Fan motor, Transformer damper motor relay Detection and cut-off of+16V current +16V Power supply Thermistor + 5V circuit Thermistor interface circuit To circuits and Relay drive microcomputer circuit Centralized control Airflow rate...
Page 42: Circuit Functions
Si71-502 Circuit Operations Circuit Functions Classification Circuit Function Input/output Central data transmission interface Used by centralized control equipment for operation control. Allows control of up to 64 groups of air conditioners and heat reclaim ventilation units. Use of KRP2A61 allows zone link operation.
Page 43 Circuit Operations Si71-502 Circuit Operations...
Page 44: Part 7 Troubleshooting
Si71-502 Part 7 Part 7 Part 7 Part 7 Troubleshooting Troubleshooting Troubleshooting Troubleshooting 1. Troubleshooting ..................36 Error Code Indication ................36 Overall Alarm..................37 Overall Malfunction.................38 Indoor Air Thermistor Error..............39 Outdoor Air Thermistor Error..............40 Damper System Error (Alarm)..............41 Damper System Error (Alarm)..............42 Dedicated LCD Remote Controller............43 Data Transmission Error (Between LCD Remote Controller and Main Unit) .........44...
Page 45: Troubleshooting
Troubleshooting Si71-502 1. Troubleshooting Error Code Indication When an abnormality is generated, take necessary measures by referring to displayed error code. After the cause of abnormality is removed, operate equipment and check proper functioning. Operation lamp (LED) Indication of unit No. of abnormal Inspection indication Error code heat reclaim ventilation unit...
Page 46: Overall Alarm
Si71-502 Troubleshooting Overall Alarm Remote Controller Error Code Inspection OFF Unit No. Blinking LCD Display LED Indication Remote Controller Main Unit Error Detection Abnormalities are detected based on external input terminals (J1-JC). Method Error Generating When external input terminal (J1-JC) short-circuit during operation Conditions (“Overall Alarm”...
Page 47: Overall Malfunction
Troubleshooting Si71-502 Overall Malfunction Remote Controller Error Code Inspection Blinking Unit No. Blinking LCD Display LED Indication Remote Controller Main Unit Error Detection Abnormalities are detected based on external input terminals (J1-JC). Method Error Generating When external input terminal (J1-JC) short-circuit during operation (“Overall Malfunction” must be set in Conditions field setting mode Note 2.).
Page 48: Indoor Air Thermistor Error
Si71-502 Troubleshooting Indoor Air Thermistor Error Remote Controller Error Code Inspection Unit No. Blinking LCD Display LED Indication Remote Controller Main Unit Error Detection Temperature detected by inside air temperature sensor is used to detect errors. Method Error Generating When value detected by inside air temperature sensor is -40ºC or below (open circuit) or 70ºC or higher Conditions (short-circuit).
Page 49: Outdoor Air Thermistor Error
Troubleshooting Si71-502 Outdoor Air Thermistor Error Remote Controller Error Code Inspection OFF Unit No. Blinking LCD Display LED Indication Remote Controller Main Unit Error Detection Temperature detected by outside air temperature sensor is used to detect errors. Method Error Generating When value detected by outside air temperature sensor is -40ºC or below (open circuit) or 70ºC or higher Conditions (short-circuit).
Page 50: Damper System Error (Alarm)
Si71-502 Troubleshooting Damper System Error (Alarm) Remote Controller Error Code Inspection Unit No. Blinking LCD Display LED Indication Remote Controller Main Unit Error Detection Measurement of damper motor limit ON/OFF time. Method Error Generating When damper motor limit switch 1 (or 2) remains ON (or OFF) for more than a certain time duration Conditions after ventilation mode is changed.
Page 51: Damper System Error (Alarm)
Troubleshooting Si71-502 Damper System Error (Alarm) Remote Controller Error Code Inspection Blinking Unit No. Blinking LCD Display LED Indication Remote Controller Main Unit Error Detection Measurement of damper motor limit switch ON/OFF time and temperatures detected by outdoor and indoor Method air thermistor.
Page 52: Dedicated Lcd Remote Controller
Si71-502 Troubleshooting Dedicated LCD Remote Controller When “ ” remains on remote controller display. Error Detection When “ ” remains on remote controller display. Method Error Generating Conditions Possible Causes Master-slave setting of remote controller Remote controller PCB assembly error Main unit PCB assembly error Troubleshooting Check to see if master-...
Page 53: Data Transmission Error (Between Lcd Remote Controller And Main Unit)
Troubleshooting Si71-502 Data Transmission Error (Between LCD Remote Controller and Main Unit) Remote Controller Error Code Inspection Blinking Unit No. Blinking LCD Display LED Indication Remote Controller Main Unit Error Detection Microcomputer checks if data is transmitted properly between main unit and remote controller. Method Error Generating When data transmission is not performed correctly for a certain time period.
Page 54: Data Transmission Error (Lcd Remote Controller)
Si71-502 Troubleshooting 1.10 Data Transmission Error (LCD Remote Controller) Remote Controller Error Code Inspection Blinking Unit No. OFF LCD Display LED Indication Remote Controller Main Unit Error Detection Microcomputer checks if data is transmitted properly between main unit and remote controller. Method Error Generating When data transmission is not performed correctly for a certain time period.
Page 55: Data Transmission Error (Between Lcd Master Remote Controller And Slave Remote Controller)
Troubleshooting Si71-502 1.11 Data Transmission Error (Between LCD Master Remote Controller and Slave Remote Controller) Remote Controller Error Code Inspection Blinking Unit No. OFF LCD Display LED Indication Remote Controller Main Unit Error Detection Microcomputer checks if data is transmitted properly between master-slave remote controller. Method Error Generating When data transmission is not performed correctly for a certain time period.
Page 56: Field Setting Error
Si71-502 Troubleshooting 1.12 Field Setting Error Remote Controller Error Code Inspection Blinking Unit No. OFF LCD Display LED Indication Remote Controller Main Unit Error Detection Method Error Generating Conditions Possible Causes Faulty combination of remote controller More than 16 units connected to remote controller cable. Faulty remote controller Troubleshooting combination...
Page 57: Overlapping Central Control Address
Troubleshooting Si71-502 1.13 Overlapping Central Control Address Remote Controller Error Code Inspection ON Unit No. ON LCD Display LED Indication Remote Controller Main Unit Error Detection Remote controller microcomputer checks for double-setting of addresses. Method Error Generating When same address is set to two or more units. Conditions Possible Causes Overlapping of central control address...
Page 58: Main Unit Pcb Assembly
Si71-502 Troubleshooting 1.14 Main Unit PCB Assembly Error Detection Check microcomputer operation monitor. Method Error Generating When main unit PCB assembly does not operate. Conditions When communication circuit errors. Possible Causes Fuse (excess current) Power transformer Noise Main unit PCB Troubleshooting Turn off power, then restart.
Page 59: Dedicated Lcd Remote Controller
Troubleshooting Si71-502 1.15 Dedicated LCD Remote Controller When no indication is displayed on remote controller Error Detection Check to see if remote controller displays indication. Method Error Generating Conditions Possible Causes Troubleshooting Disconnect remote controller cable from both main unit terminal board and remote controller terminal board.
Page 60: How To Check
Si71-502 Troubleshooting 1.16 How to Check Check 1 Dedicated LCD remote controller (Option) Main unit PCB (HL034) Check 2 Dedicated LCD remote controller (Option) Main unit PCB (HL035) Check 3 Dedicated LCD remote controller (Option) LCD remote controller Remote controller for heat reclaim ventilation Main unit PCB (HL036)
Page 61: Thermistor
Troubleshooting Si71-502 1.17 Thermistor Error Detection Remove thermistor and check resistance with tester. Method Error Generating Conditions Possible Causes Faulty thermistor Broken wire Faulty control PCB Faulty contact in connector Troubleshooting Remove thermistor from main unit PCB (X12A, X13A), and check resistance using tester.
Page 62: Power Transformer
Si71-502 Troubleshooting 1.18 Power Transformer Error Detection Check resistance and voltage with tester, and insulation resistance with megger. Method Error Generating Conditions Possible Causes Troubleshooting Check resistance of primary side of transformer. Does measured resistance deviate significantly Transformer is faulty. from values shown below?
Page 63: Damper Motor
Troubleshooting Si71-502 1.19 Damper Motor Error Detection Check damper motor and limit switch when damper motor does not operate. Method Error Generating Conditions Possible Causes Troubleshooting Place tester probes at connectors of limit switch, and check continuity while moving switch by hand.
Page 64: Part 8 Supplementary Explanation
Si71-502 Part 8 Part 8 Part 8 Part 8 Supplementary Supplementary Supplementary Supplementary Explanation Explanation Explanation Explanation 1. Supplementary Explanation ..............56 Field Setting, Service Mode Operation...........56 Supplementary Explanation...
Page 65: Supplementary Explanation
Supplementary Explanation Si71-502 1. Supplementary Explanation Field Setting, Service Mode Operation 1.1.1 Field Setting Initial setting (mode Nos. 17, 27, 18, 28) Field setting mode Unit No. Setting position No. Setting switch No. Mode No. 1, 7 (HL039) Step 1 With equipment in normal mode, press the button for more than 4 seconds to enter field setting mode.
Page 66 Si71-502 Supplementary Explanation Centralized control group No. setting Field setting mode (Mode No. 00) Setting of Individual No. (Mode No. 30) Group No. Mode No. 1, 5 (HL040) Step 1 With equipment in normal mode, press the button for more than 4 seconds to enter field setting mode.
Page 67 Supplementary Explanation Si71-502 1.1.2 Service Mode Operation Turn on the forced fan (Mode No.43) Mode No. Unit No. 1, 4 (HL041) Step 1 With equipment in field setting mode, press the button for more than 4 seconds to enter service mode. ↔...
Page 68 Si71-502 Supplementary Explanation Unit No. reallocation (Mode Field setting mode No.45) Unit No. before reallocation Unit No. after reallocation Mode No. 1, 6 (HL042) Step 1 With equipment in field setting mode, press the button for more than 4 seconds to enter service mode.
Page 69 Supplementary Explanation Si71-502 1.1.3 Field Setting The following shows the procedure for field setting using remote controller of new heat reclaim ventilation unit. BRC301B61 (HL044) List of field setting mode Nos. Centralized control group No. setting General setting 10-29 Centralized control group No. setting (group) Error record display Sensor data Forced fan ON...
Page 70 Si71-502 Supplementary Explanation 1.1.4 LCD and Operation Panel (Reference Information) The following shows the operation panel and LCD of remote controller of new heat reclaim ventilation unit. BRC301B61 (HL045) LCD is equipped with a new function that graphically displays currently selected ventilation mode, as shown below.
Page 71 Supplementary Explanation Si71-502 1.1.5 Ventilation Volume (Fresh-up) Ventilation volume (Fresh-up) setting (With Freshup) (Without Freshup) changes as follows. High High Freshup Function modes change in sequence every time button is pressed. High Freshup (HL051) Inspection Inspection operation is shown below. Unit Cyclic (Normal screen)
Page 72 Si71-502 Supplementary Explanation 1.1.6 Field Setting (Example of setting operation) Centralized control 1. Press for more than 4 seconds. group No. setting 2. Set mode No. to “00” using (mode No.: 00) 3. Set centralized control group No. using ] or 4.
Page 73 Supplementary Explanation Si71-502 Individual Settings Heat Reclaim Ventilation Unit Ventilation Volume Ventilation Mode As indicated by LCD As indicated by LCD Supplementary Explanation...
Page 74: Part 9 Operation Manual
Si71-502 Part 9 Part 9 Part 9 Part 9 Operation Manual Operation Manual Operation Manual Operation Manual 1. Safety Cautions..................68 2. What to do Before Operation ..............71 3. Operation Procedure................78 4. Maintenance (for a Qualified Service Person Only) ......85 5. Troubleshooting ..................90 6.
Page 75 Si71-502 OPERATION MANUAL Total Heat Exchanger HRV (Heat Reclaim Ventilation) MODELS (Ceiling mounted duct type) VAM 150GJVE VAM 250GJVE VAM 350GJVE VAM 500GJVE VAM 650GJVE VAM 800GJVE VAM 1000GJVE VAM 1500GJVE VAM 2000GJVE EM03A029 3P034927-5J (0511) Operation Manual...
Page 76 Si71-502 HRV; Heat Reclaim Ventilation Before using the DAIKIN HRV, be sure to read this operation manual thoroughly. If you have any problems or there is a malfunction, please refer to this operation manual. Please keep this manual for your future reference whenever you do not understand how to use it when something is wrong with the unit during the operation.
Page 77: Safety Cautions
Safety Cautions Si71-502 1. Safety Cautions Read the following cautions carefully and use your equipment properly. This unit comes under the term “appliances not accessible to the genetic public.” There are two kinds of safety cautions and tips listed here as follows: Warning..Improper handling can lead to such serious consequences as death or severe injury.
Page 78 Si71-502 Safety Cautions • Young children should be supervised to ensure that they do not play with the appliance. • Consult with installation contractor for cleaning the inside of the air conditioner. Wrong cleaning may make the plastics parts broken or cause failure of water leakage or electric shock. •...
Page 79 Safety Cautions Si71-502 • Make sure the temperature and the humidity of the installation location is within the usage range, not exceed the limit. Do not install in cold storage or other locations with low temperatures or near heated pools. This may cause fires or short circuits.
Page 80: What To Do Before Operation
This operation manual is for the following systems with standard control. Before initiating operation, contact your Daikin dealer for the operation that corresponds 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.
Page 81 What to do Before Operation Si71-502 MODELS VAM1500GJVE VAM2000GJVE (3) Exhaust fan (1) Hanger bracket (7) Maintenance cover (2)Duct connecting flange (6) Control box (10) Air supply fan (5) Damper (4) Air filter (Long life filter) (8) Heat exchange elements It exchanges the heat (temperature and humidity) from indoors with the air taken in from outdoors, changes the outside air to the same condition as...
Page 82: Remote Controller And Changeover Switch: Name And Function Of Each Switch And Display
Si71-502 What to do Before Operation Remote Controller and Changeover Switch: Name and Function of Each Switch and Display AVAILABLE AVAILABLE Remote controller for VRV BRC1A61, 62 Remote controller for VRV BRC1C61 Remote controller for HRV BRC301B61 fig 3 • Only the items marked with an asterisk (* mark) are explanation relating to the functions and display of the unit.
Page 83 What to do Before Operation Si71-502 7 Display “ ” “ ” “ ” “ ” “ ” (operation mode) This displays the operating status of the combined air conditioner. • There is no “heating” for the VRVII system (Cooling only type). •...
Page 84 Si71-502 What to do Before Operation ∗27 Display “NOT AVAILABLE” • “NOT AVAILABLE” may be displayed for a few seconds if the function for the button pressed is not available for the unit or the air conditioner. • “NOT AVAILABLE” is only displayed when none of the indoor units is equipped with the function in question when running several units simultaneously.
Page 85: Explanation For Systems
What to do Before Operation Si71-502 Explanation for Systems This unit can be made a part of two different systems: as part of the combined operation system used together with VRVII SYSTEM Air Conditioners or Sky-air series and as the independent system using only the HRV.
Page 86 Si71-502 What to do Before Operation Starting and stopping operations of the indoor unit and the HRV unit can be performed using the indoor remote controllers. (Refer to the section 3-2) Centralized system • Centralized system HRV unit Centralized controller Remote controller for HRV unit (BRC301B61) Remote controller...
Page 87: Operation Procedure
Operation Procedure Si71-502 3. Operation Procedure Independent, Combined Operation 1·4 Remote controller for HRV BRC301B61 1·4 Remote controller for VRV BRC1C61 1·4 Remote controller for VRV BRC1A61, 62 fig 4 For non-independent systems, starting/stopping operation and timer operation may not be possible.
Page 88 The unit automatically switches between “ ” and “ ” when it is combined with an air conditioner (Not producted by Daikin) and based on only the information from the HRV unit (indoor and outdoor temperatures) when the HRV unit is operating alone.
Page 89 Operation Procedure Si71-502 The HRV unit cannot be operated independently when the air conditioner is connected to the HRV unit via a duct. When using the HRV unit, set the air conditioner to “fan” mode on weak fan strength. Operation mode display “Ventilation”...
Page 90 Si71-502 Operation Procedure Example 2: In case of the remote controller “BRC1A61,62” Display changes as below. When air conditioner and HRV unit are not connected via duct <Operation mode> VRV: Cooling mode HRV: Heat exchange mode VRV: Fan mode HRV: Heat exchange mode VRV: Stopping...
Page 91: Programming Start And Stop Of The System With Timer
Operation Procedure Si71-502 Programming Start and Stop of the System with Timer Remote controller for HRV BRC301B61 Remote controller for VRV BRC1C61 Remote controller for VRV BRC1A61,62 fig 5 • The timer is operated in the following two ways. Programming the stop time “”.
Page 92 Si71-502 Operation Procedure Press the programming time button and set the time for stopping or starting the system. Each time this button is pressed, the time advances or goes backward by 1 hour. • The timer can be programmed for a maximum of 72 hours. •...
Page 93: Nighttime Free Cooling Operation
Operation Procedure Si71-502 Nighttime Free Cooling Operation 〈AUTOMATIC HEAT PORGE FUNCTION AT NIGHT〉 The nighttime free cooling is an energy-conserving function which works at night when the air conditioners is off, reducing the cooling load in the morning when the air conditioner is turned on by ventilating rooms which contain office equipment which raises the room temperature.
Page 94: Maintenance (For A Qualified Service Person Only)
Si71-502 Maintenance (for a Qualified Service Person Only) 4. Maintenance (for a Qualified Service Person Only) ONLY A QUALIFIED SERVICE PERSON IS ALLOWED TO PERFORM MAINTENANCE Warning • BEFORE OBTAINING ACCESS TO TERMINAL DEVICES, ALL POWER SUPPLY CIRCUITS MUST BE INTERRUPTED. •...
Page 95 Maintenance (for a Qualified Service Person Only) Si71-502 2. Detach the air filter. Take out from the heat exchange elements. MODELS VAM150GJVE-1000GJVE MODELS VAM1500GJVE VAM2000GJVE fig 7 3. Clean the air filter. Use vacuum cleaner A) or wash the air filter with water B). A) Using a vacuum cleaner B) Washing with water When the air filter is very dirty, use soft brush and neutral detergent.
Page 96: Optimum Operation
Si71-502 Maintenance (for a Qualified Service Person Only) 4. Fix the air filter. If the air filter is washed, remove water completely and allow to dry for 20 to 30 minutes in the shade. When dried completely, install the air filter back in place. Note •...
Page 97: How To Clean The Heat Exchange Element
Maintenance (for a Qualified Service Person Only) Si71-502 How to Clean the Heat Exchange Element CLEANING FREQUENCY AT LEAST ONCE EVERY TWO YEARS (FOR GENERAL OFFICE USE) (CLEAN THE ELEMENT MORE FREQUENTLY IF NECESSARY.) Warning • Please exchange the heat exchange element if you find that the knob of the heat exchange element is damaged or is deteriorated when cleaning it.
Page 98: Inspection Of The Fan Moter
Si71-502 Maintenance (for a Qualified Service Person Only) Caution • Do not clean touching strongly with a vacuum cleaner. This may crush the mesh of the heat exchange (During Opertaion) elements. • Never wash the heat exchange element with water. •...
Page 99: Troubleshooting
It is only displayed temporarily. If One of the Following Malfunctions Occurs, Take the Measures Shown Below and Contact Your Daikin Dealer The system must be repaired by a qualified service person. DO NOT CHECK AND REPAIR OPENING INSIDE THE UNIT BY YOURSELF.
Page 100: If The System Does Not Properly Operate Except For The Above Mentioned Case, And None Of The Above Mentioned Malfunctions Is Evident, Investigate The System According To The Following Procedures
INDOOR UNIT No. in which a malfunction occurs display MALFUNCTION CODE Measure: Notify and inform the model name and what the malfunction code indicates to your Daikin dealer. • There are other malfunctions. Measure: Stop the unit. List of malfunction codes of Remote controller of the HRV-system...
Page 101: The Following Malfunctions Must Be Cheched By A Qualified Service Person
Troubleshooting Si71-502 The Following Malfunctions must be Cheched by a Qualified Service Person 1. Do not operate • Are there any problems with the power or wiring? Inspect the power and wiring. • Are there any problems with the fan unit? Inspect the fan motor and fan.
Page 102: After-Sales Service
Si71-502 After-sales Service 6. After-sales Service After-sales service: Warning • Do not modify the unit. This may cause electric shock or fire. • Do not disassemble or repair the unit. This may cause electric shock or fire. Contact your dealer. •...
Page 103: Si71
After-sales Service Si71-502 Operation Manual...
Page 104: Part 10 Appendix
Si71-502 Part 10 Part 10 Part 10 Part 10 Appendix Appendix Appendix Appendix 1. Appendix ....................96 1.1 Wiring Diagram..................96 Appendix...
Page 105: Appendix
Appendix Si71-502 1. Appendix Wiring Diagram VAM150GJVE / VAM250GJVE / VAM350GJVE / VAM500GJVE / VAM650GJVE / VAM800GJVE / VAM1000GJVE Appendix...
Page 106 Si71-502 Appendix VAM1500GJVE / VAM2000GJVE Appendix...
Page 107 Appendix Si71-502 Appendix...
Page 108 Si71-502 Index Index Index Index Error Code 6A ..........41, 42 Error Code Indication ..........36 Abnormality control function ........22 Error Code U5 ..........44, 45 Air conditioner link function ........22 Error Code U8 ............46 Air Conditioner Link Operation .......25 Error Code UA ............
Page 109 Si71-502 Remote Controller for VRV BRC1C51·61 ..... 13 Remote controller function ........22 KRP50-2 ..............22 Remove thermistor and check resistance KRP50-2 interface ..........33 with tester ............52 Return Air ............2, 3 Layout of switches on Printed Circuit Board ..29 LCD and Operation Panel ........61 Sensor data ............
Page 110 Si71-502 Drawings & Flow Charts Drawings & Flow Charts Drawings & Flow Charts Drawings & Flow Charts VAM250GJVE ........... 2 VAM350GJVE ........... 2 Air Conditioner Link Operation VAM500GJVE ........... 2 1 group link control ..........25 VAM650GJVE ........... 2 Link control of 2 or more groups ......26 VAM800GJVE ...........
Page 111 Si71-502 Ventilation mode Total heat exchange ........61 Ventilation mode changeover ........12 Ventilation volume (Fresh-up) setting changes ..62 When “88” remains on remote controller display ...43 When no indication is displayed on remote controller ..........50 Wiring Diagram VAM1500GJVE / VAM2000GJVE ....97 VAM150GJVE / VAM250GJVE / VAM350GJVE / VAM500GJVE / VAM650GJVE / VAM800GJVE /...
Page 112 Improper installation can result 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 parts and accessories. Use of unauthorized parts and accessories or improper installation of parts and accessories can result in water or refrigerant leakage, electrical shock, fire or explosion.

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