Related Manuals for Daikin LRMEQ3AY1
Summary of Contents for Daikin LRMEQ3AY1
- Page 1 Installer and user reference guide Air-cooled refrigeration condensing unit Installer and user reference guide LRMEQ3AY1 English Air-cooled refrigeration condensing unit LRMEQ4AY1...
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Page 2: Table Of Contents
Table of Contents 6.4.5 To flare the pipe end ............ 15 Table of Contents 6.4.6 To braze the pipe end ..........15 6.4.7 Using the stop valve and service port ......15 6.4.8 Guidelines when installing a sight glass ...... 16 6.4.9 Guidelines when installing a dryer ....... -
Page 3: General Safety Precautions
1 General safety precautions 13 Technical data DANGER: RISK OF BURNING 13.1 Overview: Technical data ............33 Indicates a situation that could result in burning because of 13.2 Dimensions: Outdoor unit............33 extreme hot or cold temperatures. 13.3 Service space: Outdoor unit ............34 13.4 Components: Outdoor unit ............ -
Page 4: For The Installer
Make sure installation, testing and applied materials comply with applicable legislation (on top of the ▪ In places where there is a risk of fire due to the leakage of instructions described in the Daikin documentation). flammable gases (example: thinner or gasoline), carbon fibre, ignitable dust. -
Page 5: Brine
1 General safety precautions WARNING WARNING Always recover the refrigerant. Do NOT release them Take sufficient precautions in case of brine leakage. If directly into the environment. Use a vacuum pump to brine leaks, ventilate the area immediately and contact evacuate the installation. -
Page 6: About The Documentation
Depending on the radio waves, a distance of 1 metre may not be sufficient. Latest revisions of the supplied documentation may be available on the regional Daikin website or via your dealer. The original documentation is written in English. All other languages are translations. -
Page 7: Outdoor Unit
4 About the units ▪ At delivery, the unit must be checked for damage. Any damage must be reported immediately to the carrier's claims agent. ▪ Bring the packed unit as close as possible to its final installation position to prevent damage during transport. ▪... -
Page 8: Identification Label: Outdoor Unit
5 Preparation ▪ Solenoid valve. Install an R410A solenoid valve (with an 4.2.1 Identification label: Outdoor unit operating differential pressure of 3.5 MPa [35 bar] or more) on the Location primary side of the mechanical thermostatic expansion valve for each indoor unit. ▪... -
Page 9: Installation Site Requirements Of The Outdoor Unit
5 Preparation Do NOT install the unit in the following places: 5.2.1 Installation site requirements of the outdoor unit ▪ Sound sensitive areas (e.g. near a bedroom and the like), so that the operation noise will cause no trouble. INFORMATION Note: If the sound is measured under actual installation conditions, the measured value might be higher than the sound Also read the following requirements:... -
Page 10: Additional Installation Site Requirements Of The Outdoor Unit In Cold Climates
5 Preparation This system uses R410A as refrigerant. R410A itself is an entirely safe non-toxic, non-combustible refrigerant. Nevertheless care must be taken to ensure that the system is installed in a room which is sufficiently large. This assures that the maximum concentration level of refrigerant gas is not exceeded, in the unlikely event of major leak in the system and this in accordance to the local applicable regulations and standards. -
Page 11: Preparing Refrigerant Piping
5 Preparation Where there is a room division, but there is an opening Item Description between the rooms sufficiently large to permit a free Flare connections May not be reused. Make new ones to flow of air back and forth. prevent leaks. -
Page 12: Refrigerant Piping Length And Height Difference
5 Preparation Requirement Limit Maximum actual piping length 30 m ▪ Example: a+b+c+d2≤Limit Maximum total piping length 30 m ▪ Example: a+b+c+d1+d2+e+f≤Limit Maximum length first branch kit-indoor 10 m unit ▪ Example: b+c+d2≤Limit Maximum height Outdoor higher than 5 m difference outdoor- indoor indoor ▪... -
Page 13: Installation
6 Installation Installation Mounting the outdoor unit 6.3.1 About mounting the outdoor unit Overview: Installation Typical workflow This chapter describes what you have to do and know on-site to Mounting the outdoor unit typically consists of the following stages: install the system. Providing the installation structure. -
Page 14: To Install The Outdoor Unit
6 Installation ▪ Keeping in mind the guidelines for: NOTICE ▪ Pipe bending Fix the outdoor unit to the foundation bolts using nuts with resin washers (a). If the coating on the fastening area is ▪ Flaring pipe ends stripped off, the nuts rust easily. ▪... -
Page 15: Pipe Bending Guidelines
6 Installation ▪ Always use two wrenches together when loosening a flare nut. Flare’s inner surface must be flawless. The pipe end must be evenly flared in a perfect circle. ▪ Always use a spanner and torque wrench together to tighten the Make sure the flare nut is fitted. -
Page 16: Guidelines When Installing A Sight Glass
6 Installation NOTICE Thread-locking fluid. Before reattaching the stop valve cover, apply thread-locking fluid to the screw thread (NOT to the cover or sealing part). Otherwise, condensation water might enter and freeze. Possible consequence: Deformation, refrigerant leakage compressor malfunction. Service port Stop valve cover Hexagon hole Shaft... -
Page 17: Guidelines When Installing A Dryer
6 Installation 3 If you have chosen the downwards piping route: When brazing Follow the brazing instructions in the sight glass manual. ▪ Drill (a, 4×) and remove the knockout hole (b). ▪ Cut out the slits (c) with a metal saw. 6.4.9 Guidelines when installing a dryer 4×... -
Page 18: Checking The Refrigerant Piping
6 Installation T-joint for branching 6.5.3 Checking refrigerant piping: Setup ▪ Make sure the "horizontal" gas piping slopes down to the outdoor p < p > unit. Pressure reducing valve Nitrogen Weighing scales Refrigerant R410A tank (siphon system) Vacuum pump Liquid line stop valve Gas piping sloping down from indoor units to branching Gas line stop valve... -
Page 19: To Perform Vacuum Drying
6 Installation 6.5.5 To perform vacuum drying Charging refrigerant NOTICE 6.7.1 About charging refrigerant The connections to the indoor units and all indoor units should also be leak and vacuum tested. Keep, if existing, The outdoor unit is factory charged with refrigerant, but depending all (field supplied) field valves to the indoor units open as on the field piping you have to charge additional refrigerant. -
Page 20: To Determine The Additional Refrigerant Amount
6 Installation 4 Do one of the following: 6.7.3 To determine the additional refrigerant amount Then The determined additional Disconnect the manifold from INFORMATION refrigerant amount is reached the liquid line. For final charge adjustment in a test laboratory, contact Continue with the "Checking your dealer. -
Page 21: Error Codes When Charging Refrigerant
6 Installation Charging refrigerant (via the refrigerant charging port) A lot of foam in the liquid 23 Turn off the external operation switch. The remaining additional refrigerant charge can be charged by operating the outdoor unit. NOTICE 13 Connect as shown. Make sure valve A is closed. Make sure to open all stop valves after (pre-) charging the p <... -
Page 22: Connecting The Electrical Wiring
6 Installation NOTICE NOTICE In Europe, the greenhouse gas emissions of the total ▪ Field wiring wiring may not touch internal piping in refrigerant charge in the system (expressed as tonnes order to avoid wire damage due to high temperature -equivalent) is used to determine the maintenance piping. -
Page 23: Guidelines When Knocking Out Knockout Holes
6 Installation NOTICE Wire type Installation method Single core wire If the power supply has a missing or wrong N-phase, equipment will break down. AA´ A´ NOTICE Do NOT install a phase advancing capacitor, because this unit is equipped with an inverter. A phase advancing capacitor will reduce performance and may cause accidents. -
Page 24: Finishing The Outdoor Unit Installation
6 Installation Routing through E1 E2 the frame NOTICE Low-noise switch. If you want to remotely turn ON/OFF low-noise operation (see setting [2‑25]), you must install a low-noise switch. voltage-free contact a Power supply cable and error output microcurrent (≤1 mA, 12 V DC). cable 5 Connect the error output as follows: b Operation switch cable and low-noise... -
Page 25: Configuration
7 Configuration BS1~BS5 Push buttons Configuration H1P~H7P 7‑LEDs display LED for indication during initialisation ON ( ) OFF ( ) Flashing ( ) Overview: Configuration Push buttons Use the push buttons to make the field settings. Operate the push This chapter describes what you have to do and know to configure buttons with an insulated stick (such as a closed ball-point pen) to the system after it is installed. -
Page 26: To Use Mode 1
7 Configuration Power ON Action Button/display Default situation BS3 [1×] Select value 4 (= –4°C). LED indication when there is a malfunction If the default situation is not displayed after 10~12 minutes, check a: Display the current value. BS2 [X×] the malfunction code. Solve the malfunction code accordingly. b: Change to 4. -
Page 27: Mode 2: Field Settings
8 Commissioning 7.2.8 Mode 2: Field settings In mode 2 you can make field settings to configure the system. The LEDs give a binary representation of the setting/value number. Setting Value Description (= binary) [2‑8] –10°C –8°C target evaporating temperature. –6°C –4°C (default) -
Page 28: Checklist Before Commissioning
8 Commissioning DANGER: RISK OF BURNING Fuses, circuit breakers, or protection devices Check that the fuses, circuit breakers, or the locally CAUTION installed protection devices are of the size and type specified chapter "5.4.1 Safety device Do not perform the test operation while working on the requirements" on page 12. -
Page 29: Correcting After Abnormal Completion Of The Test Run
9 Hand-over to the user NOTICE 8.4.4 Operating the unit Be sure to turn on the power 6 hours before operation in Once the unit is installed and test operation of outdoor unit and order to have power running to the crankcase heater and indoor units is finished, the operation of the system can start. -
Page 30: Checklist For Yearly Maintenance Of The Outdoor Unit
11 Troubleshooting 2 Measure the voltage between terminals on the terminal block 4 Press BS1 to stop vacuuming mode. for power supply with a tester and confirm that the power supply is shut off. In addition, measure points as shown in the figure 10.4.2 To recover refrigerant below, with a tester and confirm that the voltage of the capacitor... -
Page 31: Error Codes: Overview
11 Troubleshooting Action Display Code Cause Solution Select mode 1. Fan motor malfunction Check connection on PCB [1×] or actuator. (M1F) – A2P (X106A) Select a malfunction. Possible malfunctions: (M2F) – A2P (X107A) [X×] ("X×" depends on the [1‑14] Latest malfunction: Electronic expansion valve Check connection on PCB setting that you want... -
Page 32: 12 Disposal
12 Disposal Code Cause Solution Transmission outdoor unit - Check connection. inverter: INV1 / FAN1 transmission trouble INV1 unbalanced power Check if power supply is supply voltage within range. Reversed power supply Correct phase order. phase malfunction Insufficient supply voltage Check if the supply voltage is supplied properly. -
Page 33: 13 Technical Data
13 Technical data Technical data Latest information can be found in the technical engineering data. 13.1 Overview: Technical data This chapter contains information about: • Dimensions • Service space • Components • Piping diagram • Wiring diagram • Technical specifications •... -
Page 34: Service Space: Outdoor Unit
13 Technical data 13.3 Service space: Outdoor unit When mounting units side by side, the piping route must be to the front, to the back or downwards. In this case the piping route to the side is not possible. When mounting the units side by side and routing the piping to the back, you must keep a distance of ≥250 mm between the units (instead of ≥100 mm as shown on the figures below). - Page 35 13 Technical data Multiple rows of units ( b (mm) ≥100 ≥100 ≤½H b≥250 ½H <H ≤H b≥300 ≥100 ≥100 ≥100 >H ≥2000 ≥3000 ≥100 ≥200 ≥100 ≥1000 ≥600 ≥1500 Stacked units (max. 2 levels) ( ≥100 ≥100 ≥300 ≥1000 ≥100 ≥100 ≥100...
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Page 36: Components: Outdoor Unit
13 Technical data 13.4 Components: Outdoor unit M1F M2F S1PH Terminal strip (power supply wiring) Heat exchanger Terminal strip (operation switch, low-noise switch and error Subcool heat exchanger output) Switch box Electronic expansion valve (main) Service port (high pressure) Electronic expansion valve (subcool heat exchanger) Service port (refrigerant charge) Solenoid valve (unloader circuit) Oil separator... -
Page 37: Piping Diagram: Outdoor Unit
13 Technical data 13.5 Piping diagram: Outdoor unit S1NPH Field piping (liquid: Ø9.5 flare connection) Field piping (gas: Ø15.9 flare connection) Stop valve (with service port 5/16") Filter (5×) Subcool heat exchanger Pressure regulating valve Heat exchanger Service port (high pressure) Oil separator Capillary tube (3×) Service port (refrigerant charge) -
Page 38: Wiring Diagram: Outdoor Unit
13 Technical data 13.6 Wiring diagram: Outdoor unit The wiring diagram is delivered with the unit, located at the inside of the service cover. 3N~ 380-415 V 50 Hz L3 N Q1DI /YLW H2P H4P WHT BLK X26A X27A X28A S1NPH X17A E1HC... - Page 39 13 Technical data K5R, K6R Magnetic relay Reactor Motor (compressor) Motor (fan) (upper) Motor (fan) (lower) Switching power supply Q1DI Earth leakage circuit breaker (300 mA) R1 (A1P) Resistor R1 (A2P), Resistor R2 (A2P) Thermistor (air) Thermistor (M1C discharge) Thermistor (suction 1) Thermistor (subcool) Thermistor (suction 2) Thermistor (heat exchanger)
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Page 40: Technical Specifications: Outdoor Unit
13 Technical data 13.7 Technical specifications: Outdoor unit Technical specifications Specification LRMEQ3 LRMEQ4 Casing material Painted galvanised steel Dimensions h×w×d 1345×900×320 mm Weight 104 kg Operation range ▪ Evaporating temperature –10~2°C ▪ Outdoor temperature –10~43°C DB Capacity ▪ Refrigerating capacity (medium temperature) 5.90 kW 8.40 kW ▪... -
Page 41: For The User
14 About the system Electrical specifications Specification LRMEQ3 LRMEQ4 Power supply ▪ Name ▪ Phase ▪ Frequency 50 Hz ▪ Voltage 380-415 V Current ▪ Nominal running current (RLA) ▪ Starting current (MSC) ≤MCA ≤MCA ▪ Minimum circuit amps (MCA) 13.5 A ▪ Maximum fuse amps (MFA) 16 A ▪... -
Page 42: 17 Energy Saving And Optimum Operation
17 Energy saving and optimum operation ▪ To start and stop operation of the outdoor unit, use the external NOTICE operation switch. In Europe, the greenhouse gas emissions of the total ▪ If the main power supply is turned off during operation, operation refrigerant charge in the system (expressed as tonnes will restart automatically after the power turns back on again. -
Page 43: Troubleshooting
19 Troubleshooting Malfunction Measure Troubleshooting The system operates ▪ Check if air inlet or outlet of outdoor or If system malfunctions are likely to degrade the articles in the room/ but cooling is indoor unit is not blocked by obstacles. showcase, you can ask your installer to install an alarm (example: insufficient. -
Page 44: Symptom: Dust Comes Out Of The Unit
Symptom: Dust comes out of the unit Field supply When the unit is used for the first time in a long time. This is Equipment not made by Daikin that can be combined with because dust has gotten into the unit. product... - Page 48 4P442131-1 2016.03...