Related Manuals for Daikin LRLEQ3BY1
Summary of Contents for Daikin LRLEQ3BY1
- Page 1 Installation and operation manual Air-cooled refrigeration condensing unit LRMEQ3BY1 LRMEQ4BY1 Installation and operation manual LRLEQ3BY1 English Air-cooled refrigeration condensing unit LRLEQ4BY1...
- Page 2 (mm) — ≥100 A, B, C — ≥100 ≥100 ≥100 B, E — ≥100 ≥1000 ≤500 A, B, C, E — ≥150 ≥150 ≥150 ≥1000 ≤500 — ≥500 D, E — ≥1000 ≥1000 ≤500 B, D — ≥100 ≥500 B, D, E <H ≤½H ≥250...
- Page 3 2P452548-2B...
- Page 4 2P452548-2B...
- Page 5 2P452548-3C...
- Page 6 2P452548-3C...
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Page 7: Table Of Contents
Table of contents 6.1.2 To access the field setting components....... 23 Table of contents 6.1.3 Field setting components ..........23 6.1.4 To access mode 1 or 2 ..........23 6.1.5 To use mode 1 ............. 24 6.1.6 To use mode 2 ............. 24 1 About the documentation 6.1.7 Mode 1 (and default situation): Monitoring settings .. -
Page 8: For The Installer
Technical engineering data ▪ A subset of the latest technical data is available on the regional Daikin website (publicly accessible). ▪ The full set of latest technical data is available on the Daikin extranet (authentication required). For the installer About the box Outdoor unit (10.1 N·m) -
Page 9: System Layout
4 Preparation ▪ When the heat exchanger is contaminated. Foreign materials System layout (including oils for fabrication) must be ≤30 mg/10 m. Reuse allowed In other cases than above, you may reuse existing indoor heat exchangers. However, if the old condensing unit did NOT use the same refrigerant (R410A) and the same oil (FVC68D) as the new one, you must clean the heat exchanger tubes to remove any residue. -
Page 10: Refrigerant Piping Requirements
4 Preparation In case the required pipe sizes (inch sizes) are not available, it is Item Description also allowed to use other diameters (mm sizes), taken the following Piping insulation If deteriorated, must be replaced. into account: Must comply with requirements. See ▪... -
Page 11: Refrigerant Piping Length And Height Difference
4 Preparation For LRLEQ3+4 Description Model name Refnet joint KHRQ22M20T Subcooling ratio (K) KHRQ22M29T9 Te –45°C –40°C –35°C –30°C –25°C –20°C Do NOT connect 2 or more headers in series. For the gas side choose the refnet header so that the diameter of the 20°C header is equal to the main piping diameter or equal to one size-up of the main piping diameter. -
Page 12: Installation
5 Installation NOTICE Low-noise switch. If you want to remotely turn ON/OFF low-noise operation (see setting [2‑18]), you must install a low-noise switch. voltage-free contact microcurrent (≤1 mA, 12 V DC). Connect to X2M/A+B. 4× M12 NOTICE Output signals. The outdoor unit is provided with a terminal (X3M) that can output 4 different signals. -
Page 13: Connecting The Refrigerant Piping
5 Installation Connecting the refrigerant piping 3 When the stop valve cannot be turned any further, stop turning. DANGER: RISK OF BURNING 4 Install the stop valve cover. Result: The valve is now open. 5.3.1 Using the stop valve and service port To close the stop valve To handle the stop valve 1 Remove the stop valve cover. -
Page 14: To Remove The Pinched Pipes
5 Installation Sealing part (do NOT apply thread-locking fluid) p < p > Screw thread with thread-locking fluid To handle the service port ▪ Always use a charge hose equipped with a valve depressor pin, since the service port is a Schrader type valve. R410A ▪... -
Page 15: Guidelines When Installing A Dryer
5 Installation Where/how Install the sight glass before the dryer, as near to the outdoor unit as possible. Install horizontally. 2 Choose a piping route (a, b, or c). a Sight glass b Dryer When brazing Follow the brazing instructions in the sight glass manual. -
Page 16: Checking The Refrigerant Piping
5 Installation If there is a possibility of moisture being present in the refrigerant ▪ Connect the gas piping accessories (c, d, e), and cut them to piping (for example, water may have entered the piping), first carry the required length (e1). This is necessary because the size out the vacuum drying procedure below until all moisture has been of the gas stop valve is Ø15.9 while the piping between removed. -
Page 17: To Perform A Leak Test
5 Installation 5.4.4 To perform a leak test LRMEQ* LRLEQ* Gas pipe minimum temperature –20°C –45°C The leak test must satisfy the specifications of EN378‑2. Condensation might form on the surface of the insulation. To check for leaks: Vacuum leak test ▪... -
Page 18: To Charge Refrigerant
5 Installation Formula for LRMEQ3+4 3 Pre‑charge refrigerant until the determined additional refrigerant amount is reached or pre‑charging is not possible anymore, and R=[(X ×Ø9.5)×0.06+(X ×Ø6.4)×0.02]+A+B then close valves B and C. Additional refrigerant to be charged [in kg and rounded off 4 Do one of the following: to 1 decimal place] Total length [m] of liquid piping size at Øa... -
Page 19: Error Codes When Charging Refrigerant
5 Installation Charging refrigerant (with the compressor running) The remaining additional refrigerant charge can be charged by operating the outdoor unit. 13 Connect as shown. Make sure valve A is closed. p < p > Sealing state (= sufficient refrigerant) Insufficient refrigerant Sight glass Full of liquid... -
Page 20: Connecting The Electrical Wiring
5 Installation 3N~ 50 Hz NOTICE 380-415 V L1 L2 L3 In Europe, the greenhouse gas emissions of the total refrigerant charge in the system (expressed as tonnes CO equivalent) is used to determine the maintenance intervals. Follow the applicable legislation. Formula to calculate the greenhouse gas emissions: GWP value of the refrigerant ×... -
Page 21: Guidelines When Knocking Out Knockout Holes
5 Installation 5.7.2 Guidelines when knocking out knockout F1 F2 holes NOTICE Precautions when making knockout holes: NOTICE ▪ Avoid damaging the casing. Low-noise switch. If you want to remotely turn ON/OFF ▪ After making the knockout holes, we recommend you low-noise operation (see setting [2‑18]), you must install a remove the burrs and paint the edges and areas low-noise... -
Page 22: Configuration
6 Configuration 8 Route the wiring through the frame and connect it to it. NOTICE Output signals. The outdoor unit is provided with a Routing through terminal (X3M) that can output 4 different signals. The the frame signal is 220~240 V AC. The maximum load for all signals is 0.5 ... -
Page 23: To Access The Field Setting Components
6 Configuration 7‑LEDs display ▪ A display to read feedback from the PCB The display gives feedback about the field settings, which are Field settings are defined by their mode, setting and value. Example: defined as [Mode-Setting]=Value. [2‑1]=2. Shows the mode PC configurator H2P~H7P Shows the settings and values, represented in binary code... -
Page 24: To Use Mode 1
6 Configuration 6.1.5 To use mode 1 Action Button/display BS1 [1×] Quit mode 2. In mode 1 (and in default situation) you can read out some information. "6.1.7 Mode 1 (and default situation): Monitoring settings" on page 24. 6.1.7 Mode 1 (and default situation): Monitoring settings Example: 7‑LEDs display –... -
Page 25: To Connect The Pc Configurator To The Outdoor Unit
7 Commissioning Setting Value Description (= binary) LRMEQ* LRLEQ* [2‑6] Address not set Address 1 Address of the outdoor unit for communication with the Modbus communication box (BRR9A1V1). Address 2 For more information, see the installation manual of the Modbus Address 3 communication box. -
Page 26: Checklist During Commissioning
7 Commissioning Installation Installation date and field setting Check that the unit is properly installed, to avoid abnormal Be sure to keep record of the installation date on the rear noises and vibrations when starting up the unit. of the front panel according to EN60335‑2‑40 and keep record of the contents of the field setting(s). -
Page 27: Correcting After Abnormal Completion Of The Test Run
8 Troubleshooting 7.3.3 Correcting after abnormal completion of Action Display the test run Select mode 1. [1×] The test operation is only completed if no malfunction occurs. In Select a malfunction. Possible malfunctions: case of a malfunction, perform correcting actions as explained in the [X×] error code table (see "8.1.2 ... - Page 28 8 Troubleshooting Code Description Criteria Times of Output signal Cause Solution retry Wet operation from refrigeration Suction superheat <5 K AND discharge Caution ▪ Excessive frost formation on indoor ▪ Adjust defrost cycle suction pipe superheat <15 K AND discharge temperature side ▪...
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Page 29: Technical Data
9 Technical data Technical data A subset of the latest technical data is available on the regional Daikin website (publicly accessible). The full set of latest technical data is available on the Daikin extranet (authentication required). Service space: Outdoor unit When mounting units side by side, the piping route must be to the front, to the back or downwards. -
Page 30: For The User
10 About the system English Translation HAP (A*P) Running LED (service monitor is green) /12.2 Connection ** continues on page H*P (A1P) LED (service monitor is orange) 12 column 2 K1M (A2P) Magnetic contactor Several wiring possibilities K*R (A*P) Magnetic relay Option Reactor Not mounted in switch box... -
Page 31: Operation
11 Operation Indoor unit (Showcase) WARNING The refrigerant in the system is safe and normally does not leak. If the refrigerant leaks in the room, contact with a fire Operation of a burner, a heater or a cooker may result in a harmful gas. -
Page 32: Symptoms That Are Not System Malfunctions
14 Relocation If after checking all above items, it is impossible to fix the problem WARNING yourself, contact your installer and state the symptoms, the complete Stop operation and shut off the power if anything model name of the unit (with manufacturing number if possible) and unusual occurs (burning smells etc.). - Page 36 4P545024-1 4P441336-1 0000000J 0000000I 4P545024-1 2018.09...