Daikin VRV II REYQ8M8W1B Instruction Manual

System air conditioner

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INSTALLATION MANUAL
System air conditioner
REYQ8M8W1B
REYQ10M8W1B
REYQ12M8W1B
REYQ14M8W1B
REYQ16M8W1B
REYQ18M
REYQ20M
REYQ22M
REYQ24M
REYQ26M
REYQ28M
REYQ30M
REYQ32M
REYQ34M
REYQ36M
REYQ38M
REYQ40M
REYQ42M
REYQ44M
REYQ46M
REYQ48M

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Summary of Contents for Daikin VRV II REYQ8M8W1B

  • Page 1 INSTALLATION MANUAL System air conditioner REYQ8M8W1B REYQ10M8W1B REYQ12M8W1B REYQ14M8W1B REYQ16M8W1B REYQ18M REYQ20M REYQ22M REYQ24M REYQ26M REYQ28M REYQ30M REYQ32M REYQ34M REYQ36M REYQ38M REYQ40M REYQ42M REYQ44M REYQ46M REYQ48M...
  • Page 2 REYQ8+10 REYQ12~16 (mm) REYQ8~16 REYQ18~48 A B C F1 F2 F1 F2 Q1 Q2 Q1 Q2 Q1 Q2...
  • Page 3 REYQ8~16 REYQ8~16 REYQ18~48 REYQ18~48 A B C F1 F1 F2 F2 Q1 Q2 REYQ8+10 REYQ12~16 3 5 7 A B C F F2 Q1 Q2 TO IN/D UNIT TO OUT/D UNIT TO MULTI UNIT F1 F2 IN/D OUT/D IN/D OUT/D IN/D OUT/D F1 F2 F1 F2...
  • Page 4 REYQ8+10 REYQ12~16 1 10 NOTES...
  • Page 5 3PW25004-1...
  • Page 6: Table Of Contents

    22.4 to 134 kW and nominal heating capacities ranging from 25.0 to 150 kW. 11. Disposal requirements............. 20 The REYQ-M units can be combined with Daikin VRV indoor units for air conditioning purposes, and suitable for R-410A. READ THIS MANUAL ATTENTIVELY BEFORE STARTING UP THE UNIT.
  • Page 7: Combination

    1.1. Combination 1.3. Optional accessories The indoor units can be installed in the following range. To install the above outdoor units, the following optional parts are also required. Always use appropriate indoor units compatible with R-410A. To learn which models of indoor units are compatible with Refrigerant branching kit (for R-410A only: Always use an R-410A, refer to the product catalogs.
  • Page 8: Inspecting And Handling The Unit

    4. I There is no danger of fire due to leakage of inflammable gas. NSPECTING AND HANDLING THE UNIT Ensure that water cannot cause any damage to the location in At delivery, the package should be checked and any damage should case it drips out the unit (e.g.
  • Page 9: Refrigerant Piping

    6.1. Selection of piping material PRECAUTION Block all gaps in the holes for passing out piping and wiring using Foreign materials inside pipes (including oils for fabrication) must be sealing material (field supply). (Small animals may enter the 30 mg/10 m or less. machine.) Use the following material specification for refrigerant piping: Example: passing piping out through the front...
  • Page 10 One outdoor unit installed: In case of REYQ8~16 Precautions when knocking out knock holes Front connection: Be sure to avoid damaging the casing. Remove the stop valve cover to connect. (See figure 5) Side (bottom) connection: After knocking out the holes, we recommend you paint the edges and areas around the edges using the repair paint to Remove the knock holes on the bottom frame and route the piping prevent rusting.
  • Page 11 Prohibited pattern Precautions when selecting branch piping. If the overall equivalent piping length is ≥90 m, be sure to enlarge the main pipe in the liquid-side piping. Do not enlarge the main pipe in the discharge-side and suction-side piping. [Liquid side] REYQ8+10 Ø9.5 Ø12.7...
  • Page 12: Example Of Connection

    6.3. Example of connection Installation manual REYQ8~16M8W1B VRVII System air conditioner 4PW23712-1...
  • Page 13 REYQ8~16M8W1B Installation manual VRVII System air conditioner 4PW23712-1...
  • Page 14: Leak Test And Vacuum Drying

    6.4. Leak test and vacuum drying Stop valve operation procedure Introduction The units were checked for leaks by the manufacturer. Confirm the sizes of the stop valves connected to the system figure 12 and refer to "6.6. Additional refrigerant charge" on referring to the table below.
  • Page 15: Pipe Insulation

    FLARE SHAPE and FLARENUT TIGHTENING TORQUE If there is a possibility that condensation on the stop valve might drip down into the indoor unit through gaps in the insulation and Precautions when connecting pipes piping because the outdoor unit is located higher than the indoor See the following table for flare part machining dimensions.
  • Page 16: Field Wiring

    To avoid compressor breakdown. Do not charge the refrigerant After the refrigerant charge hose is removed, make sure to fully more than the specified amount. open the liquid stop valve. Otherwise the piping may burst due to blocked liquid. This outdoor unit is factory charged with refrigerant and depending on pipe sizes and pipe lengths some systems require After the refrigerant is charged, turn on the power for the indoor additional charging of refrigerant.
  • Page 17: Power Circuit And Cable Requirements

    7.2. Power circuit and cable requirements R4T......Thermistor (coil-deicer) R5T......Thermistor (coil-outlet) A power circuit (see table below) must be provided for connection of R6T......Thermistor (liquid-pipe receiver) the unit. This circuit must be protected with the required safety devices, i.e. a main switch, a slow blow fuse on each phase and an R7T......
  • Page 18: Examples

    Only proceed with wiring work after blocking off all power. Field line connection Always ground wires. (In accordance with national regulations of the pertinent country.) L1, L2, L3, N-phase of the power cord should be clamped to the plastic bracket using field supplied clamp material. Do not connect the ground wire to gas pipes, sewage pipes, lightning rods, or telephone ground wires.
  • Page 19 Field line connection: transmission wiring and cool/heat Precautions when laying power wiring selection Use round pressure terminals for connections to the power terminal block. In case of REYQ8~16 (See figure 19) When none are available, follow the instructions below. Do not connect wiring of different thicknesses to the Outdoor unit power terminal block.
  • Page 20 Never connect 400 V to the terminal block of the interconnecting Picking power line and transmission line wiring. Doing so will break the entire system. Be sure to let the power line and the transmission line pass The wiring from the indoor units must be connected to the F1/F2 through a conduit hole.
  • Page 21: Before Operation

    8. B Insulation test of the main power circuit EFORE OPERATION Using a megatester for 500 V, check that the insulation resistance of 2 MΩ or more is attained by applying a voltage of 500 V DC between power terminals and earth. Never use the 8.1.
  • Page 22 Setting the push button switch (BS1~5) Setting mode 2 Function of the push button switch which is located on the outdoor The H1P led is on. unit PCB (A1P): Setting procedure TEST: C/H SELECT MODE L.N.O.P DEMAND Push the button according to the required function HWL: MASTER SLAVE...
  • Page 23: Test Operation

    8.4. Test operation Confirmation of the set mode The following items can be confirmed by setting mode 1 (H1P NOTE In case of 18~48 type: check the setting and the led is off) indication results. Refer to chapter "Caution for 18~48 type units"...
  • Page 24: Service Mode Operation

    Measure to be taken when operation finishes abnormally Temperature adjustment operation confirmation 1. Confirm the error code on the remote controller. After the test run is over, operate the unit normally. (Heating is not possible if the outdoor temperature is 24°C or higher.) 2.
  • Page 25: Caution For Refrigerant Leaks

    10.C Calculate the smallest room volume (m AUTION FOR REFRIGERANT LEAKS In a case such as the following, calculate the volume of (A), (B) (Points to note in connection with refrigerant leaks.) as a single room or as the smallest room. Where there are no smaller room divisions Introduction The installer and system specialist shall secure safety against...
  • Page 26 Zandvoordestraat 300, B-8400 Oostende, Belgium 4PW23712-1...

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