Daikin FXDQ07MVJU Installation Manual
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Daikin FXDQ07MVJU Installation Manual

Daikin FXDQ07MVJU Installation Manual

Vrv system inverter air conditioners
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See also: Serveice Manual , Service Manual
SYSTEM Inverter Air Conditioners
MODEL
Ceiling-mounted duct type low static pressure unit
FXDQ07MVJU
FXDQ09MVJU
FXDQ12MVJU
FXDQ18MVJU
FXDQ24MVJU
Read these instructions carefully before installation.
Keep this manual in a handy place for future reference.
This manual should be left with the equipment owner.

INSTALLATION MANUAL

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Summary of Contents for Daikin FXDQ07MVJU

  • Page 1: Installation Manual

    INSTALLATION MANUAL SYSTEM Inverter Air Conditioners MODEL Ceiling-mounted duct type low static pressure unit FXDQ07MVJU FXDQ09MVJU FXDQ12MVJU FXDQ18MVJU FXDQ24MVJU Read these instructions carefully before installation. Keep this manual in a handy place for future reference. This manual should be left with the equipment owner.

  • Page 2: Table Of Contents

    VRV SYSTEM Inverter Air Conditioners Installation manual CONTENTS Refrigerant gas may produce toxic gas if it comes in contact with fire such as from a fan, heater, stove or cooking device. 1. SAFETY CONSIDERATIONS ..........1 Exposure to this gas could cause severe injury or death. 2.

  • Page 3: Before Installation

    A high surge current from lightning or other sources may • Remote controller (wireless kit) transmitting distance cause damage to the air conditioner. can result shorter than expected in rooms with elec- tronic fluorescent lamps. (inverter or rapid start types) •...

  • Page 4: Selecting Installation Site

    2-2 ACCESSORIES Does drainage flow Condensate may drip. Check the following accessories are included with your unit. smoothly? Does the power supply Metal Drain hose The unit may malfunction or Name Insulation for fitting Sealing pad voltage correspond to that clamp (1) the components burn out.

  • Page 5: Preparations Before Installation

    (2) Use suspension bolts for installation. Check whether the ceiling is strong enough to support the weight of the unit or not. If there is a risk, reinforce the ceiling before installing the unit. (Installation pitch is marked on the carton box for installa- *12 or tion.

  • Page 6: Indoor Unit Installation

    (3) Open the installation hole. (Pre-set ceilings) • Once the installation hole is opened in the ceiling where Main unit the unit is to be installed, pass refrigerant piping, drain piping, transmission wiring, and remote controller wiring Attach the filter to the Force main unit while pushing (It is not necessary if using a wireless remote controller)

  • Page 7: Refrigerant Piping Work

    Table 1 Pipe size Tightening torque Flare dimensions A Flare shape (in.) (in.) (ft.lbf) (in.) φ1/4 10.4–12.7 0.342–0.358 φ3/8 24.1–29.4 0.504–0.520 R0.016-0.031 φ1/2 36.5–44.5 0.638–0.654 Level Vinyl tube φ5/8 45.6–55.6 0.760–0.776 (4) Tighten the upper nut. CAUTION Overtightening may damage the flare and cause leaks. REFRIGERANT PIPING WORK Be careful for oil not to adhere to any portions other than a flare part.

  • Page 8: Drain Piping Work

    • When brazing the refrigerant piping, perform nitrogen DRAIN PIPING WORK replacement first, or perform the brazing (CAUTION 2) while feeding nitrogen into the refrigerant piping (CAUTION 1), and CAUTION finally connect the indoor unit using the flare connections. • The connection opening on the drain piping may vary (Refer to Fig.
  • Page 9 Large sealing CAUTION pad (5) Metal clamp (1) • The electric wiring work shall be performed by qualified (accessory) (accessory) electricians. Metal clamp (1) • If workers not having the electrician qualification have per- (accessory) formed the electric wiring work, the steps 3 to 7 shall be Tape Drain hose (2) ≤1/8 in.

  • Page 10: Installing The Duct

    INSTALLING THE DUCT • Install a wiring interrupter or ground-fault circuit interrupter for the power wiring. Connect the duct supplied in the field. • Make sure the ground resistance is no greater than 100Ω. Air inlet side • To avoid short circuiting the power supply wire, be sure to use •...

  • Page 11: Wiring Example

    10. WIRING EXAMPLE CAUTION • When clamping the wiring, use the included clamp material (9) 10-1 HOW TO CONNECT WIRINGS and (10) as shown in the Fig.14 to prevent outside pressure • Wire only after removing the control box lid as shown in being exerted on the wiring connections and clamp firmly.
  • Page 12 〈 Precautions when laying power supply wiring 〉 [ WIRING EXAMPLE ] • Wiring of different thicknesses cannot be connected to the No. 1 system When using 1 remote controller for power supply wiring terminal block. (Slack in the power sup- 1 indoor unit ply wiring may cause abnormal heat.) Power supply...

  • Page 13: Field Setting And Test Run

    (2) Turn the MAIN/SUB changeover switch on one of the Wire specification Sheathed vinyl cord or cable (2 wires) two remote controller PC boards to “S”. Gauge AWG18 – 16 (Leave the switch of the other remote controller set to “M”.) Length Max.
  • Page 14 11-3 SETTING THE FILTER SIGN DISPLAY INTERVAL (4) After finishing the test run, make sure to check drain- age in the drain pump according to “7. DRAIN PIPING • Explain the following to the customer if the filter dirt settings WORK”.
  • Page 15 3PN06240-4E EM05A056 (0601)

This manual is also suitable for:

Fxdq12mvjuFxdq18mvjuFxdq24mvjuFxdq09mvju

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