ceiling mounted duct - daikin

AMERICAS

FXMQ-MCeiling Mounted Duct Type

EDUS 39 - 600 - F4

EDUS39-600-F4

FXMQ-M 1

FXMQ-MCeiling Mounted Duct Type

1. Features ......................................................................................................22. Specifications ..............................................................................................33. Dimensions .................................................................................................44. Piping Diagrams..........................................................................................65. Wiring Diagrams..........................................................................................76. Electric Characteristics................................................................................87. Capacity Tables ..........................................................................................9

7.1 Cooling Capacity .......................................................................................... 97.2 Heating Capacity ........................................................................................ 10

8. Fan Performances.....................................................................................119. Sound Levels ............................................................................................1210.Installation .................................................................................................1311.Accessories...............................................................................................25

Features EDUS39-600-F4

1. Features

The Ceiling-Mounted Duct Type is a new addition to the VRV indoor units lineup that provides greater flexibility to satisfy individual air-conditioning needs even in a broad area.

Increased allowable external static pressure accommodates greater flexibility in duct design and application.

Ceiling-Mounted Duct Type

FXMQ30MFXMQ36MFXMQ48M

30 type 36, 48 type

2 FXMQ-M

EDUS39-600-F4 Specifications

2. Specifications

Ceiling Mounted Duct Type

Notes:1. Nominal cooling capacities are based on the following conditions:

Return air temperature: 80°FDB, 67°FWBOutdoor temperature: 95°FDBEquivalent ref. piping length: 25 ft / 7.5 m (Horizontal)

2. Nominal heating capacities are based on the following conditions: Return air temperature: 70°FDB.Outdoor temperature: 47°FDB, 43°FWBEquivalent ref. piping length: 25 ft / 7.5m (Horizontal)

3. Capacities are net, including a deduction for cooling (an addition for heating) for indoor fan motor heat.4. The airflow is set to STANDARD before leaving the factory. It is possible to switch between STANDARD ESP and HIGH ESP by changing the

terminals in the electrical box. Refer to the fan curves for actual fan performance.5. Air filter is not standard accessory, but please mount it in the duct system of the suction side.

Select its colorimetric method (gravity method) 50% or more.6. Anechoic chamber conversion value, measured under JISB8616 conditions. During actual operation,

these values are normally somewhat higher as a result of installation conditions.7. Refer to page 8 for Power Input.

Model FXMQ30MVJU FXMQ36MVJU FXMQ48MVJU

Cooling Capacity1 Btu/h 30,000 36,000 48,000

Heating Capacity2 Btu/h 34,000 40,000 54,000

Casing / Color Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate

Dimensions: (H × W × D) in (mm) 15-3/8 × 28-3/8 × 27-1/8” ( 390.5 x 720.7 x 689 mm)

15-3/8 × 43-3/4 × 27-1/8” ( 390.5 x 1111.2 x 689 mm)

15-3/8 × 43-3/4 × 27-1/8” ( 390.5 x 1111.2 x 689 mm)

Coil (Cross Fin Coil)

Rows × Stages × FPI 3 × 16 × 13 3 ×16 ×13 3 ×16 ×13

Face Area ft² 1.95 3.43 3.43

Fan

Model D11/2D3AA1VE 2D11/2D3AG1VE 2D11/2D3AF1VE

Type Sirocco Fan Sirocco Fan Sirocco Fan

Motor Output kW 0.15 0.27 0.43

Air Flow Rate (H/L) cfm 690/565 1,020/810 1,270/1,020

External Static Pressure4 in. Wg 0.66-0.43 0.71-0.43 1.0-0.72

Drive Direct Drive Direct Drive Direct Drive

Temperature Control Microprocessor Thermostat for Cooling and Heating

Microprocessor Thermostat for Cooling and Heating

Microprocessor Thermostat for Cooling and Heating

Sound Absorbing Thermal Insulation Material Glass Fiber Glass Fiber Glass Fiber

Air Filter5 See Note 5 See Note 5 See Note 5

Piping Connections

Liquid Pipes in / mm φ3/8” / 9.5 mm (Flare Connection) φ3/8” / 9.5 mm (Flare Connection) φ3/8” / 9.5 mm (Flare Connection)

Gas Pipes in / mm φ5/8” / 15.8 mm (Flare Connection) φ5/8” / 15.8 mm (Flare Connection) φ5/8” / 15.8 mm (Flare Connection)

Drain Pipe in / mmVP25

External Dia. 1-1/4Internal Dia. 1

VP25External Dia. 1-1/4

Internal Dia. 1

VP25External Dia. 1-1/4

Internal Dia. 1

Machine Weight (Mass) Lbs 99 139 144

Sound Level (H/L)6 dBA 45/41 45/41 48/45

Safety Devices Fuse,Thermal Fuse for Fan Motor

Fuse,Thermal Fuse for Fan Motor

Fuse,Thermal Fuse for Fan Motor

Refrigerant Control Electronic Expansion Valve Electronic Expansion Valve Electronic Expansion Valve

Connectable outdoor unit R-410A Series R-410A Series R-410A Series

Standard AccessoriesOperation Manual, Installation Manual, Drain Hose, Clamp Metal, Insulation for Fitting, Sealing Pads, Clamps, Screws.

Operation Manual, Installation Manual, Drain Hose, Clamp Metal, Insulation for Fitting, Sealing Pads, Clamps, Screws.

Operation Manual, Installation Manual, Drain Hose, Clamp Metal, Insulation for Fitting, Sealing Pads, Clamps, Screws.

Drawing No. C:3D042685

( ) ( ) ( )

FXMQ-M 3

Dimensions EDUS39-600-F4

3. Dimensions

FXMQ30MVJU

3D04

2508

4 FXMQ-M

EDUS39-600-F4 Dimensions

FXMQ36MVJUFXMQ48MVJU

3D04

2512

FXMQ-M 5

Piping Diagrams EDUS39-600-F4

4. Piping Diagrams

R1T : Thermistor for suction air temperatureR2T : Thermistor for liquid line temperatureR3T : Thermistor for gas line temperature

Capacity Gas Liquid

30/36/48M φ 5/8 φ 3/8

J:DU220-602J

Heat exchangerGas piping connection port

Liquid piping connection port

Fan

R3T

R1T

Electronicexpansion valve

Filter Filter

R2T

6 FXMQ-M

EDUS39-600-F4 Wiring Diagrams

5. Wiring Diagrams

FXMQ30M/36M/48MVJU

3D04

3176

A

FXMQ-M 7

Electric Characteristics EDUS39-600-F4

6. Electric Characteristics

8 FXMQ-M

EDUS39-600-F4 Capacity Tables

7. Capacity Tables7.1 Cooling Capacity

FXMQ-M

TC : Total capacity ; kWSHC : Sensible heat capacity ; kW

Refer to Outdoor Unit Capacity Tables for the actual performance data of each indoor and outdoor unit combination.

Cooling capacity

Unit sizeOutdoor air temp.

Indoor Air Temp. °FWB

61 64 67 70 72 75

TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC

°FDB MBh MBh MBh MBh MBh MBh MBh MBh MBh MBh MBh MBh

30

75 23.7 17.6 26.8 18.8 30.0 19.6 33.2 20.2 35.1 20.2 35.7 19.079 23.7 17.6 26.8 18.8 30.0 19.6 33.2 20.2 34.5 20.1 35.1 18.883 23.7 17.6 26.8 18.8 30.0 19.6 33.2 20.2 33.9 19.8 34.5 18.787 23.7 17.6 26.8 18.8 30.0 19.6 33.0 20.3 33.4 19.7 34.0 18.791 23.7 17.6 26.8 18.8 30.0 19.6 32.4 20.1 32.8 19.5 33.4 18.795 23.7 17.6 26.8 18.8 30.0 19.6 31.8 20.1 32.2 19.3 32.9 18.799 23.7 17.6 26.8 18.8 30.0 19.6 31.3 19.9 31.7 19.3 32.3 18.6

103 23.7 17.6 26.8 18.8 30.0 19.6 30.7 19.6 31.1 19.3 31.7 18.4

36

75 28.4 23.5 32.2 25.1 36.0 26.3 39.8 27.1 42.1 27.1 42.8 25.879 28.4 23.5 32.2 25.1 36.0 26.3 39.8 27.1 41.4 27.0 42.1 25.483 28.4 23.5 32.2 25.1 36.0 26.3 39.8 27.1 40.7 26.7 41.5 25.287 28.4 23.5 32.2 25.1 36.0 26.3 39.5 27.1 40.0 26.4 40.8 24.991 28.4 23.5 32.2 25.1 36.0 26.3 38.9 27.1 39.4 26.2 40.1 24.795 28.4 23.5 32.2 25.1 36.0 26.3 38.2 27.1 38.7 25.9 39.4 24.499 28.4 23.5 32.2 25.1 36.0 26.3 37.5 27.0 38.0 25.7 38.8 24.2

103 28.4 23.5 32.2 25.1 36.0 26.3 26.9 26.9 37.3 25.4 38.1 24.0

48

75 37.9 30.6 42.9 32.7 48.0 34.4 53.1 35.6 56.1 35.6 57.1 34.079 37.9 30.6 42.9 32.7 48.0 34.4 53.1 35.6 55.2 35.5 56.2 33.783 37.9 30.6 42.9 32.7 48.0 34.4 53.1 35.6 54.3 35.2 55.3 33.487 37.9 30.6 42.9 32.7 48.0 34.4 52.7 35.6 53.4 34.7 54.4 33.191 37.9 30.6 42.9 32.7 48.0 34.4 51.8 35.2 52.5 34.4 53.5 32.695 37.9 30.6 42.9 32.7 48.0 34.4 50.8 35.1 51.6 34.0 52.6 32.399 37.9 30.6 42.9 32.7 48.0 34.4 50.0 35.0 50.7 33.7 51.7 32.0

103 37.9 30.6 42.9 32.7 48.0 34.4 49.1 34.6 49.8 33.4 50.8 31.7

FXMQ-M 9

Capacity Tables EDUS39-600-F4

7.2 Heating Capacity

FXMQ-M

Refer to Outdoor Unit Capacity Tables for the actual performance data of each indoor and outdoor unit combination.

Heating Capacity

Indoor unitOutdoor Air Temp.

Indoor Air Temp. °FDB

62 65 68 70 72 75

TC TC TC TC TC TC

°FDB °FWB MBh MBh MBh MBh MBh MBh

30

22.0 20.0 29.2 29.1 29.1 29.0 29.0 28.9 26.0 24.0 30.6 30.5 30.5 30.4 30.4 30.3 30.0 28.0 32.0 31.9 31.9 31.8 31.8 30.6 35.0 32.0 33.3 33.3 33.2 33.2 32.5 30.6 39.0 36.0 34.7 34.7 34.6 34.0 32.5 30.6 44.0 40.0 36.1 36.1 35.0 34.0 32.5 30.6 47.0 43.0 37.2 36.9 35.0 34.0 32.5 30.6 51.0 47.0 38.6 36.9 35.0 34.0 32.5 30.6 54.0 50.0 38.7 36.9 35.0 34.0 32.5 30.6 57.0 53.0 38.7 36.9 35.0 34.0 32.5 30.6 60.0 56.0 38.7 36.9 35.0 34.0 32.5 30.6

36

22.0 20.0 35.0 35.0 34.9 34.8 34.8 34.7 26.0 24.0 36.7 36.6 36.6 36.5 36.5 36.4 30.0 28.0 38.4 38.3 38.2 38.2 38.1 36.8 35.0 32.0 40.0 40.0 39.9 39.8 39.0 36.8 39.0 36.0 41.7 41.6 41.6 40.0 39.0 36.8 44.0 40.0 43.4 43.3 42.0 40.0 39.0 36.8 47.0 43.0 44.6 44.2 42.0 40.0 39.0 36.8 51.0 47.0 46.3 44.2 42.0 40.0 39.0 36.8 54.0 50.0 46.5 44.2 42.0 40.0 39.0 36.8 57.0 53.0 46.5 44.2 42.0 40.0 39.0 36.8 60.0 56.0 46.5 44.2 42.0 40.0 39.0 36.8

48

22.0 20.0 46.7 46.6 46.5 46.5 46.4 46.3 26.0 24.0 48.9 48.8 48.7 48.7 48.6 48.5 30.0 28.0 51.1 51.1 51.0 50.9 50.8 49.0 35.0 32.0 53.4 53.3 53.2 53.1 52.0 49.0 39.0 36.0 55.6 55.5 53.2 54.0 52.0 49.0 44.0 40.0 57.8 57.7 56.0 54.0 52.0 49.0 47.0 43.0 59.5 59.0 58.0 54.0 52.0 49.0 51.0 47.0 61.7 59.0 56.0 54.0 52.0 49.0 54.0 50.0 62.0 59.0 56.0 54.0 52.0 49.0 57.0 53.0 62.0 59.0 56.0 54.0 52.0 49.0 60.0 56.0 62.0 59.0 56.0 54.0 52.0 49.0

10 FXMQ-M

EDUS39-600-F4 Fan Performances

8. Fan Performances

Note:1. The remote controller can be used to switch between HIGH and LOW.2. The airflow is set to STANDARD before leaving the factory. It is possible to switch between STANDARD ESP and

HIGH ESP by changing the terminals in the indoor unit electrical box.

FXMQ30MVJU FXMQ36MVJU FXMQ48MVJU

WG WG WG

FXMQ-M 11

Sound Levels EDUS39-600-F4

9. Sound Levels

Overall

Octave Band Level208V~230V

Ceiling Mounted Duct Type Notes:Operation noise differs with operation and ambient conditions.

dBA

Model 208~230V, 60Hz

H L

FXMQ30MVJU 45 41

FXMQ36MVJU 45 41

FXMQ48MVJU 48 45

FXMQ30MVJU FXMQ36MVJU FXMQ48MVJU

4D052489 4D052490 4D052491

12 FXMQ-M

EDUS39-600-F4 Installation

10. Installation

Center of Gravity

1. SAFETY CONSIDERATIONS Read these SAFETY CONSIDERATIONS carefully before installing air conditioning equipment, and be sure to install it correctly. After completing the installation, make sure that the unit operates properly during the start-up operation. Instruct the customer how to operate and maintain the unit.

Inform customers that they should store this Installation Man-ual with the Operation Manual for future reference.

Always use a licensed installer or contractor to install this product. Improper installation can result in water or refrigerant leakage, electrical shock, fire, or explosion.

Meanings of DANGER, WARNING, CAUTION, and NOTE symbols:

DANGER .............. Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING ............ Indicates a potentially hazardous sit-uation which, if not avoided, could result in death or serious injury.

CAUTION ............. Indicates a potentially hazardous sit-uation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices.

NOTE .................... Indicates situation that may result in equipment or property-damage accidents only.

DANGER

• Refrigerant gas is heavier than air and displaces oxy-gen. A massive leak could led to oxygen depletion, especially in basements, and an asphyxiation hazard could occur leading to serious injury or death.

• Do not install unit in an area where flammable mate-rials are present due to risk of explosion resulting in serious injury or death.

• Any abnormalities in the operation of the air condi-tioner, such as smoke or fire, could result in severe injury or death. Turn off the power and contact your dealer immediately for instructions.

• If the refrigerant gas leaks during installation, venti-late the area immediately.Refrigerant gas may produce toxic gas if it comes in contact with fire such as from a fan, heater, stove or cooking device. Exposure to this gas could cause severe injury or death.

• If equipment utilizing a burner is used in the same room as the air conditioner, there is the danger of oxygen deficiency which can lead to an asphyxiation hazard resulting in serious injury or death. Be sure to sufficiently ventilate the room to avoid this hazard.

• After completing the installation work, check that the refrigerant gas does not leak.Refrigerant gas may produce toxic gas if it comes in contact with fire from a fan, heater, stove, cooking device, or other heat source. Exposure to this gas can cause severe injury or death.

• Do not ground units to water pipes, telephone wires, or lightning rods because incomplete grounding can cause a severe shock hazard resulting in severe injury or death. Do not ground units to gas pipes because a gas leak can result in an explosion which could lead to severe injury or death.

• Safely dispose of the packing materials.• Children playing with plastic bags face the danger of

death by suffocation. Tear apart and throw away plastic packaging bags so that children cannot play with them.

WARNING

• Ask your dealer or qualified personnel to carry out installation work. Do not try to install the machine by yourself.Improper installation may result in water leakage, electric shocks or fire.

• Perform installation work in accordance with this installation manual.Improper installation may result in water leakage, electric shocks or fire.

• Be sure to use only the specified accessories and parts for installation work.Failure to use the specified parts may result in water leak-age, electric shocks, fire or the unit falling.

A BFXMQ30MVJU 28-3/8 11-3/8FXMQ36, 48MVJU 43-3/4 20-1/8

4D042517

FXMQ-M 13

Installation EDUS39-600-F4

• Install the air conditioner on a foundation strong enough to withstand the weight of the unit.A foundation of insufficient strength may result in the equip-ment falling and causing injuries.

• Carry out the specified installation work after taking into account strong winds, typhoons or earth-quakes.Improper installation work may result in the equipment fall-ing and causing accidents.

• Make sure that a separate power supply circuit is provided for this unit and that all electrical work is carried out by qualified personnel according to local laws and regulations and this installation manual.An insufficient power supply capacity or improper electrical construction may lead to electric shocks or fire.

• Make sure that all wiring is secured, the specified wires and used, and no external forces act on the ter-minal connections or wires.Improper connections or installation may result in fire.

• When wiring the power supply and connecting the remote controller wiring and transmission wiring, position the wires so that the electric parts box lid can be securely fastened.Improper positioning of the electric parts box lid may result in electric shocks, fire or the terminals overheating.

• Before touching electrical parts, turn off the unit.• Check the unit stand for damage on a continuous

basis, especially if it has been used for a long time.If left in a damaged condition, the unit may fall and cause injury.

• Do not touch the air outlet or the horizontal flaps while the swing flap is in operation as fingers may get caught and injured.

• Be sure to establish a ground.Do not ground the unit to a utility pipe, arrester, or tele-phone ground.Incomplete ground may cause electrical shock, or fire. A high surge current from lightning or other sources may cause damage to the air conditioner.

• Do not touch the switch with wet fingers. Touching a switch with wet fingers can cause electric shock.

• Be sure to install a ground leakage breaker.Failure to install a ground leakage breaker may result in electric shocks, or fire.

• Do not install the air conditioner in the following Do not install the air conditioner in the following loca-tions:(a) Where a mineral oil mist or oil spray or vapor is pro-

duced, for example, in a kitchen. Plastic parts may deteriorate and fall off or result in water leakage.

(b) Where corrosive gas, such as sulfurous acid gas, is produced.Corroding copper pipes or soldered parts may result in refrigerant leakage.

(c) Near machinery emitting electromagnetic waves Electromagnetic waves may disturb the operation of the control system and result in a malfunction of the equip-ment.

• Heat exchanger fins are sharp enough to cut.

To avoid injury wear gloves or cover the fins when working around them.

• Use of unspecified parts can result in the unit fall-ing, leaks, and even electric shock or fire.

• Entrust installation to the place of purchase or a qualified serviceman.Improper installation can lead to result in leaks and even electric shock or fire.

• Do not allow children to play on or around the unit as they could be injured.

• Placing a flower vase or other containers with water or other liquids can result in a shock hazard or fire if a spill occurs.

• Do not remove the front panel because some parts are dangerous to touch. In addition, some parts may be damaged. For checking and adjusting internal parts, contact your dealer.

• Do not put a finger or other objects into the air inlet or air outlet. The fan is rotating at high speed and injury can result. Do not let the indoor unit get wet as it may cause an electric shock or fire.

• Refrigerant pipes may be very hot or very cold dur-ing or immediately after operation.

• Touching them can result in burns or frostbite. To avoid injury give the pipes time to return to normal temperature

CAUTION

or, if you must touch them, be sure to wear proper gloves.

• While following the instructions in this installation man-ual, install drain piping in order to ensure proper drainage and insulate piping in order to prevent condensation.Improper drain piping may result in water leakage and property damage.

• Be very careful about product transportation.Some products use PP bands for packaging. Do not use any PP bands for a means of transportation. It is danger-ous.

• Safely dispose of the packing materials.Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries.

• Tear apart and throw away plastic packaging bags so that children will not play with them and risk suffocation. Do not turn off the power immediately after stopping opera-tion. Always wait at least five minutes before turning off the power or water leakage and other problems may occur.

• Take adequate measures to prevent the outdoor unit from being used as a shelter by small animals.Small animals making contact with electrical parts can cause malfunctions, smoke or fire. Please instruct the cus-tomer to keep the area around the unit clean.

NOTE

• Install the indoor and outdoor units, power supply wir-ing, and connecting wires at least 3.5 ft. away from tele-visions or radios in order to prevent image interference or noise.Depending on the radio waves, a distance of 3.5 ft. may not be sufficient to eliminate the noise.

14 FXMQ-M


• Remote controller (wireless kit) transmitting dis-tance is shorter than expected in rooms with elec-tronic fluorescent lamps Install the indoor unit as far away from fluorescent lamps as possible.

• Radio interference may result if installed too close to other electrical devices.

• Arrange the drain hose to ensure smooth drainage. Incomplete drainage may cause leaks in the building and on furniture.

• Dismantling of the unit, and treatment of the refrig-erant, oil, and other parts, should be done in accor-dance with the relevant local and national regulations.

2. BEFORE INSTALLATION• When moving the unit while removing it from the pack-

ing case, be sure to lift it by the four hanger brackets. Avoid putting any pressure on other parts especially the refrigerant piping.

• Be sure to check the type of R-410A refrigerant to be used before installing the unit as using an incorrect refrigerant will prevent normal operation of the unit.

• The accessories needed for installation must be retained in your custody until the installation work is completed. Do not discard them!

• Decide upon a line of transport.• Leave the unit inside its packaging until reaching the instal-

lation site. Where unpacking is unavoidable, use a sling of soft material or protective plates together with a rope when lifting, to avoid damage or scratches to the unit.

• When moving the unit after opening, hold the unit by the hanger brackets (× 4). Do not apply force to the refrigerant piping, drain piping or plastic parts.

• For the installation of an outdoor unit, refer to the installa-tion manual attached to the outdoor unit.

• Do not install or operate the unit in the following areas: • Kitchens or rooms that might be laden with mineral

oil, or filled with oil vapor or spray. Plastic parts may deteriorate and eventually cause the unit to fall out of place or leaks.

• Where sulfurous or other corrosive gas exists. Cop-per tubing and brazed spots may corrode and lead to refrigerant leaks.

• Where machines generate electromagnetic waves and cause the control system to malfunction.

• Where the air contains high levels of salt as near the ocean, and where voltage fluctuates greatly as in factories. Also in vehicles or vessels.

• This unit, both indoor and outdoor, is suitable for installation in a commercial and light industrial environment.If installed as a household appliance, it could cause elec-tromagnetic interference.

WARNING

• Entrust installation to the place of purchase or a qualified serviceman. Improper installation can result in leaks or even electric shock or fire.

• Use of unspecified parts could result in the unit falling, leaks, or even electric shock or fire.

NOTE

• Be sure to read this manual before installing the indoor unit.• Be sure to procure an air filter in the field and mount it in the

suction air passage to prevent water leaks or other prob-lems.

FXMQ-M 15


2-1 ACCESSORIESCheck the following accessories are included with your unit.

2-2 OPTIONAL ACCESSORIESTable 1

TAKE SPECIAL CARE DURING CONSTRUCTION AND AFTER INSTALLATION IS COMPLETED, CAREFULLY CHECK THE FOLLOWING ITEMS:

a. Items to be checked after completion of work

b. Items to be checked at time of deliveryAlso review the SAFETY CONSIDERATIONS.

2-3 NOTE TO INSTALLER• Be sure to instruct customers how to properly operate the

unit (especially cleaning filters, operating different func-tions, and adjusting the temperature) by having them carry out operations themselves while looking at the manual.

3. SELECTING INSTALLATION SITEPlease attach additional thermal insulation material to the unit body when it is believed that the relative humidity in the ceiling exceeds 80%. Use glass wool, polyethylene foam, or similar with a thickness of 3/8”. or more as thermal insulation material.

(1) Select and installation site that meets your customer’s approval and where the following conditions are fulfilled:• The upper space (including the back of the ceiling) of

the indoor unit has no possibility of dripping of water from the refrigerant pipe, drain pipe, water pipe, etc.

• Optimum air distribution can be ensured.• Nothing blocks air passage.• Condensate can be properly drained.• In the upper space (including the back of the ceiling) of

the indoor unit where there is no possible dripping of water from the refrigerant pipe, drain pipe, water pipe, etc.

• False ceiling is not noticeably on an incline.• Sufficient clearance for maintenance and service can

be ensured.• Piping between indoor and outdoor units is possible

within the allowable limit. (Refer to the installation man-ual for the outdoor unit.)

DANGER

• Do not install unit in an area where flammable materials are present due to the risk of explosion resulting in serious injury or death.

• If the supporting structural members are not strong enough to withstand the unit’s weight, the unit can fall out of place and cause serious injury.

NOTE

• Install the indoor and outdoor units, power supply wiring and connecting wires at least 3.5 feet away from televi-sions or radios in order to prevent image interference or noise.Depending on the radio waves, a distance of 3.5 feet may not be enough to eliminate the noise.

Name Metal clamp

Drain hose

Insulation for fitting Sealing pad

Quantity 1 pc. 1 pc. 1 each 1 each

Shape for gas pipe

for liquid pipe

Large

Mid

Name Clamp Screws for duct flanges

(Other)• Operation manual• Installa-tion manual• Washersfor hanger bracket(8 pcs.)

Quantity 6 pcs. As described in table below

Shape

Remote controller

Wired type BRD1C71

Items to be checked The following problems may occur If not properly done: Check

Are the indoor and outdoor unit fixed firmly?

Units may drop, vibrate, or make noise.

Is the gas leak test finished? May result in insufficient cooling.

Is the unit fully insulated? Condensate water may drip.

Does drainage flow smoothly? Condensate water may drip.

Does the power supply volt-age correspond to that shown on the name plate?

Unit may malfunction or the components burn out.

Are wiring and piping cor-rect?


Is the unit safely grounded? Danger of electrical leak-age.

Is wiring size according to specifications?


Is something blocking the air outlet or inlet of either the indoor or outdoor units?

Insufficient cooling.

Are refrigerant piping length and additional refrigerant charge noted down?

The refrigerant charge in the system is not clear.

FXMQ30MVJU

FXMQ36·48MVJU

16

28

Items to be checked Check

Did you explain about operations while showing the opera-tion manual to your customer?

Did you hand the operation manual over to your customer?

16 FXMQ-M


(2) Use suspension bolts for installation. Check to make sure the ceiling is strong enough to support the weight of the unit . If there is a risk, reinforce the ceil-ing before installing the unit.

4. PREPARATIONS BEFORE INSTALLATION(1) Relative positions of indoor unit and suspension bolt.

(Refer to Fig. 2)

(2) Install a canvas duct to the air discharge outlet and air inlet so that vibration from the machine body is not trans-mitted to the duct or ceiling.You should also apply acoustic (insulation material) to the inside of the duct, and vibration insulation rubber to the suspension bolts.

(3) Install suspension bolts.Use bolts of 3/8” diameter.• Install the equipment where supporting structures are

strong enough to bear the equipment’s weight. Use embedded inserts or anchor bolts with new buildings and hole-in-anchors with old buildings.

5. INDOOR UNIT INSTALLATIONInstalling optional accessories before installing the indoor unit is easier. Use only the provided specific accessories and parts desig-nated by Daikin AC.

(1) Fix the hanger bracket to the suspension bolt. Use wash-ers to firmly tighten both upper and lower nuts. .

(2) Adjust the height of the unit.

(3) Make sure the unit is level.• Level the unit

with a level when installing. If the unit is not level, it could become the source of water leaks.

• When leveling the unit, check all four corners with a level or a vinyl tube containing water. (See the figure on the right.)

(4) Tighten the nuts on the top.

NOTE

• Setting the unit at an angle opposite to the drain piping can cause leaks.

FXMQ30 · 36 · 48MVJU

Min. 27 9/16 (service space)

A

Min

. 17

11/1

6

Model A

Fig. 1

FXMQ30MVJU

FXMQ36MVJU48MVJU

(length: in.)

29 1/2

43 5/16


29 1/8

27 1/8

Indoor unit

Suspension bolt (× 4)

Air inlet

Inspection hatch 17 11/16

Air outlet

A B

Model A B

Fig. 2

FXMQ30MVJU

FXMQ36MVJU48MVJU

(length: in.)

26 5/16 28 5/16

41 11/16 43 11/16

Anchor

Indoor unit

Long nut or turn-buckle

Installation example

Note) All the above parts are field supplied.

Suspension bolt

Ceiling slab

Part to be procured in the field

Tighten from above and below (Double nut)

Washer (accessory)

Hanger bracket

Vinyl tube

Hanger bracket setting bolt

Level

FXMQ-M 17


6. REFRIGERANT PIPING WORK

6-1 GENERAL INSTRUCTIONS• For refrigerant piping of outdoor units, see the installation

manual attached to the outdoor unit. • Before refrigerant piping work, check which type of refrig-

erant is used. Proper operation is not possible if the types of refrigerant are not the same.

• Ensure outdoor unit is charged with refrigerant.

NOTE

• Use a pipe cutter and flare suitable for the type of refrigerant.

• To prevent dust, moisture or other foreign matter from infil-trating the tube, either pinch the end or cover it with tape.

• Do not allow anything other than the designated refrigerant to get mixed into the refrigerant circuit, such as air, etc. If any refrigerant gas leaks while working on the unit, imme-diately ventilate the room thoroughly.

6-2 Connecting the refrigerant piping• When connecting the flare nut, coat the flare both inside

and outside with ester oil or ether oil and initially tighten by hand 3 or 4 turns before tightening firmly.

• To prevent flare nut cracking and gas leaks, be sure to use both a spanner and torque wrench together, as shown in the drawing below, when connecting or disconnecting pipes to/from the unit.

• Refer to Table 2 for the dimensions of flare nut spaces.• Refer toTable 2 to determine the proper tightening torque.

Table 2

NOTE

• Apply ester oil or ether oil around the flare portions before connecting.

• The flare nuts used must be those included with the main body.

• Over-tightening may damage the flare and cause a refrig-erant leakage.

Not recommended but in case of emergencyYou should use a torque wrench but if one is unavailable, you may follow the following installation method:

After the work is finished, make sure to check that there is no gas leak.

When you keep on tightening the flare nut with a spanner, there is a point where the tightening torque suddenly increases. From that position, further tighten the flare nut using the angle shown below:

Table 3

6-3 Piping insulation• Execute heat insulation work completely on both sides of

the gas piping and the liquid piping or a water leakage may result .

• When using a heat pump, the temperature of the gas piping can reach up to approximately 250°F, so use sufficiently resistant insulation.

• Also, in cases where the temperature and humidity of the refrigerant piping sections might exceed 86°F or RH80%, reinforce the refrigerant insulation. (13/16” or thicker) Conden-sation may form on the surface of the insulating material.

• Check the pipe connector for gas leaks, then insulate it as shown in the drawing below.

• Make absolutely sure to execute heat insulation works on the pipe-connecting section after checking gas leakage by thoroughly studying the following figure and using the attached heat insulating materials for fitting. Fasten both ends with the accessory clamps.

• Wrap the accessory sealing pad only around the insulation for the joints on the gas piping side.

Pipe size

Tightening torque(ft.lbf)

Flare dimensions

A (in.)Flare shape (in.)

φ 1/4” 10.4 – 12.7 0.342-0.358

φ 3/8” 24.1 – 29.4 0.504-0.520

φ 1/2” 36.5 – 44.5 0.638-0.654

φ 5/8” 45.6 – 55.6 0.760-0.776

Ester oil or ether oil.

Torque wrench

Spanner

Piping union

Flare nut

A

45˚±

2˚ R0.016-0.031

90˚±

2˚

Pipe sizeFurther tightening

angleRecommended arm length

of tool (in.)

φ 1/4” 60 to 90 degrees Approx. 5 7/8




Midsealing pad

(accessory)Insulation for fitting (accessory)

Gas pipe

Liquid pipe

(for gas line)

Clamp (× 4)

(accessory)

18 FXMQ-M


CAUTION

• Be sure to insulate any field piping all the way to the piping connection inside the unit. Any exposed piping may cause condensation or burns if touched.

6-4 Brazing refrigerant piping• Before brazing local refrigerant piping, nitrogen gas must

be blown through the piping to expel air from the piping.If your brazing is done without nitrogen gas blowing, a large amount of oxide film develops inside the piping, and could cause system malfunction.

• When brazing the refrigerant piping, only begin brazing after having carried out nitrogen substitution or while inserting nitrogen into the refrigerant piping. Once this is done, connect the indoor unit with a flared or a flanged con-nection.

• Nitrogen should be set to 2.9psi. with a pressure-reducing valve if brazing while inserting nitrogen into the piping.

DANGER

• Use of oxygen could result in an explosion resulting in seri-ous injury or death. Only use nitrogen gas.

• Refrigerant gas may produce toxic gas if it comes in contact with fire such as from a fan heater, stove or cooking device. Exposure to this gas could cause severe injury or death.

NOTE

• Do not use flux when brazing refrigerant piping. Therefore, use the phosphor copper brazing filter metal (BCuP) which does not require flux.Flux has an extremely negative effect on refrigerant piping systems. For instance, if chlorine based flux is used, it will cause pipe corrosion. Flux containing fluorine will damage refrigerant oil.

7. DRAIN PIPING WORK Install the drain pipe as shown below and take measures against condensation. Improperly rigged piping could lead to leaks on furniture and belongings.Insulate the drain piping inside the building.

(1) Install drain piping as shown in the following figure:

• Keep piping as short as possible and slope it downward so that air cannot remain trapped inside the pipe.

• Keep pipe size equal to or greater than that of the connect-ing pipe (Vinyl pipe of 1 “ nominal diameter and 1 1/4” outer diameter).

• Use the attached drain hose and clamp.Tighten the clamp firmly.

• Insulate the metal clamp with the sealing pad.

• When the unit is running, the negative pressure inside the unit is relative to the atmospheric pressure so be sure to provide a condensate trap on the condensate outlet. (See the figure)

• In order to prevent foreign matter from building up inside the piping, avoid curves as much as possible and arrange so the trap can be cleaned.

NOTE

• If converging multiple drain pipes, install according to the procedure shown below. Install a condensate trap for each indoor unit.

Nitrogen

Refrigerant piping Part to be

brazed Taping

Pressurereducing valve

hands valve

Nitrogen

1 15

/16

or m

ore

1 15

/16

or m

ore

Bottom of unit

Attached drain hose

(length: in.)

Metal clamp

Drain hoseTape

13/16” or less

Drain hose

Large sealing pad

(accessory)

Metal clamp

(accessory)

3 15

/16”

or

mor

e

FXMQ-M 19


(2) After piping work is finished, check that drainage flows smoothly.• Add approximately 61in3 of water slowly from the air

inlet and check drainage flow.

NOTE

• Drain piping connectionsDo not connect the drain piping directly to sewage pipes that smell of ammonia. The ammonia in the sewage might enter the indoor unit through the drain pipes and corrode the heat exchanger.

8. ELECTRIC WIRING WORK

8-1 GENERAL INSTRUCTIONS • All field supplied parts, materials, and electrical works

must conform to local codes.• Use copper wire only.• For electric wiring work, refer to also “Wiring diagram label”

attached to the electric parts box lid.• For remote controller wiring details, refer to the installation

manual attached to the remote controller.• All wiring must be performed by an authorized electrician.• This system consists of multiple indoor units. Mark each

indoor unit as unit A, unit B, and so forth, and be sure the terminal board wiring to the outdoor unit and BS unit are properly matched. If controls wiring and piping between the outdoor and indoor units are mismatched, a communica-tions malfunction is likely.

• A circuit breaker capable of shutting down power supply to the entire system must be installed.

• Refer to the installation manual attached to the outdoor unit for the size of its power supply, the capacity of the circuit breaker and switch, and wiring instructions.

• Be sure to ground the air conditioner.

DANGER

• Do not ground units to water pipes, telephone wires, or lightning rods because incomplete grounding can cause a severe shock hazard resulting in severe injury or death. Do not ground units to gas pipes because a gas leak could result in an explosion which could lead to severe injury or death.

8-2 ELECTRICAL CHARACTERISTICS

MCA: Min. Circuit Amps (A); MFA: Max. Fuse Amps (A) kW: Fan Motor Rated Output (W); FLA: Full Load Amps (A)

8-3 SPECIFICATIONS FOR FIELD SUPPLIED FUSES AND WIRE

NOTE

• Allowable length of transmission wiring between indoor/outdoor units and between the indoor unit and the remote controller is as follows.

(1) Outdoor unit – Indoor unit: Max. 3280 ft. (1000 m); Total wiring length: 6560 ft. (2000 m)

(2) Indoor unit – Remote controller: Max. 1640 ft. (500 m)

9. WIRING EXAMPLE AND HOW TO SET THE REMOTE CONTROLLER

9-1 HOW TO CONNECT WIRINGS Remove the electric parts box lid and wire as shown in the fol-lowing figure: FXMQ30 - 36 - 48MVJU

UnitsPower supply

Fan motor

Model Hz VoltsVoltage range

MCA MFA W FLA

FXMQ30MVJU

60208-230

Max. 253Min. 187

1.6 15 160 1.3

FXMQ36MVJU 2.9 15 270 2.4

FXMQ48MVJU 4.4 15 430 3.5

Model

Power supply wiring

Remote controller wiring

Transmission wir-ing

Field fuses Size Wire Size

FXMQ30MVJU

15A

Wire size must com-ply with local codes.

Sheathed wire

(2 wire)

AWG18-16

FXMQ36MVJU

FXMQ48MVJU


Wiring

(Remote controller and transmission)Wire locking bracket

Clamp(accessory)

Power supply wiring

Ground wiring


(Field wiring)

(Field wiring)

(Field wiring)

Electric parts box lid

Transmission wiring

Conduit

Locknut

20 FXMQ-M


DANGER

• Use only specified wire and connect wires to terminals tightly. Be careful that wires do not place external stress on terminals. Keep wires in neat order so as to not to obstruct other equipment. Make sure that the electric parts box lid closes tightly. Incomplete connections could result in over-heating, and in worse cases, electric shock or fire.

CAUTION

• Never connect power supply wiring to the terminal block for remote controller wiring as this could damage the entire system.

• To avoid short circuits in the electric parts box, be sure to apply the sealing material or putty (not included) to the wir-ing hole to prevent the infiltration of water, insects or other small creatures.

• When clamping the wires, be sure no pressure is applied to the wire connections by using the included clamping mate-rial to make appropriate clamps. Also, when wiring, make sure the lid on the electric parts box fits snugly by arranging the wires neatly and attaching the electric parts box lid firmly. When attaching the electric parts box lid, make sure no wires get caught in the edges. Pass wiring through the wiring through holes to prevent damage to them.

• Make sure the remote controller wiring, the wiring between the units, and other electrical wiring do not pass through the same locations outside of the unit, separating them by at least 1 15/16”, otherwise electrical noise (external static) could cause mistaken operation or breakage.

NOTE

1. Use round crimp-style terminals for connecting wires to the power supply terminal block. If unavailable, observe the following points when wiring.• Do not connect wires of a different gauge to the same

power supply terminal because loosenessin the connection may cause overheating.

• Use the specified electrical wire. and connect it securely to the terminal. Lock the wire down without applying excessive force to the terminal. (Tightening torque: 0.97ft.lbf ±10 %)

2. Tightening torque for the terminal screws.• Use the correct screwdriver for tightening the terminal

screws. If the blade of screwdriver is too small, the head of the screw might be damaged, and the screw will not be properly tightened.

• If the terminal screws are tightened too hard, screws might be damaged.

• Refer to the table below for the tightening torque of the terminal screws.

3. Do not connect wires of a different gauge to the same grounding terminal because looseness in the connection may reduce protection.

4. Outside of the unit, keep transmission wiring at least 1 15/16” away from power supply wiring. The equipment may malfunction if subjected to electrical (external) noise. For remote controller wiring, refer to the INSTALLATION MANUAL OF REMOTE CONTROLLER attached to the remote controller.

X2M

X1M

T2

T1

F2

F1

P2

P1

RE

MO

TE

CN

TR

LTR

ANSM

ISSIO

NWI

RING

FO

RC

ED

OF

F

Power supply wiring, ground wiring

Power supply terminal block

Terminal block for remote controller


Field supply wire

Transmissionwiring

ConduitL1

L2

Electric wireRound crimp-style terminal

Attach insulation sleeve

Terminal SizeTightening torque

(ft.lbf)

Terminal block for remote controller (6P) M3.5 0.58 – 0.72

Power supply terminal block M4 0.87 – 1.06

FXMQ-M 21


9-2 WIRING EXAMPLE • Fit the power supply wiring of each unit with a switch and

fuse as shown in the following drawing. COMPLETE SYSTEM EXAMPLE

1. Example of 1 remote controller for 1 indoor unit dur-ing normal operation:

2. Example of group control or use with 2 remote con-trollers:

NOTE

1. A single switch can be used to supply power to units on the same system. However, branch switches and branch circuit breakers must be selected carefully.

CAUTION

2. Do not ground the equipment on gas pipes, water pipes or lightning rods, or crossground with telephones. Improper grounding could result in electric shock.

9-3 CONTROLLING ONE INDOOR UNIT BY 2 REMOTE CONTROLLERS

• Set one controller to MAIN and the other to SUB.

MAIN/SUB CHANGEOVER

(1) Insert a screw driver into the recess between the upper and lower part of remote controller and, working from the 2 positions, pry off the upper part. The remote controller PC board is attached to the upper part of remote controller.

Power supply wiringTransmission wiring

Switch

Fuse

Power supply

Mainswitch

Remote controller

Remote controller

Remote controller

Indoor unit

L1 L2 L1 L2 L1 L2 L1 L2

IN/D OUT/DF1 F2 F1 F2

Control box

L1 L2 P1 P2

P1 P2

F1 F2 T1 T2 P1 P2

P1 P2

F1 F2 T1 T2 P1 P2

P1 P2

F1 F2 T1 T2 P1 P2

P1 P2

F1 F2 T1 T2

Outdoor unit

No. 1System

Indoor unit A

Indoor unit B

Indoor unit C

MostdownstreamIndoor unit

Power supply208-230V

60Hz~


60Hz~


60Hz~


60Hz~

L1 L2 L1 L2 L1 L2

Remotecontoroller

Remotecontoroller

Remotecontoroller

Remotecontoroller

L1 L2L1 L2

Note: It is not necessary to designate indoor unit address when using group control. The address is automatically set when power is activated.

Fig. 3

P1 P2P1 P2

For use with 2 remote controllers

L1 L2IN/D OUT/D

F1 F2 F1 F2

P1 P2

P1 P2

F1 F2 T1 T2 P1 P2 F1 F2 T1 T2 P1 P2 F1 F2 T1 T2 P1 P2 F1 F2 T1 T2


60Hz~


60Hz~


60Hz~


60Hz~

No. 2System

Control box

Most downstream indoor unit

Outdoor unit

Indoor unit A Indoor unit B Indoor unit C

L1 L2

L1 L2 L1 L2 L1 L2

Remote controller

L1 L2

Upper part of remote controller

Lower part of remote controller

Insert the screwdriver here and gently work off the upper part of remote controller.

22 FXMQ-M


(2) Turn the MAIN/SUB changeover switch on one of the two remote controller PC boards to [S]. Leave the switch of the other remote controller set to “[M].

Wiring Method (See ‘‘ELECTRIC WIRING WORK’’)

(3) Remove the electric parts box lid

(4) Add remote controller 2 (slave) to the terminal block for remote controller (P1, P2) in the electric parts box. There is no polarity. (Refer to Fig. 3 and 8-3.)

9-4 COMPUTERIZED CONTROL (FORCED OFF AND ON/OFF OPERATION)

(1) Wire specifications and how to perform wiring • Connect the input from outside to terminals T1 and T2

of the terminal block for remote controller.

(2) Actuation • The following table explains FORCED OFF and ON/

OFF OPERATIONS in response to Input A. The T1-T2 terminals are standard on all Daikin indoor units and allow for remote starting and stopping of equipment. Individual indoor units can be field prgrammed at the remote controller to change the T1-T2 sequence of operation of the equipment based upon the application

(3) How to select FORCED OFF and ON/OFF OPERATION • Turn the power on and then use the remote controller to

select operation. These codes are programmed at the remote controller. Individual unit groups can be pro-grammed independently.

9-5 CENTRALIZED CONTROL • For centralized control, it is necessary to designate the

group number. For details, refer to the manual of each optional centralized controller.

10. FIELD SETTINGMake sure the terminal box lids are closed on the indoor and outdoor units.Field setting must be made from the remote controller in accordance with the installation condition.• Setting can be made by changing the MODE NO., FIRST

CODE NO., and SECOND CODE NO.• For setting and operation, refer to the FIELD SETTING in

the installation manual of the remote controller.

• Set the remote controller to the field set mode. For details, refer to the section HOW TO SET IN THE FIELD in the REMOTE CONTROLLER MANUAL.

• When in the field set mode, select the MODE NO. to [12] and set the FIRST CODE SWITCH (switch) No. to [1]. Then set the SECOND CODE NO. (position) to [01] for FORCED OFF and [02] for ON/OFF OPERATION. FORCED OFF is factory setting.

11. TEST OPERATION Refer to the installation manual of the outdoor unit.• The operation lamp of the remote controller will flash when

a malfunction occurs. Check the malfunction code on the liquid crystal display to identify the point of trouble. An explanation of all malfunction codes and the corresponding trouble is provided in can be found in the service manual. If any of the items in the following table are displayed, there

Wire specification 2-conductor, stranded, non-shielded cop-per cable / PVC or vinyl jacket

Gauge AWG 18

Length Max. 328ft.

External terminal Contact that can ensure the minimum appli-cable load of 15 V DC, 10 mA.

FORCED OFF (Manual Restart)Mode No. 12First Code No. 1Second Code No. 01DEFAULT SETTING

ON/OFF OPERA-TIONMode No. 12First Code No. 1Second Code No. 02

Only one remote controller needs to be changed if factory settings have remained untouched.

(Factory setting)S

MS

SM

Remote controller PC board

F2 T1 T2FORCEDOFF

Input A

Input A OFF (Open Circuit)

An open circuit between terminals T1 and T2 allows the unit to run normally.

Input A OFF (Open Circuit)

An open circuit between terminals T1 and T2 prevents unit operation.

Input A ON (Closed Circuit)

Closing the normally open circuit between terminals T1 and T2 stops operation of the unit. When T1-T2 is opened, the unit must be restarted with the remote controller.

.

Input A ON (Closed Circuit)

A closed circuit between terminals T1 and T2 allows nor-mal operation of the unit.

��

��

��

��

��

��

��

��

FXMQ-M 23


may be a problem with the wiring or power and you must check the wiring again.

Table

Remote control display Content

Concentrated Management is lit

• There is a short circuit at the FORCED OFF terminals (T1, T2)

U3 is lit • The check operation has not

been performed on the outdoor unit’s PCB.

U4 is lit UH is lit

• The power on the outdoor unit is off.• The outdoor unit has not been

wired for power supply.• Incorrect wiring for the trans-

mission wiring and / or FORCED OFF wiring.

No display

• The power on the indoor unit is off.• The indoor unit has not been

wired for power supply.• Incorrect wiring for the remote

controller wiring, the transmis-sion wiring and / or the FORCED OFF wiring.

24 FXMQ-M

EDUS39-600-F4 Accessories

11.Accessories

Standard Accessories

3P086156-9T

Optional Accessories (For Unit)

For Controller optional accessories, refer to Controller Manual.

TypeFXMQ30MVJU FXMQ36MVJU FXMQ48MVJU

Item

High efficiency filter65% KAFP372A80 KAFP372A160

90% KAFP373A80 KAFP373A160

Filter chamber KDDFP37A80 KDDFP37A160

Long life replacement filter KAFP371A80 KAFP371A160

C:3D042519

NameMetal clamp

Drain hose

Insulation for fitting

Sealing pad

Quantity 1 pc. 1 pc. 1 each. 1 each.

Shape for liquid pipe

for gas pipe

Large

Small

Clamp Screws for duct flanges

(Other)

• Operation manual

• Installation manual

• Washers(8 pcs.)

6 pcs. As described in table below

FXMQ30MVJU

FXMQ36·48MVJU

16

28

FXMQ-M 25

EDUS 39 - 600 - F2

AMERICAS

FXDQ-MSlim Ceiling Mounted Duct Type

1645 Wallace Drive, Suite 110Carrollton, TX75006

[email protected]

EDUS39-600-F4 Printed in U.S.A. 05/2007

AMERICAS

May 2007

ceiling mounted duct - daikin

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