Mitsubishi Heavy Industries FDC508HES3, FDC808HES3, FDC1008HES3, FDT208-A, FDT258-A User Manual

...

677

V MULTI

18. MULTI-TYPE(V MULTI) PACKAGED AIR-CONDITIONER

Split system, Air to air heat pump type

OUTDOOR UNIT

FDC508HES3

808HES3 1008HES3

INDOOR UNIT

FDT208-A FDR208-A

258-A 258-A 308-A 308-A 408-A 408-A 508-A 508-A

()

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CONTENTS

18.1 GENERAL INFORMATION ......................................................................679

18.1.1 Specific features................................................................................679

18.1.2 How to read the model name............................................................679

18.1.3 Table of models .................................................................................680

18.1.4 Table of system combinations .........................................................680

18.2. SELECTION DATA ...................................................................................681

18.2.1 Specifications ....................................................................................681

18.2.2 Range of usage & limitations ...........................................................688

18.2.3 Exterior dimensions..........................................................................690

18.2.4 Exterior appearance..........................................................................702

18.2.5 Piping system ....................................................................................703

18.2.6 Selection chart...................................................................................705

18.2.7 Characteristic of fan..........................................................................707

18.2.8 Noise level..........................................................................................709

18.3. ELECTRICAL DATA.................................................................................711

18.3.1 Electrical wiring.................................................................................711

18.4. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER............713

18.5. APPLICATION DATA................................................................................713

18.5.1 Installation of indoor unit ................................................................713

18.5.2 Installation of remote controller (Optional parts)...........................713

18.5.3 Installation of outdoor unit...............................................................713

18.6. MAINTENANCE DATA .............................................................................721

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18.1 GENERAL INFORMATION

18.1.1 Specific features

Ideal for the installation conditions characteristic of larger rooms and L-shaped or other non-standard-shaped rooms, the Multi-Type V series allows an extensive degree of flexibility in the selection of indoor units. Specifically, the selection of indoor units with differing capacities and differing or similar types is supported, as is the selection of indoor units with similar capacities and differing types. Furthermore, a maximum of up to four individual indoor units can be operated in synchrony with a single outdoor unit. (1) Simaltaneous operation possible in non-standard-shaped rooms or large-sized areas. (2) Select indoor units of differing capacities and differing or similar types; alternatively, indoor units of similar capacities and differ-

ing types. (3) Up to four individual indoor units can be connected to single outdoor unit. (4) Indoor unit.

(i) Ceiling recessed type (FDT)

(a) All air supply ports have auto swing louvers. The indoor fan motor has two speeds of high and low. (b) All models have service valves protruding from the outdoor unit for faster flare connection work in the field.

Operating noise has been remarkably reduced due to adoption of the crescent turbo fan which cuts off wind-blowing noise and also console type of cabinet which is highly effective to protect vibration.

(d) 700mm high drain head

Adoption of drain pump with high drain head and high capacity (600cc/min) has made it possible to have maximum 700 mm(from below ceiling drain head.[In case 700mm drain head is required, set it up close to the unit. It is impossible to do piping on down slope.]

(ii) Cassetteria type (FDR)

(a) Quiet sound design

(i) Noise reducing effect has been improved significantly with the employment of large silent steam fans which are

free from the wind swishing sound, and the special designing of noise shielding and acoustic suction panel.

(ii) Ideal adaptation to the need for quiet sound at conference rooms, offices, etc.

(b) 2 types of optional decorative panel

(i) Optional decorative panel consists of silent panel and a canvas duct panel. [has smaller sizes and is prepared with

canvas duct panel which provides higher drain head.]

(ii) Flexibility of installation is increased with 2 type panels.

High external static pressure type (Refer to the specification in clause 2 for the external static pressure.)

Applicable power source ... See the specifications

Heat pump type

Series No.

Nominal capacity

Model name (FDC: Outdoor unit)

Example: FDC 80 8 H ES 3

18.1.2 How to read the model name

Example: FDT 20 8- A

Series No.

Nominal capacity

Model name

FDT: Ceiling recessed type unit with

wired remote controller

FDR: Cassetteria type unit with wired

remote controller

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18.1.3 Table of models

Capacity

Model

Ceiling recessed type (FDT)

FDC508HES3 (5 Horse Power)

FDC808HES3 (8 Horse Power)

FDC1008HES3 (10 Horse Power)

Cassetteria type (FDR)

208 258 308 508408

Outdoor unit to be combined(FDC)

18.1.4 Table of system combinations

Indoor unit assembly capacity

Branch pipe set

(Optional)

258+258 DIS-WA

408+408

308+508FDC808HES3

308+308+308 DIS-TB

DIS-WB

508+508 DIS-WB

DIS-WA

2set

DIS-WB

1set

208+408+408

258+258+508 DIS-TB

Type

Twin

Outdoor unit

FDC508HES3

Triple

Twin

Double twin

Triple

FDC1008HES3

308+308+408

208+208+208+208

DIS-WA

2set

DIS-WB

1set

Double twin

258+258+258+258

Notes (1) It is possible to used different models (FDT, FDR) when combining indoor units.

(2) Always use the branch piping set (optional) at branches in the refrigerant piping.

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Item Nominal cooling capacity

(

W W

CMM

23(Unit:18 Panel:5)

25 1

Hi: 16 Lo: 11Hi: 14 Lo: 10

dB(A)

Unit:215 700 700

Panel:26 800 800

Nominal heating capacity

(

Power source

Net weight

Refrigerant control

Starting method

Fresh air intake

Air filter, Q'ty

Shock & vibration absorber

Room temperature control

Connecting method

Drain hose

Insulation for piping

Accessories Optional parts

Motor

Air flow(Standard)

Exterior dimensions Height Width Depth

Refrigerant equipment Heat exchanger

Internal thermostat for fan motor.

Frost protection thermostat

Air handling equipment Fan type & Q'ty

Operation control Operation switch

Installation data Refrigerant piping size

Noise level

Model

FDT208-A

5000 5400

FDT258-A

5700 6100

1 Phase 220/240V 50Hz

Capillary tube

Line starting

Available

Long life filter 1(Washable)

Rubber sleeve(for fan motor)

Flare piping

Connectable with VP25

Necessary (both Liquid & Gas line)

Mounting kit, Drain hose

Decorative Panel

Thermostat by electronics

Turbo fan 1

mm(in)

Safety equipment

Remote control switch (Optional:RCD-H-S-E)

Hi: 38 Lo: 33

Louver fine & inner grooved tubing

30 1

30(Unit:24 Panel:6)

Unit:260 840 840

Panel:30 950 950

Hi: 39 Lo: 35

Liquid line: 6.35 (1/4")

Gas line: 15.88 (5/8")

Liquid line: 9.52 (3/8")

Gas line: 15.88 (5/8")

(1) The data are measured at the following conditions.Notes

(2) This packaged air-conditioner is manufactured and tested in conformity with the following standard.

JIS B8616"UNITARY AIR-CONDITIONERS"

Decorative Panel model (Optional)

Item

Indoor air temperature Outdoor air temperature

Standards

ISO-T1,JIS B8616

Operation

Model

FDT208-A T-PSA-22W-E

FDT258-A T-PSA-32W-E

Panel Part No.

DB WB DB WB

Cooling 27

Heating

19 35

18.2 SELECTION DATA

18.2.1 Specifications

(1) Indoor unit

(a) Ceiling recessed type (FDT)

Models FDT208-A, 258-A

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Item Nominal cooling capacity

(

W W

CMM

34(Unit:28 Panel:6)30(Unit:24 Panel:6) 36(Unit:30 Panel:6)

80 1

Hi: 17 Lo: 12 Hi: 26 Lo: 19 Hi: 28 Lo: 20

130 1

dB(A)

Nominal heating capacity

(

Power source

Net weight

Refrigerant control

Starting method

Fresh air intake

Air filter, Q'ty

Shock & vibration absorber

Room temperature control

Connecting method

Drain hose

Insulation for piping

Accessories Optional parts

Motor

Air flow(Standard)

Exterior dimensions Height Width Depth

Refrigerant equipment Heat exchanger

Internal thermostat for fan motor.

Frost protection thermostat

Air handling equipment Fan type & Q'ty

Operation control Operation switch

Installation data Refrigerant piping size

Noise level

Model

FDT308-A

7100

FDT408-A

10000

FDT508-A

12500

8000 11200

1 Phase 220/240V 50Hz

Capillary tube

Line starting

Available

Long life filter 1(Washable)

Rubber sleeve(for fan motor)

Flare piping

Connectable with VP25

Necessary (both Liquid & Gas lines)

Mounting kit, Drain hose

Decorative Panel

Thermostat by electronics

Turbo fan 1

Liquid line: 9.52 (3/8")

Gas line: 15.88 (5/8")

Liquid line: 9.52 (3/8")

Gas line: 19.05 (3/4")

mm(in)

Safety equipment

Remote control switch (Optional:RCD-H-S-E)

Hi: 41 Lo: 35 Hi: 48 Lo: 40

Louver fine & inner grooved tubing

Hi: 49 Lo: 43

14000

30 1

(1) The data are measured at the following conditions.Notes

(2) This packaged air-conditioner is manufactured and tested in conformity with the following standard.

JIS B8616"UNITARY AIR-CONDITIONERS"

Decorative Panel model (Optional)

Item

Indoor air temperature Outdoor air temperature

Standards

ISO-T1,JIS B8616

Operation

Model

FDT308-A, 408-A, 508-A T-PSA-32W-E

Panel Part No.

DB WB DB WB

Cooling 27

Heating

19 35

Unit:320 840 840 Panel:30 950 950

Unit:260 840 840 Panel:30 950 950

Models FDT308-A, 408-A, 508-A

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Item

Nominal cooling capacity

(

Panel model (Option)

Decorative panel Silent panel

R-PNLS-26W-E R-PNLC-26W-E R-PNLS-36W-E R-PNLC-36W-E

Canvas panel Canvas panelSilent panel

W W

CMM

(mmAq)

Standard:50(5), High:85(8.5) Standard:45(4.5), High:80(8.0)

Unit:30

Panel:7

Unit:30

Panel:5

Unit:35 Panel:8

Unit:35 Panel:6

55 1

Hi: 14 Lo: 11 Hi: 18 Lo: 14

90 1

dB(A)

Unit:355 750 635 Panel:10 1040 750

Nominal heating capacity

(

Power source

Net weight

Refrigerant control

Starting method

Fresh air intake

Air filter Q'ty

Shock & vibration absorber

Room temperature control

Connecting method

Drain hose

Insulation for piping

Accessories Optional parts

Motor

Air flow(Standard)

Exterior dimensions Height Width Depth

Refrigerant equipment Heat exchanger

Internal thermostat for fan motor.

Frost protection thermostat

Air handling equipment Fan type & Q'ty

Available static pressure

Operation control Operation switch

Installation data Refrigerant piping size

Noise level

Model

FDR208-A

5000

FDR258-A

5700

5400

1 Phase 220/240V 50Hz

Capillary tube

Line starting

Available

Polypropylene net 2(Washable)

Rubber sleeve(for fan motor)

Flare piping

Connectable with VP25

Necessary (both Liquid & Gas lines)

Mounting kit, Drain hose

Silent panel, Canvas panel, Canvas duct

Thermostat by electronics

mm(in)

Safety equipment

Remote control switch (Optional:RCD-H-E)

Hi: 43 Lo: 37 Hi: 44 Lo: 38 Hi: 43 Lo: 37 Hi: 44 Lo: 38

Louver fins & inner grooved tubing

6100

Unit:(299+α) 750 635 Panel:10 864 585

Unit:(299+α) 950 635 Panel:10 1064 585

Unit:355 950 635 Panel:10 1240 750

Liquid line: 6.35 (1/4")

Gas line: 15.88 (5/8")

Liquid line: 9.52 (3/8")

Gas line: 15.88 (5/8")

(1)The data are measured at the following conditions.Notes

(2)This packaged air-conditioner is manufactured and tested in conformity with the following standard.

JIS B8616"UNITARY AIR-CONDITIONERS"

(3)Canvas panel is used in combination with following canvas duct Canvas duct: HA01503

(4)Add the canvas duct lenght to the unit height for the canvas type.

Item

Indoor air temperature Outdoor air temperature

Standards

ISO-T1,JIS B8616

Operation

DB WB DB WB

Cooling 27

Heating

19 35

Multiblade centrifugal fan 2

(b) Cassetteria type (FDR)

Models FDR208-A, 258-A

684

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Item

Nominal cooling capacity

(

Panel model (Option)

Decorative panel Silent panel

R-PNLS-36W-E R-PNLC-36W-E R-PNLS-46W-E R-PNLC-46W-E

Canvas panel Canvas panelSilent panel

W W

CMM

(mmAq)

Standard:45(4.5), High:80(8.0) Standard:50(5.0), High:80(8.0)

Unit:35

Panel:8

Unit:35

Panel:6

Unit:50 Panel:9

Unit:50 Panel:7

Hi: 20 Lo: 15 Hi: 28 Lo: 22

100 1

dB(A)

Unit:355 950 635 Panel:10 1240 750

Nominal heating capacity

(

Power source

Net weight

Refrigerant control

Starting method

Fresh air intake

Air filter Q'ty

Shock & vibration absorber

Room temperature control

Connecting method

Drain hose

Insulation for piping

Accessories Optional parts

Motor

Air flow(Standard)

Exterior dimensions Height Width Depth

Refrigerant equipment Heat exchanger

Internal thermostat for fan motor.

Frost protection thermostat

Air handling equipment Fan type & Q'ty

Available static pressure

Operation control Operation switch

Installation data Refrigerant piping size

Noise level

Model

FDR308-A

7100

FDR408-A

10000

8000

1 Phase 220/240V 50Hz

Capillary tube

Line starting

Available

Polypropylene net 3(Washable)

Rubber sleeve(for fan motor)

Flare piping

Connectable with VP25

Necessary (both Liquid & Gas lines)

Mounting kit, Drain hose

Silent panel, Canvas panel, Canvas duct

Thermostat by electronics

Liquid line: 9.52 (3/8")

Gas line: 15.88 (5/8")

mm(in)

Safety equipment

Remote control switch (Optional:RCD-H-E)

Hi: 44 Lo: 38 Hi: 45 Lo: 39 Hi:45 Lo: 38 Hi: 46 Lo: 39

Louver fins & inner grooved tubing

11200

Unit:(299+α) 950 635 Panel:10 1064 585

Unit:(350+α) 1370 635 Panel:10 1484 585

Unit:406 1370 635 Panel:10 1660 750

Polypropylene net 2(Washable)

Liquid line: 9.52 (3/8")

Gas line: 19.05 (3/4")

(1)The data are measured at the following conditions.Notes

(2)This packaged air-conditioner is manufactured and tested in conformity with the following standard.

JIS B8616"UNITARY AIR-CONDITIONERS"

(3)Canvas panel is used in combination with following canvas duct Canvas duct: HA01503

(4)Add the canvas duct lenght to the unit height for the canvas type.

Item

Indoor air temperature Outdoor air temperature

Standards

ISO-T1,JIS B8616

Operation

DB WB DB WB

Cooling 27

Heating

19 35

Multiblade centrifugal fan 2

45 1+90 1

Multiblade centrifugal fan 3

Models FDR308-A, 408-A

685

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Item

Nominal cooling capacity

(

Panel model (Option)

Decorative panel Silent panel

R-PNLS-46W-E R-PNLC-46W-E

Canvas panel

W W

CMM

(mmAq)

Standard:50(5.0), Hi speed:80(8.0)

Unit:52 Panel:9

Unit:52 Panel:7

Hi: 34 Lo: 27

50 1+100 1

dB(A)

Unit:406 1370 635 Panel:10 1660 750

Nominal heating capacity

(

Power source

Net weight

Refrigerant control

Starting method

Fresh air intake

Air filter Q'ty

Shock & vibration absorber

Room temperature control

Connecting method

Drain hose

Insulation for piping

Accessories Optional parts

Motor

Air flow(Standard)

Exterior dimensions Height Width Depth

Refrigerant equipment Heat exchanger

Internal thermostat for fan motor.

Frost protection thermostat

Air handling equipment Fan type & Q'ty

Available static pressure

Operation control Operation switch

Installation data Refrigerant piping size

Noise level

Model

FDR508-A

12500 14000

1 Phase 220/240V 50Hz

Capillary tube

Line starting

Available

Polypropylene net 3(Washable)

Rubber sleeve(for fan motor)

Flare piping

Connectable with VP25

Necessary (both Liquid & Gas lines)

Mounting kit, Drain hose

Silent panel, Canvas panel, Canvas duct

Thermostat by electronics

mm(in)

Safety equipment

Remote control switch (Optional:RCD-H-E)

Hi: 46 Lo: 39 Hi: 47 Lo: 40

Louver fins & inner grooved tubing

Unit:(350+α) 1370 635 Panel:10 1484 585

(1)The data are measured at the following conditions.Notes

(2)This packaged air-conditioner is manufactured and tested in conformity with the following standard.

JIS B8616"UNITARY AIR-CONDITIONERS"

(3)Canvas panel is used in combination with following canvas duct

Canvas duct: HA01484

(4)Add the canvas duct lenght to the unit height for the canvas type.

Item

Indoor air temperature Outdoor air temperature

Standards

ISO-T1,JIS B8616

Operation

DB WB DB WB

Cooling 27

Heating

19 35

Multiblade centrifugal fan 3

Liquid line: 9.52 (3/8"), Gas line: 19.05 (3/4")

Model FDR508-A

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Item

W W

GU-A5570ES41 1

CB125 1CB90 1

101

dB(A)

CMM 110 180

mm(in)

Model

FDC1008HES3FDC808HES3

25000

FDC508HES3

12500 14000

20000 21200

3 Phase 380/415V 50Hz

Line starting

Flare piping Liquid line: Flare piping Gas line: Brazing

Hole for drain( 20 8pcs, 50 1pcs)

Necessary (both Liquid & Gas lines)

5855

28000

195185

3.8 (BARREL FREEZE 32SAM)4.4 (BARREL FREEZE 32SAM)1.6 (BARREL FREEZE 32SAM)

1.9(Pre-charged up to

the piping length of 5m)

5.33(Pre-charged up to

the piping length of 5m)

7.6(Pre-charged up to

the piping length of 5m)

3.75

R22

9.0

1250 920 340

1450 1350 600

Nominal cooling capacity

(

Power source

Nominal heating capacity

(

Net weight

Crankcase heater

Heat exchanger

Refrigerant control

Refrigerant

Quantity

Refrigerant oil

Defrost control

Starting method

Exterior dimensions Height Width Depth

Refrigerant equipment compressor type & Q’ ty

Noise level

Motor

(1) The cooling and heating capabilities imply the values when the indoor unit of rated capacity is connected under the condition specified in JIS-B8616. (2) The refrigerant quantity in the connecting pipe is not included Charge it additionally at the site.

Notes

Air handling equipment Fan type & Q’ty

Motor

Starting method

Air flow(Standard)

Shock & vibration absorber Rubber mount (for compressor)

Internal thermostat for fan motor.

Thermistor for discharge temperature.

Internal thermostat for fan motor.

High pressure protection switch

Safety equipment

Connecting method

Drain

Insulation for piping

Accessories

Installation data Refrigerant piping size

Capillary tube

IC controlled De-Icer

Slitted fines & bare tubing

Propeller fan 2

65 2 100 2

Liquid line: 9.52 (3/8")

Gas line: 19.05 (3/4")

Hole for drain( 20 3pcs)

Liquid line: 15.88 (5/8")

Gas line: 28.58 (11/8")

Liquid line: 12.7 (1/2")

Gas line: 25.4 (1")

6.5

(2) Outdoor unit

Models FDC508HES3, 808HES3, 1008HES3

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Since the operation characteristics of series Multi depend on combination of indoor unit, calculate the total operation characteristics of the system by using the formulas below according to specifications of each indoor unit or outdoor unit.

1)Total power input

Total power input (kW) = Power input of outdoor unit + ∑ (Power input of indoor unit)

2)Total running current

Total running current (A) = Running current of outdoor unit + [∑ (Running current of indoor unit) × 2/3]

3)Total power factor

Total power factor (%) = [Total power input (W) / √—3 × Total running current (A) × Power source] × 100 Total operation characteristics = Operation characteristic value of outdoor unit + Operation characteristic value of indoor unit [Example]

(3) Operation chart

The Multi series is a system that allows for different models and capacities of indoor units to be combined so the individual

operating characteristics of the indoor and outdoor are provided. Use the procedure shown in Item (c) to calculate the combined

operating characteristics.

(a) Operating characteristic of outdoor unit

Cooling input Heating input Cooling running current Heating running current Inrush current (L.R.A) Cooling power factor Heating power factor

(380 V/415 V)

Item

Model

FDC508HES3

5.03/5.28

4.58/4.71

8.6/9.4

8.1/9.0 74

89/78 86/73

8.44/8.54

6.44/6.64

14.2/13.5

11.6/11.2 99

90/88 84/82

11.92/12.02

9.72/9.92

20.0/19.0

16.5/16.0 154

91/88 90/86

FDC808HES3 FDC1008HES3

Note (1) This packaged air-conditioner is manufactured and tested in conformity with the following standard.

JIS B8616 “UNITARY AIR-CONDITIONERS”

(b) Operating characteristic of indoor unit

Item

Model FDT Series

FDT Series

(220 V/240 V)

Power input (kW) Running current (A)

0.10/0.11

0.5/0.5

0.11/0.12

0.6/0.6

0.21/0.21

1.2/1.2

0.27/0.27

1.4/1.4

208-A 258-A 308-A 408-A 508-A

Item

Model FDR Series

FDR Series

(220 V/240 V)

Power input (kW) Running current (A)

0.11/0.120.10/0.11

0.5/0.5

0.15/0.16

0.7/0.7

0.19/0.19

0.9/0.9

0.24/0.24

1.2/1.2

208-A 258-A 308-A 408-A 508-A

Notes (1) This packaged air-conditioner is manufactured and tested in conformity with the following standard.

JIS B8616 “UNITARY AIR-CONDITIONERS”

(2) The values shown in the above table are common to both cooling and heating operations.

(Conditions) Operation Voltage ········Indoor unit: 220 V, 50 Hz

Outdoor unit: 380 V, 50 Hz

Operation mode ···········Cooling and Heating Unit·······························Outdoor unit: FDC808HES3 × 1 unit

Indoor unit: FDT308-A × 1 units, FDT508-A × 1 units

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1 Total power input (kW)

(Cooling) 8.44 + 0.11+ 0.27 = 8.82 (kW) (Heating) 6.44 + 0.11+ 0.27 = 6.82 (kW)

2 Total running current (A)

(Cooling) 14.2 + (0.6+1.4 ×

) 15.5 (A)

(Heating) 11.6 + (0.6 + 1.4 ×

) 12.9 (A)

3 Total power factor (%)

8.82 × 1000

(Cooling)

√—3 × 15.5 × 380

× 100 86 %

6.82 × 1000

(Heating)

√—3 × 12.9 × 380

× 100 80 %

Item

Model

FDC808HES3 FDT308-A FDT508-A

Operation characteristics of each unit

(Cooling/Heating)

Power input (kW) Running current (A)

8.44/6.44

14.2/11.6

0.11/0.11

0.6/0.6

0.27/0.27

1.4/1.4

Models All models

18.2.2 Range of usage & limitations

Refer to the following

Model

Item Indoor return air temperature

(Upper, lower limits) Outdoor air temperature

(Upper, lower limits) Indoor unit atmosphere (behind ceiling)

temperature and humidity

Refrigerant line (one way) length

Vertical height difference between outdoor unit and indoor unit

Power source voltage

Voltage at starting

Frequency of ON-OFF cycle

ON and OFF interval

Dew point temperature: 28˚C or less, relative humidity: 80% or less

Refer to the selection chart

Max. 10 times/h

Max. 3 minutes

Min. 85% of rating

Rating ± 10%

All models

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Height and length restrictions for refrigerant piping

(Twin type) (Triple type)

Indoor unit

Outdoor unit Indoor unitOutdoor unit

Indoor unitOutdoor unit

rArA

rB rC

Outdoor unit

(Double-twin type)

Models FDC508HES3

Models FDC808, 1008HES3

In the illustration the L is main piping and ra, andrb are branch piping.

In the illustration the L is main piping and ra,rb,rc, andrd are branch piping.

(1) When the capacity of the indoor unit to be connected is 208 or less, be sure to use a pipe diameter of ø9.52 for the

size of the liquid piping of branch piping (between branch and indoor units). (for twin, triple, and double-twin only) For connections to indoor units (liquid piping side dia. ø6.35) use the different diameter adapter coupling that is included in the branch piping kit.

(2) For the branch be sure to select the specified branch pipe set (sold separately) and then to follow the directions of

the instruction manual included in the branch pipe set when installing the piping. Be sure to install the branch piping so that the branch is level.

• One-way pipe length (m) L + ra 50, L+rb 50, L+rc 50, L+rd 50

• Branch pipe length (m) lra – rbl 10, lra – rcl 10, lrb – rcl 10

lra – rdl 10, lrb – rdl 10, lrc – rdl 10

ra 30, rb 30, rc 30, rd 30 rA +rB 15, rC +rD 15

• Vertical height difference between outdoor unit and indoor unit Outdoor unit is higher Max. 30m Outdoor unit is lower Max. 15m

• Difference in higher between indoor units Max. 4m

Request

(1) For the branch be sure to select the specified branch pipe set (sold separately) and then to follow the directions

of the instruction manual included in the branch pipe set when installing the piping. Be sure to install the branch piping so that the branch is level.

Request

• One-way pipe length (m) L +ra +rb 50

• Branch pipe length (m) lra – rbl 10, ra 30, rb 30

• Vertical height difference between outdoor unit and indoor unit Outdoor unit is higher Max. 30m Outdoor unit is lower Max. 15m

• Difference in higher between indoor units Max. 1m

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18.2.3 Exterior dimensions

(1) Indoor unit

(a) Ceiling recessed type (FDT)

Model FDT208-A

B→

→

Gas piping φ15.88(5/8")

Exhaust air opening for ducting

Fresh air opening for ducting

Air outlet grille

Air inlet grille

(Suspension bolts pitch)

(Suspension bolts

pitch)

(Ceiling hole size)

Drain hose(Accessories)

(Connectable with VP25)

Space for installation and service

Holes for tapping screws

Hole for wiring

Control box

Lug for Suspension bolts

Liquid piping φ6.35(1/4")

(Max. Drain up)

Obstacle

Suspension bolts (M10 or M8)

295 ~ 325

700 or more

570

359

430

264 304300

515

800

700

161

or more

215

141

295

336

1000

or more

110

70 140

37100

120

740

680

4-φ4

VIEW A

VIEW B

VIEW D

VIEW C

1000

or more

4-φ4

Unit : mm

Decorative Panel

+ 32 hidden pages

Mitsubishi Heavy Industries FDC508HES3, FDC808HES3, FDC1008HES3, FDT208-A, FDT258-A User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual