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
()
677
V MULTI
678
V MULTI
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
679
V MULTI
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.
(c) Low sound level
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.
(c) External static pressure
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
680
V MULTI
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
º
2set
DIS-WB
º
1set
208+408+408
258+258+508 DIS-TB
Type
Twin
Outdoor unit
FDC508HES3
Triple
Twin
Twin
Double twin
Triple
FDC1008HES3
308+308+408
208+208+208+208
DIS-WA
º
2set
DIS-WB
º
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.
681
V MULTI
Item
Nominal cooling capacity
(
1)
W
W
W
CMM
23(Unit:18 Panel:5)
25 1
Hi: 16 Lo: 11Hi: 14 Lo: 10
dB(A)
mm
Unit:215 700 700
Panel:26 800 800
Nominal heating capacity
(
1)
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
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
20
19 35
7
24
6
kg
18.2 SELECTION DATA
18.2.1 Specifications
(1) Indoor unit
(a) Ceiling recessed type (FDT)
Models FDT208-A, 258-A
682
V MULTI
Item
Nominal cooling capacity
(
1)
W
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)
mm
Nominal heating capacity
(
1)
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
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
20
19 35
7
24
6
kg
Unit:320 840 840
Panel:30 950 950
Unit:260 840 840
Panel:30 950 950
Models FDT308-A, 408-A, 508-A
683
V MULTI
Item
Nominal cooling capacity
(
1)
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
W
CMM
kg
Pa
(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)
mm
Unit:355 750 635
Panel:10 1040 750
Nominal heating capacity
(
1)
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
20
19 35
7
24
6
Multiblade centrifugal fan 2
(b) Cassetteria type (FDR)
Models FDR208-A, 258-A
684
V MULTI
Item
Nominal cooling capacity
(
1)
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
W
CMM
kg
Pa
(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)
mm
Unit:355 950 635
Panel:10 1240 750
Nominal heating capacity
(
1)
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
20
19 35
7
24
6
Multiblade centrifugal fan 2
45 1+90 1
Multiblade centrifugal fan 3
Models FDR308-A, 408-A
685
V MULTI
Item
Nominal cooling capacity
(
1)
Panel model (Option)
Decorative panel Silent panel
R-PNLS-46W-E R-PNLC-46W-E
Canvas panel
W
W
W
CMM
kg
Pa
(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)
mm
Unit:406 1370 635
Panel:10 1660 750
Nominal heating capacity
(
1)
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
20
19 35
7
24
6
Multiblade centrifugal fan 3
Liquid line: 9.52 (3/8"), Gas line: 19.05 (3/4")
Model FDR508-A
686
V MULTI
Item
W
W
kg
kW
GU-A5570ES41 1
CB125 1CB90 1
101
dB(A)
W
kg
W
CMM 110 180
mm(in)
mm
Model
FDC1008HES3FDC808HES3
25000
FDC508HES3
12500
14000
20000
21200
3 Phase 380/415V 50Hz
Line starting
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)
70
3.75
R22
9.0
1250 920 340
1450 1350 600
Nominal cooling capacity
(
1)
Power source
Nominal heating capacity
(
1)
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
687
V MULTI
(c) Calculation of total operation characteristics
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
kW
A
A
%
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
688
V MULTI
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 ×
2
) 15.5 (A)
3
(Heating) 11.6 + (0.6 + 1.4 ×
2
) 12.9 (A)
3
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
689
V MULTI
Height and length restrictions for refrigerant piping
(Twin type) (Triple type)
Indoor unit
Indoor unit
Outdoor unit Indoor unitOutdoor unit
A
L
ra
rb
B
Indoor unitOutdoor unit
A
L
ra
rb
B
A
L
ra
rb
rc
B
C
A
L
ra
rArA
rb
rc
rd
rB
rC
rD
r2
r1
B
C
D
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
<
=
<
=
<
=
<
=
<
=
690
V MULTI
18.2.3 Exterior dimensions
(1) Indoor unit
(a) Ceiling recessed type (FDT)
Model FDT208-A
B→
D
→
C
→
A
→
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
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
99
49
or more
26
215
141
295
336
1000
or more
35
110
90
90
50
70 140
80
87
37100
120
740
680
4-φ4
VIEW A
VIEW B
VIEW D
VIEW C
1000
or more
4-φ4
Unit : mm
Decorative Panel
691
V MULTI
Unit : mm
Decorative Panel
VIEW A
VIEW DVIEW C
VIEW B
Space for installation and service
Liquid piping
φ9.52(3/8")
860~890
(Ceiling hole size)
267
310332
675
(Suspension bolts pitch)
637
422
420
400
780
(Suspension bolts pitch )
Fresh air
opening for ducting
Exhaust air
opening for ducting
Drain hose (Accessories)
(Connectable with VP25)
Gas piping
( φ15.88)
(M10 or M8 ×4pcs.)
B→
C
Air inlet grille
Air outlet grille
630
950
295~325
700
or less
(Max. Drain up)
210
137
187
260
30
45
or more
95
Lug for
suspension bolts
Control box
Hole for wiring
Suspension bolts
A
↑
840
1000
1000
Obstacle
or more
or more
55
25
160 33
80
113
140
Holes for
tapping screws
4-φ4
112
100
60
140
42
140
Holes for
tapping screws
6-φ4
D→
↑
Models FDT258-A, 308-A
692
V MULTI
Models FDT408-A, 508-A
Unit : mm
Decorative Panel
VIEW A
VIEW DVIEW C
VIEW B
Space for installation and service
Liquid piping
φ9.52(3/8")
860~890
(Ceiling hole size)
267
310332
675
(Suspension bolts pitch)
637
422
420
400
780
(Suspension bolts pitch )
Fresh air
opening for ducting
Exhaust air
opening for ducting
Drain hose (Accessories)
(Connectable with VP25)
Gas piping
φ19.05(3/4")
(M10 or M8 ×4pcs.)
B→
C
Air inlet grille
Air outlet grille
630
950
295~325
700
or less
(Max. Drain up)
270
137
187
320
30
45
or more
95
Lug for
suspension bolts
Control box
Hole for wiring
Suspension bolts
A
↑
840
1000
1000
Obstacle
or more
or more
55
25
160 93
80
113
140
Holes for
tapping screws
4-φ4
112
100
60
140
42
140
Holes for
tapping screws
6-φ4
D→
↑
693
V MULTI
Silent Panel (Model: R-PNLS-26W-E)
Unit : mm
VIEW C
(Locality)
Drain hose (Accessories)
284
786
(Suspension bolts pitch)
270 275
353433
980
(Ceiling hole size)
137
69
59
75
690
(Ceiling hole size)
(Suspension bolt pitch)
70
45
57
Panel center
71
45
Gas piping
φ15.88 (5/8")
Drain
(Connectable with VP25)
Liquid piping
φ6.35 (1/4")
(I.D. φ14)
Air outlet duct
Control box
405
150
Fresh air opening
(Knock out hole)
295~325
650
250
102
480
80
635
510
465
405
245
φ
200
232
(Max. Drainup)
MIN
320
355~369
40
460
185
320
750
213
163
81
Drain (Natural drainage)
Hole for
humidifier piping
(VP20)
Suspension bolts
(M10 × 4pcs.)
Hole of wiring
(I.D. φ35)
C↓
↑A
B→
VIEW B
VIEW A
Space for installation and service
4-φ 4.0
φ
170
205 213
φ
149
Holes of
tapping screws
90
φ
170
150
Fresh air opening
for ducting
(Knock out hole)
Exhaust air opening for ducting
(Knock out for ducting)
75
45
45
950
45
750
75
45
510
1040
Air inlet
Air inlet
1000
or more
100 or
more
100 or
more
50
or
more
Obstacle
545
(b) Cassetteria type (FDR)
Model FDR208-A
694
V MULTI
Canvas Panel (Model: R-PNLC-26W-E)
Unit : mm
VIEW C
VIEW B
VIEW A
Space for installation and service
Control box
90
45
804
(Ceiling hole size)
69
59
71
9
786
(Suspension bolts pitch)
9
545
(Suspension bolts pitch)
193
45
70
525
(Ceiling hole size)
352
Air outlet duct
Panel center
Drain hose (Accessories)
Liquid piping
φ6.35 (1/4")
Drain
(Connectable with VP25)
Gas piping
φ15.88 (5/8")
(Local Locality)
284
150
405
Fresh air opening
(Knock out hole)
80
φ
170
φ
170
φ
149
Holes of tapping screws
4-φ4.0
205 213
90
Exhaust air opening for ducting
150
774
45
864
45
45
75
345
585
75
45
Air inlet
Air inlet
Fresh air
opening for ducting
1000
or more
100
or
more
100
or
more
50
or
more
Obstacle
(Knock out hole)
(Knock out hole)
C↓
635
Hole for humidifier piping
(I.D.φ14)
295~325
250
Hole of
wiring
(I.D.φ35)
460
260
40
405
465
480
510
149
199
274
299
150~
300
600
35
245
Drain (Natural drainage)
(VP20)
320
750
185
φ
200
130
Canvas duct
(Optional parts)
(Max. Drain up)
Suspension bolts
(M10 × 4pcs.)
A
↑
B→
Drain
(Connectable
with VP25)
Model FDR208-A
695
V MULTI
VIEW C
Silent Panel (Model: R-PNLS-36W-E)
Unit : mm
1180
(Ceiling hole size)
986
(Suspension bolts pitch)
Panel center
Air outlet duct
(Suspension bolts pitch)
690
(Ceiling hole size)
Drain hose (Accessories)
(Locality)
533
57
453
Control box
71
45 45
545
75
70
137
284
69
59
C↓
275
270
500
150
Fresh air opening
(Knock out hole)
950
285
285
165
215
↑A
B→
232
MIN
320
650
Suspension bolts
(M10 × 4pcs.)
φ
200
Gas piping
φ15.88 (5/8")
(Max. Drain up)
295~325
80
81
102
163
213
355~369
Hole
of wiring
(I.D.φ35)
460
250
40
405
465
480
510
635
Drain (Natural drainage)
(VP20)
Hole for
humidifier piping
(I.D.φ14)
VIEW A
VIEW B
Space for installation and service
45
Holes of
tapping screws
4-φ4.0
150
φ
170
φ
170
φ
149
90
Exhaust air opening for ducting
(Knock out hole)
Fresh air opening
for ducting
(Knock out hole)
205
213
Air inlet
Air inlet
1240
1150
45
45
75
45
75
750
510
Obstacle
100
or more
100
or
more
50
or
more
1000
or
more
Liquid piping
φ9.52 (3/8")
Models FDR258-A, 308-A
696
V MULTI
Models FDR258-A, 308-A
697
V MULTI
Models FDR408-A, 508-A
1000
100 100
50
or more
or more or more
or more
Obstacle
205 213
Hole of tapping screws
175 320 320 320
295~325
235
460
Air inlet
Air inlet
80 635
510
480
465
405
155
57 743 663
137
284
69
58
495
76
1370
1600(Ceiling hole size)
690(Ceiling hole size)
Drain hose(Accessories)
(Locality)
Air outlet duct
Fresh air opening
(Knock out hole)
Drain
Gas piping
φ
19.05(3/4")
1660
750
Liquid piping
φ
9.52(3/8")
(Connectable
with VP25)
Hole for
humidifier piping
1406(Suspension bolts pictch)
(Suspension bolts pictch)
(Max.Drain up)
545
MIN276
MIN320
103
81
213
163
650
40
406~420
270 275
45
70
150
45
75
Suspension bolts
(M10 × 4 pcs.)
Drain(Natural drainage)
Fresh air opening
for ducting
(Knock out hole)
Exhaust air opening for ducting
(Knock out hole)
(VP20)
φ
149
90
φ
170
45
1570 45
φ
170
φ200
Panel center
Control box
(I.D.φ35)
(I.D.
φ
14)
Hole of
wiring
4 -
φ
4.0
150
510
75
45
45
75
A
C
B
Space for installation and service
Unit : mm
Silent Panel (Model: R-PNLS-46W-E)
VIEW A
VIEW B
VIEW C
698
V MULTI
205 213
Hole of tapping screws
175 320
130
320
Canvas duct
(Optional parts)
320
295~325
235
460
Air inlet
Air inlet
80
635
510
480
465
405
155
99
284
69
495
71
59
1370
1424(Ceiling hole size)
Drain hose(Accessories)
(Locality)
Air outlet duct
Fresh air opening
(Knock out hole)
Drain
Gas piping
φ
19.05(3/4")
1484
585
Liquid piping
φ
9.52(3/8")
(Connectable
with VP25)
Hole for
humidifier piping
1406(Suspension bolts pictch)
545
(Suspension bolts pictch)
(Max.Drain up)
600
86
200
250
325
350
40
310
45
352 193 45
70
90
150
Suspension bolts
(M10 × 4 pcs.)
Drain(Natural drainage)
Fresh air opening
for ducting
(Knock out hole)
Exhaust air opening for ducting
(Knock out hole)
(VP20)
φ
149
90
φ
170
45 45
1394
φ
170
φ200
Panel center
Control box
(I.D.φ35)
(I.D.
φ
14)
Hole of
wiring
4 -
φ
4.0
150
345
75
45
75
45
525(Ceiling hole size)
A
C
B →
150~300
Space for installation and service
1000
100 100
50
or more
or more or more
or more
Obstacle
Models FDR408-A, 508-A
Unit : mm
Canvas Panel (Model: R-PNLC-46W-E)
VIEW A
VIEW B
VIEW C
699
V MULTI
16
Remote controller mounting dimensions
47
7
Standard Within 0.3 mm
2
× Within 100 m
0.5 mm
2
× Within 200 m
0.75 mm
2
× Within 300 m
1.25 mm
2
× Within 400 m
2 mm
2
× Within 600 m
Allowable rang of wire thickness and length
♦ Usable JIS box, JIS C 8336
⋅ Switch box for 1 piece (without cover)
(use of the mark hole as illustrated on the left)
⋅ Switch box for 2 pieces
(use of the mark hole as illustrated on the left)
(without cover)
(use of the mark hole as illustrated on the left)
(when installing the cover)
Notes (1) Allowable length of remote controller
cable: 600 m
0.3mm2, 3cores (O.D.φ5.6)
LCD display
120
Wall
Wire
(Recessed)
Junction box
(Locally Purchased)
89
83.5
17
120
Remote controller outline
For the passage
after wiring
120
60
46
(2) Remote controller (Optional parts)
Unit : mm
700
V MULTI
(3) Outdoor unit
Model FDC508HES3
Required space for maintenance and air flow Minimum allowable space to the obstacles
Unit:mm
Mark
123
L1 Open Open 500
L2 300 5 Open
L3 150 300 150
L4 555
Installation
type
Notes
(1) Avoid the location where four sides are entirely
surrounded by walls.
(2) Fix the unit by anchor bolts without fail. Restrict
the protrusion length of anchor bolt to 15 mm
and under.
(3) When strong wind blows against the unit, direct
the discharge port at a right angle to the wind
direction.
(4) Secure the space of 1 m and over at the top of
unit.
(5) Make the height of obstruction wall in front of
discharge port lower than the height of unit.
VIEW A
L
2
L
3
L
4
L
1
Air
inlet
Air inlet
Air outlet
Maintenance
space
50
110
195
555
578
920
10
46
50
48
100
165
580
175
35
15
380 15
15
103
5050
50
50
110
195
50
70
50 15
50
27
50
15
47
295237
15
340
35
55
55
150
40
Gas piping:
φ
19.05 (3/4")
(Flare connecting)
Liquid piping:
φ
9.52 (3/8")
(Flare connecting)
Opening for electric wiring
Holes for drain
(
φ
20 × 3pcs.)
Opening for
electric wiring
Opening for piping
and electric wiring
Opening for piping
and electric wiring
Electric wiring
Opening for piping
and electric wiring
Holes for anchor bolt
(M10 × 4pcs.)
Gas piping:
φ
19.05 (3/4")
(Flare connecting)
Liquid piping:
φ
9.52 (3/8")
(Flare connecting)
Opening for electric wiring
Terminal block
1250
A
Unit: mm
701
V MULTI
Models FDC808HES3, 1008HES3
( )
291.5
119
1350
1450
20
50
Power supply connecting
terminal block
Connect of gas piping
Connect of liquid piping
102
29
22
157
Opening for
exit gas pipimg
Opening for
exit liquid
pipimg
(ø39)
(ø25)
105
80
170
Opening for
exit piping
Opening for
exit wiring
(ø50)
(ø88)
600
105
170
80
Opening for
exit wiring
(ø50)
Opening for
exit piping
(ø88)
1564015
250
850
250
40
157
767
81
532
135
702
283.5
567
283.5
169
395
123
Hole for drain
Downward outlet hole for
piping and wiring
(8-ø20)
Hole for drain
Anchor bolts
(ø50)
(M10 × 4pcs.)
( )
808: ø12.7 (1/2")
1008: ø15.58 (5/8")
( )
70
100
175
110
50
175
240
110
88
123
Dimentions of refrigerant piping
connecting mouth
(Front)
Opening for
exit liquid piping
Rear surface
Connect of liquid piping
(ø50)
Opening for
exit wiring
Opening for exit
gas pipimg
(ø35)
(ø65)
808: ø12.7 (1/2")
1008: ø15.88 (5/8")
Connect of
gas piping
( )
808: ø25.4 (1")
1008: ø28.58 (1 1/8")
808: ø25.4 (1")
1008: ø28.58 (1 1/8")
Wall height H
4
Wall height H
2
L
1
L
3
Wall Height H
3
Wall height H
1
( )
suction
L
4
L
2
I II III
L
1
L
2
L
3
L
4
Open
Not limited
Not limited
Not limited
Not limited
Not limited
Not limited
700 or less
Not limited
Open
300
0
Open
500
300
0
500
0
1000 or less
300
0
Unit:mm
Dimensions
Installation
example
H
1
H
2
H
3
H
4
Notes (1) Make sure to secure the unit with anchor bolts.
(2) When the strong wind blows, place the unit so that dis-
charge outlet faces the wind direction with right angle.
(3) Make sure to allow the space of 1 m or more above the
unit.
(4) Connect the refrigerant piping (both gas side and liquid
side) at local site.
(5) If the wall height H
1
, H3 of installation example III
exceeds the limited value, make sure the value of L
1
, L3
are to be as follows.
L
1
=H1 -500
L
3
= 300 + (H3-700) / 2, however, if L3 exceeds 600, there
is no limit for the wall height H
3
.
Service
space
A
Unit: mm
VIEW A
702
V MULTI
18.2.4 Exterior appearance
(1) Indoor unit
(a) Ceiling recessed type (FDT)
Models All models
Pearl white
(Decorative panel)
(2) Outdoor unit
Model FDC508HES3
Polar white
(b) Cassetteria type (FDR)
Models All models
Silent panel type
Ceramic White
Ceramic White
Canvas-duct panel type
Models FDC808HES3, 1008HES3
Polar white
Type
Item
Panel model Remarks
FDT208-A T-PSA-22W-E
Without swing
FDT258-A~508-A T-PSA-32W-E
703
V MULTI
18.2.5 Piping system
(1) Twin type
Model FDC508HES3
Models FDC808HES3,1008HES3
Thermistor
(Th
I
-R)
Thermistor
(Th
O
-D)
Thermistor
(Th
O
-R)
Solenoid
valve (SV2)
Solenoid
valve (SV1)
Thermistor
(Th
O
-A)
Thermistor
(Th
I
-A)
Heat exchanger
Heat exchanger
High pressure switch (63H
2
)
(For fan motor control)
Strainer
Strainer Strainer
StrainerCapillary
tube
Capillary tube
Capillary tube
Capillary
tube
Capillary
tube
Liquid line
(ø9.52)
Gas line
(ø19.05)
Service valve
(Flare connecting)
Service valve
(Flare connecting)
Cooling cycle
Heating cycle
4way valve
Compressor
Accumulators
Check valve
Check
joint
Check joint
Check joint
Oil separator
Subcooling
coil
Branch
pipe
(Brazing)
(ø9.52)
(ø15.88)
Strainer
Strainer
Capillary
tube
(ø9.52)
(ø15.88)
Flare connecting
Branch pipe
(Brazing)
Flare connecting
Outdoor unitIndoor unitIndoor unit
Heat
exchanger
Thermistor
Capillary tube
Liquid line
Thermistor
Cooling cycle
Heating cycle
4way valve
Muffler
Muffler
Capillary tube
Capillary tube
Accumlator
Heat
exchanger
Lower Upper
(Th
O
-A)
(Th
I
-A)
(Th
I
-R)
Thermistor
Service valve
(Brazing)
Branch
pipe
(Brazing)
Branch
pipe (Brazing)
High pressure switch(63H2)
(For fan motor control)
High pressure
switch(63H
1
)
(For protection)
Check valve
Compressor
Service valve
(Flare connecting)
Thermistor (Th
O
-R)
Only case of FDC808HES3
Thermistor (Th
O
-R)
Only case of FDC1008HES3
Strainer
Strainer
( )
( )( )
Gsa line
Flare connecting
808 : ø25.4
1008 : ø28.58
( )
808 : ø12.7
1008 : ø15.88
Strainer
Strainer
(ø9.52) (ø9.52)
308 : ø15.88
408,508 : ø19.05
308 : ø15.88
408,508 : ø19.05
Outdoor unitIndoor unitIndoor unit
Note (1) Refer to page 715 for piping size after branching.
Note (1) Refer to page 716 for piping size after branching.
704
V MULTI
(2) Triple type
Models FDC808HES3,1008HES3
Note (1) Refer to page 716 for piping size after branching.
Note (1) Refer to page 717 for piping size after branching.
Heat
exchanger
Thermistor
Capillary tube
Liquid line
Thermistor
Cooling cycle
Heating cycle
4way valve
Muffler
Muffler
Capillary tube
Capillary tube
Accumlator
Heat
exchanger
Lower Upper
(Th
O-A)
(Th
I-A)
(Th
I-R)
Thermistor
Service valve
(Brazing)
Branch
pipe
(Brazing)
Branch
pipe(Brazing)
High pressure switch(63H2)
(For fan motor control)
High pressure
switch(63H1)
(For protection)
Check valve
Compressor
Service valve
(Flare connecting)
Thermistor (Th
O-R)
Only case of FDC808HES3
Thermistor (Th
O-R)
Only case of FDC1008HES3
Strainer
Strainer
( )
208~308 : ø15.88
408, 508 : ø19.05
( )
208: ø6.35
258~508 : ø9.52
( )
208~308 : ø15.88
408, 508 : ø19.05
( )
208: ø6.35
258~508 : ø9.52
( )
Gsa line
Flare
connecting
Flare
connecting
808 : ø25.4
1008 : ø28.58
( )
808 : ø12.7
1008 : ø15.88
Strainer
Strainer
208~308 : ø15.88
408, 508 : ø19.05
( )
208: ø6.35
258~508 : ø9.52
( )
Strainer
Strainer
Outdoor unitIndoor unitIndoor unit Indoor unit
Heat
exchanger
Thermistor
Capillary tube
Thermistor
Cooling cycle
Heating cycle
4way valve
Muffler
Muffler
Capillary tube
Capillary tube
Accumlator
Heat
exchanger
Lower Upper
(Th
O
-A)
(Th
I
-A)
(Th
I
-R)
Thermistor
Service valve
(Brazing)
Branch
pipe
(Brazing)
Branch
pipe
(Brazing)
Branch
pipe (Brazing)
Secondary
branch pipe
High pressure switch(63H2)
(For fan motor control)
High pressure
switch(63H1)
(For protection)
Check valve
Compressor
Service valve
(Flare connecting)
Thermistor (Th
O
-R)
Only case of FDC808HES3
Thermistor (Th
O
-R)
Only case of FDC1008HES3
Strainer
Strainer
Flare connecting
Branch pipe
(Brazing)
First branch pipe
Strainer
Strainer
(¿15.88) (¿15.88)
(¿15.88)
Secondary
branch pipe
(¿9.52)
(¿19.05)
First branch
pipe
(¿19.05)
( )
208 : ¿6.35
258 : ¿9.52
( )
208 : ¿6.35
258 : ¿9.52
( )
208 : ¿6.35
258 : ¿9.52
( )
208 : ¿6.35
258 : ¿9.52
(¿15.88) (¿15.88)
Heat
exchanger
Thermistor
Capillary tube
Thermistor
(ThI-A)
(Th
I
-R)
Branch
pipe
(Brazing)
Branch
pipe (Brazing)
Strainer
Strainer
Flare connecting
Gsa line
808 : ¿25.4
1008 : ¿28.58
( )
Liquid line
( )
808 : ¿12.7
1008 : ¿15.88
Strainer
Strainer
Indoor unit
Indoor unit
Indoor unit Indoor unit
(3) Dauble twin type
Models FDC808HES3,1008HES3
705
V MULTI
OFF 2.5MPa (25.5 kgf/cm2) OFF 2.75MPa (28 kgf/cm2)
ON 2.06MPa (21 kgf/cm2) ON 2.16MPa (22 kgf/cm2)
ThI-R
Tho-D
Tho-R
63H2
63H1
Indoor unit
Outdoor unit
Outdoor unit
Outdoor unit
18.2.6 Selection chart
Correct the cooling and heating capacity in accordance with the conditions as follows. The net cooling and heating capacity can be
obtained in the following way.
Net capacity = Capacity shown on specifications × Correction factors as follows.
(1) Coefficient of cooling and heating capacity in relation to temperatures
Outdoor air W.B. temperature (˚CW.B.) ISO-T1 Standard condition
Indoor air W.B. temperature (˚CW.B.)
ISO-T1 Standard condition
Outdoor air D.B.
temperature (˚CD.B.)
Cooling operation
I
ndoor air D.B.
temperature (˚CD.B.)
Heating operation
Coefficient of cooling and heating capacity
in relation to temperatures
Preset point of the protective devices
Parts name Mark
Thermistor
(for protection overloading in heating)
Thermistor
(for frost prevention)
Thermistor
(for detecting discharge pipe temp.)
Thermistor
(for detecting heat
exchange temp.)
High pressure switch
(for controlling FM0)
High pressure switch
(for protection)
OFF 68˚C
ON 61˚C
Equipped
unit
FDC508HES3
OFF 2.5˚C
ON 10˚C
OFF 135˚C
ON 90˚C
OFF 70˚C
ON 60˚C
FDC808HES3, 1008HES3
OFF 2.41MPa (24.5 Kgf/cm2)
ON 1.86MPa (19.0 kgf/cm2)
706
V MULTI
Equivalent piping length
(1)
m 5 10152025303540455055
Heating 1.0 1.0 1.0 1.0 1.0 0.995 0.995 0.99 0.99 0.985 0.985
1.0 0.99 0.975 0.965 0.95 0.94 0.925 0.915 0.9 0.89 0.875
1.0 0.99 0.98 0.97 0.96 0.95 0.94 0.93 0.92 0.91 0.9
(3) Correction of cooling and heating capacity in relation to one way length of refrigerant piping
It is necessary to correct the cooling and heating capacity in relation to the one way equivalent piping length between the indoor
and outdoor units.
Note (1) Equivalent piping length can be obtained by calculating as follows.
508 series [φ19.05 (3/4″)] : Equivalent piping length = Real piping length + (0.15 × Number of bends in piping)
808 series [φ25.4 (1″)] : Equivalent piping length = Real piping length + (0.15 × Number of bends in piping)
1008 series [φ28.58 (1 1/8″)] : Equivalent piping length = Real piping length + (0.20 × Number of bends in piping)
[Equivalent piping length < Limitation length of piping + 5m]
(4) When the outdoor unit is located at a lower height than the indoor unit in cooling operation and when the
outdoor unit is located at a higher height than the indoor unit in heating operation, the following values should be
subtracted from the values in the above table.
Cooling
FDC508 type
FDC808, 1008 type
Item
Model
All models
Max. one way piping length 50m
Max. vertical height difference
Outdoor unit is higher 30m
Outdoor unit is lower 15m
Note (1) Values in the table indicate the one way piping length between the indoor and outdoor units.
Height difference between the indoor unit and
outdoor unit in the vertical height difference
5m 10m 15m 20m 25m 30m
Adjustment coefficient 0.01 0.02 0.03 0.04 0.05 0.06
Piping length limitations
How to obtain the cooling and heating capacity
Example : The net cooling capacity of the model FDC808HES3 with the air flow “High”, the piping length of 40m, the outdoor unit
located 5m lower than the indoor unit, indoor wet-bulb temperature at 19.0 ˚C and outdoor dry-bulb temperature 35 ˚C is
Net cooling capacity = 20000 × 1.00 × (0.93 - 0.01) × 1.0 = 18400 w
Factor by air
temperatures
FDC808HES3
Air flow
“High”
Length m.
Height difference 5 m
Item
Air flow
Hi 0.112 0.050 0.065 0.076 0.025
Lo 0.073 0.030 0.030 0.050 0.013
Model
208 type 258 type 308 type 408 type 508 type
(2) Correction of cooling and heating capacity in relation to air flow rate control (fan speed)
Coefficient: 1.00 at High, 0.95 at Low
Table of bypass factor
FDT series
FDR series
Item
Air flow
Hi 0.035 0.035 0.039 0.085 0.035
Lo 0.021 0.020 0.023 0.060 0.023
Model
208 type 258 type 308 type 408 type 508 type
707
V MULTI
18.2.7 Characteristics of fan
• External static pressure table
How to interpret the blower characteristics table
Example : Case of FDR308-A
1 2-spot blowout.....................
Internal resistance increases more
than the standard 3-spot blowout.
Approx. 14 (1.4) Pa (mmAq) at
17m
3
/min.
2 Square duct blowout...........
Internal resistance decreases
more than the standard round
duct (ø200 3-spot). 3 (0.3) Pa
(mmAq) at 17 m
3
/nin. (External
static pressure increases in
reverse.).
3 Decorative panel...................
When the decorative panel is not
used with the ceiling return type,
the part of internal resistance
related to the panel decrease. 3
(0.3) Pa (mmAq) at 17mm
3
/min.
Model FDR258-A
Unit: Pa (mmAq)
FDR208-A
FDR258-A
FDR308-A
FDR408-A
FDR508-A
Type
Air flow
(m
3
/min)
Duct specs.
1 spot closing
(1)
Standard
(2)
Square duct
(3)
Stan-
dard
High
speed
(4)
High
speed
(4)
High
speed
(4)
Stan-
dard
Stan-
dard
14
18
20
28
34
—
30(3)
25(2.5)
40(4)
40(4)
—
65(6.5)
60(6)
70(7)
70(7)
50(5)
45(4.5)
45(4.5)
50(5)
50(5)
85(8.5)
80(8)
80(8)
80(8)
80(8)
50(5)
50(5)
50(5)
50(5)
55(5.5)
90(9)
85(8.5)
85(8.5)
85(8.5)
85(8.5)
Notes (1) 1 spot closing: Round duct flange at center is removed and shield
with a decorative panel (option).
(2) Standard: ø200 ducts are installed at all blowout holes.
(3) Square duct: All round ducts are removed and replaced with special
square duct flanges (option).
(4) When operating at a high speed, invert the connection of white
and red connectors on the flank of control box.
[Standard]3-spot blower
internal resistance
Internal resistance without suction panel
Internal resistance without filter
Square duct blower internal resistance
2-spots blower
internal resistance
•
High
Standard
•
Low
14
40(4)
20(2)
0(0)
–2(–2)
17 20 22
Air flow (m3/min)
Static pressure Pa (mmAq)
Internal resistance without suction panel
Internal resistance without filter
Square duct blower internal resistance
[Standard] 2-spot blower internal resistance
High speed
•
High
High speed
•
Upper limit
High speed
•
Lower limit
High speed
•
Low
Standard
•
Upper limit
Standard
•
Low
Standard
•
High
Static pressure Pa (mmAq)
Lower
limit
Upper
limit
Air flow (m3/min)
10
–20(–2)
0(0)
20(2)
40(4)
60(6)
80(8)
100(10)
120(12)
12 14 15.5
Internal resistance without suction panel
Internal resistance without filter
Square duct blower internal resistance
[Standard] 3-spot blower internal resistance
2-spot blower internal resistance
High speed
•
High
High speed
•
Upper limit
High speed
•
Lower limit
High speed
•
Low
Standard
•
Upper limit
Standard
•
Low
Standard
•
High
Static pressure Pa (mmAq)
Lower
limit
Upper
limit
Air flow (m3/min)
13
–20(–2)
0(0)
20(2)
40(4)
60(6)
80(8)
100(10)
120(12)
14 16 18 20
Model FDR208-A
708
V MULTI
Model FDR308-A Model FDR408-A
Internal resistance without suction panel
Internal resistance without filter
Square duct blower internal resistance
[Standard]
3-spot blower internal resistance
2-spot blower
internal resistance
High speed
•
High
High speed
•
Upper limit
High speed
•
Lower limit
High speed
•
Low
Standard
•
Upper limit
Standard
•
Low
Standard
•
High
Static pressure Pa (mmAq)
Lower
limit
Upper
limit
Air flow (m3/min)
14
–20(–2)
0(0)
20(2)
40(4)
60(6)
80(8)
100(10)
120(12)
17 20 22
Model FDR508-A
Internal resistance without suction panel
Internal resistance without filter
Square duct blower internal resistance
4-spot blower internal resistance [Standard]
3-spot blower
internal resistance
High speed
•
High
High speed
•
Upper limit
High speed
•
Lower limit
High speed
•
Low
Standard
•
Upper limit
Standard
•
Low
Static pressure Pa (mmAq)
Lower
limit
Upper
limit
Air flow (m3/min)
24
–20(–2)
0(0)
20(2)
40(4)
60(6)
80(8)
100(10)
120(12)
3026 34 38
Internal resistance without suction panel
Internal resistance without filter
Square duct blower
internal resistance
[Standard] 4-spot blower internal resistance
3-spot blower internal resistance
High speed
•
High
High speed
•
Upper limit
High speed
•
Lower limit
H
igh speed
•
Low
Standard
•
Upper limit
Standard
•
Low
Standard
•
High
Static pressure Pa (mmAq)
Lower
limit
Upper
limit
Air flow (m3/min)
21
–20(–2)
0(0)
20(2)
40(4)
60(6)
80(8)
100(10)
120(12)
2522 28 31
709
V MULTI
18.2.8 Noise level
Notes (1) The data are based on the following conditions.
Ambient air temperature:
Indoor unit 27˚C DB, 19˚C WB.
Outdoor unit 35˚C DB.
Indoor unit
Measured based on JIS B 8616
Mike position as below
(2) The data in the chart are measured in an unechonic room.
(3) The noise levels measured in the field are usually higher than the data because of reflection.
Outdoor unit
Only case of FDC508
Measured based on JIS B 8616
Mike position: at highest noise level
in position as below
Distance from front side 1 m
Height 1 m
Only case of FDC808, 1008
Mike position: front height is 1 meter.
Model FDT208-A
Noise level 38 dB (A) at HIGH
33 dB (A) at LOW
Model FDT258-A
Noise level 39 dB (A) at HIGH
35 dB (A) at LOW
Model FDT408-A
Noise level 48 dB (A) at HIGH
40 dB (A) at LOW
Model FDT508-A
Noise level 49 dB (A) at HIGH
43 dB (A) at LOW
Mike (center & low points)
Mid octave band frequency (Hz)
N30
N20
N
50
N
60
N70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N40
Sound pressure level
(Standard 0.0002µ bar) dB
Mid octave band frequency (Hz)
N30
N20
N
50
N
60
N70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N
40
Sound pressure level
(Standard 0.0002µ bar) dB
Mid octave band frequency (Hz)
N
30
N20
N50
N
60
N
70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N
40
Sound pressure level
(Standard 0.0002µ bar) dB
Mid octave band frequency (Hz)
N30
N20
N50
N
60
N
70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N40
Sound pressure level
(Standard 0.0002µ bar) dB
Mid octave band frequency (Hz)
N30
N20
N
50
N
60
N70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N
40
Sound pressure level
(Standard 0.0002µ bar) dB
Unit Unit
Silent panel Canvas panel
1.5m
1.5m
Model FDR208-A
Noise level 43 dB (A) at HIGH
37 dB (A) at LOW
Model FDR258-A
Noise level 43 dB (A) at HIGH
37 dB (A) at LOW
Model FDR308-A
Noise level 44 dB (A) at HIGH
38 dB (A) at LOW
Mid octave band frequency (Hz)
N
30
N20
N50
N60
N
70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N
40
Sound pressure level
(Standard 0.0002µ bar) dB
Mid octave band frequency (Hz)
N
30
N20
N
50
N
60
N
70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N
40
Sound pressure level
(Standard 0.0002µ bar) dB
Mid octave band frequency (Hz)
N30
N20
N50
N60
N
70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N40
Sound pressure level
(Standard 0.0002µ bar) dB
(b) Cassetteria type (FDR)
1) Silent panel
FDT series
FDR series
Model FDT308-A
Noise level 41 dB (A) at HIGH
35 dB (A) at LOW
(1) Indoor unit
(a) Ceiling recessed type (FDT)
710
V MULTI
2) Canvas panel
Model FDR408-A
Noise level 45 dB (A) at HIGH
38 dB (A) at LOW
Model FDR508-A
Noise level 46 dB (A) at HIGH
39 dB (A) at LOW
Mid octave band frequency (Hz)
N
30
N20
N
50
N
60
N
70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N
40
Sound pressure level
(Standard 0.0002µ bar) dB
Mid octave band frequency (Hz)
N
30
N20
N
50
N
60
N
70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N
40
Sound pressure level
(Standard 0.0002µ bar) dB
Model FDR208-A
Noise level 44 dB (A) at HIGH
38 dB (A) at LOW
Model FDR258-A
Noise level 44 dB (A) at HIGH
38 dB (A) at LOW
Model FDR308-A
Noise level 45 dB (A) at HIGH
39 dB (A) at LOW
Mid octave band frequency (Hz)
N
30
N20
N
50
N
60
N
70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N
40
Sound pressure level
(Standard 0.0002µ bar) dB
Mid octave band frequency (Hz)
N
30
N20
N
50
N
60
N
70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N
40
Sound pressure level
(Standard 0.0002µ bar) dB
Mid octave band frequency (Hz)
N
30
N20
N50
N
60
N70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N
40
Sound pressure level
(Standard 0.0002µ bar) dB
Model FDR408-A
Noise level 46 dB (A) at HIGH
39 dB (A) at LOW
Model FDR508-A
Noise level 47 dB (A) at HIGH
40 dB (A) at LOW
Mid octave band frequency (Hz)
N30
N20
N50
N
60
N
70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N40
Sound pressure level
(Standard 0.0002µ bar) dB
Mid octave band frequency (Hz)
N30
N20
N
50
N60
N70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N40
Sound pressure level
(Standard 0.0002µ bar) dB
Model FDC508HES3
Noise level 55 dB (A)
Souud pressure level
(standard 0.0002µbar)
Mid octave band frequency (Hz)
N
3
0
N
2
0
N
5
0
N
6
0
N
7
0
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N
4
0
(2) Outdoor unit
Model FDC808HES3
Noise level 58 dB (A)
Model FDC1008HES3
Noise level 58 dB (A)
Mid octave band frequency (Hz)
N30
N20
N50
N60
N70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N40
Sound pressure level
(Standard 0.0002µ bar) dB
Mid octave band frequency (Hz)
N30
N20
N50
N60
N70
63 125 250 500 1000 2000 4000 8000
20
30
40
50
60
70
20
30
40
50
60
70
N
40
Sound pressure level
(Standard 0.0002µ bar) dB
711
V MULTI
18.3 ELECTRICAL DATA
18.3.1 Electrical wiring
(1) Indoor unit
(a) Ceiling recessed type (FDT)
Models All models
(b) Cassetteria type (FDR)
Models All models
LM
FM
I
(49FI)
DM
Y / GN
RD
WH
BK
TB
1
2
3
1
2
9
X
1
X
3
X
4
X
7
X
5
X
2
WH
WH
WH
OR OR
RD
RD
BL
BK
BL
BK
WHWHY / GN
CnJ
CnF
1
CF
I
3
87
6
5
L
H
UH
OR
WHWH
RDWH
RD
BR
BR
GR
CnF
1
CnJ
CnR
CnI
CnI
CnR
4
13
X
1
X
2
X
3
X
4
X
7
X
5
Val
CnT
CnH
CnN
CnSCnB
CnN
CnH
2
ThI–A
ThI–R
BK
BK
BK BK
RD
RD
BK
BK
BK
RD
BK
BR
CnW
1
CnW2
CnQ
Tr I
Test
XR1
XR2
XR3
XR4
XR5
Option
Remote
controller
SW2
SW3
ON
BK
BK
RD
WH
BK
RD WH BK
Thc
BK LS
CnS2
BK
ON
OFF
OFF
1 2 3 4
1 2 3 4
PC
FS
X
6
4
5
BL
BR
PC
10
14
X
6
12V
220/240V
Printed circuit board
Y
YZZXX
{
{
Power wires
to outdoor unit
to outdoor unit
Y / GN
RD
RD
FM
I1
(49FI)
X
3
X
4
X
7
BK
RD
BK
BKBKBL
BL BL
BR
BR
BR
CnF
4
CnF
4
CnF
3
CnF
2
CF
I1
87
6
HML
UH
OR
OR
CnF
2
RD/WH
BL/WH
BK/WH
CnF
4
CnF
3
FM
I2
(49FI)
Y / GN
WH
CnF
5
CnF
5
CnS
CF
I2
HML
UH
OR
OR
CnF
5
DM
Y / GN
RD
WH
BK
TB
1
2
3
1
11
9
X
5
X2X
1
5
WH
BKWH BR
RDWH BR
RD RD
BK BK
BR
/WH
GR
CnR
CnI
CnRI
CnRI
CnRI
CnRI
CnI
CnR
43
13
X
1
X
2
X
3
X
4
X
7
X
5
Val
CnT
CnH
CnN
CnN
CnH
2
ThI–A
ThI–R
BK
BK
BK BK
RD
RD
BK
BK
BK
RD
BK
BR
CnW
1
CnW
2
CnQ
Tr I
Test
XR1
XR2
XR3
XR4
XR5
Option
SW3
ON
OFF
1 2 3 4
PC
Printed circuit board
FS
X
6
4
5
BL
BR
PC
10
14
X
6
12V
220/240V
CnB
RD
WH
BK
Y
Z
X
TB
Remote
controller
RD WH BK
Thc
Y ZX
{
{
Power wires
to outdoor unit
to outdoor unit
Note(1) "FMI2" and the following wires (shown in ) are equipped only for FDR408, 508.
SW1
Mark Parts name
X5 Auxiliary relay (for 52C)
X6 Auxiliary relay (for 20S, 52Fo)
Thc Thermistor
ThI-A Thermistor
ThI-R Thermistor
TrI Transformer
VaI Varistor
PC Photo coupler
Meaning of marks
Mark Parts name
FMI1, 2 Fan motor (indoor unit)
49FI Internal thermostat for FMI
CFI1, 2 Capacitor for FMI
DM Drain motor
FS Float switch
X1 Auxiliary relay (for LM)
X2 Auxiliary relay (for DM)
X3 4, 7 Auxiliary relay (for FMI)
Mark Parts name
CnA-W Connector
TB Terminal block
■ Connector
v Terminal (F)
LED-1 Indication lamp (Green-Run)
LED-2 Indication lamp (Yellow-Check)
SW1 Switch (Address set)
SW3 Changeover switch
Mark Color
WH White
Y/GN Yellow/Green
RD/WH Red/White
BL/WH Blue/White
BK/WH Black/White
BR/WH Brown/White
Color mark
Mark Color
BK Black
BL Blue
BR Brown
GR Gray
OR Orange
RD Red
Meaning of marks
Mark Parts name
FMI Fan motor (indoor unit)
49FI Internal thermostat for FMI
CFI Capacitor for FMI
LM Louver motor
LS Limit switch
DM Drain motor
FS Float switch
X1 Auxiliary relay (for LM)
X2 Auxiliary relay (for DM)
Mark Parts name
X3, 4, 7 Auxiliary relay (for LM)
X5 Auxiliary relay (for 52C)
X6 Auxiliary relay (for 20S, 52Fo)
Thc Thermistor
ThI-A Thermistor
ThI-R Thermistor
TrI Transformer
VaI Varistor
PC Photo coupler
Mark Parts name
CnA-W Connector
TB Terminal block
■ Connector
v Terminal (F)
LED-1 Indication lamp (Green-Run)
LED-2 Indication lamp (Yellow-Check)
SW2, 3 Changeover switch
Color mark
Mark Color
BK Black
BL Blue
BR Brown
GR Gray
OR Orange
RD Red
712
V MULTI
Meaning of marks
Mark Parts name
CM Compressor motor
FMo1,2 Fan motor (outdoor unit)
52C Magnetic contactor for CM
49C Internal thermostat for CM
49Fo1,2 Intrnal themostat for FMo
CH Crankcase heater
CFo1,2 Capacitor for FMo
Xo1~7 Auxiliary relay
63H
1
High pressure switch (for protection)
63H2 High pressure switch (for control)
F Fuse
Meaning of marks
Mark Parts name
CM Compressor motor
FMo1,2 Fan motor (outdoor unit)
52C Magnetic contactor for CM
49Fo1,2 Internal thermostat for FMo
CH Crankcase heater
CFo1,2 Capacitor for FMo
Xo1~8 Auxiliary relay
63H2 High pressure switch (for control)
20S 4 way valve solenoid coil
SV1,2 Solenoid coil (for control)
F Fuse (3.15A)
LED-G Indication lamp (Green)
Meaning of marks
Mark Parts name
LED-R Indication lamp (Red)
CT1,2 Current sensor
Tho-R Thermistor (outdoor H.Ex.temp.)
Tho-D Thermistor (discharge temp.)
Tho-A Thermistor (outdoor air temp.)
Tro Transformer
Vao Varistor
PC Photo coupler
CnA~R Connector
TB Terminal block
NR Surge suppressor
(2) Outdoor unit
Model FDC508HES3
Power source
3Phase 380-415V 50Hz
Models FDC808HES3, 1008HES3
Power source
3Phase 380-415V 50Hz
TB
RD/WH
BK/WH
BK/RD
BL/WH
BR/WH
Y/GN
BK
DR
DR
Tho-R
63H
2
CnL
LED-R
LED-G
(Check)
(Run)
CnE
Vao
(Checker)
CnA1
Tro
CnA2
BK
Tho-DBKTho-A
6
14V
27
BL/WH
BK/RD
BR/WH
BL
BL
BL
BL
PPBR
BR
BK
BK
26252322212019181716131221
13245
6
Printed Circuit Board
3
HLUH
A1
CF01
A2
28
X05
X02
X01
X03 X04
X06 X08 X07
X01
220/240V
7
PC
PC
CnR
CnM
1
CH
X04
X07
X02
X05
X08
X03
X06
2/N
3
4
5
F(3.15A)
OR/WH
OR/WH
ORORWHBRBL
BK
BL
RD
Y/GN
WH
WH
BL
RD
WH
BL
BK/WH
RD
BK
BK
CT2CT1
V
UW
52C
RD/WH
RD
BK/WH
WH
L3
N
L
2
TB
SV2SV152C20S
FMO1
(49FO1)
1514
HLUH
CF02
CnM2
GRGRORORWHBRBL
BK
FMO2
(49FO2)
CM
}
}
Power wires
to indoor unit
to indoor unit
NR
L1
1
TB
RD/WH
BK/WH
BK/RD
BL/WH
BR/WH
Y/GN
RD
OR
OR
Tho-R
63H
2
CnL
LED-G
LED-R
(Normal)
(Check)
CnE
Vao
(Checker)
CnA1
Tro
CnA2
Y
Tho-A
6
14V
27
BL/WH
BK/RD
BR/WH
PPBRBRGR
GR
26252322212019181716131221
13245
6
Printed Circuit Board
3
HL
A1
CF01
A2
28
X05
X02
X01
X03 X04
X07
X01
220/240V
7
CnQ
(Test)
PC
PC
CnR
CnM
1
CH
X04
X07
X02
X05
X03
OR
OR
63H
1
49C
89
1
2/N
3
4
5
F(3.15A)
F(3.15A)
F(5A)
OR/WH
OR/WH
ORORWHBLBK
BL
RD
Y/GN
WH
WH
BL
RD
WH
BL
BK/WH
RD
CT2CT1
V
UW
52C
RD
BK/WH
WH
L3
L1
N
L
2
TB
52C20S
FM
O1
(49FO1)
1514
H
CF02
CnM
2
GRGRORORWH
BK
FM
O2
(49FO2)
CM
}
}
Power wires
to indoor unit
to indoor unit
Meaning of marks
Mark Parts name
LED-G Indication lamp (Green)
LED-R Indication lamp (Red)
CT1,2 Current sensor
Tho-R Thermistor (outdoor H.Ex.temp.)
Tho-A Thermistor (outdoor air temp.)
Tro Transformer
Vao Varistor
PC Photo coupler
CnA~R Connector
TB Terminal block
Mark Color
BK/RD Black/Red
BK/WH Black/White
BL/WH Blue/White
BR/WH Brown/White
OR/WH Orange/White
RD/WH Red/White
Y/GN Yellow/Green
Color mark
Mark Color
BK Black
BL Blue
BR Brown
GR Gray
OR Orange
P Pink
RD Red
WH White
Mark Color
BK/RD Black/Red
BK/WH Black/White
BL/WH Blue/White
BR/WH Brown/White
OR/WH Orange/White
RD/WH Red/White
Y/GN Yellow/Green
Color mark
Mark Color
BK Black
BL Blue
BR Brown
GR Gray
OR Orange
P Pink
RD Red
WH White
713
V MULTI
18.5.3 Installation of outdoor unit
OWARNING
BE SURE TO READ THESE INSTRUCTIONS CAREFULLY BEFORE BEGINNING INSTALLATION. FAILURE TO FOLLOW THESE INSTRUCTIONS COULD
CAUSE SERIOUS INJURY OR DEATH, EQUIPMENT MALFUNCTION AND/
OR PROPERTY DAMAGE.
(1) Installation
(a) Accessories
Confirm accessories shown below are attached in the bag with this installation manual.
1) “Edging” for protection of electric wires from opening edge.
(b) Selection of installation location
Select the installation location after obtaining the approval of customer.
1) The place where the foundation can bear the weight of Outdoor unit.
2) The place where there is no concern about leakage of combustible gas.
3) The place where it is not stuffy.
4) The place where free from thermal radiation of other thermal source.
5) The place where flow of drain is allowed.
6) The place where noise and hot air blast do not trouble neighboring houses.
7) The place where there is no obstruction of wind at the intake air port and discharge air port.
18.4
OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER
Except for function relating to heating, same as the unit for FDT(N) heat pump type. See page 317.
18.5 APPLICATION DATA
18.5.1 Installation of indoor unit
(1) Ceiling recessed type (FDT)
Except for function relating to heating, same as the unit for FDT(N) heat pump type. See page 333.
(2) Cassetteria type(FDR)
Except for function relating to heating, same as the unit for FDR heat pump type. See page 571.
18.5.2 Installation of remote controller(Optional parts)
Except for function relating to heating, same as the unit for FDT(N) heat pump type. See page 337.
714
V MULTI
I II III
L
1 Open Open 500
L
2 000
L3 300 300 300
L
4 Open 500 0
H
1 ––
1000 or less
H2 No limit No limit No limit
H3 No limit No limit
700 or less
H4 – No limit No limit
Dimensions
8) When the unit is installed at the particular location as shown below, corrosion or failure may be caused. Please consult
the dealer from which you purchased the air-conditioner.
a) The place where corrosive gas is generated (hot spring, etc.).
b) The place where wind containing salt blows (seaside area).
c) The place where enveloped by oil mist.
d) The place where there is a machine that radiates electromagnetic wave.
Request ¡ Restrict the height of obstruction wall in front of the discharge air port to the height of unit or less.
¡ Do not enclose around the unit by the obstruction. Secure the top space for 1 m or more.
¡ When installing the units side by side in series, secure a space of 10 mm between units.
¡ When installing the unit where there is a concern about the short circuit, attach the guide louver in front of
discharge air port to prevent the short circuit.
¡ When installing plural units in a group, secure sufficient intake space to prevent the short circuit.
¡ When installing the unit where it is covered by snow, provide appropriate snow break means.
¡ When installing the unit where it is subject to strong wind, execute wind-breaking work.
(c) The minimum space for installation
Select the space considering the direction of refrigerant piping.
Secure with the anchor bolt.
2) Install the unit directing the
discharge air port at a right
angle to the wind direction.
(d) Location where strong wind blows against the unit
3) Where the foundation is not stable, secure the
unit with wire, etc.
1) Install the unit directing the
discharge air port to the wall.
500 or more
Air
inlet
Air outlet
(Service space)
(2) Carry-in and installation of unit
Pay sufficient attention to the carry-in and moving work of the unit, and always execute work by two persons or more.
(a) Carry-in
1) When carrying-in the unit, carry it in as packed condition to the installation site as near as possible.
2) If you are compelled to carry-in the unit unpacked condition, lift the unit by the rope using a nylon sling or
applying protection plates so that the unit is not marred.
CAUTION
¡ Rope the unit taking the discrepancy of center of gravity into consideration.
Protection plate
Wood base
Air inlet
Installation
example
Note (1)
If the wall heightH1 and H3 in installation example III exceed the limit, make
L1 and L3 as follow.
L1 = H1 - 500
L3 = 300 + ( H3 - 700 ) / 2
However, if L3 is larger than 600, there is no limit on wall height H3.
Wall height H3
Wall height H1
Wall height H4
Wall height H2
Air suction
(Service space)
Hanging hook
Model FDC508HES3 Models FDC808HES3,
1008HES3
Model FDC508HES3
Models FDC808HES3, 1008HES3
Unit: mm
I II III
Unit: mm
Open
space
Open
space
Open
space
500
300 5
150 300 150
5
L1
L2
L3
L4 55
Installation
example
Distance
Fasten with anchor bolts
Wire
Models FDC808HES3,
1008HES3
Model FDC508HES3
Wind
direction
Wind
direction
(Only case of FDC508HES3)
715
V MULTI
(c) Bolt securing position
(3) Refrigerant piping work
Select the piping specification to fit the specification of Indoor unit and installation location.
(a) Decision of piping specification
(i) Twin type
• FDC508HES3 [Branch pipe set: DIS-WA]
Make the width
wide.
1) Use anchor bolts (M10) to secure the unit's legs.
2) Securely install the unit so that it dose not fall over during earthquakes or strong winds, etc.
3) Refer to the above illustrations for information regarding concrete foundations.
4) Install the unit in a level area. (With a gradient of 1/100 or less.)
Anchor bolt
position
(4 locations)
(Service panel side)
Fasten with a
bolt (M10).
Sink the
foundation
deeply.
508
258
258
Outdoor unit
Indoor unit
φ19.05
φ15.88
φ9.52
φ15.88
φ9.52
φ9.52
1
2
Chart of shapes of branch piping parts (DIS-WA)
Gas pipe Liquid pipe Reducer
Mark Mark Mark
30
190
8
105
50
8
15
ID19.05
ID15.88
ID15.88
ID9.52
ID9.52
ID9.52
ID9.52
OD19.05
ID15.88
OD15.88
ID19.05
φ6.35
flared nut
11
60
180
8
80
10
80
10
12
3
4
5
Notes (1) 1 to 5 in the drawing include parts provided in the branch piping set. It shows
the codes for the shapes of different-diameter connections.
(2) Branch piping should always be arranged to have level or perpendicular branch.
(Refer to the drawing below for details.)
Model FDC508HES3
20
Anchor bolt position
(4 places)
Intake
Discharge
160 580 175
20
380
Models FDC808HES3, 1008HES3
Unit: mm
< 2-Way Branch >
< 3-Way Branch >
FloorFloor
Floor
Floor
Floor
Floor
Mount sections level with the floor.
Mount sections
perpendicular to the floor.
The branch piping (both gas and liquid lines) should always be arranged to have a level or perpendicular
branch.
716
V MULTI
808
408
408
Outdoor unit
Indoor unit
φ25.4
φ19.05
φ9.52
φ19.05
φ9.52
φ12.7
1
3
2
4
808
308
508
φ25.4
φ15.88
φ9.52
φ19.05
φ9.52
φ12.7
1
5
3
2
4
1008
508
508
Outdoor unit
Indoor unit
φ28.58
φ19.05
φ9.52
φ19.05
φ9.52
φ15.88
1
2
Chart of shapes of branch piping parts (DIS-WB)
Gas pipe Liquid pipe Reducer
Mark Mark Mark
45
190
80
10
20
ID28.58
ID19.05
ID19.05
ID9.52
ID15.88
ID9.52
OD28.58
(ID25.4)
ID25.4
(OD28.58)
OD15.88 ID12.7
15
90
180
8
80
10
OD19.05 ID15.88
80
10
12
3
4
5
• FDC808HES3 [Branch pipe set: DIS-WB] • FDC1008HES3 [Branch pipe set: DIS-WB]
(ii) Triple type
• FDC808HES3 [Branch pipe set: DIS-TB] • FDC1008HES3 [Branch pipe set: DIS-TB]
408
408
1008
208
φ28.58
φ19.05
φ9.52
φ19.05
φ9.52
φ15.88
φ9.52
φ15.88
5
5
5
1
2
6(φ6.35)
308
308
808
308
Outdoor unit
Indoor unit
φ25.4
φ15.88
φ9.52
φ15.88
φ9.52
φ15.88
φ9.52
φ12.7
13
42
508
258
1008
258
Outdoor unit
Indoor unit
φ28.58
φ19.05
φ9.52
φ15.88
φ9.52
φ15.88
φ9.52
φ15.88
1
2
Chart of shapes of branch piping parts
(DIS-TB)
Gas pipe Liquid pipe Reducer
Mark Mark Mark
100 80 80
8
105
50
12
300
ID15.88
ID28.58
ID15.88×3
ID9.52×3
ID9.52
φ6.35
Flared nut
100
10
14
100
12
6
5
4
3
10
235
8
70 70
80
OD28.58
(ID25.4)
ID25.8
(OD28.58)
OD15.88 ID12.7
80
10
OD15.88 ID19.05
80
10
408
308
1008
308
φ28.58
φ19.05
φ9.52
φ15.88
φ9.52
φ15.88
φ9.52
φ15.88
1
2
Notes (1) 1 to 5 in the drawing include parts provided in the branch piping set.
It shows the codes for the shapes of different-diameter connections.
(2) Branch piping should always be arranged to have level or
perpendicular branch.
(Refer to the preceding page for details.)
Notes (1) 1 to 6 in the drawing include parts provided in the branch piping set. It shows
the codes for the shapes of different-diameter connections.
(2) Branch piping should always be arranged to have level or perpendicular branch.
(Refer to the preceding page for details.)
(3) If the indoor unit is the 208 type, always use a ø 9.52 size branch piping (branch
piping to indoor unit) .
717
V MULTI
Chart of shapes of branch piping parts
Gas pipe Liquid pipe Reducer
Mark Mark Mark
Gas pipe Liquid pipe Reducer
Mark Mark Mark
45
190
80
10
20
ID28.58
ID19.05
ID19.05
ID9.52
ID15.88
ID9.52
OD28.58
(ID25.4)
ID25.4
(OD28.58)
OD15.88 ID12.7
15
90
180
8
80
10
808
208
208
Outdoor unit
Indoor unit
ø25.4
ø12.7
ø19.05
ø9.52
ø15.88
ø9.52
ø9.52
(ø6.35)
(ø6.35)
208
208
DIS-WA
DIS-WA
DIS-WB
•
DIS-WB
•
DIS-WB
30
190
8
105
50
8
15
ID9.52
ID9.52
ID9.52
ID15.88
ID19.05
ID15.88
ID9.52
ø6.35 flared
nut
11
60
180
8
3
4
5
6
7
7
(ø6.35)
(ø6.35)
ø9.52
ø9.52
ø15.88
ø9.52
ø19.05
ø15.88
(ø15.88)
7
1
5
2
6
3
4
7
7
6
5
2
1
Outdoor unit
Indoor unit
ø9.52
ø15.88
ø9.52
ø15.88
ø9.52
ø15.88
ø9.52
ø9.52
ø9.52
ø15.88
ø19.05
ø19.05
ø28.58
ø28.58
4
3
4
3
2
1
1008
258
258
258
258
Gas pipe Liquid pipe
Mark Mark
Gas pipe Liquid pipe
Mark Mark
45
190
10
20
ID28.58
ID19.05
ID19.05
ID9.52
ID15.88
ID9.52
15
90
180
8
•
DIS-WB
•
DIS-WA
30
190
8
15
ID9.52
ID9.52
ID9.52
ID15.88
ID19.05
ID15.88
11
60
180
8
1 2
3 4
DIS-WA
DIS-WA
DIS-WB
Chart of shapes of branch piping parts
(iii) Double twin
• FDC808HES3 [Branch pipe set: DIS-WA × 2set, DIS-WB × 1set]
Notes (1) 1 to 7 in the drawing include parts provided in the branch piping set. It shows the codes for the shapes of different-diameter connections.
(2) Branch piping should always be arranged to have level or perpendicular branch.(Refer to the 715 page for details.)
(3) If the indoor unit is the 208 type, always ues a ø 9.52 size branch piping (branch piping to indoor unit).
• FDC1008HES3 [Branch pipe set: DIS-WA × 2set, DIS-WB × 1set]
Notes (1) 1 to 4 in the drawing include parts provided in the branch piping set. It shows the codes for the shapes of different-diameter connections.
(2) Branch piping should always be arranged to have level or perpendicular branch.
(Refer to the 715 page for details.)
718
V MULTI
(b) Piping work
Request
¡ Use the pipe made of following material. Moreover, it is very convenient for you to use the separately sold piping kit.
Material: Phosphor deoxidized seamless copper tube (C1220T, JIS H3300)
¡ In the case of this unit, condensation water is also generated on the liquid piping. Insulate both of the liquid piping and gas
piping perfectly.
¡ In the case of heat pump type unit, the maximum temperature of the gas piping reaches approx. 120˚C, therefore use the
insulation material which has sufficient heat resistance.
¡ When bending the pipe, bend it with large radius as much as possible. Do not bend the same portion of pipe repeatedly.
¡ Do not let dust, chips or water enter the pipe while pipe working.
¡ The flared connection for refrigerant piping is required. Flare the pipe after inserting
the flared nut into the pipe.
¡ Tighten the flared connection firmly using 2 of spanners. Comply with the following
value for tightening torque of the flared nut.
¡ In the case of brazing connection, perform brazing while flowing nitrogen gas in the pipe to prevent generation of oxide film
inside the pipe without fail.
Internal hook
IMPORTANT
(c) Leak test and air purge
Perform the procedure according to the following instructions.
Request ¡ Perform the air purge of Indoor unit and refrigerant piping by vacuuming method without fail.
Model FDC508HES3
3) After completion of vacuuming,
remove the cap nut for the valve
stem and fully open the service
valve (for both of liquid and gas)
as shown in the right illustration.
After confirming that the valve is
fully open, tighten the cap nuts (for
valve stem and charge port).
Air purge
2) While holding the service
valves (both of liquid and gas
sides) of the Outdoor unit at
fully closed position, perform vacuuming at –0.1 MPa
(–76 cmHg) or under from
the service valve charge port.
Leak test
1) After tightening all flared nuts on the Indoor
unit and Outdoor unit, hold the service valves
(both of liquid and gas sides) of the Outdoor
unit in fully closed position and perform the
leak test from the charge port of service valve
to confirm that there is no leakage.
Use nitrogen gas for leak test. Execute
the test at the pressure of 3.0 MPa
(30kgf/cm
2
G).
()
Open
Hexagonal Head Wrench
(Size 4)
Liquid service valve Gas service valve
Handle
Pin
¡ T ake care so that the piping to be w orked does not contact the parts contained in the unit.
If it contacts the inner parts, abnormal sound or vibration may occur.
Open state
ø 9.52, ø 12.7: 40 to 50 (N·m),
(4 to 5 (kg·m))
ø 15.88: 90 to 120 (N·m),
(9 to 12 (kg·m))
ø 19.05: 100 to 140 (N·m),
(10 to 14 (kg·m))
Models FDC808HES3, 1008HES3
ø 6.35: 16 to 20 (N·m),
(1.6 to 2.0 (kg·m))
1) How to remove the service panel (Only case of FDC508HES3)
Remove screws on the service panel, pull down the panel toward
the arrow direction, and then remove the panel toward you.
2) Refrigerant pipe connection
a) The piping can be taken out to the right, left (FDC808, 1008 type)
front, rear and botton directions.
b) Cut the plate at the knockout portion on the piping penetration section
with necessary minimum size.
c) Mount the attached edging by cutting it to the appropriate length before connecting the pipe.
Model FDC508HES3
Rear side connection
Right side connection
Down side connection
Liquid piping
Gas piping
}
Electric wires
{
Electric wires
Liquid gas piping
}
Liquid and
gas piping
Electric wires
{
Liquid and gas
piping
Front side connection
Left
connection
Front
connection
Back
connection
Right
connection
Botton
connection
719
V MULTI
(3) After completion of
vacuuming, remove the
cap nut for the valve
stem and fully open the
service valve (for both
of liquid and gas) as
shown in the right
illustration.
After confirming that
the valve is fully open,
tighten the cap nuts (for
valve stem and charge
port).
Air purge
(2)While holding the
service valves (both
of liquid and gas
sides) of the Outdoor
unit at fully closed
position, perform
vacuuming at –0.1
MPa (–76 cmHg) or
under from the service valve charge port.
Leak test
(1) The unit's air-tightness test has been conducted but after completing
the piping connections conduct an air-tightness test of the connected
piping and the indoor units using the outdoor gas side service valve
check joint. Be sure to conduct this test with the service valve closed.
1 When the pressure has been increased to 0.5 MPa stop increasing
the pressure and maintain this state for at least 5 min. to check if
the pressure drops.
2 Next, increase the pressure to 1.5 MPa and again maintain this
state for at least 5 min. to check if the pressure drops.
3 Then increase the pressure to 3.0 MPa and maintain this state for
approx. one day to check if the pressure drops.
Use nitrogen gas for the air-tightness check.
Open
Hexagonal Head Wrench
(Size 4)
Liquid service valve Gas service valve
Handle
Pin
Open state
Models FDC808HES3, 1008HES3
(d) Charging with additional refrigerant
The length of piping will require charging with additional refrigerant. Refer to the table below for making the additional charge. If
your calculations show that the additional charge amount is a minus number, charging is not required.
Notes (1) Use the table above to find the amount of additional charge (kg/m)
C per 1 meter of piping.
(2) The value in ( ) indicates the amount of additional charge per 1
meter of piping for main piping up to 30 meters.
Method of Calculation
Refer to the example of calculation on the next page for the piping length code in the formula (L,
1, ~ 3).
For additional charging G = Amount of additional charge (kg.)
Twin and triple specifications
G = main piping L (m) × C + branch piping length
1
(m) × f + branch piping length
2
(m) × f + branch piping
3
(m) × f – (D – B)
(only for triple specifications)
Confirm for additional charge volume (FDC508HES3 only)
• If the calculated required charge is greater than the maximum permissible charge volume shown in the table above, use the
following formula to find the amount of the insufficient refrigerant amount for the weight of the additional charge.
G (kg) = E (kg) _ D (kg)
• If the calculated required charge is less than the maximum permissible charge volume shown in the table above as well as greater
than amount of charge at the time of shipment, use the following formula to find the amount of the insufficient refrigerant
amount for the weight of the additional charge.
G (kg) = Reguired charge amount (kg) _ D (kg)
¡ f = Additional charge amount per 1 meter of
branch piping
208, 258, 308: 0.025kg/m
408, 508: 0.035kg/m
FDC508
Amount
Piping length already
charged with refrigerant.
Standard refrigerant volume.
(When piping is 0 meters.)
Additional charge volume
per 1 meter of main piping.
Amount of charge
at time of shipping
Maximum permissible
charge volume.
Item
FDC808 FDC1008
555
1.73 5.11 7.25
0.02
(0.035)
0.045 0.07
1.90 5.33 7.60
3.18
A (m)
B (kg)
C (kg/m)
D (kg)
E (kg)
__
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(4) Electrical wiring
™ This air conditioning system should be notificated to supply authority before connection to power supply system.
(a) Selection of size of power supply and interconnecting wires.
IMPORTANT
¡ Electric wiring work should be conducted only by authorized personnel.
¡ Use copper conductor only.
¡ Power source wires and Interconnecting wires shall not be lighter than
polychloroprene sheathed flexible cord (design HO5RN-F IEC 57).
¡ Do not connect more than three wires to the terminal block.
¡ Use round type crimped terminal lugs with insulated grip on the end of the wires.
¡ Select wire sizes and circuit protection from Table 2.
Table 2 ( This table shows 20m length wires with less than 2% voltage drop. )
FDC508HES3 30 20 1.6mm
FDC808HES3 3
50 50
5.5mm
2
2.0mm
FDC1008HES3
Power source
wires
(minimum)
Interconnecting
and grounding
wires (minimum)
Over-current protector
rated capacity (A)
Switch breaker
(A)
Item
Model
Phase
Circuit breaker
1) For twin type
Outdoor Unit: FDC508HES3
Indoor Unit: FDT258-A + FDR258-A
Double twin specification (FDC808, 1008HES3 only)
G = main piping L (m) × C + branch piping L
1(m) × f + branch piping L2 (m) × f + branch piping 1 (m) × f
+ branch piping
2 (m) × f + branch piping 3 (m) × f + branch piping 4 (m) × f - (D - B)
Example of Calculation
8.0mm
2
FDC508
Outdoor unit Indoor unit
FDT258-A
FDR258-A
φ9.52
φ9.52
Liquid line φ9.52
Main piping L=30m
1=5m
2=5m
G=30m(L) × 0.035kg/m + 5m( 1) × 0.025kg/m + 5m( 2) × 0.025kg/m - (1.90 - 1.73)
=1.13kg
Amount of additional charge: 1.13 kg
Twin Type
FDC1008
Outdoor unit Indoor unit
FDT258-A
FDT258-A
FDR258-A
φ9.52
φ9.52
Liquid line φ15.88
Main piping L=20m L
1
=5m
4
=5m
FDR258-A
φ9.52
3
=5m
φ9.52
1
=5m
φ9.52
φ9.52
1
=5m
L2=5m
G=20m(L) × 0.07kg/m + 10m(L
1+L2
) × 0.025kg/m + 20(
1
+ 2 + 3 +
4
) × 0.025kg/m
- (7.6 - 7.25)=1.8kg Amount of additional charge: 1.8 kg
Double twin Type
2) For double twin type
Outdoor Unit: FDC1008HES3
Indoor Unit: FDT258-A + FDT258-A + FDR258-A + FDR258-A
For recharging If vacuum extracted and recharging.
Twin & triple specifications
G = B + main piping L (m) × C + branch piping 1 × f + branch piping 2 (m) × f + branch piping 3 (m) × f
(only fortriple specifications)
Double twin specification (FDC808, 1008HES3 only)
G = main piping L (m) × C + branch piping L1(m) × f + branch piping L2 (m) × f + branch piping 1 (m) × f
+ branch piping
2 (m) × f + branch piping 3 (m) × f + branch piping 4 (m) × f
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V MULTI
1) Between the indoor Master and Slave units connect to the same No. as for
terminal blocks 123
and X Y Z .
2) Use rotary SW2 on the indoor circuit board to set the same remote controller
communi-cation address for both the indoor Master and Slave units.
3) Set the indoor Slave units to Slave a to Slave c using the plural address
switches SW2-3, and SW2-4 on the indoor circuit board.
4) After turning on the power, press the remote controller's "Air-conditioner
No. / Check" switch and then confirm that the connected indoor Master and
Slave units are displayed on the remote controller.
(b) Wiring connection.
¡ Connect the same terminal number between the Indoor unit and Outdoor unit as shown in the following diagram.
¡ Make wiring to supply to the Outdoor unit, so that the power for the Indoor unit is supplied by 1 and 2 terminals.
¡ Secure the wiring with wiring clamp so that no external force is transmitted to the connecting portion of terminal.
¡ There is a ground (Earth) terminal in the control box.
(5) Test run
CAUTION
¡ Run the unit continuously for about 30 minutes, and check the following.
™ Suction pressure at check joint on the compressor suction pipe.
™Discharge pressure at check joint on the compressor discharge pipe .
™Temperature difference between return air and supply air for Indoor unit.
¡ Refer to “Check Indicator Table” on wiring diagram of Outdoor unit or “User’s manual” of Indoor unit for diagnosis of
operation failure.
IMPORTANT
THIS UNIT WILL BE STARTED INSTANTL Y WITHOUT "ON" OPERATION WHEN ELECTRIC
POWER IS SUPPLIED.
BE SURE TO EXECUTE "OFF" OPERATION BEFORE ELECTRIC POWER IS
DISCONNECTED FOR SERVICING.
¡ This unit has a function of automatic restart system after recovering power stoppage.
DO NOT LEAVE OUTDOOR UNIT WITH THE SERVICE PANEL OPENED.
¡ When the service panel is removed, high voltage portion and high temperature areas are exposed.
¡ Check that the service valves are fully opened without fail before operation.
¡ Turn on the power for over 12 hours to energize the crankcase heater in advance of
operation.
¡ Wait more than 3 minutes to restart the unit after stop.
(c) Plural Master / Slave setting
Set the plural address switches SW2-3 and SW2-4 on the indoor circuit
board as shown in the table below.
(d) Wiring out take direction
¡The four directions of front, left (FDC808, 1008 type), right, and
bottom are possible.
¡ When connecting piping on site, remove the outside panel's knock out plate. After removing the knock out plate, install the
included edging around the edge of the hole in the panel.
Indoor unit
Master Slave a Slave b Slave c
Plural address switch SW2-3 OFF OFF ON ON
SW2-4 OFF ON OFF ON
Master setting at time of
factory shipment
L
1
L
2
L
3
N
1
2
N
3 4
5
X Y Z
1
2
N
3 4
5
X Y Z
1
2
N
3 4
5
X Y Z
1
2
N
3 4
5
X Y Z
For twin units For triple units
Indoor Master
Outdoor
Remote
controller
For single
units
Circuit breaker
Earth leakage breaker
Indoor unit
Slave b
Indoor unit
Slave a
Be sure to perform a
Type 3 grounding.
Wiring clamp
Securely fasten the clamp
after connecting the wiring.
Indoor/outdoor wiring terminal block
Connect to the same terminal
No. as for indoor.
Ground terminal
(
Power supply wiring terminal block
Do not tighten together the power
supply wiring of other units.
)
()
()
()
18.6
MAINTENANCE DATA
Same as the cooling/heating equipment for FDT(N) heat pump type. Refer to page 348.
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MEMO
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