Hitachi RAK-18RPD User manual

TECHNICAL CATALOGUE
MONO SPLIT
RAK-18RPD
RAK-25RPD
RAK-35RPD
RAK-42RPD
RAK-50RPD
RAC-18WPD
RAC-25WPD
RAC-35WPD
RAC-42WPD
RAC-50WPD

Specifications in this catalogue are subject to change without prior notice in order for HITACHI to bring
in the latest innovations to their customers
Whilst every effort is made to ensure that all dimensions and specifications are correct, any printers’
error not rectified are outside the control of HITACHI, who cannot be held responsible for the same

CONTENTS
1
CONTENTS
CONTENTS __________________________________________________________________________________
1 SPECIFICATIONS ______________________________________________________________________
1.1. WALL TYPE (RAK-18RPD/25RPD/35RPD) __________________________________________________
1.2. WALL TYPE (RAK-42RPD/50RPD)_________________________________________________________
1.3. WALL TYPE (RAC-18WPD/25WPD/35WPD) _________________________________________________
1.4. WALL TYPE (RAC-42WPD/50WPD) ________________________________________________________
2 DIMENSIONAL DATA ___________________________________________________________________
2.1. WALL TYPE: RAK-18RPD/25RPD/35RPD/42RPD/50RPD
2.2. WALL TYPE: RAC-18WPD/25WPD/35WPD __________________________________________________
2.3. WALL TYPE: RAC-42WPD/50WPD_________________________________________________________
3 CAPACITIES TABLE ____________________________________________________________________
3.1. CAPACITY CHARACTERISTIC CURVES____________________________________________________
3.1.1. RAK-18RPD/RAC-18WPD________________________________________________________________
3.1.2. RAK-25RPD/RAC-25WPD________________________________________________________________
3.1.3. RAK-35RPD/RAC-35WPD________________________________________________________________
3.1.4. RAK-42RPD/RAC-42WPD________________________________________________________________
3.1.5. RAK-50RPD/RAC-50WPD________________________________________________________________
3.2. CORRECTION FACTORS ACCORDING TO PIPING LENGTH ___________________________________
3.3. CORRECTION FACTORS ACCORDING TO DEFROSTING OPERATION __________________________
4 SOUND DATA _________________________________________________________________________
4.1. RAC-18WPD___________________________________________________________________________
4.2. RAC-25WPD___________________________________________________________________________
4.3. RAC-35WPD___________________________________________________________________________
4.4. RAC-42WPD___________________________________________________________________________
4.5. RAC-50WPD___________________________________________________________________________
5 WORKING RANGE _____________________________________________________________________
5.1. POWER SUPPLY_______________________________________________________________________
5.2. WORKING RANGE _____________________________________________________________________
6 ELECTRICAL DATA ____________________________________________________________________
6.1. INDOOR UNIT _________________________________________________________________________
6.2. OUTDOOR UNIT _______________________________________________________________________
7 WIRING DIAGRAM _____________________________________________________________________
7.1. RAK-18RPD/25RPD/35RPD/42RPD/50RPD
7.2. RAC-18WPD/25WPD/35WPD _____________________________________________________________
7.3. RAC-42WPD/50WPD____________________________________________________________________
8 REFRIGERANT CYCLE _________________________________________________________________
8.1. WALL TYPE: RAK/C-18R/WPD,RAK/C-25R/WPD,RAK/C-35R/WPD_______________________________
8.2. WALL TYPE: RAK/C-42R/WPD,RAK/C-50R/WPD _____________________________________________
9 CONTROL AND FUNCTION ______________________________________________________________
9.1. WIRELESS REMOTE CONTROL FUNCTION ________________________________________________
9.2. AUTO CHANGEOVER___________________________________________________________________
9.3. SHIFT VALUE__________________________________________________________________________
9.4. OPERATION LOCK _____________________________________________________________________
9.5. SETTING THE PREVENTION OF MUTUAL INTERFERENCE ___________________________________
9.6. INTERMITTENT FAN SPEED SETTING_____________________________________________________
9.7. FAN SPEED SETTING IN THERMO OFF IN COOLING_________________________________________
9.8. ERROR CODE INFORMATION____________________________________________________________
9.9. ADDITIONAL FUNCTION VIA DIP-SWITCH SETTINGS ________________________________________
9.9.1. AUTO RESTART FUNCTION _____________________________________________________________
9.9.2. HEATING/COOLING ONLY MODE SELECTION ______________________________________________
10 OPTION LIST__________________________________________________________________________
10.1. WIRED REMOTE CONTROL – SPX-RCDB __________________________________________________
10.1.1. SHIFT VALUE _________________________________________________________________________
10.1.2. ERROR CODE INFORMATION____________________________________________________________
10.2. H-LINK ADAPTOR – PSC 6RAD ___________________________________________________________
10.2.1. SAFETY SUMMARY ____________________________________________________________________
10.2.2. INSTALLATION WORK __________________________________________________________________
10.2.3. ELECTRICAL WIRING___________________________________________________________________
10.2.4. DIP SWITCH SETTING __________________________________________________________________
10.2.5. TEST RUN ____________________________________________________________________________
10.4. DISTRIBUTOR – SPX-DST1 ______________________________________________________________
10.3. DRY CONTACT (SPX-WDC3) APPLICATION (USING DIP SWITCH) ______________________________
1
2
2
3
4
5
6
6
7
8
9
9
9
10
10
11
11
12
14
15
15
16
17
18
19
20
20
20
21
21
21
22
22
23
24
25
25
25
26
26
28
28
29
29
30
31
32
33
33
33
34
34
34
35
37
37
37
38
39
40
43
41

SPECIFICATIONS
2
1 SPECIFICATIONS
1.1. WALL TYPE (RAK-18RPD/25RPD/35RPD)
INDOOR Unit RAK-18RPD RAK-25RPD RAK-35RPD
Nominal capacity adjustable no no no
Nominal Cooling capacity (min - max) kW 2.00 (0.90 - 2.50) 2.50 (0.90 - 3.10) 3.50 (0.90- 4.00)
Cooling sensible capacity kW 1.94 2.05 2.42
Nominal Heating capacity (min - max) kW 2.50 (0.90 - 3.20) 3.40 (0.90- 4.40) 4.20 (0.90- 5.00)
Noise level cooling (sound pressure)
(SL / L / M / H)
dB(A) 21/24/33/37 22/24/33/40 25/26/36/43
Noise level heating (sound pressure)
(SL / L / M / H)
dB(A) 19/22/33/38 20/23/34/41 26/27/36/44
Noise level (sound power) dB(A) 51 54 57
Air flow cooling mode (SL / L / M / H) m3/h 312 / 350 / 400 / 440 333 / 370 / 430 / 510 353 / 420 / 485 / 680
Air flow heating mode (SL / L / M / H) m3/h 312 / 350 / 420 / 480 333 / 400 / 500 / 570 363 / 480 / 570/ 780
Fan Motor W 30 30 30
Dehumidification l/h 1.2 1.4 1.6
Dimensions (H x W x D) mm 280 x 780 x 230 280 x 780 x 230 280 x 780 x 230
Weight kg 8.5 8.5 8.5
Colour Star White (N9.3) Star White (N9.3) Star White (N9.3)
Condensate Drain mm φ 16 φ 16 φ 16
Running current (C/H) A 1.09-4.39/1.09-4.22 1.09-5.61/1.09-6.52 1.09-6.35/1.09-7.39
Power supply 220-230V 220-230V 220-230V
Cable section (interconnection）mm² 1.50x 3+EARTH/- 1.50x 3+EARTH/- 1.50x 3+EARTH/-
Piping diameter (Liq / Gas) Inch 1/4" / 3/8" 1/4" / 3/8" 1/4" / 3/8"
Drain diameter (ext) mm φ 16 φ 16 φ 16
Remote control (standard/optional) RAR-6N1/SPX-RCDB RAR-6N1/SPX-RCDB RAR-6N1/SPX-RCDB
Filter
ACL Filter activated carbon activated carbon activated carbon
ACL part name SPX-CFH25 SPX-CFH25 SPX-CFH25
Pre-filter(Standard/Optional )
WASHABLE/
Stainless-SPX-SPF8
WASHABLE/
Stainless-SPX-SPF8
WASHABLE/
Stainless-SPX-SPF8
NOTE:
1. The nominal cooling and heating capacity is the
combined capacity of the HITACHI standard split
system, and are based on the ISO 5151.
2. The Sound Pressure Level is based on the following
conditions:
-0.8 meter beneath indoor height center
-1 meter from Discharge grille
The above data was measured in an anechoic
chamber. Please take into consideration reflected
sound of your specific site
Operation Conditions Cooling Heating
Indoor Air Inlet Temperature dB 27.0 °C 20.0 °C
WB 19.0 °C
Outdoor Air Inlet
Temperature
dB 35.0 °C 7.0 °C
WB 6.0 °C
Piping Length: 5.0 meters; Piping Lift: 0 meter
dB: Dry Bulb; WB: Wet Bulb
24.0
°C
15. 0 °C

SPECIFICATIONS 3
INDOOR Unit RAK-42RPD RAK-50RPD
Nominal capacity adjustable no no
Nominal Cooling capacity (min - max) kW 4.20(1.70- 5.00) 5.00 (1.90- 5.20)
Cooling sensible capacity kW 3.25 3.43
Nominal Heating capacity (min - max) kW 5.40(1.70- 6.00) 6.00 (2.2- 7.30)
Noise level cooling (sound pressure)
(SL / L / M / H)
dB(A) 25/28/39/46 25/28/39/46
Noise level heating (sound pressure)
(SL / L / M / H)
dB(A) 27/31/39/46 27/31/39/46
Noise level (sound power) dB(A) 60 60
Air flow cooling mode (SL / L / M / H) m3/h 353 / 410 / 540 / 720 353 / 410 / 540 / 750
Air flow heating mode (SL / L / M / H) m3/h 380 / 500 / 610 / 800 380 / 500 / 610 / 820
Fan Motor W 30 30
Dehumidification l/h 1.8 2.0
Dimensions (H x W x D) mm 280 x 780 x 230 280 x 780 x 230
Weight kg 8.5 8.5
Colour Star White (N9.3) Star White (N9.3)
Condensate Drain mm φ 16 φ 16
Running current (C/H) A 1.30-7.39/2.17-8.70 1.30-8.70/2.17-11.96
Power supply 220-230V 220-230V
Cable section (interconnection）mm² 2.50x 3+EARTH/- 2.50x 3+EARTH/-
Piping diameter (Liq / Gas) Inch 1/4" / 1/2" 1/4" / 1/2"
Drain diameter (ext) mm φ 16 φ 16
Remote control (standard/optional) RAR-6N1/SPX-RCDB RAR-6N1/SPX-RCDB
Filter
ACL Filter activated carbon activated carbon
ACL part name SPX-CFH25 SPX-CFH25
Pre-filter(Standard/Optional ) WASHABLE/
Stainless-SPX-SPF8
WASHABLE/
Stainless-SPX-SPF8
1.2. WALL TYPE (RAK-42RPD/50RPD)
NOTE:
1. The nominal cooling and heating capacity is the
combined capacity of the HITACHI standard split
system, and are based on the ISO 5151.
2. The Sound Pressure Level is based on the following
conditions:
-0.8 meter beneath indoor height center
-1 meter from Discharge grille
The above data was measured in an anechoic
chamber. Please take into consideration reflected
sound of your specific site
Operation Conditions Cooling Heating
Indoor Air Inlet Temperature dB 27.0 °C 20.0 °C
WB 19.0 °C
Outdoor Air Inlet
Temperature
dB 35.0 °C 7.0 °C
WB 6.0 °C
Piping Length: 5.0 meters; Piping Lift: 0 meter
dB: Dry Bulb; WB: Wet Bulb
24.0
°C
15. 0 °C

SPECIFICATIONS
4
1.3. WALL TYPE (RAC-18WPD/25WPD/35WPD)
NOTE:
1. The Sound Pressure Level is based on the following conditions:
-
1 meter from the unit front surface and 1 meter from floor level
The above data was measured in an anechoic chamber. Please take into consideration reflected sound of your
specific site
RAC-18WPD RAC-25WPD RAC-35WPD
kW 2.00 (0.90 - 2.50) 2.50 (0.90 - 3.10) 3.50 (0.90- 4.00)
kW 2.50 (0.90 - 3.20) 3.40 (0.90- 4.40) 4.20 (0.90- 5.00)
kW 0.419(0.25 - 1.01) 0.549(0.25 - 1.29) 0.941(0.25 - 1.46)
kW 0.519(0.25 - 0.97) 0.733(0.25 - 1.50) 1.000(0.25 - 1.70)
4.77/4.82 4.55/4.64 3.72/4.2
8.50/4.90 8.50/4.90 7.80/4.90
A+++/A++ A+++/A++ A++/A++
dB(A) 44 46 48
dB(A) 45 47 49
dB(A) 58 60 61
m3/h 1860 / 1620 1860 / 1620 1920 / 1620
mm
kg 32.5 32.5 32.5
Beige (5Y7/2) Beige (5Y7/2) Beige (5Y7/2)
V/Ph/Hz 230V / 1Ph / 50Hz 230V / 1Ph / 50Hz 230V / 1Ph / 50Hz
A 15 15 15
A 2.46/2.93 3.08/3.87 4.81/5.11
A 1.09-4.39/1.09-4.22 1.09-5.61/1.09-6.52 1.09-6.35/1.09-7.39
mm² 1.50x 2+EARTH 1.50x 2+EARTH 1.50x 2+EARTH
mm² 1.50x 3+EARTH 1.50x 3+EARTH 1.50x 3+EARTH
Inch 1/4" / 3/8" 1/4" / 3/8" 1/4" / 3/8"
m 3 3 3
m 20 / 10 20 / 10 20 / 10
kg 0.870 0.870 0.870
m / g/m 20/- 20/- 20/-
°C
R32 R32 R32
Propeller Fan Propeller Fan Propeller Fan
Type ROTARY ROTARY ROTARY
Oil Charge mL 320±20 320±20 320±20
Oil Type ACS-68R or equivalent ACS-68R or equivalent ACS-68R or equivalent
Coil resistance Ω 2.167 at 20℃2.167 at 20℃2.167 at 20℃
Quantity 1 1 1
EER / COP
Nominal Cooling capacity (min - max)
Nominal Heating capacity (min - max)
Nominal cooling power input (min - max)
Nominal heating power input (min - max)
Starting current(C/H)
SEER / SCOP
Energy class (SEER/SCOP)
Noise level cooling (sound pressure)
Noise level heating (sound pressure)
Noise level (sound power)
Air flow (Cooling / Heating)
Dimensions (H x W x D)
Weight
Colour (Munsell Code)
Power supply
Recommended fuse size
Running current (C/H)
Condenser Fan
Cable section (power)
Cable section (Interconnection)
Piping diameter (Liq / Gas)
Minimum piping length
Maximum piping length / height difference
Current quantity of refrigerant / Chargeless
Chargeless length / Additional refrigerant
charge
Working range (cooling / heating)
Refrigerant
Compressor
OUTDOOR
548× 750× 288 548× 750× 288 548× 750× 288
-10℃~43℃/-15~21℃-10℃~43℃/-15~21℃-10℃~43℃/-15~21℃

SPECIFICATIONS 5
1.4. WALL TYPE (RAC-42WPD/50WPD)
NOTE:
1. The Sound Pressure Level is based on the following conditions:
- 1 meter from the unit front surface and 1 meter from floor level
The above data was measured in an anechoic chamber. Please take into consideration reflected sound of your
specific site
RAC-42WPD RAC-50WPD
kW 4.20 (1.70- 5.00) 5.00 (1.90- 5.20)
kW 5.40 (1.7- 6.00) 6.00 (2.2- 7.30)
kW 1.120(0.30 - 1.70) 1.471(0.30 - 2.10)
kW 1.317(0.50 - 2.10) 1.558(0.50 - 2.75)
3.75/4.1 3.40/3.85
7.50/4.60 7.35/4.60
A++/A++ A++/A++
dB(A) 49 49
dB(A) 50 50
dB(A) 63 63
m3/h 2160 / 2160 2160 / 2160
mm 600x792x299 600x792x299
kg 39 39
Beige (5Y7/2) Beige (5Y7/2)
V/Ph/Hz 230V / 1Ph / 50Hz 230V / 1Ph / 50Hz
A 25 25
A 5.10/5.99 6.69/7.09
A 1.30-7.39/2.17-8.70 1.30-8.70/2.17-11.96
mm² 2.50x 2+EARTH 2.50x 2+EARTH
mm² 2.50x 3+EARTH 2.50x 3+EARTH
Inch 1/4" / 1/2" 1/4" / 1/2"
m 3 3
m 20 / 10 20 / 10
kg 1.050 1.050
m / g/m 20/- 20/-
R32 R32
Propeller Fan Propeller Fan
Type 2 Cylinder Rotary 2 Cylinder Rotary
Oil Charge mL 480土20 480土20
Oil Type ACS-68R or equivalent ACS-68R or equivalent
Coil resistance Ω 1.354 at 20℃1.354 at 20℃
Quantity 1 1
EER / COP
Nominal Cooling capacity (min - max)
Nominal Heating capacity (min - max)
Nominal cooling power input (min - max)
Nominal heating power input (min - max)
Starting current(C/H)
SEER / SCOP
Energy class (SEER/SCOP)
Noise level cooling (sound pressure)
Noise level heating (sound pressure)
Noise level (sound power)
Air flow (Cooling / Heating)
Dimensions (H x W x D)
Weight
Colour (Munsell Code)
Power supply
Recommended fuse size
Running current (C/H)
Condenser Fan
Cable section (power)
Cable section (Interconnection)
Piping diameter (Liq / Gas)
Minimum piping length
Maximum piping length / height difference
Current quantity of refrigerant / Chargeless
Chargeless length / Additional refrigerant
charge
Working range (cooling / heating)
Refrigerant
Compressor
OUTDOOR
°C -10℃~43℃/-15~21℃-10℃~43℃/-15~21℃

230 780
304
347 70
Narrow pipe（ø6.35）
Wide pipe（ø9.52）RAK-18RPD/25RPD/35RPD
Wide pipe（ø12.7）RAK-42RPD/50RPD
73
47 47
5 60
280
5 06
203273
284 284
2.1. WALL TYPE :RAK-18RPD/25RPD/35RPD/42RPD/50RPD
DIMENSIONAL DATA
6
2 DIMENSIONAL DATA

2.2. WALL TYPE :RAC-18WPD/25WPD/35WPD
Handle
Air Suction grill
Air outlet
Handle
Rear side
Holes for anchor bolt
(2 – ø12 x 6 slots for ø8.0 bolt)
(for 2 – ø8.0 bolt)
Notch for anchor bolt
Fixing hole
Drain hole
Drain hole
DIMENSIONAL DATA
7

Unit : mm
600
345
299
202
163.5
589
92
59
792
877
55
57
190
147
12
(11)
Drain hole
Drain hole
Drain hole
2.3. WALL TYPE:RAC-42WPD/50WPD
DIMENSIONAL DATA
8

COOLING [50Hz, 230V]
HEATING [50Hz, 230V]
EWB : Evaporator Wet Bulb temperature (
°
C)
TC : Total Capacity (W)
EDB : Evaporator Dry Bulb temperature (
°
C)
SHC : Sensible Heating Capacity (W)
(
°
CDB) : Outdoor Unit Inlet Air Dry Bulb Temperature (
°
C)
PI : Power Input
3.1.1. RAK-18RPD/RAC-18WPD
EWB EDB -10
°C °C TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI
12.0 18 15811441238179019222821657177433216401765385158016884021480159143214201513448
14.0 20 15811441238192419222821790179233617601765390170017074061580159143615201533457
16.0 22 15811534241205719222861905179234018801765394182017074151700159144416401533461
18.0 25 16951644245219020882892019194034420001921398192018434151800172744817201649465
19.0 27 17521700249226721992932095203234820802018402200019404191880182444818001746465
22.0 30 19431681249251421802932324201434823001998406222019214232000186246518601824490
24.0 32 20761681252268621802972476201435224601998406236019214272080190147819001882507
INDOOR
OUTDOOR TEMPERATURE (°CDW)
21
27
32
35
40
43
INDOOR
OUTDOOR TEMPERATURE (°CDW)
EDB -15 -10 -7 -5 0 7 10 15
°C TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI
16 19758322350900256894825498942510749247156526986083054683
18 19888262363895258493925688832530737248654227115843077656
20 20008202375889260093025868712550725250051927255603100629
22 20138142388883261692126048602570712251449627395363123602
24 20258082400877263291226228482590700252947327535123146575
CAPACITIES TABLE
9
3 CAPACITIES TABLE
3.1. CAPACITY CHARACTERISTIC CURVES
The following charts show the characteristics of outdoor unit capacity, which corresponds with the operating ambient
temperature of outdoor unit.
Conditions:
③Capacity loss due to white frost and defrost operation is not included.①Pipe length / height difference : 5m / 0m
②Indoor fan speed at High mode
OUTDOOR TEMPERATURE (°CDW)

COOLING [50Hz, 230V]
HEATING [50Hz, 230V]
EWB : Evaporator Wet Bulb temperature (
°
C)
TC : Total Capacity (W)
EDB : Evaporator Dry Bulb temperature (
°
C)
SHC : Sensible Heating Capacity (W)
(
°
CDB) : Outdoor Unit Inlet Air Dry Bulb Temperature (
°
C)
PI : Power Input
3.1.2. RAK-25RPD/RAC-25WPD
COOLING [50Hz, 230V]
HEATING [50Hz, 230V]
EWB : Evaporator Wet Bulb temperature (
°
C)
TC : Total Capacity (W)
EDB : Evaporator Dry Bulb temperature (
°
C)
SHC : Sensible Heating Capacity (W)
(
°
CDB) : Outdoor Unit Inlet Air Dry Bulb Temperature (
°
C)
PI : Power Input
3.1.3. RAK-35RPD/RAC-35WPD
EWB EDB -10
°C °C TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI
12.0 18 19761523311223820303702071187443620501866505197517845271850168156517751599587
14.0 20 19761523311240520303702238189444122001866511212518045331975168157119001620598
16.0 22 19761620316257120303742381189444623501866516227518045442125168158220501620604
18.0 25 21191738321273822063792524205045125002030522240019485442250182558721501743609
19.0 27 21901796326283323233842619214845626002132527250020505492350192758722501845609
22.0 30 24291777326314323043842905212845628752112533277520305542500196860923251927642
24.0 32 25951777331335723043893095212846130752112533295020305602600200962623751989664
INDOOR
OUTDOOR TEMPERATURE (°CDW)
21
27
32
35
40
43
EWB EDB -10
°C °C TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI
12.0 18 276717985333133239763329002213747287022028662765210590325901984969248518881007
14.0 20 276717985333367239763331332236755308022028752975213091327651984979266019121026
16.0 22 276719135423600239764233332236764329022028853185213093229751984997287019121035
18.0 25 2967205155038332604650353324207733500239689433602299932315021541007301020571045
19.0 27 3067212055839672743658366725357823640251790335002420941329022751007315021781045
22.0 30 3400209755844002720658406725127824025249391338852396950350023231045325522751101
24.0 32 3633209756747002720667433325127904305249391341302396960364023721073332523471139
INDOOR
OUTDOOR TEMPERATURE (°CDW)
21
27
32
35
40
43
OUTDOOR TEMPERATURE (°CDW)
EDB -15 -10 -7 -5 0 7 10 15
°C TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI
16 24661028309111463457122834361168339610043361802373887743371005
18 248310193108113834791214346111513423985338076837568414369964
20 250010103125112935001200348611333450967340073337758044400923
22 251710013142112035211186351011163477948342069837947684431882
24 25349923159111135431172353510993504929343966438127314463841
EDB -15 -10 -7 -5 0 7 10 15
°C TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI
16 2958114235521298389714053925136140081232415210864510118550721352
18 2979113135731287392313873955133940411208417610434533113951111301
20 3000112035941276395013703986131740751185420010004556109451501250
22 302111093615126539771353401612954109116242249574579104851891199
24 304210983636125440031335404712744142113842489144602100252281148
INDOOR
INDOOR
OUTDOOR TEMPERATURE (°CDW)
CAPACITIES TABLE
10

COOLING [50Hz, 230V]
HEATING [50Hz, 230V]
EWB : Evaporator Wet Bulb temperature (
°
C)
TC : Total Capacity (W)
EDB : Evaporator Dry Bulb temperature (
°
C)
SHC : Sensible Heating Capacity (W)
(
°
CDB) : Outdoor Unit Inlet Air Dry Bulb Temperature (
°
C)
PI : Power Input
3.1.4. RAK-42RPD/RAC-42WPD
COOLING [50Hz, 230V]
HEATING [50Hz, 230V]
EWB : Evaporator Wet Bulb temperature (
°
C)
TC : Total Capacity (W)
EDB : Evaporator Dry Bulb temperature (
°
C)
SHC : Sensible Heating Capacity (W)
(
°
CDB) : Outdoor Unit Inlet Air Dry Bulb Temperature (
°
C)
PI : Power Input
3.1.5. RAK-50RPD/RAC-50WPD
EWB EDB -10
°C °C TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI
12.0 18 3320 2414 635 3760 3219 754 3480 2971 889 3444 2958 1030 3318 2828 1075 3108 2665 1154 2982 2535 1198
14.0 20 3320 2414 635 4040 3219 754 3760 3002 899 3696 2958 1042 3570 2860 1086 3318 2665 1165 3192 2568 1221
16.0 22 3320 2569 645 4320 3219 764 4000 3002 909 3948 2958 1053 3822 2860 1109 3570 2665 1187 3444 2568 1232
18.0 25 3560 2755 655 4600 3498 774 4240 3250 920 4200 3218 1064 4032 3088 1109 3780 2893 1198 3612 2763 1243
19.0 27 3680 2848 665 4760 3683 784 4400 3405 930 4368 3380 1075 4200 3250 1120 3948 3055 1198 3780 2925 1243
22.0 30 4080 2817 665 5280 3652 784 4880 3374 930 4830 3348 1086 4662 3218 1131 4200 3120 1243 3906 3055 1310
24.0 32 4360 2817 675 5640 3652 794 5200 3374 941 5166 3348 1086 4956 3218 1142 4368 3185 1277 3990 3153 1355
INDOOR
OUTDOOR TEMPERATURE (°CDW)
21
27
32
35
40
43
EWB EDB -10
°C °C TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI
12.0 18 3952 2548 834 4476 3397 990 4143 3136 1167 4100 3121 1353 3950 2984 1412 3700 2813 1515 3550 2675 1574
14.0 20 3952 2548 834 4810 3397 990 4476 3169 1181 4400 3121 1368 4250 3018 1427 3950 2813 1530 3800 2710 1603
16.0 22 3952 2711 847 5143 3397 1003 4762 3169 1194 4700 3121 1383 4550 3018 1456 4250 2813 1559 4100 2710 1618
18.0 25 4238 2907 860 5476 3691 1016 5048 3430 1208 5000 3396 1397 4800 3259 1456 4500 3053 1574 4300 2916 1633
19.0 27 4381 3005 873 5667 3887 1029 5238 3593 1222 5200 3567 1412 5000 3430 1471 4700 3224 1574 4500 3087 1633
22.0 30 4857 2973 873 6286 3855 1029 5810 3561 1222 5750 3533 1427 5550 3396 1486 5000 3293 1633 4650 3224 1721
24.0 32 5190 2973 886 6714 3855 1042 6190 3561 1236 6150 3533 1427 5900 3396 1500 5200 3361 1677 4750 3327 1780
INDOOR
OUTDOOR TEMPERATURE (°CDW)
21
27
32
35
40
43
EDB -15 -10 -7 -5 0 7 10 15
°C TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI
16 3940 1833 4753 2046 5224 2193 5313 2122 5554 1920 5931 1688 6422 1823 7189 2052
18 3970 1817 4783 2029 5262 2166 5357 2090 5602 1884 5966 1623 6455 1754 7245 1975
20 4000 1800 4813 2013 5300 2140 5400 2057 5650 1849 6000 1558 6488 1686 7300 1898
22 4030 1783 4843 1996 5338 2114 5444 2024 5698 1814 6035 1493 6521 1617 7356 1821
24 4060 1767 4873 1979 5376 2087 5487 1991 5746 1778 6069 1428 6554 1548 7411 1744
EDB -15 -10 -7 -5 0 7 10 15
°C TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI
16 3646 1656 4146 1806 4432 1912 4550 1843 4864 1649 5338 1420 5641 1516 6100 1679
18 3673 1643 4173 1793 4466 1891 4589 1817 4907 1621 5369 1369 5670 1462 6150 1618
20 3700 1630 4200 1780 4500 1870 4629 1791 4950 1594 5400 1317 5700 1407 6200 1557
22 3727 1617 4227 1767 4534 1849 4668 1765 4993 1566 5431 1265 5730 1352 6250 1496
24 3754 1604 4254 1754 4568 1828 4707 1739 5036 1538 5462 1214 5759 1298 6300 1435
INDOOR
INDOOR OUTDOOR TEMPERATURE (°CDW)
OUTDOOR TEMPERATURE (°CDW)
CAPACITIES TABLE
11

CAPACITIES TABLE
12
3.2. CORRECTION FACTORS ACCORDING TO PIPING LENGTH
Correction Factor for Cooling Capacity according to
Piping Length
The cooling capacity should be corrected according to the
following formula:
CCA = CC x F
CCA: Actual Corrected Cooling Capacity
(kcal/h)
CC: Cooling Capacity in the Performance
Table (kcal/h)
F: Correction Factor Based on the
Equivalent Piping Length
Correction Factor for Heating Capacity according to
Piping Length
The heating capacity should be corrected according to the
following formula:
HCA= HC x F
HCA: Actual Corrected Heating Capacity
(kcal/h)
HC: Heating Capacity in the Performance
Table (kcal/h)
F: Correction Factor Based on the
Equivalent Piping Length
The correction factors are shown in the following figure.
Equivalent Piping Length for:
–One 90º Elbow is 0.5m.
–One 180º Curve is 1.5m.
H: Vertical Distance Between Indoor Unit and Outdoor
L:
Units in Meters
Actual One-Way Piping Length Between Indoor Unit
and Outdoor Unit in Meters
EL: Equivalent Total Distance Between Indoor Unit and
Outdoor Unit in Meters
(Equivalent One-Way Piping Length)
H
L

Models :
Cooling Change Ratio
Heating Change Ratio
Pipe length (m)
Pipe length (m)
Cooling Change Ratio
Heating Change Ratio
Pipe length (m)
Pipe length (m)
CAPACITIES TABLE
13
RAC-18WPD、RAC-25WPD、RAC-35WPD
RAK-18RPD、RAK-25RPD、RAK-35RPD
Models :
RAC-42WPD、RAC-50WPD
RAK-42RPD、RAK-50RPD

CAPACITIES TABLE
14
3.3. CORRECTION FACTORS ACCORDING TO DEFROSTING OPERATION
The heating capacity in the preceding paragraph, excludes the condition of the frost or the defrosting operation period. In
consideration of the frost or the defrosting operation, the heating capacity is corrected by the equation below.
Corrected heating capacity = Defrost Correction factor x unit capacity
OUTDOOR TEMPERATURE (°CDB) -15 -10 -7 -5 0 7 10 15
Correction factor (humidity rate85% RH) 0.95 0.95 0.89 0.85 0.81 1.0 1.0 1.0
Correction Factor
NOTE:
The correction factor is not valid for special conditions such as snowfall or operation in a transitional period.
Heating
capacity
1 cycle
Hour
Defrost max. 12mins
Reduction in
capacity due to white
frost

4 SOUND DATA
The Sound Pressure Level is based on the following conditions:
-
1 meter from the unit front surface and 1 meter from floor level
The above data was measured in an anechoic chamber. Please take into consideration reflected sound of your specific site
Sound Pressure Level (dB)
Octave band main wave length (Hz)
Sound Pressure Level (dB)
Octave band main wave length (Hz)
COOLING
HEATING
4.1. RAC-18WPD
45.1 46.5 44.6 43.0 39.6 35.9
29.9
25.5
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
NC-70
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
63 125 250 500 1000 2000 4000 8000
44.0 45.4 44.3 41.5 38.2 34.3
28.3
23.1
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
NC-70
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
63 125 250 500 1000 2000 4000 8000
SOUND DATA
15

The Sound Pressure Level is based on the following conditions:
-
1 meter from the unit front surface and 1 meter from floor level
The above data was measured in an anechoic chamber. Please take into consideration reflected sound of your specific site
Sound Pressure Level (dB)
Octave band main wave length (Hz)
Sound Pressure Level (dB)
Octave band main wave length (Hz)
COOLING
HEATING
4.2. RAC-25WPD
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
63 125 250 500 1000 2000 4000 8000
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
63 125 250 500 1000 2000 4000 8000
49.1 47.9 46.7 45.8
40.4
36.2
30.1
24.2
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
NC-70
51.4 47.2 46.7 46.4
41.9 38.4
32.1
25.3
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
NC-70
SOUND DATA
16

The Sound Pressure Level is based on the following conditions:
-
1 meter from the unit front surface and 1 meter from floor level
The above data was measured in an anechoic chamber. Please take into consideration reflected sound of your specific site
Sound Pressure Level (dB)
Octave band main wave length (Hz)
Sound Pressure Level (dB)
Octave band main wave length (Hz)
COOLING
HEATING
4.3. RAC-35WPD
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
63 125 250 500 1000 2000 4000 8000
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
63 125 250 500 1000 2000 4000 8000
49.6 46.0 44.7 43.6 40.0
35.8
28.9
21.7
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
NC-70
52.0 48.3 46.9 44.7 42.0 37.9
32.3
26.2
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
NC-70
SOUND DATA
17

The Sound Pressure Level is based on the following conditions:
-
1 meter from the unit front surface and 1 meter from floor level
The above data was measured in an anechoic chamber. Please take into consideration reflected sound of your specific site
Sound Pressure Level (dB)
Octave band main wave length (Hz)
Sound Pressure Level (dB)
Octave band main wave length (Hz)
COOLING
HEATING
4.4. RAC-42WPD
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
63 125 250 500 1000 2000 4000 8000
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
63 125 250 500 1000 2000 4000 8000
51.9 48.9 46.3 45.0 42.0
37.5
30.8
25.7
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
NC-70
50.4 50.0 49.6 47.9 45.5 42.5
35.9
30.0
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
NC-70
SOUND DATA
18