Fujitsu AUU42RCLX Service manual

R410A

4 . CASSETTE TYPE :

AUU42RCLX

D2D_AU021E/03

2007.06.11

4-1. FEATURE

MODELS :
AUU42RCLX / AOU42RLX

FEATURES

Easy maintenance

The control box is easily accessible for maintenance work
Wide opening for easy access.

Detachable,washable filter and intake grille.

Wide opening and long-life filter.

Long-life filter
High efficiency, long-life filter extends the cleaning cycle.

CASSETTE TYPE

AUU42R

Long-life filter

CASSETTE TYPE

AUU42R

Slim intake grille

Slim type intake grille can fit the ceiling after installation.

25/32

(20)

Unit: in.(mm)

Group controller

One remote controller can control up to 16 air conditioners.
All of the air conditioners will be operated with the same settings.

Connectable quantity : Maximum 16 indoor units for 1 remote controller.

- (04 - 01) -

Duct connection hole opening

Fresh air can be introduced through this opening.

Distribution
duct

Fresh air

Distribution
duct

CASSETTE TYPE

CASSETTE TYPE

AUU42R

AUU42R

Conditioned air can be distributed by means of a distribution duct.

Two-way

One-way

- (04 - 02) -

4-2. REMOTE CONTROLLER

4-2-1. WIRED REMOTE CONTROLLER

FEATURES

Various timer setup (ON / OFF / WEEKLY) are possible.

SUMOTUWETH FR SA

AM

7

3126 9

F

15 18 21

High performance and compact size

Equipped with weekly timer as standard function.
(2 times Start / Stop per day for a week)

When setting up a timer, operation mode and a temperature
setup can be changed.

When a failure occurs,the error code is displayed. (Maximum of 16)
Error indication.(A maximum of 16 error histories are memorizable.)

Easy installation with a slim shape with no boldge in the back.

Built in room temperature sensor.

Three functions are combined in
one unit.

CASSETTE TYPE

AUU42R

Wired

remote

controller

Weekly

timer

Setback

timer

CASSETTE TYPE

AUU42R

Built-in timers

Setback timerWeekly timer

Possible to set ON/OFF time to operate twice each day
of the week.

SUMOTUWETH FR SA

7

PM

3126 9

15 18 21

Setup screen example
[Set to Wednesday: AM8:00 to PM8:00,75 °F(24 °C)]

0 3 6 9 12 15 18 21

time O'clock time O'clock

12 3 6 9 12 3 6 9

Easy-to-understand time bar display

SUMOTUWETH FR SA

AM

7

3126 9

F

15 18 21

75°F (24°C)

AM PM

Screen
after setup

At "Weekly timer" + "Set back timer" setup

75°F 82°F 75°F

(24°C 28°C 24°C)

time O'clock

Possible to set temperature for two time spans and
for each day of the week.

SUMOTUWETH FR SA

PM

3126 9

15 18 21

Setup screen example
[Set from Sunday to Saturday: PM12:00 to PM3:00, 82°F(28 °C)]

82°F (28°C)

0 3 6 9 12 15 18 21

12 3 6 9 12 3 6 9

AM PM

75°F (24°C)

82°F (28°C)

0 3 6 9 12 15 18 21

12 3 6 9 12 3 6 9

AM PM

F

Easy-to-understand operation Simple installation

Components are compatible with standard
switch boxes. Flat back construction allows
equipment to be installed wherever it is
needed.

Timer
area

[

Variable timer control

]

The operation/display sections are zoned accord­ing to time and operation, enabling variable pro­gramming to match application.

Operation
area

European
switch box

- (04 - 03) -

JIS box

FUNCTIONS

1

START/STOP button

Pressed to start and stop operation.

2

Display

SUMOTUWETH FR

SA

10

11

12

AM
PM

369

12 15 18 21

2
7
8

9

CLOCK ADJUST

SET BACK

DELETE SET

DAY OFF

F

14

DAY

ENERGY

THERMO

SAVE

SENSOR

1
3

4
6
5

13

Display panel

CASSETTE TYPE

AUU42R

15

SUMOTUWETH FR

AM
PM

369

12 15 18 21

16

1718 19

SA

F

202122 23

Set Temperature button

Selects the setting temperature.

3

Master control button

Selects the operating mode(AUTO, HEAT, FAN, COOL, DRY).

4

Fan control button

Selects the fan speed (AUTO, LOW, MED, HIGH).

5

Energy save button

Turns the energy efficient mode on and off.

6

Thermo sensor button

Selects whether the room temperature is detected at the
indoor unit (remote sensor) or the remote controller.

7

Timer mode (CLOCK ADJUST) button

Selects the timer mode (OFF TIMER, ON TIMER, WEEKLY TIMER)

Set the current time.

8

Day (DAY OFF) button

Temporarily cancels of one day timer.

9

Set back button

pressed select the set back timer.

10

Set time button

Pessed to select the set back timer.

Delete button

11

The schedule of a weekly timer is deleted.

CASSETTE TYPE

AUU42R

SPECIFICATION

12

Set button

Sets the date, hour, minute and on-off time.

13

Vertical air flow direction and swing button

Push for two seconds to change the swing mode

14

Operation lamp

Lights during operation and when the timer is on.

15

Timer and clock display

16

Operation mode display

17

Fan speed display

Central control display

18

19

Temperature display

20

Stand by display
Indicates during defrosting operation.

21

Vertical swing display

22

Energy save display

23

Thermo sensor display

SIZE [H x W x D in. (mm)] 4-23/32 x 4-23/32 x 43/64 (120 x 120 x 17)

WEIGHT oz. (g) 5-21/32 (160)

CABLE LENGTH ft.( m )

POWER ( V )

33 (10)

12

- (04 - 04) -

4-3. SPECIFICATIONS

AUU42RCLX

AOU42RLX

Fin Pitch FPI

Fin Pitch FPI

11 - 21/32 × 32 - 11/16 × 32 - 11/16 (296 × 830 × 830)

50 - 25/32 × 35 - 7/16 × 13 (1290 × 900 × 330)

17 - 29/32 × 41 - 23/32 × 40 - 11/32 (455 × 1060 × 1025)

56 - 5/16 × 41 - 11/32 × 17 - 17/32 (1430 × 1050 × 445)

3/8 (9.52)

5/8 (15.88)

Rows x Stages

INDOOR

OUTDOOR

SEER

HSPF

OUTPUT

Rows x Stages

WIRED

ABS

Outer diameter 37.0 (1 - 15/32)

7lb. 8oz. (3400)

POE

0 to 115 (-18 to 46)

0 to 75 (-18 to 24)

R410A

Aluminium

2 × 60 (22 + 38)

20

49 - 19/32 × 35 - 7/16 × 1 - 7/16 (1260 × 900 × 36.38)

White (5Y9/0.5NN)

Beige (10YR7.5/1.0NN)

FLARE

98(30)

3 × 12

18

9 -29/32 × 38 - 3/16 × 1 - 9/16 (252 × 970 × 39.9) [× 2 pieces]

Copper tube

2500

Inverter

Copper tube

Aluminium

CASSETTE MODELS

INVERTER HEAT PUMP TYPE

208/230V 60Hz

187-253V 60Hz

GROSS

GROSS

---

TURBO × 1

PROPELLER × 2

100

100 × 2

DC SCROLL (INVERTER)

OPERATION(OUTDOOR)

°F(°C)

REMOTE CONTROLLER TYPE

MATERIAL

DRAIN PIPE
SIZE

mm

(Reference in.)

REFRIGERANT
TYPE

REFRIGERANT OIL

TYPE

CASING COLOR

DIMENSIONS
H × W × D

in.(mm)

PIPE

CONNECTION METHOD

SIZE

in.(mm)

MAX LENGTH

MAX HEIGHT

NET

COMPRESSOR

TYPE

STARTING METHOD

HEAT
EXCHANGER
TYPE

INDOOR

Coil

Fin

OUTDOOR

Coil

Fin

FAN TYPE x Q'ty

FAN MOTOR OUTPUT

W

NOISE LEVEL
(SOUND
PRESSURE)

COOL/HEAT

INDOOR

dB(A)

OUTDOOR

FAN SPEED
COOL/HEAT
INDOOR

r.p.m

OUTDOOR

CFM(m3/h)

OUTDOOR

INPUT POWER

kW

CURRENT

A

STARTING CURRENT

MOISTURE REMOVAL

AIR
CIRCULATION
COOL/HEAT

INDOOR

TYPE

MODEL NAME

INDOOR

OUTDOOR

WEIGHT

NET

lb. (kg)

POWER SOURCE

AVAILABLE VOLTAGE RANGE

CAPACITY

COOLING

RATED/MAX

HEATING

RATED/MAX

COOLING RATED/MAX 4.66 / 4.99

HEATING RATED/MAX 4.31 / 4.99

COOLING RATED/MAX 20.3 / 21.7

HEATING RATED/MAX 18.8 / 21.7

COOLING 15.0

HEATING 8.5

High 1000 (1700) / 1000 (1700)

Med 853 (1450) / 853 (1450)

Low 736 (1250) / 736 (1250)

Quiet

High 3884 (6600) / 3884 (6600)

Low -

High 650 / 650

Med 610 / 610

Low 530 / 530

CASSETTE TYPE

AUU42R

Quiet

High UPPER FAN:850 LOWER FAN:750

Low

INDOOR

OUTDOOR

INDOOR

OUTDOOR

High 50.0 / 50.0

Med 48.0 / 48.0

Low 44.0 / 44.0

kW 12.5 / 13.1

BTU/h 42,700 / 45,000

kW 13.3 / 16.0

BTU/h 45,200 / 54,600

A 15.0

pints/h(l/h) 11.6 (5.5)

55.0 / 56.0

CASSETTE TYPE

AUU42R

W

Coil Dimensions in.(mm)

Coil Dimensions in.(mm)

INDOOR

OUTDOOR

INDOOR

OUTDOOR

INDOOR 88(40)

OUTDOOR 231(105)

INDOOR 121(55)

OUTDOOR 247(112)

LIQUID

GAS

ft. (m)

230(70) [chargeless:66 (20)]

ft. (m)

CHARGE

COOLING

HEATING

lb. oz. (g)

Note :

Specifications are based on the following conditions.
Power source of specifications : 230V
Cooling : Indoor temperature of 80.6°F(27°C)DB / 66.2°F(19°C)WB,and outdoor temperature of 95.0°F(35°C)DB/75.2°F(24°C)WB.
Heating : Indoor temperature of 68.0°F(20°C)DB / 59.0°F(15°C)WB,and outdoor temperature of 44.6°F(7°C)DB/42.8°F(6°C)WB.

Pipe length : 24ft. 7in.(7.5m),Height difference : 0 ft.(0m) [Outdoor unit - Indoor unit]

Inner diameter 32.0 (1 - 1/4)

- (04 - 05) -

4-4. DIMENSIONS

4-4-1. OUTDOOR UNIT

MODEL : AOU42R

Unit : in.(mm)

Top view

35-7/16 (900)

CASSETTE TYPE

AUU42R

50-25/32 (1290)

3-1/32

(77)

1-7/32

(31)

13 (330)

15/32

(12)

CASSETTE TYPE

AUU42R

(21)

13/16

14-7/8 (370)

Drain cap
mounting places

MOUNTING POSITION

When there are
obstacles at the
back or front side.

When there are obstacles
at the back and front sides.

(9)

11/32

Front view

25-19/32 (650)

Air flow

Drain cap
mounting place

Bottom view

15-3/4 (400)

Side view

4-Ø15/32 (12) hole

When there are obstacles at
the back, side(s), and top.

3-29/32 (99)

5-15/16 (151)

6-11/16 (170)

(196)

7-23/32

When there are obstacles
at the back side with the
installation of more than
one unit.

3-15/16 (100)
or more

23-5/8 (600)
or more

3-15/16 to 11-13/16

- (04 - 06) -

3-15/16 (100)
or more

(100 to 300)

23-5/8 to 39-3/8

(600 to 1000)

9-27/32 (250)

or more

250)
pac

or

m

e)

11-13/16 (300)
or more

ore

9-

27

(

Ser

/3

2(

v

i

c

e s

*If the space is larger than that is stated, the

condition will be the same as that there are no
obstacles.

9-27/32 (250)

or more

11-13/16
(300) or more

4-4-2. INDOOR UNIT

MODEL : AUU42R

1-3/16

(30)

Unit : in.(mm)

(296)

11-21/32

Side view

37 (940)

CASSETTE TYPE

CASSETTE TYPE

AUU42R

32-11/16 (830)

29-17/32 (750)

AUU42R

37 (940)

Bottom view (Panel)

Drain Inside Dia. 32mm

Dia. 37mmOutside

Side view (Standard setting)

29-17/32 (750)

32-11/16 (830)

Bottom view

11-3/4 (298.5)

12-1/32

(305.5)

(285)

11-7/32

2-3/8 (60)

(Drain pipe)

9-25/32

(248.5)

4-23/32 (120)

(Small pipe)

(Large pipe)

5-29/32 (150)

(250)

9-27/32

Side view (Slender setting)

- (04 - 07) -

MOUNTING POSITION

Floor

Strong and durable ceiling

Unit : in.(mm)

96 (2,400)

or more

47-1/4 (1,200)

or more

39-3/8 (1,000)

or more

Obstruction

CASSETTE TYPE

CASSETTE TYPE

AUU42R

You can select 2-way setting

(A) Standard setting (B) Slender setting

or more

11-13/16 (300)

3-15/16 (100)

or more

3-15/16 (100)

or more

or more

10-7/16 (265)

3-15/16 (100) or more

AUU42R

(4 directions) (3 directions)

Piping position

(2 directions) (2 directions)

3-15/16 (100)

or more

- (04 - 08) -

4-5. REFRIGERANT CIRCUIT

MODELS : AUU42R / AOU42R

CASSETTE TYPE

CASSETTE TYPE

AUU42R

AUU42R

- (04 - 09) -

4-6. WIRING DIAGRAMS

4-6-1. OUTDOOR UNIT

MODEL : AOU42R

TEMP.

TEMP.

TEMP.

TEMP.

TEMP.

CASSETTE TYPE

CASSETTE TYPE

AUU42R

G G

AUU42R

- (04 - 10) -

TO INDOOR UNIT

TO POWER SUPPLY

4-6-2. INDOOR UNIT

MODEL : AUU42R

CASSETTE TYPE

AUU42R

CASSETTE TYPE

AUU42R

G

(N)

- (04 - 11) -

4-7. CAPACITY TABLE

67°FWB

Outdoor temperature

54°FWB

60°FWB

63°FWB

64°FDB

70°FDB

75°FDB

71°FWB

73°FWB

90°FDB

80°FDB

85°FDB

Indoor temperature

(°CDB)

TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI

29.44°CDB

23.89°CDB

21.11°CDB

26.67°CDB

21.67°CWB

Outdoor temperature

15.56°CWB

17.72°CWB

19.44°CWB

Indoor temperature

17.78°CDB

12.22°CWB

32.22°CDB

22.78°CWB

MODELS : AUU42R / AOU42R

COOLING

AFR 1000

(°FDB)

104

115

CASSETTE TYPE

AUU42R

AFR: Air flow rate(CFM) TC : Total capacity (kBTU)

AFR 28.3

-17.78

-10.00

0.00

5.00

10.00

15.00

19.44

25.00

30.56

35.00

40.00

46.11

AFR: Air flow rate(m3/min)

TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI

0

38.85 26.16 2.21 43.82 26.32 2.24 46.29 28.84 2.26

14

38.32 25.77 2.34 43.22 25.93 2.38 45.66 28.41 2.40

32

36.52 24.64 2.67 41.19 24.79 2.71 43.51 27.16 2.73

41

34.15 23.43 2.86 38.51 23.57 2.91 40.68 25.83 2.94

50

33.43 22.83 3.25 37.71 22.97 3.31 39.84 25.16 3.34

59

40.95 26.97 4.26 46.19 27.13 4.34 48.80 29.73 4.37

67

42.53 28.19 3.89 47.97 28.36 3.96 50.67 31.07 3.99

77

39.64 26.27 4.25 44.71 26.43 4.33 47.23 28.96 4.36

87

36.92 24.84 4.62 41.65 25.00 4.70 43.99 27.39 4.74

95

35.25 23.75 4.81 39.76 23.90 4.89 42.00 26.18 4.93

31.20 21.97 4.81 35.19 22.11 4.89 37.17 24.22 4.93

19.61 16.63 2.91 22.12 16.73 2.96 23.36 18.33 2.99

SHC: Sensible Heat capacity (kBTU) PI : Power Input (kW)

11.38 7.66 2.21 12.83 7.71 2.24 13.56 8.45 2.26 14.53 8.84 2.29 15.50 9.13 2.31 15.98 10.12 2.33

11.22 7.55 2.34 12.66 7.59 2.38 13.37 8.32 2.40 14.33 8.71 2.43 15.29 8.99 2.45 15.76 9.96 2.47

10.70 7.22 2.67 12.06 7.26 2.71 12.74 7.95 2.73 13.65 8.32 2.77 14.57 8.60 2.80 15.02 9.53 2.81

10.00 6.86 2.86 11.28 6.90 2.91 11.92 7.57 2.94 12.77 7.92 2.97 13.62 8.17 3.00 14.05 9.06 3.02

9.79 6.69 3.25 11.05 6.73 3.31 11.67 7.37 3.34 12.50 7.71 3.37 13.34 7.96 3.41 13.75 8.83 3.43

12.00 7.90 4.26 13.53 7.95 4.34 14.29 8.71 4.37 15.31 9.11 4.42 16.34 9.41 4.47 16.85 10.43 4.50

12.46 8.26 3.89 14.05 8.31 3.96 14.84 9.10 3.99 15.90 9.52 4.04 16.96 9.83 4.08 17.49 10.90 4.10

11.61 7.69 4.25 13.09 7.74 4.33 13.83 8.48 4.36 14.82 8.87 4.41 15.81 9.16 4.46 16.30 10.16 4.49

10.81 7.28 4.62 12.20 7.32 4.70 12.89 8.02 4.74 13.81 8.39 4.80 14.73 8.67 4.85 15.19 9.61 4.88

10.33 6.96 4.81 11.65 7.00 4.89 12.30 7.67 4.93 13.10 8.02 4.99 14.06 8.29 5.05 14.50 9.18 5.07

9.14 6.44 4.81 10.31 6.47 4.89 10.89 7.09 4.93 11.67 7.42 4.99 12.45 7.67 5.05 12.83 8.50 5.07

5.74 4.87 2.91 6.48 4.90 2.96 6.84 5.37 2.99 7.33 5.62 3.02 7.82 5.80 3.06 8.07 6.43 3.07

TC : Total capacity (kW) SHC: Sensible Heat capacity (kW) PI : Power Input (kW)

30.17 2.29 52.91 31.16 2.31 54.56 34.54 2.33

49.59

29.72 2.43 52.19 30.70 2.45 53.82 34.02 2.47

48.92

28.41 2.77 49.74 29.35 2.80 51.29 32.52 2.81

46.62

27.02 2.97 46.50 27.91 3.00 47.95 30.93 3.02

43.59

26.33 3.37 45.53 27.19 3.41 46.95 30.14 3.43

42.68

31.10 4.42 55.78 32.12 4.47 57.52 35.60 4.50

52.28

32.51 4.04 57.92 33.58 4.08 59.73 37.21 4.10

54.29

30.29 4.41 53.98 31.29 4.46 55.67 34.68 4.49

50.60

28.65 4.80 50.29 29.59 4.85 51.86 32.80 4.88

47.13

27.39 4.99 48.01 28.29 5.05 49.51 31.36 5.07

45.00

25.34 4.99 42.49 26.17 5.05 43.82 29.01 5.07

39.83

19.18 3.02 26.70 19.81 3.06 27.54 21.96 3.07

25.03

CASSETTE TYPE

AUU42R

- (04 - 12) -

HEATING

Indoor temperature

75°FDB

65°FDB

70°FDB

Outdoor temperature

60°FDB

78°FDB

Indoor temperature

25.56°CDB

15.56°CDB

18.33°CDB

21.11°CDB

23.89°CDB

Outdoor temperature

AFR 1000

(°FDB) (°FWB)

0 -1 36.33 4.71 35.15 4.85 33.97 4.99 32.79 5.13 32.08 5.21

14 12 42.97 4.71 41.58 4.85 40.19 4.99 38.79 5.13 37.95 5.21

23 19 48.12 4.71 46.56 4.85 45.00 4.99 43.44 5.13 42.50 5.21

32 28 52.72 4.71 51.01 4.85 49.30 4.99 47.59 5.13 46.56 5.21

41 37 54.98 4.71 53.20 4.85 51.42 4.99 49.63 5.13 48.56 5.21

47 43 58.39 4.71 56.50 4.85 54.60 4.99 52.70 5.13 51.56 5.21

50 47 60.13 4.71 58.19 4.85 56.23 4.99 54.28 5.13 53.10 5.21

59 50 63.64 4.71 61.58 4.85 59.51 4.99 57.44 5.13 56.20 5.21

68 59 62.76 4.71 60.73 4.85 58.69 4.99 56.65 5.13 55.43 5.21

75 65 65.24 4.71 63.13 4.85 61.01 4.99 58.89 5.13 57.62 5.21

AFR: Air flow rate(CFM) TC : Total capacity (kBTU)

CASSETTE TYPE

AUU42R

AFR 28.3

(°CDB) (°CWB)

-17.78 -18.33 10.64 4.71 10.30 4.85 9.95 4.99 9.60 5.13 9.40 5.21

-10.00 -11.11 12.59 4.71 12.18 4.85 11.77 4.99 11.36 5.13 11.12 5.21

-5.00 -7.22 14.09 4.71 13.64 4.85 13.18 4.99 12.72 5.13 12.45 5.21

0.00 -2.22 15.44 4.71 14.94 4.85 14.44 4.99 13.94 5.13 13.64 5.21

5.00 2.78 16.10 4.71 15.58 4.85 15.06 4.99 14.54 5.13 14.22 5.21

8.33 6.11 17.10 4.71 16.55 4.85 16.00 4.99 15.44 5.13 15.10 5.21

10.00 8.33 17.61 4.71 17.04 4.85 16.47 4.99 15.90 5.13 15.55 5.21

15.00 10.00 18.64 4.71 18.04 4.85 17.43 4.99 16.82 5.13 16.46 5.21

20.00 15.00 18.38 4.71 17.79 4.85 17.19 4.99 16.59 5.13 16.23 5.21

23.89 18.33 19.11 4.71 18.49 4.85 17.87 4.99 17.25 5.13 16.88 5.21

AFR: Air flow rate(m3/min)

TC PI TC PI TC PI TC PI TC PI

PI : Power Input (kW)

TC PI TC PI TC PI TC PI TC PI

TC : Total capacity (kW)

PI : Power Input (kW)

CASSETTE TYPE

AUU42R

- (04 - 13) -

4-8. CAPACITY COMPENSATION FOR PIPE LENGTH

-5m -16 ft. 0.992 0.992 0.977 0.932 0.900 0.873 0.851 0.830 0.811

COOLING

Outdoor unit

is up-side

PIPE LENGTH

HEIGHT DIFFERENCE

Outdoor unit

is bottom-side

-5m -16 ft. 1.000 1.000 0.990 0.968 0.952 0.940 0.927 0.914 0.901

PIPE LENGTH

Outdoor unit is

bottom-side

Outdoor unit is

up-side

HEIGHT DIFFERENCE

 AND HEIGHT DIFFERENCE

MODELS : AUU42R / AOU42R

5 m 7.5 m 10 m 20 m 30 m 40 m 50 m 60 m 70 m

16 ft. 25 ft. 33 ft. 66 ft. 98 ft. 131 ft. 164 ft. 197 ft. 230 ft.

30m 98 ft. - - - - 0.907 0.880 0.858 0.837 0.817

20m 66 ft. - - - 0.940 0.907 0.880 0.858 0.837 0.817

10m 33 ft. - - 0.985 0.940 0.907 0.880 0.858 0.837 0.817

7.5m 25 ft. - 1.000 0.985 0.940 0.907 0.880 0.858 0.837 0.817

5m 16 ft. 1.000 1.000 0.985 0.940 0.907 0.880 0.858 0.837 0.817

0m 0 ft. 1.000 1.000 0.985 0.940 0.907 0.880 0.858 0.837 0.817

-7.5m -25 ft. - 0.988 0.973 0.929 0.896 0.869 0.847 0.827 0.808

-10m -33 ft. - - 0.969 0.925 0.892 0.866 0.844 0.823 0.804

-20m -66 ft. - - - 0.910 0.878 0.852 0.830 0.810 0.791

-30m -98 ft. - - - - 0.863 0.838 0.817 0.797 0.778

CASSETTE TYPE

CASSETTE TYPE

AUU42R

HEATING

30m 98 ft. - - - - 0.923 0.912 0.899 0.886 0.874

20m 66 ft. - - - 0.949 0.933 0.921 0.908 0.896 0.883

10m 33 ft. - - 0.980 0.958 0.942 0.931 0.917 0.905 0.892

7.5m 25 ft. 0.993 0.983 0.961 0.945 0.933 0.920 0.907 0.894

5m 16 ft. 0.995 0.995 0.985 0.963 0.947 0.936 0.922 0.909 0.896

0m 0 ft. 1.000 1.000 0.990 0.968 0.952 0.940 0.927 0.914 0.901

-7.5m -25 ft. - 1.000 0.990 0.968 0.952 0.940 0.927 0.914 0.901

-10m -33 ft. - - 0.990 0.968 0.952 0.940 0.927 0.914 0.901

-20m -66 ft. - - - 0.968 0.952 0.940 0.927 0.914 0.901

-30m -98 ft. - - - - 0.952 0.940 0.927 0.914 0.901

5 m 7.5 m 10 m 20 m 30 m 40 m 50 m 60 m 70 m

16 ft. 25 ft. 33 ft. 66 ft. 98 ft. 131 ft. 164 ft. 197 ft. 230 ft.

AUU42R

- (04 - 14) -

4-9. ADDITIONAL CHARGE CALCULATION

66 98 131 164 197 230 (MAX)

20 30 40 50 60 70 (MAX)

ADDITIONAL CHARGE

PIPE LENGTH

0.43 oz./ft.
40g/m

R410A

7 lb. 8 oz. (3400)

MODELS : AUU42R / AOU42R

REFRIGERANT TYPE

REFRIGERANT AMOUNT lb. oz. (g)

REFRIGERANT CHARGE

ft.

m

lb. oz. 0 (Chargeless) 13.8 oz. 1 lb. 12.0 oz. 2 lb. 10.1 oz. 3 lb. 8.3 oz. 4 lb. 6.5 oz.

g 0 (Chargeless) 400 800 1200 1600 2000

CASSETTE TYPE

CASSETTE TYPE

AUU42R

AUU42R

- (04 - 15) -

4-10. OPERATION RANGE

Cooling

Dry

64 to 88°F

(18 to 31°C)

0 to 115 °F

(-18 to 46°C)

60 to 88 °F

(16 to 31°C)

0 to 75 °F

(-18 to 24°C)

AUU42R

AOU42R

Model

Mode

Operation Range

Indoor unit Outdoor unit Indoor temperature Indoor humidity Outdoor temperature

About 80% or less

Heating

CASSETTE TYPE

AUU42R

-

CASSETTE TYPE

AUU42R

- (04 - 16) -

4-11. FAN PERFORMANCE AND AIR FLOW

4-11-1. AIR VELOCITY DISTRIBUTION

MODEL : AUU42R

4-WAY AIR OUTLET

(ft.)(m)

10 3

7 2

3 1

2(0.5)

(1)

(2)

3

7

13/16(0.25)

UNIT : ft./s(m/s)

Note :

Condition

Fan speed : High
Operation mode :FAN

CASSETTE TYPE

0 0

3 1

7 2

10 3

AUU42R

(ft.)(m)

7 2

3 1

0 0

(ft.)(m)

7 2

13/16(0.25)

7(2)

(2)

2(0.5)

(1)

7(2)

7

3

3(1)3(1)

13/16(0.25)

2(0.5)2(0.5)

8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8
  20  14  7  0  7  14  20 26

26

UNIT : ft./s(m/s)

7(2)

13/16(0.25)

3(1)

2(0.5)

7(2)

13/16(0.25)

3(1)

2(0.5)

8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8
  20  14  7  0  7  14  20 26

26

UNIT : ft./s(m/s)

7

(2)

7

(2)

13/16(0.25)

TOP VIEW
HORIZONTAL LOUVER
 : Upward

(m)
(ft.)

SIDE VIEW
HORIZONTAL LOUVER
 : Upward

(m)
(ft.)

CASSETTE TYPE

AUU42R

3 1

0 0

13/16(0.25)

 2 1 0 1 2

2

(0.5)

3

(1)

 7 3 0 3 7

2-WAY AIR OUTLET

(ft.)(m)

3 1

0 0

3 1

(ft.)(m)

7 2

3 1

0 0

13/16(0.25)

2(0.5)

8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8
  20  14  7  0  7  14  20 26

26

13/16(0.25)

2(0.5) 2(0.5)

8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8
  20  14  7  0  7  14  20 26

26

3

(1)

2

(0.5)

13/16(0.25)

SIDE VIEW
HORIZONTAL LOUVER
 : Downward

(m)
(ft.)

3(1)

3(1) 3(1)

7(2)

7(2) 7(2)

7(2)

3(1)

UNIT : ft./s(m/s)

13/16(0.25)

2(0.5)

TOP VIEW
HORIZONTAL LOUVER
 : Upward

(m)
(ft.)

UNIT : ft./s(m/s)

13/16(0.25)

SIDE VIEW
HORIZONTAL LOUVER
 : Upward

(m)
(ft.)

- (04 - 17) -

4-11-2. AIR FLOW

m3/h

1700

m3/h

1450

m3/h

1250

LOW

650

610

530

FAN SPEED

NUMBER OF

ROTATIONS

(r.p.m)

AIR FLOW

Outdoor unit

HIGH

CFM

Lower fan

Indoor unit

HIGH

MED

3884

Upper fan

850

m3/h

6600

l/s

1833

750

MODELS : AUU42R / AOU42R

CASSETTE TYPE

AUU42R

l/s 472

CFM 1000

l/s 403

CFM 853

l/s 347

CFM 736

CASSETTE TYPE

AUU42R

- (04 - 18) -

4-11-3. DUCT CONNECTION

MODEL : AUU42R

OUTLET AIR

in.WG (Pa)

Duct
[(Inside Dia. 3-15/16" (100mm)]

L

0.4 98

0.2 49

0 0

 0 1 2 3 4 5
 0 35 70 105 140 175

*(1)

*(2)

*(3)

(mmAq) in.Ag

10

13/32

8

5/16

6

1/4

4

5/32

2

3/32

0

0

3

(m

/min)

ft.3/min

Duct
[(Inside Dia. 3-15/16" (100mm)]

CASSETTE TYPE

AUU42R

L

in.WG (Pa)

0.4 98

0.2 49

DUCT STATIC PRESSURE DUCT STATIC PRESSUREDUCT STATIC PRESSURE

0 0

 0 1 2 3 4 5
 0 35 70 105 140 175

(mmAq) in.Ag

*(1)

*(2)

*(3)

10

13/32

8

5/16

6

4

5/32

2

3/32

0

(m3/min)

ft.

1/4

0

3

/min

CASSETTE TYPE

AUU42R

*(1) L=16' 4-27/32" (5m)
*(2) L=9' 10-1/8" (3m)
*(3) L=3' 3-3/8" (1m)

FRESH AIR

(mmAq) in.Ag

7

6 1/4

5

Duct
[(Inside Dia. 2-3/4" (70mm)]

in.WG (Pa)

0.24 58.8

P

Static pressure required
to take in fresh air

Duct Fan

0.16 39.2

0.08 19.6

 0 0

 0 0.1 0.2 0.3 0.4 0.5 0.6
 0 4 7 11 14 18 21

- (04 - 19) -

4

3

2

1

0

(m3/min)

ft.3/min

5/32

3/32

0

4-12. NOISE LEVEL CURVE

4-12-1. OUTDOOR UNIT

COOLING

MODEL : AOU42R

80

70

µbar)

60

50

40

30

Octave-band sound-pressure level dB : (0dB=0.0002

CASSETTE TYPE

AUU42R

20

10

NC-65

NC-60

NC-55

NC-50

NC-45

NC-40

NC-35

NC-30

NC-25

NC-20

NC-15

HEATING

MODEL : AOU42R

80

70

µbar)

60

50

40

30

Octave-band sound-pressure level dB : (0dB=0.0002

20

10

NC-65

NC-60

NC-55

NC-50

NC-45

NC-40

NC-35

NC-30

NC-25

NC-20

NC-15

CASSETTE TYPE

AUU42R

0

63 125 250 500 1,000 2,000 4,000 8,000 63 125 250 500 1,000 2,000 4,000 8,000

Octave-band limiting frequency, Hz

0

Octave-band limiting frequency, Hz

- (04 - 20) -

SOUND LEVEL CHECK POINT

3ft. 3-3/8in. (1m)

CASSETTE TYPE

CASSETTE TYPE

AUU42R

AUU42R

- (04 - 21) -

4-12-2. INDOOR UNIT

HIGH

LOW

HIGH

LOW

COOLING

MODEL : AUU42R

80

70

µbar)

60

50

40

30

Octave-band sound-pressure level dB : (0dB=0.0002

CASSETTE TYPE

AUU42R

20

10

NC-65

NC-60

NC-55

NC-50

NC-45

NC-40

NC-35

NC-30

NC-25

NC-20

NC-15

HEATING

MODEL : AUU42R

80

70

µbar)

60

50

40

30

Octave-band sound-pressure level dB : (0dB=0.0002

20

10

NC-65

NC-60

NC-55

NC-50

NC-45

NC-40

NC-35

NC-30

NC-25

NC-20

NC-15

CASSETTE TYPE

AUU42R

0

63 125 250 500 1,000 2,000 4,000 8,000 63 125 250 500 1,000 2,000 4,000 8,000

Octave-band limiting frequency, Hz

0

Octave-band limiting frequency, Hz

- (04 - 22) -

SOUND LEVEL CHECK POINT

MIC

// //

CENTER

CASSETTE TYPE

CASSETTE TYPE

AUU42R

AUU42R

4ft. 11-1/16in.(1.5m)

MIC

// //

CENTER

- (04 - 23) -

4-13. ELECTRIC CHARACTERISTICS

Main Fuse (Circuit breaker)
Current

60

AUU42R

AOU42R

10

Rated Value

Mode

*1) Wiring Spec.

15

30

Starting Current

0.26 × 2

0.3

1.3

Model Name

Outdoor Fan Motor

0.067 × 2

93

Indoor Fan Motor

Power Supply

230

MODELS : AUU42R / AOU42R

Indoor unit

Outdoor unit

Voltage V

Frequency Hz

Current A 20.3 18.8

Input kW 4.66 4.31

Max Operating Current A 21.7 21.7

Power Cable AWG

*2)Limited wiring length ft.

Cooling Heating

A

A

CASSETTE TYPE

AUU42R

Input kW

CASSETTE TYPE

AUU42R

Full Load Amp. A

Input kW

Full Load Amp. A

*1) Wiring Spec. : Selected Sample

(Selected based on Japan Electrotechnical Standard and Codes Committee E0005)

*2) Limited Wiring length : This is the wiring length in case voltage descent is less than 2%.

When the wiring length becomes long, please select the wiring of a more
larger diameter.

- (04 - 24) -

4-14. SAFETY DEVICE

PROTECTION FORM

OFF : 257°F

ON : 176°F

OFF : 125°C

ON : 80°C

OFF : 609±15 PSI

ON : 464 ±22 PSI

OFF : 4.2±0.1MPa
ON : 3.2±0.15MPa

AOU42R

3.15A 250V

FUSE ON MAIN PCB

CURRENT FUSE

5A 250V

PROTECTION FORM

AUU42R

3.15A 250V

OUTDOOR UNIT

FAN MOTOR PROTECTION THERMAL PROTECTOR 302±9°F 105±5°C

COMPRESSOR PROTECTION THERMAL PROTECTOR

HIGH PRESSURE PROTECTION PRESSURE SWITCH

INDOOR UNIT

PCB FUSE CURRENT FUSE

CASSETTE TYPE

AUU42R

FAN MOTOR PROTECTION THERMAL PROTECTOR 302±9°F 105±5°C

CASSETTE TYPE

AUU42R

- (04 - 25) -

4-15. FUNCTION SETTING

Auto restart validity/invalidity

Room temperature correct coefficient

Room temperature correct coefficient

Forbidden

Indoor unit number setting

Forbidden

Forbidden

Forbidden

Ceiling height setting

INDOOR UNIT

DIP SW

3

1

JM3

Jumper Wire

2

3

JM1

JM2

Rotary SW

SW 2

SW 1

SW 4

1

2

4-15-1. INDOOR UNIT

SWITCH POSITION

CASSETTE TYPE

AUU42R

Indoor unit control circuit board

CASSETTE TYPE

AUU42R

- (04 - 26) -

4-15-2. SWITCH FUNCTION (INDOOR UNIT)

SW 1-1

SW state

OFF

Invalidity

ON

Validity

cooling

SW 1-2

SW 1-3

heating

dryONONONOFF

OFF

OFF

SW state

OFF

ON

SW 4-1

OFF

3

OFF

-

ON

Normal

High ceiling 1

High ceiling 2

Low ceiling

-ONON-OFF

-

ON

OFF

OFF

Ceiling height ft. (m)

DIP - SW4

1

2

DIP SWITCH SETTING

SW1-1. Auto restart setting

Auto restart function can be selected by turning this switch ON/OFF.

AUTO RESTART SETTING

( Factory setting)

SW1-2, 1-3. Room temperature correct coefficient of heating.

Decide the heating temperature correct coefficient value of heating.

TEMPERATURE CORRECTION

( Factory setting)

CASSETTE TYPE

AUU42R

-3.6degF

-3.6degF+3.6degF

CASSETTE TYPE

AUU42R

-3.6degF -3.6degF

0 degF

-3.6degF

0 degF

+7.2degF

SW4-1. Dip SW 4-1setting forbidden

( Factory setting)

SW4-2, 4-3. Ceiling height setting

8ft. 2-7/16in. to 9ft. 10-1/8in. (2.5 to 3.0)

9ft. 10-1/8in. to 11ft. 5-25/32in. (3.0 to 3.5)

More than 11ft. 5-25/32in. (3.5)

Less than 8ft. 2-7/16in. (2.5)

0 degF

0 degF 0 degF

( Factory setting)

If the setting for a low ceiling is selected, the capacity of the air
conditioner decreases slightly.

- (04 - 27) -

ROTARY SWITCH SETTING (SW2)

0

Single

1 - 15

Indoor unit address

SW 2

SW state

SW state

JM 1, 2, 3

Connect

Disconnect

Forbidden

This switch can be used when group control system.
Set the indoor unit address in the 0,1,-,15 order.

( Factory setting)

JUMPER WIRE SETTING

JM 1, 2, 3 setting forbidden

( Factory setting)

CASSETTE TYPE

CASSETTE TYPE

AUU42R

AUU42R

- (04 - 28) -

4-15-3. WIRED REMOTE CONTROLLER CIRCUIT BOARD

Wired remote controller

1

Dual remote controller setting

2

Group control setting

DIP SW

SWITCH POSITION

Wired remote controller

Front case (back side)

CASSETTE TYPE

AUU42R

3

4

Model setting

Auto changeover setting

5

6

Memory backup setting

CASSETTE TYPE

AUU42R

DIP Switch

OFF

ON

1
2
3
4
5
6

ON

- (04 - 29) -

4-15-4. WIRED REMOTE CONTROLLER

DIP SWITCH SETTING

1. SW setting

1-1 Dual remote controller setting

Set the remote controller DIP switch No.1 and 2 according to the following table.

( Factory setting)

Number of
remote
controller

1 (Normal)

2 (Dual)

1-2 Group control setting

Number of indoor unit connection (One/Multiple)
This is switched according to the number of connected indoor units.

CASSETTE TYPE

AUU42R

DIP-SW
No.3

OFF

Master unit Slave unit

DIP-SW
No.1

DIP-SW
No.2

ON

OFF

( Factory setting)

Number of indoor unit

One unit connection

OFF

OFF

DIP-SW
No.1

ON ON

DIP-SW
No.2

CASSETTE TYPE

AUU42R

ON Multiple unit connection

1-3 Model setting

The system type of the outdoor unit can be selected by setting up DIP switch No.4 as follows.

( Factory setting)

DIP-SW
No.4

OFF

ON Cooling only model

Heat Pump model

Model

1-4 Auto changeover setting

Selecting auto changeover validity / invalidity.

( Factory setting)

DIP-SW
No.5

OFF

ON Validity

Auto changeover

Invalidity

1-5 Memory backup setting

Set to ON to use batteries for the memory backup. If batteries are not used,
all of the settings stored in memory will be deleted if there is a power failure.

This function is wired remotecontroll only.

( Factory setting)

DIP-SW
No.6

OFF

ON Validity

Memory backup

Invalidity

- (04 - 30) -

4-16. OPTIONAL PARTS

ADDITIONAL GRILLE
UTG-AGEA-W

The additional grille hides the gap between the ceiling hole
and the outlet grille.

Additional grille (optional parts)

Additonal grille

CASSETTE TYPE

AUU42R

The ceiling hole

Indoor Unit(grille)

CASSETTE TYPE

AUU42R

- (04 - 31) -