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English

4

Watch your steps at the time of air filter 
cleaning or inspection.

High-place work is required, to which utmost 
attention must be paid.
If the scaffold is unstable, you may fall or topple 
down, thus causing injury.

If the temperature or the humidity is beyond the fol-
lowing conditions, safety devices may work and the 
air conditioner may not operate, or sometimes, 
water may drop from the indoor unit.

COOLING

HEATING

DB: Dry bulb temperature (°C)
WB: Wet bulb temperature (°C)
The setting temperature range of the remote con-
troller is 16

°

C to 32

°

C.

The numerical value in a parenthesis shows the 
operation range of the model for Australia.

„

 

Tips for saving energy

• Be careful not to cool (heat) the room too much.

Keeping the temperature setting at a moderate 
level helps save energy.

• Cover windows with a blind or a curtain.

Blocking sunlight and air from outdoors increases 
the cooling (heating) effect.

Regarding places for installation

• Is the air conditioner installed at a well-venti-

lated place where there are no obstacles 
around?

• Do not use the air conditioner in the following 

places.

a. Filled with much mineral oil such as cutting oil
b. Where there is much salt such as a beach
    area
c. Where sulfured gas exists such as a hot-spring 
    resort.
d. Where there are considerable voltage 
    fluctuations such as a factory or  plant
e. Vehicles and vessels
 f. Where there is much spray of oil and vapor
    such as a cookery, etc.
g. Where there are machines generating
    electromagnetic waves.
h. Filled with acid and/or alkaline steam or vapor

• Is a snow protection measure taken?

    For details, consult your dealer.

Regarding wiring

• All wiring must be performed by an autho-

rized electrician.

    To do wiring, ask your dealer. Never do it by
    yourself.

• Make sure that a separate power supply circuit 

is provided for this air conditioner and that all 
electrical work is carried out by qualified per-
sonnel according to local laws and regulations.

Pay attention to running noises, too

• Are the following places selected?

a. A place that can sufficiently withstand the
    weight of the air conditioner with less running
    noises and vibrations.
b. A place where the hot wind discharged from
    the air outlet of outdoor unit and the running
    noises.

• Are you sure that there are no obstacles near 

the air outlet of the outdoor unit?

Such obstacles may result in declined perfor-
mance and increased running noises.

• If abnormal noises occur in use, stop the 

operation of the air conditioner, and then con-
sult your dealer or our service station.

Regarding drainage of drain piping

• Is the drain piping executed to perform com-

plete drainage?

If proper drainage is not carried out from the out-
door drain pipes during air-conditioning opera-
tion, chances are that dust and dirt are clogged 
in  the pipe. This may result in a water leakage 
from the indoor unit. Under such circumstances, 
stop the operation of the air conditioner, and then 
con sult your dealer or our service station.

3. OPERATION RANGE

OUTDOOR 

UNIT

INDOOR

OUTDOOR 

TEMPERA-

TURE

TEMPERA-

TURE

HUMID-

ITY

RKS25 · 35 · 

50 · 60

RXS25 · 35 · 

50 · 60

D
B 21 to 32

80% or 
below

D
B

–10 to 46
(–5)

W

B

14 to 23

RMXS112 · 140 · 

160

RMKS112 · 140 · 

160

3MKS58 · 75
4MKS90
3MXS52 · 68
4MXS80

D
B 21 to 32

80% or 
below

D
B

–10 to 46

W

B

14 to 23

OUTDOOR 

UNIT

INDOOR

TEMPERATURE

OUTDOOR 

TEMPERATURE

RXS25 · 35

DB

10 to 30

DB

–14 to 24

WB

–15 to 20

RXS50 · 60

DB

10 to 30

DB

–14 to 24

WB

–15 to 18

RMXS112 · 140 · 

160

3MXS52 · 68
4MXS80

DB

10 to 30

DB

–14 to 21

WB

–15 to 15.5

Recommended temperature setting

For cooling

26 to 28 °C

For heating

20 to 24 °C

4. INSTALLATION SITE

01_EN_3P184442-4D.fm  Page 4  Monday, May 11, 2009  1:52 PM

Summary of Contents for FFQ-B Series

Page 1: ...MODELS Ceiling mounted Multi flow Cassette type FFQ25BV1B FFQ35BV1B FFQ50BV1B FFQ60BV1B SPLIT SYSTEM Air Conditioner OPERATION MANUAL 00_CV1_3P184442 4D fm Page 1 Saturday April 25 2009 1 09 PM...

Page 2: ...1 1 3 4 2 TEST C hr hr TEST NOT AVAILABLE L H 2 10 11 3 1 4 5 6 7 8 14 15 16 17 18 19 20 21 22 12 9 13 a b c d e e f g h i k e f l d j C hr H 00_CV2_3P184442 4D fm Page 1 Thursday April 23 2009 5 28 P...

Page 3: ...y read this operation manual before using the air conditioner It will tell you how to use the unit properly and help you if any trouble occurs After reading the manual file it away for future referenc...

Page 4: ...the following control system type Group control system One remote controller controls up to 16 indoor units All indoor units are equally set Two remote controllers control system Two remote controller...

Page 5: ...noxious gas Do not longer use the air conditioner until a qual ified service person confirms that the leakage has been repaired Consult your local dealer regarding what to do in case of refrigerant l...

Page 6: ...r outlets Impaired air flow may result in insufficient perfor mance or trouble Be sure that children plants or animals are not exposed directly to airflow from the unit as adverse effects may ensue Do...

Page 7: ...dealer Never do it by yourself Make sure that a separate power supply circuit is provided for this air conditioner and that all electrical work is carried out by qualified per sonnel according to loc...

Page 8: ...rature 9 DISPLAY FAN SPEED This display shows the set fan speed 10 DISPLAY AIR FLOW FLAP Refer to AIR FLOW DIRECTION ADJUST 11 DISPLAY TIME TO CLEAN AIR FIL TER Refer to HOW TO CLEAN THE AIR FILTER 12...

Page 9: ...re recom mend starting the unit ahead of time using the timer operation Regarding outside air temperature and heating capacity The heating capacity of the air conditioner declines as the outside air t...

Page 10: ...the stop time can be simulta neously programmed Press the TIMER MODE START STOP but ton several times and select the mode on the display The display flashes For setting the timer stop For setting the...

Page 11: ...g cooling or dry operation and set it downwards during heat ing operation Do not let the air blow directly to a person It takes time for the room temperature to reach the set temperature We recommend...

Page 12: ...tral detergent When the flap is extremely contaminated remove it as below and clean or exchange it For changing the flap please contact your dealer NOTE Do not use gasoline benzene thinner polishing p...

Page 13: ...he display shows UNDER CENTRALIZED CONTROL and it flashes for few seconds after pressing an operation button This is because the system is under centralized control Flashes on the display indicates th...

Page 14: ...n COOLING OPERATION or at a stop The noise is heard when the drain pump is in operation A Pishi pishi squeaking sound is heard when the system is in operation or after the stop of operation Expansion...

Page 15: ...clogged Ask a qualified service person to clean the air fil ters Refer to MAINTENANCE 3 The system operates but it does not suffi ciently cool or heat If the air inlet or outlet of the indoor or the o...

Page 16: ...0906 HT 3P184442 4D EM09A010 00_CV1_3P184442 4D fm Page 2 Saturday April 25 2009 1 09 PM...

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