Mitsubishi Heavy Industries FDT71VNXVD Bedienungsanleitung

HYPER INVERTER PACKAGED AIR-CONDITIONERS

(Split system, Air to air heat pump type)

Twin type

FDTC71VNXPVD

FDTC100VNXPVD

FDTC100VSXPVD

FDTC125VNXPVD

FDTC125VSXPVD

Triple type

FDTC140VNXTVD

FDTC140VSXTVD

CEILING CASSETTE- 4 WAY COMPACT TYPE

Single type

FDUM71VNXVD

FDUM100VNXVD

FDUM100VSXVD

FDUM125VNXVD

FDUM125VSXVD

FDUM140VNXVD

FDUM140VSXVD

Twin type

FDUM100VNXPVD

FDUM100VSXPVD

FDUM125VNXPVD

FDUM125VSXPVD

FDUM140VNXPVD

FDUM140VSXPVD

Triple type

FDUM140VNXTVD

FDUM140VSXTVD

DUCT CONNECTED-LOW/MIDDLE STATIC PRESSURE TYPE

Single type

FDU71VNXVD

FDU100VNXVD

FDU100VSXVD

FDU125VNXVD

FDU125VSXVD

FDU140VNXVD

FDU140VSXVD

DUCT CONNECTED-HIGH STATIC PRESSURE TYPE

Single type

FDT71VNXVD

FDT100VNXVD

FDT100VSXVD

FDT125VNXVD

FDT125VSXVD

FDT140VNXVD

FDT140VSXVD

Twin type

SRK100VNXPZIX

SRK100VSXPZIX

SRK125VNXPZIX

SRK125VSXPZIX

Triple type

SRK140VNXTZIX

SRK140VSXTZIX

WALL MOUNTED TYPE

Twin type

FDT71VNXPVD

FDT100VNXPVD

FDT100VSXPVD

FDT125VNXPVD

FDT125VSXPVD

FDT140VNXPVD

FDT140VSXPVD

Triple type

FDT140VNXTVD

140VSXTVD

CEILING CASSETTE- 4 WAY TYPE

Single type

FDEN71VNXVD

FDEN100VNXVD

FDEN100VSXVD

FDEN125VNXVD

FDEN125VSXVD

FDEN140VNXVD

FDEN140VSXVD

Twin type

FDEN71VNXPVD

FDEN100VNXPVD

FDEN100VSXPVD

FDEN125VNXPVD

FDEN125VSXPVD

FDEN140VNXPVD

FDEN140VSXPVD

Triple type

FDEN140VNXTVD

140VSXTVD

CEILING SUSPENDED TYPE

Manual No. '10 •PAC - DB - 13A

DATA BOOK

DRAFT

Ceiling Cassette - 4 way type

>FDT71VNXVD

>FDT125VNXVD

>FDT140VNXVD

Ceiling Suspended type

>FDEN71VNXVD

>FDEN125VNXVD

>FDEN140VNXVD

Ducted - Medium to High Static type

>FDU71VNXVD

>FDU125VNXVD

>FDU140VNXVD

Service Manual

'10 • PAC-SM-137A

OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER

1.1 Remote controller

(1) Wired remote controller

The figure below shows the remote controller with the cover opened. Note that all the items that may be displayed in the liquid

crystal display area are shown in the figure for the sake of explanation

Characters displayed with dots in the liquid crystal display area are abbreviated.

䋪㩷All displays are described in the liguid crystal display for explanation.

The figure below shows the remote control with the cover opened.

Ventilaion display

Displayed during ventilation operation

Centeal control display

Displayed when the air conditioning system is

controlled by centralized remote control.

Timer operation display

Displays the timer operation setting.

Temperature setting buttons

These buttons are used to set the

temperature of the room.

Timer button

This button is used to set

the timer mode.

Timer setting buttons

These buttons are used to set

the timer mode and the time.

GRILL button

This button has no function.

When this button is pressed,

(Invalid Operation)

is displayed, but it does not mean a failure.

Cover

AIR CON No. button

Display the indoor unit number connected to this

remote controller.

CHECK button

This button is used at servicing.

TEST button

This button is used during test operation.

Weekly timer display

Displays the settings of the

weekly timer.

Operation setting display area

Displays setting temperature, airflow

volume, operation mode and oparation

message.

Operation/check indicator light

During oparation: Lit in green

In case of error: Flashing in red

Operation/stop button

This button is used to operate and stop

the air conditioning system.

Press the button once to operate the

system and press it once again to stop

the system.

MODE button

This button is used to change the

operation mode.

FAN SPEED button

This button is used to set the airflow

volume.

VENT button

This button is used to operate external

ventilator.

LOUVER button

This button is used to operate/stop the

swing louver.

SET button

٨This button is used to fix the setting.

٨This button is used to set the silent mode.

RESET button

٨Press this button while making settings to go back to the

previous operation.

٨This button is also used to reset the "FILTER CLEANING" display.

(Press it after cleaning the air filter)

'10 • PAC-SM-137A

(2) Wireless remote controller

FDEN series only

* All displays are described in the liquid crystal display for explanation

Indication section

Operation section

Indicates set temperature. Indicates the status of swing louver.

Indicates selected operation with .

Indicates for two seconds when FILTER

button is pressed.

Indicates when OFF-TIMER is set.

Indicates OFF-TIMER setting time. Indicates the

current time when the OFF-TIMER is not set.

When this is pressed once, the unit starts to

operate and when this is pressed once again,

it stops operating.

Used to swing the louver.

Every time this button is pressed, displays switch

as below.

Sets room temperature by pressing or button.

Sets time when setting the time.

Used to cancel the TIMER SETTINGS.

Used to reset the microcomputer.

Indicates the selected airflow volume

Indicates when ON-TIMER is set.

Indicates the ON-TIMER setting time.

Nothing displayed when ON-TIMER is

not set.

Sends signal to the air conditioner.

Every time this button is pressed, the mode is

switched as below.

Used to reset (turn off) the filter sign.

Press the button only after completing

the filter cleaning.

Sets ON TIMER operation.

Sets OFF TIMER operation.

Sets current time.

'10 • PAC-SM-137A

1.2 Operation control function by the wired remote controller

(1) Switching sequence of the operation mode switches of remote controller

$29 #//, &!. (%!4 !54/

(2) [CPU reset]

This functions when “CHECK” and “GRILL” buttons on the remote controller are pressed simultaneously. Operation is same

as that of the power supply reset.

(3) [Power failure compensation function]...Electric power supply failure

•This becomes effective if “Power failure compensation effective” is selected with the setting of remote controller function.

• Since it memorizes always the condition of remote controller, it starts operation according to the contents of memory no

sooner than normal state is recovered after the power failure. Although the auto swing stop position and the timer mode are

cancelled, the weekly timer setting is restored with the holiday setting for all weekdays.

After recovering from the power failure, it readjusts the clock and resets the holiday setting for each weekday so that the

setting of weekly timer becomes effective.

• Content memorized with the power failure compensation are as follows.

Note (1) Items, and are memorized regardless whether the power failure compensation is effective or not while the setting of silent mode is cancelled

regardless whether the power failure compensation is effective or not.

At power failure – Operating/stopped

If it had been operating under the off timer mode, sleep timer mode, the state of stop is memorized. (Although the

timer mode is cancelled at the recovery from power failure, the setting of weekly timer is changed to the holiday

setting for all weekdays.)

Operation mode

Airﬂow volume mode

Room temperature setting

Louver auto swing/stop

However, the stop position (4-position) is cancelled so that it returns to Position (1).

“Remote controller function items” which have been set with the remote controller function setting (“Indoor

function items” are saved in the memory of indoor unit.)

Upper limit value and lower limit value which have been set with the temperature setting control

Sleep timer and weekly timer settings (Other timer settings are not memorized.)

[Parts layout on remote controller PCB]

SW2

SW1

親

子

SW1

SW2

Master/ slave setting when more than one remote controllersare used

A maximum of two remote controllers can be connected to one indoor unit (or one group of indoor units.)

Caution

When using multiple remote controllers, the following dispiays or settings

cannot be done with the slave remote controller. It is available only with

the master remote controller.

ޓLouver position setting (set upper or lower limit of swinging range)

ޓSetting indoor unit functions

ޓSetting temperature range

ޓOperation data display

ޓError data display

ޓSilent mode setting

ޓTest operation of drain pump

ޓRemote controller sensor setting

Remote controller cord (no polarity)

Remote controller

SW1 "Master"

Switch Setting Contents

M Master remote controller

SW1 S Slave remote controller

Remote controller

SW1 "Slave"

Lower

Master

Slave

Upper

Board

Indoor units

Set SW1 to "Slave" for the slave remote controller. It was factory set to "Master" for shipment.

Note: The setting "Remote controller thermistor enabled" is only selectable with the master remote

controller in the position where you want to check room temperature.

The air conditioner operation follows the last operation of the remote controller regardless of the

master/ slave setting of it.

'10 • PAC-SM-137A

1.3 Operation control function by the indoor controller

(1) FDT, FDEN, FDU series

(a) Auto operation

If “Auto” mode is selected by the remote controller, the heating and the cooling are automatically switched according to the

difference between outdoor air temperature and setting temperature and the difference between setting temperature and return

air temperature. (When the switching of cooling mode ¢heating mode takes place within 3 minutes, the compressor does

not operate for 3 minutes by the control of 3-minute timer.) This will facilitate the cooling/heating switching operation in

intermediate seasons and the adaptation to unmanned operation at stores, etc (ATM corner of bank).

Note (1) Room temperature control during auto cooling/auto heating is performed according to the room temperature setting temperature. (DIFF: ±1 deg)

(2) If the indoor heat exchanger temperature rises to 59°C or higher during

heating operation, it is switched automatically to cooling operation. In

addition, for 1 hour after this switching, the heating operation is not

performed, regardless of the temperature shown at right.

Room temperature setting temperature

+3-3

Cooling operation

Heating operation

Room temperature (detected with ThI-A) [deg]

5956

Heating operation stopped (cooling)

Heating OK

Indoor heat exchanger temperature (°C)

(b) Operations of functional items during cooling/heating

Cooling Heating

Dehumidify

Fan

Operation

Functional item

Thermostat

OFF

Thermostat

OFF

Hot start

(Defrost)

Compressor

4-way valve

Outdoor unit fan

Indoor unit fan

Louver motor

Drain pump (3)

















(2)





(2)





/











/×



()





/



/

Thermostat ON:



Thermostat OFF:



(2)

/

/(2)

Note (1) :Operation : Stop /: Turned ON/OFF by the control other than the room temperature control.

(2) ON during the drain motor delay control.

(3) Drain pump ON setting may be selected with the indoor unit function setting of the wired remote controller.

Return air temperature thermistor [ThI-A (by the remote controller when the remote controller thermistor is enabled)] controls

the indoor temperature environment simultaneously.

1) Operation is started in the cooling mode. When the difference between the return air temperature and the setting

temperature is 2°C or less, the indoor unit fan tap is brought down by one tap. That tap is retained for 3 minutes after

changing the indoor unit fan tap.

2) If the return air temperature exceeds the setting temperature by 3°C during defrosting operation, the indoor unit fan tap is

raised. That tap is retained for 3 minutes after changing the indoor unit fan tap.

3) If the thermostat OFF is established during the above control, the indoor unit fan tap at the thermostat ON is retained so

far as the thermostat is turned OFF.

4) After stopping the cooling operation, the indoor unit continues to run at Lo for 15 seconds.

'10 • PAC-SM-137A

(d) Timer operation

1) Sleep timer

Set the duration of time from the present to the time to turn off the air-conditioner.

It can be selected from 10 steps in the range from “OFF 1 hour later” to “OFF 10 hours later”. After the sleep timer

setting, the remaining time is displayed with progress of time in the unit of hour.

2) OFF timer

Time to turn OFF the air-conditioner can be set in the unit of 10 minutes.

3) ON timer

Time to turn ON the air-conditioner can be set. Indoor temperature can be set simultaneously.

4) Weekly timer

Timer operation (ON timer, OFF timer) can be set up to 4 times a day for each weekday.

5) Timer operations which can be set in combination

Sleep timer

OFF timer

ON timer

Weekly timer

Sleep timer







OFF timer







ON timer





Weekly timer



Note (1) : Allowed : Not

Item

(e) Remote controller display during the operation stop

1) “Centralized control ON” is displayed always on the LCD under the “Center/Remote” and “Center” modes during the

operation stop (Power ON). This is not displayed under the “Remote” mode.

2)If this display is not shown under the “Center/Remote” mode, check if the indoor unit power switch is turned on or not.

(f) Hot start (Cold draft prevention at heating)

At the startup of heating operation, at resetting of the thermostat, during defrost operation and at returning to heating, the

indoor fan is controlled by the indoor heat exchanger temperature (detected with ThI-R) for preventing the cold draft.

Judgment by heatingstart thermostat

Normal condition/Set airflow volume

Thermostat OFF Thermostat ON

Compressor OFFCompressor ON End of defrosting

Heat exchanger temp. 35

˚C

or higher, or after 7 minutes Heat exchanger temp. 35

˚C

or higher, or after 7 minutes

Defrostingstart

Fan

Set airflow volume

Indoor heat exchanger temperature (˚C)

35 45

25 35

Indoor heat exchanger temperature (˚C)

Set airflow volume

Fan

OFF

25 35 45

Set airflow volume

Fan

OFF

Indoor heat exchanger temperature (˚C)

Fan

（1）

Note (1) Heating preparation is displayed during the hot start (when the compressor is operating and the indoor fan does not provide the set airﬂow volume).

'10 • PAC-SM-137A

(g) Hot keep

Hot keep control is performed at the start of the defrost control.

1) Control

a) When the indoor heat exchanger temperature (detected with ThI-R1 or R2) drops to 35°C or lower, the speed of

indoor fan is changed to the lower tap at each setting.

b) During the hot keep, the louver horizontal control signal is transmitted.

2) Ending condition

When the indoor fan is at the lower tap at each setting, it returns to the set airﬂow volume as the indoor heat exchanger

temperature rises to 45°C or higher.

(h)

Fan control during the heating thermostat OFF

When the heating thermostat is turned OFF, the setting of the fan control is selectable using the indoor function of wired remote

controller [ FAN CONTROL].

1) Low fan speed (Factory default)

If the indoor heat exchanger temperature drops below 35°C with the heating thermostat OFF, the indoor fan operate at the

lower speed tap at each setting.

2)Set fan speed

Even if the indoor heat exchanger temperature drops below 35°C with the heating thermostat OFF, the indoor fan

continues to run at the set airﬂow volume.

3) Intermittence

If the indoor heat exchanger temperature drops below 35°C with the heating thermostat OFF, the indoor fan operates at

the lower speed tap at each setting and, when the indoor heater exchanger temperature drops below 25°C, the indoor fan

stops for 5 minutes. Then the fan runs at the low speed tap for 2 minutes, and the judgment is made by the thermostat.

4) Fan OFF

If the indoor heat exchanger temperature drops below 35°C with the heating thermostat OFF, the indoor fan is turned

OFF. The same applies also when the remote controller sensor is effective.

(i) Filter sign

As the operation time (Total ON time of ON/OFF switch) accumulates to 180 hours (1), “FILTER CLEANING” is displayed

on the remote controller. (This is displayed when the unit is in trouble and under the centralized control, regardless of ON/OFF)

Note (1) Time setting for the ﬁlter sign can be made as shown below using the indoor function of wired remote controller “FILTER SIGN SET”. (It is set at 1 at the

shipping from factory.)

Filter sign setting

TYPE 1

TYPE 2

TYPE 3

TYPE 4

Function

Setting time: 180 hrs (Factory default)

Setting time: 600 hrs

Setting time: 1,000 hrs

Setting time: 1,000 hrs (Unit stop)

(2)

(2) After the setting time has elapsed, the “FILTER CLEANING” is displayed and, after operating for 24 hours further (counted also during the stop), the

unit stops.

(j) Auto swing control [Applicable model: FDT and FDEN]

1) Louver control

a) Press the “LOUVER” button to operate the swing louver when the air conditioner is operating.

“SWING

” is displayed for 3 seconds and then the swing louver moves up and down continuously.

b) To ﬁx the swing louver at a position, press one time the “LOUVER” button while the swing louver is moving so that

four stop positions are displayed one after another per second.

When a desired stop position is displayed, press the “LOUVER” button again. The display stops, changes to show

the “STOP 1 ” for 5 seconds and then the swing louver stops.

c) Louver operation at the power on with a unit having the louver 4-position control function

The louver swings one time automatically (without operating the remote controller) at the power on.

This allows inputting the louver motor (LM) position, which is necessary for the microcomputer to recognize the

louver position.

Note (1) If you press the “LOUVER” button, the swing motion is displayed on the louver position LCD for 10 second. The display changes to the

“SWING ” display 3 seconds later.

'10 • PAC-SM-137A

2) Automatic louver level setting during heating

At the hot start with the heating thermostat OFF, regardless whether the auto swing switch is operated or not (auto swing

or louver stop), the louver takes the level position (In order to prevent the cold start). The louver position display LCD

continues to show the display which has been shown before entering this control.

3) Louver-free stop control

When the louver-free stop has been selected with the indoor function of wired remote controller “ POSITION”, the

louver motor stops when it receives the stop signal from the remote controller. If the auto swing signal is received from

the remote controller, the auto swing will start from the position where it was before the stop.

Note (1) When the indoor function of wired remote controller “ POSITION” has been switched, switch also the remote control function “

POSITION” in the same way.

(k) Compressor inching prevention control

1) 3-minute timer

When the compressor has been stopped by the thermostat, remote controller operation switch or anomalous condition,

its restart will be inhibited for 3 minutes. However, the 3-minute timer is invalidated at the power on the electric power

source for the unit.

2) 3-minute forced operation timer

• Compressor will not stop for 3 minutes after the compressor ON. However, it stops immediately when the unit is

stopped by means of the ON/OFF switch or by when the thermister turned OFF the change of operation mode.

• If the thermostat is turned OFF during the forced operation control of heating compressor, the louver position (with the

auto swing) is returned to the level position.

Note (1) The compressor stops when it has entered the protective control.

(l) Drain motor (DM) control [Applicable model: FDT, FDU]

1) Drain motor (DM) is operated during the cooling or dehumidifying mode operations and simultaneously with the

compressor ON. The DM continues to operate for 5 minutes after the operation stop, anomalous stop, thermostat stop or

when it was switched from the cooling and dehumidifying operations to the fan or heating operation.

Stop (1)

Indoor unit operation mode

Control A

Control B

Compressor ON

Compressor OFF

Cooling

Dehumidifying

HeatingFan (2) Note (1) Including the stop from the cooling, dehumidifying, fan

and heating, and the anomalous stop

(2) Including the “Fan” operation according to the

mismatch of operation modes

a) Control A

i) If the ﬂoat switch detects any anomalous draining condition, the unit stops with the anomalous stop (displays

E9) and the drain pump starts. After detecting the anomalous condition, the drain motor continues to be ON.

ii) It keeps operating while the ﬂoat switch is detecting the anomalous condition.

b) Control B

If the ﬂoat switch detects any anomalous drain condition, the drain motor is turned ON for 5 minutes, and at 10

seconds after the drain motor OFF it checks the ﬂoat switch. If it is normal, the unit is stopped under the normal

mode or, if there is any anomalous condition, E9 is displayed and the drain motor is turned ON. (The ON condition

is maintained during the drain detection.)

2) Drain motor (DM) interlock control

a) Start conditions

Depending on the function setting by the remote controller, the drain motor is turned ON under either one of the

following conditions.

i) During heating mode operation (Both the thermostat ON/OFF)

ii) During heating mode operation (Both the thermostat ON/OFF) + Fan operation

iii) Fan operation

b) End conditions

The drain motor is turned OFF 5 minutes after the stop of operations i) to iii) above.

(m) Operation check/drain pump test run operation mode

If the power is turned on by the dip switch (SW7-1) on the indoor PCB when electric power source is supplied, it enters the

mode of operation check/drain pump test run. It is ineffective (prohibited) to change the switch after turning power on.

2) When the communication with the remote controller has been established within 60 seconds after turning power on by the

dip switch (SW7-1) ON, it enters the operation check mode. Unless the remote controller communication is established, it

enters the drain pump test run mode.

Note (1) To select the drain pump test run mode, disconnect the remote controller connector (CNB) on the indoor PCB to shut down the remote controller

communication.

'10 • PAC-SM-137A

3) Operation check mode

There is no communication with the outdoor unit but it allows performing operation in respective modes by operating the

remote controller.

4) Drain pump test run mode

As the drain pump test run is established, the drain pump only operates and during the operation protective functions by

the microcomputer of indoor unit become ineffective.

(n) Cooling, dehumidifying frost protection

1) To prevent frosting during cooling mode or dehumidifying mode operation, the of compressor speed is reduced if

the indoor heat exchanger temperature (detected with ThI-R) drops to 1.0 °C or lower at 4 minutes after the start of

compressor operation. If the indoor unit heat exchanger temperature is 1.0 °C or lower after 1 minutes, the compressor

speed is reduced further. If it becomes 2.5 °C or higher, the control terminates. When the indoor heat exchanger

temperature has become as show below after reducing the compressor speed, it is switched to the fan operation. For the

selection of indoor fan speed, refer to item 2).

101.0

Indoor heat exchanger temperature (°C)

Fan operation

Cooling operation

2) Selection of indoor fan speed

If it enters the frost prevention control during cooling operation (excluding dehumidifying), the indoor unit fan speed is

switched.

(a) In cases of FDU and FDEN

i) When the indoor unit return air temperature (detected with ThI-A) is 23°C or lower, this control is invalidated

and, as 2 hours elapse after starting the frost prevention control, it is terminated.

ii) If it is detected again within 15 minutes from the start of frost prevention control, the indoor fan speed is raised

by 1 tap to increase the indoor unit fan speed. If it is detected within further 15 minutes, the indoor unit fan

speed is raised by 1 tap more.

Note (1) Indoor unit fan speed can be increased by up to 2 taps.

iii) “ FAN SPEED SW VALID/INVALID” of this control is selectable with the function setting of remote

controller.

b) In the case of FDT

i) When the indoor return air detection temperature (detected with ThI-A) is 23°C or higher and the indoor heat

exchanger temperature (detected with ThI-R) detects the compressor frequency drop start temperature A°C+1°C,

of indoor unit fan speed is increased by 20rpm.

ii) If the phenomenon of i) above is detected again after the acceleration of indoor unit fan, indoor unit fan speed

is increased further by 20rpm.

Note (1) Indoor unit fan speed can be increased by up to 2 taps.

• Compressor frequency drop start temperature

Symbol

Item A

Temperature - Low (Factory default) 1.0

Temperature - High 2.5

Note (1) Frost prevention temperature setting can be selected with the indoor unit function setting of the wired remote controller.

(o) Heating overload protection

1) If the indoor heat exchanger temperature (detected with ThI-R) at 63°C or higher is detected for 2 seconds continuously,

the compressor stops. When the compressor is restarted after a 3-minute delay, if a temperature at 63°C or higher is

detected for 2 seconds continuously within 60 minutes after initial detection and if this is detected 5 times consecutively,

the compressor stops with the anomalous stop (E8). Anomalous stop occurs also when the indoor heat exchanger

temperature at 63°C or higher is detected for 6 minutes continuously.

56 63

Indoor heat exchanger temperature (°C)

Compressor ON

Compressor OFF

2) Indoor unit fan speed selection

If, after second detection of heating overload protection up to fourth, the indoor fan is set at Me and Lo taps when the

compressor is turned ON, the indoor fan speed is increased by 1 tap.

'10 • PAC-SM-137A

(p) Anomalous fan motor [In case of FDT only]

After starting the fan motor, if the fan motor speed is 200rpm or less is detected for 30 seconds continuously and 4 times within

60 minutes, then fan motor stops with the anomalous stop (E16).

(q) Plural unit control – Control of 16 units group by one remote controller

1) Function

One remote controller switch can control a group of multiple number of unit (Max. 16 indoor units). “Operation mode”

which is set by the remote controller switch can operate or stop all units in the group one after another in the order of unit

No.(1). Thermostat and protective function of each unit function independently.

Note (1) Unit No. is set by SW2 on the indoor unit control PCB. Unit No. setting by SW2 is necessary for the indoor unit only. In cases of the twin, triple

and double-twin speciﬁcation, it is necessary set for the master and the slave units. This can be selected by SW5. (All are set for the master unit at

the shipping from factory.)

SW2: For setting of 0 – 9, A – F

SW5: For setting of master and slave units

(See table shown at right.)

Remote controller

Indoor unit

Outdoor unit

Signal wiring

between outdoor unit

and indoor units

(Master unit) (Slave unit a) (Slave unit b)

Remote controller wiring

0123 F

444

(Slave unit c)

Refrigerant piping

Master unit OFF OFF

OFF ON

SW5-1 SW5-2

ON OFF

ON ON

Slave unit a

Slave unit b

Slave unit c

Switch

Unit

SW5 setting

(2) Unit No. may be set at random unless duplicated, it should be better to set orderly like 0, 1, 2…, Fto avoid mistake.

2) Display to the remote controller

a) Center or each remote controller basis, heating preparation: the youngest unit No. among the operating units in the

remote mode (or the center mode unless the remote mode is available) is displayed.

b) Inspection display, ﬁlter sign: Any of unit that starts initially is displayed.

c) Conﬁrmation of connected units

Pressing “AIR CON No.” button on the remote controller displays the indoor unit address. If “S” “T” button is

pressed at the next, it is displayed orderly starting from the unit of youngest No.

d) In case of anomaly

i) If any anomaly occurs on a unit in a group (a protective function operates), that unit stops with the anomalous

stop but any other normal units continue to run as they are.

ii) Signal wiring procedure

Signal wiring between indoor and outdoor units should be made on each unit same as the normal wiring.

For the group control, lay connect with sires wiring between rooms using terminal blocks (X, Y) of remote

controller.

Connect the remote controller communication wire separately from the power supply wire or wires of other

electric devices (AC220V or higher).

(r) High ceiling control

In the case of indoor unit installed in a higher ceiling room, the airﬂow volume mode control can be changed with the wired

remote controller indoor unit function “FAN SPEED SET”.

-------

UH-HiUH-MeUH-Hi-Me

STANDARD

HIGH SPEED1, 2

FAN SPEED SET Hi-Lo Hi-MeHi-Me-Lo

UH-UH-Hi-Me

UH-Hi-Me-Lo

Indoor unit airflow setting

Fan tap

Note (1) Factory default is Standard.

(2) At the hot-start and heating thermostat OFF, or other, the indoor unit fan is operated at the low speed tap of each setting.

Dieses Handbuch passt für folgende Modelle

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