Mitsubishi Heavy Industries FDUA160AVSAVH Bedienungsanleitung

(Split system, air to air heat pump type)

MICRO INVERTER PACKAGED AIR-CONDITIONERS

Manual No.'21 • PAC-SM-398

SERVICEMANUAL

FDUA160AVSAVH

200AVSAVH

DUCT CONNECTED-HIGH STATIC PRESSURE TYPE

For Australian market only

'21 • PAC-SM-398

TABLE OF CONTENTS

1. MICRO INVERTER PACKAGED AIR-CONDITIONERS .................................... 2

2. ZONE CONTROL INSTALLATION MANUAL (FDUA160VH only).................... 114

'21 • PAC-SM-398

1. MICRO INVERTER PACKAGED AIR-CONDITIONERS

CONTENTS

1.1 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER.................. 4

1.1.1 Remote control (Option parts) .............................................................. 4

1.1.2 Operation control function by the wired remote control .................... 7

1.1.3 Operation control function by the indoor control ............................... 10

(1) Auto operation ........................................................................................... 10

(2) Operations of functional items during cooling/heating .............................. 11

(3) Dehumidifying (DRY) operation................................................................. 11

(4) Timer operation ......................................................................................... 12

(5) Hot start (Cold draft prevention at heating) ............................................... 13

(6) Hot keep.................................................................................................... 13

(7) Thermostat operation ................................................................................ 14

(8) Filter sign................................................................................................... 15

(9) Compressor inching prevention control..................................................... 15

(10) Drain pump control.................................................................................... 16

(11) Drain pump motor (DM) control ................................................................. 16

(12) Operation check/drain pump test run operation mode .............................. 16

(13) Cooling, dehumidifying frost protection ..................................................... 17

(14) Heating overload protection ...................................................................... 17

(15) Anomalous fan motor ................................................................................ 17

(16) Plural unit control - Control of 16 units group by one remote control ....... 18

(17) Fan speed setting control.......................................................................... 18

(18)

Abnormal temperature sensor (retun air/indoor heat exchanger) broken wire/short-circuit detection

..... 19

(19) External input/output control (CnT or CnTA) ............................................. 19

(20) Operation permission/prohibition............................................................... 21

(21) Temporary stop input................................................................................. 23

(22) Selection of cooling/heating external input function .................................. 23

(23) Fan control at heating startup.................................................................... 24

(24)

Room temperature detection temperature compensation during heating

....... 24

(25) Return air temperature compensation....................................................... 24

(26) High power operation (RC-EX(Z)3A only) ................................................. 24

(27) Energy-saving operation (RC-EX(Z)3A only) ............................................ 24

(28) Warm-up control (RC-EX(Z)3A only)......................................................... 24

(29) Home leave mode (RC-EX(Z)3A only) ...................................................... 24

(30) Auto temperature setting (RC-EX(Z)3A only) ............................................ 24

(31) Fan circulator operation (RC-EX(Z)3A only).............................................. 25

(32)

The operation judgment is executed every 5 minutes (RC-EX(Z)3A only)

... 25

(33) Auto fan speed control (RC-EX(Z)3A only)................................................ 25

'21 • PAC-SM-398

(34) Indoor unit overload alarm (RC-EX(Z)3A only).......................................... 25

(35) Peak-cut timer (RC-EX(Z)3A only) ............................................................ 25

(36) Motion sensor control (RC-EX(Z)3A and RCN-E2 only)............................ 26

(37) Dew drop prevention control 1 (FDUA160VH only)................................... 27

(38) Dew drop prevention control 2 (FDUA160VH only)................................... 27

1.1.4 Operation control function by the outdoor control............................ 28

(1) Determination of comressor speed (Frequency)....................................... 28

(2) Compressor start control........................................................................... 29

(3) Compressor soft start control .................................................................... 29

(4) Outdoor fan control.................................................................................... 29

(5) Defrost operation....................................................................................... 31

(6)

Protective control/anomalous stop control by compressorʼs number of revolutions

..... 32

(7) Silent mode ............................................................................................... 36

(8) Test run...................................................................................................... 36

(9) Pump-down control ................................................................................... 36

(10) Base heater ON/OFF output control (Option)............................................ 37

(11) DRED ........................................................................................................ 37

1.2 MAINTENANCE DATA................................................................................... 39

1.2.1 Diagnosing of microcomputer circuit.................................................. 39

(1) Selfdiagnosis function ................................................................................. 39

(2) Troubleshooting procedure.......................................................................... 42

(3) Troubleshooting at the indoor unit............................................................... 42

(4) Troubleshooting at the outdoor unit............................................................. 48

(5) Check of anomalous operation data with the remote control ...................... 56

(6)

Power transistor module (Including the driver PCB) inspection procedure

... 58

(7) Inverter checker for diagnosis of inverter output ......................................... 59

(8) Outdoor unit control failure diagnosis circuit diagram ................................. 60

1.2.2 Troubleshooting ow ............................................................................. 61

(1) List of troubles............................................................................................. 61

(2) Troubleshooting........................................................................................... 62

1.3 ELECTRICAL WIRING...................................................................................109

(1) Indoor units................................................................................................109

(2) Outdoor units.............................................................................................111

1.4 PIPING SYSTEM............................................................................................112

'21 • PAC-SM-398

'16 • PAC-T-251

① Run/Stop switch

② F1 switch③F2 switch

Touch panel system, which is operated by tapping the LCD screen with a finger, is employed

for any operations other than the ①Run/Stop, ②F1 and ③F2 switches.

One push on the button starts operation and

another push stops operation.

This switch starts operation that is set in F1/F2

function change.

④Operation lamp

This lamp lights in green (yellow-green) during

operation. It changes to red (orange) if any error

occurs.

Operation lamp luminance can be changed.

⑤LCD (with backlight)

A tap on the LCD lights the backlight.

The backlight turns off automatically if there is

no operation for certain period of time. Lighting

period of the backlight lighting can be changed.

If the backlight is ON setting, when the screen is

tapped while the backlight is turned off, the backlight

only is turned on. (Operations with switches ①,②

and ③are excluded.)

⑥USB port

USB connector (mini-B) allows connecting to a

personal computer.

For operating methods, refer to the instruction

manual attached to the software for personal

computer (remote control utility software).

Note(1) When connecting to a personal computer, do not connect

simultaneously with other USB devices.

Please be sure to connect to the computer directly,without

going through a hub, etc.

Model RC-EX3A

1.10

OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER

1.10.1 Remote control

(1) Wired remote control

P044-055.pdf2017/03/1713:53:02

⑤LCD (with backlight)

③F2 switch

④Operation lamp

⑥USB port (mini-B)

①Run/Stop switch

②F1 switch

1.1 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER

1.1.1 Remote control (Option parts)

(1) Wired remote control

Model RC-EX(Z)3A

'21 • PAC-SM-398

(1) Wired remote control

Model RC-E5

The figure below shows the remote control 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.

＊ 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

Central control display

Displayed when the air conditioning system is

controlled by central 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.

ESP button

This button is used to

select the auto static

pressure adjustment mode.

Cover

AIR CON No. button

Display the indoor unit number connected to this

remote control.

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, air flow

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 air flow

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

●This button is used to fix the setting.

●This button is used to set the silent mode.

RESET button

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

previous operation.

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

(Press it after cleaning the air filter)

Model RC-E5

'21 • PAC-SM-398

113

'16 • PAC-T-251

(2) Wireless remote control

Indication section

Operation section

RCN-E2

(2) Wireless remote control

1 8 9

3 7 2

①

OPERATION MODE display

Indicates selected operation mode.

②

SET TEMP display Indicates set temperature.

SLEEP TIMER time display Indicates the amount of time remaining on the sleep timer.

Indoor function setting

number display Indicates the setting number of the indoor function setting.

③FAN SPEED display Indicates the selected air ow volume.

④UP/DOWN AIR FLOW

display Indicates the up/down louver position.

⑤LEFT/RIGHT AIR FLOW

display Indicates the left/right louver position.

⑥Clock display Indicates the current time. If the timer is set, the ON TIM-

ER and OFF TIMER setting times are indicated.

⑦ON/OFF TIMER display Displayed when the timer is set.

⑧ECO mode display Displayed when the energy-saving operation is active.

⑨HI POWER display Displayed when the high power operation is active.

⑩NIGHT SETBACK display Displayed when the home leave mode is active.

⑪SILENT display Displayed when the silent mode control is active.

⑫Motion sensor display Displayed when the infrared sensor control(motion sensor

control) is enabled.

⑬Anti draft setting display Displayed when anti draft setting is enabled.

⑭Child lock display Displayed when child lock is enabled.

Transmitter:Sends signal to the air-

conditioner.

①

⑲

⑤

②

⑫④

③

⑰

⑮

⑨

⑩

⑯

⑪

⑧

⑥

⑭

⑦

⑬

⑱

①ON/OFF button

When this is pressed once, the air-conditioner starts to

operate and when this is pressed once again, it stops

operating.

②MODE button

Every time this button is pressed, displays switch as below

(AUTO) (COOL) (HEAT)

(FAN) (DRY)

③

TEMP button

Change the set temperature by pressing or button.

④FAN SPEED button The fan speed is switched in the following order: 1-speed

➞2-speed ➞3-speed ➞4-speed ➞AUTO ➞1-speed.

⑤U/D button Used to determine the up/down louver position.

⑥ON TIMER button Used to set the ON TIMER.

⑦OFF TIMER button Used to set the OFF TIMER.

⑧SELECT button

Used to switch the time when setting the timer or adjusting the time.

Used to switch the settings of the indoor function.

⑨SET button

Used to determine the setting when setting the timer or

adjusting the time.

Used to determine the settings of the indoor function.

When press and hold SET button ,Child Lock is enabled.

⑩CANCEL button Used to cancel the timer setting.

⑪SLEEP button Used to set the sleep timer.

⑫ECO button Pressing this button starts the energy-saving operation.

Pressing this button again cancels it.

⑬HI POWER button Pressing this button starts the high power operation.

Pressing this button again cancels it.

⑭SILENT button Pressing this button starts the silent mode control. Press-

ing this button again cancels it.

⑮NIGHT SETBACK button Pressing this button starts the home leave mode.

Pressing this button again cancels it.

⑯FILTER button Pressing this button resets FILTER SIGN.

⑰

FUNCTION SETTING switch

Used to set the indoor function.

⑱TIME SETUP switch Used to set the current time.

⑲ACL switch Used to reset the microcomputer.

'21 • PAC-SM-398

1.1.2 Operation control function by the wired remote control

114

'16 • PAC-T-251

Service & Maintenance

Special settings

Indoor unit capacity display

Back

Select the item.

前ページ

Previous Back

Erase IU address

CPU reset

Restore of default setting

Touch panel calibration

Special settings

Select the item.

R/C function settings

Ventilation setting

Auto-restart

Auto temp setting

Back

Select the item.

Auto fan speed

②Auto-restart

Auto-restart

Back

Select the item.

Enable

Disable

1.10.2 Operation control function by the wired remote control

●Model RC-EX(Z)3A

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

(a) Tap the change operation mode button on the TOP screen.

(b) When the change operation mode screen is displayed, tap the button of desired mode.

Icons displayed have the following meanings.

Notes(1) Operation modes whichcannot be selected depending on combinations of indoor

unit and outdoor unit are not displayed.

(2) When the Auto is selected,the cooling and heating switching operation is performed

automatically according to indoor and outdoor temperatures.

(2) CPU reset

Reset CPU from the remote control as follows.

TOP screen Menu Service setting Service & Maintenance Service password

The selected screen is

displayed.

The selected screen is

displayed.

① Service & Maintenance #2 ②Special settings

⇒ ⇒ ⇒

CPU reset

Microcomputers of indoor unit and outdoor unit connected are reset

(State of restoration after power failure).

(3) Power failure compensation function (Electric power source failure)

Enable the Auto-restart function from the remote control as follows.

TOP screen Menu ⇒ Service setting ⇒ R/C function settings Service password

⇒

①

R/C function settings menu #3

If the unit stops during operation,

It returns to the state before the power failure as soon asthe power

source is restored (After the end of the primary control at the power

on).

It stops after the restoration of power source.

Enable

Disable

●Since the status of remote control is retained in memory always, it restarts operations according to the contents of memory

as soon as the power source is restored. Although the timer mode is cancelled, the weeklytimer, peakcut timerand silent

mode timer operate according to the following contents:

・When the clock setting is valid : These timer settings are also valid.

・When the clock setting is invalid : These timer settings become “Invalid” since the clock setting is invalid.

These timer settings have to be changed to “Valid” after the timer setting.

Cooling Fan

Dry Heating

Auto

'21 • PAC-SM-398

Clock setting check screen

Misconnection screen

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

Note(1) Items (f) and (g) 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.

(a) At power failure – Operating/stopped

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

(b) Operation mode

(d) Room temperature setting

(e) Louver auto swing/stop

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

(f) “Remote control function items” which have been set with the administrator or installation function settings

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

(g) Weekly timer, peak-cut timer or silent mode timer settings

(h) Remote control function setting

Please check the I/U

Set clock first on the initializing

screen & set the timer.

Other than A/C is connected

(4) Alert displays

If the following (a) to (c) appear, check and repair as follows.

Communication check screen ●This appears if communications cannot be established between the remote

control and the indoor unit.

Check whether the system is correctly connected (indoor unit, outdoor unit,

remote control) and whether the power source for the outdoor unit is connected.

●This appears when the timer settings are done without clock setting.

Set the clock setting before the timer settings.

●This appears when something other than the air-conditioner has been connected to the remote

control.

Check the location to which the remote control is connected.

(a) Communication check between indoor unit and remote control

(b) Clock setting check

) Misconnection

'21 • PAC-SM-398

●

Model RC-E5

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

DRY COOL FAN HEAT AUTO

(2) CPU reset

This functions when “CHECK” and “ESP” buttons on the remote control are pressed simultaneously. Operation is same as

that of the power source reset.

(3) Power failure compensation function (Electric power source failure)

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

• Since it memorizes always the condition of remote control, 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 (f), (g) and (h) 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.

(a) 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.)

(b) Operation mode

(c) Airowvolumemode

(d) Room temperature setting

(e) Louver auto swing/stop

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

(f) “Remote control function items” which have been set with the remote control function setting (“Indoor

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

(g) Upper limit value and lower limit value which have been set with the temperature setting control

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

[Parts layout on remote control PCB]

Master/ slave setting when more than one remote controls are used

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

Remote control cord (no polarity)

Remote control

SW1 "Master"

Switch Setting Contents

M Master remote control

SW1 S Slave remote control

Remote control

SW1 "Slave"

Indoor units

Note (1) Don’t change SW2 because it is not used normally.

Caution

When using multiple remote controls, the following dispiays or settings

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

the master remote control.

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

　Setting indoor unit functions

　Setting temperature range

　Operation data display

　Error data display

　Silent mode setting

　Test operation of drain pump

　Remote control sensor setting

SW2

SW1

親

子

SW1

SW2

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