Trane Mitsubishi Electric CITY MULTI Series Betriebsanleitung

TECHNICAL & SERVICE MANUAL

Indoor unit

[Model Name]

CONTENTS

1. SAFETY PRECAUTION..........................

2. PARTS NAMES AND FUNCTIONS........4

3. SPECIFICATIONS.................................12

4. 4-WAY AIRFLOW SYSTEM..................18

5. OUTLINES AND DIMENSIONS............

6. WIRING DIAGRAM...............................

REFRIGERANT SYSTEM DIAGRAM

......

8. MICROPROCESSOR CONTROL.........

9. TROUBLESHOOTING.......................... 31

10. DISASSEMBLY PROCEDURE...........

INDOOR UNIT

PARTS CATALOG (OCBT746)

R410A

August 2020

No. OCHT746

REVISED EDITION-A

Grille model

[Model Name]

TLP-41EAEU

WIRED REMOTE

CONTROLLER

(Option)

IR WIRELESS REMOTE

CONTROLLER

(Option)

ON/OFF TEMP

MENU ON

OFF

RETURN SELECT

HOLD

Model name

indication for

MAIN UNIT

Model name

indication for GRILLE

TPLFYP006EM140B

TPLFYP008EM140B

TPLFYP012EM140B

TPLFYP015EM140B

TPLFYP018EM141B

TPLFYP024EM140B

TPLFYP030EM140B

TPLFYP036EM140B

TPLFYP048EM140B

INDOOR UNIT FOR VRF SYSTEM

Revision:

• 5.OUTLINES AND

DIMENSIONS has been

revised.

• Some descriptions

have been modified

REVISED EDITION-A

OCHT746 is void.

32 3

OCHT746A

CAUTIONS RELATED TO NEW REFRIGERANT

Cautions for units utilizing refrigerant R410A

Charge refrigerant from liquid phase of gas

cylinder.

If the refrigerant is charged from gas phase, composition

change may occur in refrigerant and the efficiency will be

lowered.

Do not use refrigerant other than R410A.

If other refrigerant (R22, etc.) is used, chlorine in refrige-

rant can cause deterioration of refrigerant oil, etc.

Use a vacuum pump with a reverse flow check

valve.

Vacuum pump oil may flow back into refrigerant cycle and

that can cause deterioration of refrigerant oil, etc.

Use the following tools specifically designed for

use with R410A refrigerant.

The following tools are necessary to use R410A refrigerant.

Handle tools with care.

If dirt, dust or moisture enters into refrigerant cycle, that can

cause deterioration of refrigerant oil or malfunction of com-

pressor.

Do not use a charging cylinder.

If a charging cylinder is used, the composition of refrigera-

nt will change and the efficiency will be lowered.

Flare tool

Electronic refrigerant

charging scale

Vacuum pump adaptor

Size adjustment gauge

Gauge manifold

Torque wrench

Gas leak detector

Charge hose

Tools for R410A

If dirt, dust or moisture enters into refrigerant cycle, that can

cause deterioration of refrigerant oil or malfunction of com-

pressor.

If large amount of mineral oil enters, that can cause deterio-

ration of refrigerant oil, etc.

Do not use the existing refrigerant piping.

The old refrigerant and lubricant in the existing piping

contains a large amount of chlorine which may cause the

lubricant deterioration of the new unit.

Use “low residual oil piping”

If there is a large amount of residual oil (hydraulic oil, etc.)

inside the piping and joints, deterioration of the lubricant

will result.

Store the piping indoors, and keep both ends of

the piping sealed until just before brazing.

(Leave elbow joints, etc. in their packaging.)

The refrigerant oil applied to flare and flange

connections must be ester oil, ether oil or

alkylbenzene oil in a small amount.

Ventilate the room if refrigerant leaks during

operation. If refrigerant comes into contact with

a flame, poisonous gases will be released.

Never use any refrigerant other than that specified.

Doing so may cause a burst, an explosion, or fire when the

unit is being used, serviced, or disposed of.

Correct refrigerant is specified in the manuals and on the

spec labels provided with our products.

We will not be held responsible for mechanical failure,

system malfunction, unit breakdown or accidents caused

by failure to follow the instructions.

Use the specified refrigerant only.

SAFETY PRECAUTION

OCHT746A 3

[1] Cautions for service

(1) Perform service after recovering the refrigerant left in unit completely.

(2) Do not release refrigerant in the air.

(3) After completing service, charge the cycle with specified amount of refrigerant.

(4) When performing service, install a filter drier simultaneously.

Be sure to use a filter drier for new refrigerant.

[2] Additional refrigerant charge

When charging directly from cylinder

· Check that cylinder for R410A on the market is a syphon type.

· Charging should be performed with the cylinder of syphon standing vertically. (Refrigerant is charged from liquid phase.)

Electronic weighing scale

Unit

[3] Service tools

Use the below service tools as exclusive tools for R410A refrigerant.

No. Tool name Specifications

1Gauge manifold

· Only for R410A

· Use the existing fitting specifications. (UNF1/2)

· Use high-tension side pressure of 768.7 PSIG [5.3 MPa.G] or over.

2Charge hose · Only for R410A

· Use pressure performance of 738.2 PSIG [5.09 MPa.G] or over.

3Electronic weighing scale

4Gas leak detector · Use the detector for R134a, R407C or R410A.

5Adaptor for reverse flow check · Attach on vacuum pump.

6Refrigerant charge base

7Refrigerant cylinder · Only for R410A · Top of cylinder (Pink)

· Cylinder with syphon

8Refrigerant recovery equipment

OCHT746A 4

2PARTS NAMES AND FUNCTIONS

2-1. Indoor Unit

2-2. Wired Remote Controller <TAR-40MAA> <TAC-YT53CRAU>

: Supported : Unsupported

Function TAR-40MAA TAC-YT53CRAU

Slim CITY MULTI

Body Product size H × W × D (mm) 120 × 120 × 14.5 120 × 70 × 14.5

LCD Full Dot LCD Partial Dot LCD

Backlight

Energy saving Energy saving operation schedule

Automatic return to the preset temperature

Restriction Setting the temperature range restriction

Function* Operation lock function

Weekly timer

ON/OFF timer

High Power

Manual vane angle

*Some functions may not be available depending on model types.

Wired remote controller function

The functions which can be used are restricted according to each model.

Drain pipe

Filter

Vane

Gas pipe

Liquid pipe

Air outlet

Air intake

(Intake grille)

i-See sensor

(Option)

Signal receiver

(Option)

Model name

indication for

MAIN UNIT

Model name

indication for GRILLE

OCHT746A 5

2-2-1. Wired Remote Controller <TAR-40MAA>

Function buttons

OFF

RETURN SELECT

HOLD

When the backlight is off, pressing any button turns the backlight on

and does not perform its function. (except for the [ON/OFF] button)

The functions of the function buttons change depending on the

screen.

Refer to the button function guide that appears at the bottom of

the LCD for the functions they serve on a given screen.

When the system is centrally controlled, the button function

guide that corresponds to the locked button will not appear.

Press to turn ON/OFF the indoor unit.

This lamp lights up in green while the unit is in operation. It blinks

while the remote controller is starting up or when there is an error.

1[ON/OFF] button 6ON/OFF lamp

Press to save the setting.

When the Main menu is displayed, pressing this button will

enable/disable the HOLD function.

Main display: Press to change the operation mode.

Menu screen: The button function varies with the screen.

2 [SELECT] button

7 Function button [F1]

Press to return to the previous screen. Main display: Press to decrease temperature.

Main menu: Press to move the cursor left.

Menu screen: The button function varies with the screen.

3[RETURN] button 8Function button [F2]

4[MENU] button

9Function button [F3]

Press to bring up the Main menu.

Main display: Press to increase temperature.

Main menu: Press to move the cursor right.

Menu screen: The button function varies with the screen.

Operation settings will appear.

When the backlight is off, pressing any button turns the

backlight on and it will stay lit for a certain period of time de-

pending on the screen.

Main display: Press to change the fan speed.

Menu screen: The button function varies with the screen.

5Backlit LCD

0Function button [F4]

Fri

Room

Set temp.

Mode Temp. Fan

Cool

Main Main menu

Energy saving

Main menu: RETURN

Cursor

Operation

Vane·Louver·Vent. (Lossnay)

High power

Comfort

Main menuMain display

Menu screen

7 8 9 0

Function guide

Auto

Controller interface

6 7

OCHT746A

The main display can be displayed in two different modes: “Full” and “Basic”. The initial setting is “Full”. To switch to the “Basic”

mode, change the setting on the Main display setting. (Refer to operation manual included with remote controller.)

All icons are displayed for explanation.

Most settings (except ON/OFF, mode, fan speed, temperature) can be made from the Main menu. (Refer to Page 7.)

1Operation mode

2Preset temperature

3Clock

4Fan speed

Functions of the corresponding buttons appear here.

5Button function guide

Appears when the ON/OFF operation is centrally controlled.

Appears when the operation mode is centrally controlled.

Appears when the preset temperature is centrally controlled.

Appears when the lter reset function is centrally controlled.

Indicates when lter needs maintenance.

1Room temperature

Appears when the buttons are locked.

Appears when the Weekly timer is enabled.

Appears while the units are operated in the energy saving

mode. (Will not appear on some models of indoor units)

Appears when the built-in thermistor on the remote control-

ler is activated to monitor the room temperature (1).

appears when the thermistor on the indoor unit is acti-

vated to monitor the room temperature.

Appears when an energy saving operation is performed us-

ing a “3D i-See sensor” function.

Indicates the louver setting.

Indicates the ventilation setting.

Appears when the preset temperature range is restricted.

Indicates the vane setting.

)

Fri

Mode Temp. Fan

Room

Cool Set temp. Auto

2 34 5 6 7 8

)

Fri

Cool

Mode Temp. Fan

Set temp. Auto

Display

Appears when the On/Off timer or Auto-off timer function is enabled.

appears when the timer is disabled by the centralized control system.

Appears while the outdoor units are operated in the silent mode.

Appears for a certain period of time when a centrally-con-

trolled item is operated.

#Centrally controlled

A check code appears during the preliminary error.

$Preliminary error display

OCHT746A

Not all functions are available on all models of indoor units.

Energy saving

Main menu

Operation

Initial setting menu

Manual vane angle

ON/OFF timer

Auto return

Clock

Main/Sub

Temp. range

Auto-OFF timer

Schedule

Daylight saving time

Clock

Administrator password

Operation locked

3D i-See sensor

High power

Vane · Louver · Vent. (Lossnay)

Comfort

Timer

Energy saving

Basic setting

Display setting

Operation setting

Restriction

Weekly timer

OU silent mode

Timer menu

Main display

Display details

Contrast • Brightness

Language selection

Auto mode

Setback mode

Continue to the next page.

OCHT746A 8

Maintenance menu

Service menu

Drain pump test run

Serial No. input

Diagnosis

Initialize remote controller

Remote controller information

Initialize maintenance info.

Test run

Model name input

Function setting

Lossnay

Error history

Maintenance password

Dealer information input

Error information

Test run menu

Maintenance information

Filter information

Cleaning

Settings menu

Check menu

Other menu

Auto descending panel

Descending operation

Self check

Descending adjustment

Remote controller check

Continue from the previous page.

Not all functions are available on all models of indoor units.

OCHT746A

Main

menu Setting and display items Setting details

Operation

Vane · Louver · Vent.

(Lossnay)

Use to set the vane angle.

• Select a desired vane setting from 5 different settings.

Use to turn ON/OFF the louver.

• Select a desired setting from "ON" and "OFF."

Use to set the amount of ventilation.

• Select a desired setting from "Off," "Low," and "High."

High power *3Use to reach the comfortable room temperature quickly.

• Units can be operated in the High-power mode for up to 30 minutes.

Comfort Manual

vane angle

Use to x each vane angle.

3D i-See sensor Use to set the following functions for 3D i-See sensor.

• Air distribution • Energy saving option • Seasonal airow

Timer Timer ON/OFF timer *1Use to set the operation ON/OFF times.

• Time can be set in 5-minute increments.

Auto-Off

timer

Use to set the Auto-Off time.

• Time can be set to a value from 30 to 240 in 10-minute increments.

Weekly timer *1, *2Use to set the weekly operation ON/OFF times.

• Up to 8 operation patterns can be set for each day.

(Not valid when the ON/OFF timer is enabled.)

OU silent mode *1, *3Use to set the time periods in which priority is given to quiet operation of

outdoor units over temperature control. Set the Start/Stop times for each day

of the week.

•Select the desired silent level from "Normal," "Middle," and "Quiet."

Energy

saving

Restriction

Temp. range *2Use to restrict the preset temperature range.

• Different temperature ranges can be set for different operation modes.

Operation locked Use to lock selected functions.

• The locked functions cannot be operated.

Energy

saving

Auto return *2Use to get the units to operate at the preset temperature after performing

energy saving operation for a specied time period.

• Time can be set to a value from 30 and 120 in 10-minute increments.

(This function will not be valid when the preset temperature ranges are restricted.)

Schedule *1Set the start/stop times to operate the units in the energy saving mode for

each day of the week, and set the energy saving rate.

• Up to 4 energy saving operation patterns can be set for each day.

• Time can be set in 5-minute increments.

• Energy saving rate can be set to a value from 0% or 50 to 90% in 10% increments.

Main menu list

Continue to the next page.

*1Clock setting is required.

*22°F (1°C) increments.

*3This function can only be set when certain outdoor units are connected.

10 11

OCHT746A

Main

menu Setting and display items Setting details

Initial

setting

Basic

setting

Main/Sub When connecting 2 remote controllers, one of them needs to be designated as

a sub controller.

Clock Use to set the current time.

Daylight

saving time

Set the daylight saving time.

Administrator

password

The administrator password is required to make the settings for the following

items.

• Timer setting • Energy saving setting • Weekly timer setting

• Restriction setting • Outdoor unit silent mode setting • Night set back

Display

setting

Main display Use to switch between "Full" and "Basic" modes for the Main display, and use

to change the background colors of the display to black.

Display details Make the settings for the remote controller related items as necessary.

Clock: The initial settings are "Yes" and "24h" format.

Temperature: Set either Celsius (°C) or Fahrenheit (°F).

Room temp. : Set Show or Hide.

Auto mode: Set Auto mode display or Only Auto display.

Contrast •

Brightness

Use to adjust screen contrast and brightness.

Language

selection

Use to select the desired language.

Operation

setting

Auto mode Whether or not to use Auto mode can be selected by using the button.

This setting is valid only when indoor units with Auto mode function are

connected.

Setback mode Whether or not to use Setback mode can be selected by using the button.

This setting is valid only when indoor units with Setback mode function are

connected.

Mainte-

nance

Error information Use to check error information when an error occurs.

• Check code, error source, refrigerant address, model name, manufacturing number,

contact information (dealer's phone number) can be displayed.

(The model name, manufacturing number, and contact information need to be

registered in advance to be displayed.)

Filter information Use to check the lter status.

• The lter sign can be reset.

Cleaning

Auto

descending

panel

Use to lift and lower the auto descending panel (Optional parts).

Service Test run Select "Test run" from the Service menu to bring up the Test run menu.

• Test run • Drain pump test run

Input maintenance Select "Input maintenance Info." from the Service menu to bring up the

Maintenance information screen.

The following settings can be made from the Maintenance Information screen.

• Model name input • Serial No. input • Dealer information input • Initialize

maintenance info.

Settings Function setting Make the settings for the indoor unit functions via the remote controller as

necessary.

LOSSNAY setting

This setting is required only when the operation of CITY MULTI units is

interlocked with LOSSNAY units.

Check

Error history

Display the error history and execute "delete error history".

Diagnosis Self check: Error history of each unit can be checked via the remote controller.

Remote controller check: When the remote controller does not work properly, use

the remote controller checking function to troubleshoot the problem.

Others Maintenance

password

Use to change the maintenance password.

Initialize remote

controller

Use to initialize the remote controller to the factory shipment status.

Remote control-

ler information

Use to display the remote controller model name, software version, and serial

number.

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