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10

Maintenance

CAUTION

CAUTION

Before maintenance, be sure to turn off the circuit 
breaker.

Do not clean the filter with all the hooks of the 
center panel disengaged and with only one or two 
wires still attached to the center panel. Doing so 
may cause the center panel to fall down, possibly 
causing injury to any individuals below.

Cleaning of air filter

• Clogging of the air filter reduce cooling / heating 

performance.

Cleaning of panel and air filter

1

Turn off the air conditioner 

Set the circuit breaker to OFF.

2

Open the center panel

• Loosen the screws on the center panel holders 

fixed to the frame covers by turning them about 
three times. There is a frame cover on each long 
side of the panel.
While removing the center panel, as the panel 
moves, the panel pushes the center panel 
holders and makes the holders slide.

• The direction in which the center panel opens is 

fixed.
The side that moves when the edge of the 
center panel is pushed upward is the end that 
opens; the end that barely moves is the hooking 
side.

1) While pushing the edge at the opening side of 

the center panel upward (1), pull the panel 
toward the opening side (2).

2) When the panel is pulled toward the opening 

side, the hooking side drops down by one step, 
and the hooks at the opening side are 
disengaged.

* Take hold of the center panel near the hooks at both 

ends, and disengage the opening side hooks one at 

a time.

If the center panel holders refuse to slide, loosen the 

screws a little more using the screwdriver.

3) Once you have checked that the hooking side 

at both ends has dropped down by one step, 
slowly rotate the panel downward (3), and open 
it.

* The center panel opens until there is no more slack 

in the wires at both ends.

Center panel

holder

Center panel

Screw

Center panel 

holder

Frame cover

Screw

Frame cover

Center panel holder

Slide

Center panel holder

(1)

(2)

(1)

(2)

This side 

drops down 

one step.

Center panel

(3)

Wire

Hooks

3

Remove the air filter

Take hold of the air filter knobs, and while pushing 
the filter diagonally (1), pull it downward (2), and 
remove it from the openings of the center panel.

4

Remove the dust using a vacuum cleaner or 
rinsing it off in water

• When dust has accumulated on the filter, it can 

be cleaned effectively using lukewarm or cold 
water into which some neutral detergent has 
been dissolved.

• After rinsing off the filter, allow it dry out in the 

shade.

5

Mount the air filter

Insert the air filter until it touches the back surface. 
Take hold of the knobs, raise the air filter until it 
touches the back surface, left go of the knobs, and 
install.

6

Close the center panel

• Slowly rotate the center panel upward (1), and 

close it.

• With the opening side of the center panel now 

closed, while lifting the step of the hooking side 
(2), slide the center panel toward the hooking 
side (3), and secure it.

* Take hold of the center panel near the hooks at both 

ends, and engage the hooks one at a time.

7

Return the center panel holders to their 
original positions, and tighten the two 
screws at the left and two screws at the right 
(total: 4 screws) using the screwdriver.

Make sure that the center panel is securely fixed 
with the center panel holders and does not open.

8

Check the filter

From the two intakes, check that the filter tabs are 
not disengaged. If they are, take hold of the knobs, 
and push the filter in so that the tabs are inserted.

9

Set the circuit breaker to ON.

CAUTION

CAUTION

Do not start the air conditioner while leaving the panel 
and air filter removed.

(1)

(2)

Tab

Knob

Air filter

Air filter

(1)

Hooks

Center panel

(2)

(3)

(2)

(3)

Step

45-EN

46-EN

Summary of Contents for MMU-UP0071WH-E

Page 1: ...ual R410A Indoor Unit 2 way Cassette Type MMU UP0071WH E MMU UP0091WH E MMU UP0121WH E MMU UP0151WH E MMU UP0181WH E MMU UP0241WH E MMU UP0271WH E MMU UP0301WH E MMU UP0361WH E MMU UP0481WH E MMU UP0561WH E Model name For commercial use English ...

Page 2: ...Link are combined with models other than U series TCC Link the wiring specifications and maximum number of connectable indoor units will be changed Pay attentions to their communication specifications when carrying out the installation maintenance or repair For its details refer to the Electrical connection in this Manual Contents 1 Precautions for safety 3 2 Accessory parts 7 3 Selection of insta...

Page 3: ...e knowledge related to these operations The qualified service person who is allowed to do the electrical work involved in installation repair relocation and removal has the qualifications pertaining to this electrical work as stipulated by the local laws and regulations and he or she is a person who has been trained in matters relating to electrical work on the air conditioners made by Toshiba Car...

Page 4: ...fferent from the one specified for complement or replacement Otherwise abnormally high pressure may be generated in the refrigeration cycle which may result in a failure or explosion of the product or an injury to your body Before opening the intake grille of the indoor unit or service panel of the outdoor unit set the circuit breaker to the OFF position Failure to set the circuit breaker to the O...

Page 5: ...f air conditioner otherwise it may cause imperfect combustion Installation When the indoor unit is to be suspended the designated hanging bolts M10 or W3 8 and nuts M10 or W3 8 must be used Install the air conditioner securely in a location where the base can sustain the weight adequately If the strength is not enough the unit may fall down resulting in injury Follow the instructions in the Instal...

Page 6: ...t first conducting these checks If there is any kind of trouble such as check code display has appeared smell of burning abnormal sounds the air conditioner fails to cool or heat or water is leaking has occurred in the air conditioner do not touch the air conditioner yourself but set the circuit breaker to the OFF position and contact a qualified service person Take steps to ensure that the power ...

Page 7: ...oil enter the refrigerating cycle during installation work To prevent charging an incorrect refrigerant and refrigerating oil the sizes of connecting sections of charging port of the main unit and installation tools are changed from those for the conventional refrigerant Accordingly the exclusive tools are required for the R410A refrigerant For connecting pipes use new and clean piping designed fo...

Page 8: ...not cause any problem Avoid installing in the following places Place exposed to air with high salt content seaside area or place exposed to large quantities of sulfide gas hot spring The unit should be used in these places special protective measures are needed A kitchen in restaurant or places around machines and equipment in a factory where a lot of oils are used Oil adhering to the heat exchang...

Page 9: ...h as the location where the indoor unit is installed or the structure of the room For details on the setting refer to the section Installing indoor unit on high ceiling and To secure better effect of heating in Applicable controls of this manual Model MMU Height A UP007 to UP015 300 mm or more UP018 to UP056 350 mm or more Model MMU UP007 to UP030 UP036 to UP056 Set data Standard At shipment 2 7 2...

Page 10: ... mm Refrigerant pipe connecting port Model MMU Gas side A UP007 to UP012 9 5 UP015 12 7 C L C L 680 620 380 880 1000 1050 10 0 B 815 295 20 151 A B C D C B A F G H I J O A Panel external dimension I Ceiling bottom surface B Ceiling opening dimension J Ceiling panel Sold separately C Hanging bolt pitch K Refrigerant pipe connecting port Liquid D Electrical control box L Refrigerant pipe connecting ...

Page 11: ... Refrigerant pipe connecting port Liquid D Electrical control box L Refrigerant pipe connecting port Gas E Knockout square hole for auxiliary fresh air flange For Dia 150 Sold separately M Drain pipe connecting port Be absolutely sure to use the flexible hose provided for the connection here F Knockout hole N Take in port of wires G Unit external dimension O Wireless signal receiving unit mounting...

Page 12: ...ontrol box L Refrigerant pipe connecting port Gas E Knockout square hole for auxiliary fresh air flange For Dia 150 Sold separately M Drain pipe connecting port Be absolutely sure to use the flexible hose provided for the connection here F Knockout hole N Take in port of wires G Unit external dimension O Wireless signal receiving unit mounting area Sold separately H Hanging bolt M10 or W3 8 Locall...

Page 13: ...ors hole in plugs or a hole in bolts Rubber Anchor bolt Blade type bracket Slide type bracket Pipe hanging anchor bolt Hanging bolt Hanging bolt Support angle Installation of indoor unit Attach a nut M10 or W3 8 locally procured and the Dia 34 washer supplied to each hanging bolt Insert a washer on both sides of the T groove of the hanging bracket of the indoor unit and hang the indoor unit Check ...

Page 14: ... long as possible Approx 10 cm Heat insulator Incorrect VP30 Adhesive inhibited Drain pipe connecting port hard socket VP25 vinyl chloride pipe locally procured Hose band accessory Flexible hose accessory Soft socket Hard socket Socket for VP25 locally procured Indoor unit Connecting flexible hose Insert the soft end socket of the flexible hose provided into the drain pipe connecting port of the i...

Page 15: ...n the drain pump automatically starts running Check whether the water is draining from the drain pipe connecting port transparent and check that no water is leaking from the drain pipe After checking that the water drains and there are no water leaks turn off the power connect the float switch connector to its original location CN34 on the printed circuit board and return the electrical control bo...

Page 16: ...id side UP007 to UP012 9 5 6 4 UP015 UP018 12 7 6 4 UP024 to UP056 15 9 9 5 Outside diameter size mm R410A tool used Conventional tool used 6 4 9 5 0 0 5 1 0 1 5 12 7 15 9 Outside diameter size mm A 0 0 4 6 4 9 1 9 5 13 2 12 7 16 6 15 9 19 7 B A Tightening connection CAUTION CAUTION Do not apply excessive torque Otherwise the nut may crack depending on the conditions Tightening torque of flare pip...

Page 17: ...pipes completes Power supply wire and communication wires specifications Power supply wire and communication wires are locally procured For the power supply specifications follow to the table below If capacity is little it is dangerous because overheat or burnout may be caused For specifications of the power capacity of the outdoor unit and the power supply wires refer to the Installation Manual a...

Page 18: ...re models other than U series their system diagrams for the wiring specifications are the same as the system diagram above SMMS u U series In the case of combining with outdoor units other than Super Modular Multi System u series SMMS u The length of the communication line L1 L2 L3 means the total length of the inter unit wire length between indoor and outdoor units added with the central control ...

Page 19: ... Unit type Outdoor unit U series U series U series U series Indoor unit U series U series U series U series Remote controller Remote sensor U series U series U series U series Communication type TU2C Link TCC Link Max number of connectable units 16 8 L1 L L2 Ln Indoor unit Remote controller inter unit wiring Indoor unit Indoor unit Indoor unit Remote controller Remote controller wiring For number ...

Page 20: ... the terminal block 4 Using the attached thermal insulation material seal the pipe connecting port Otherwise dewing may be caused 5 Mount the cover of the electric parts box without pinching wires Mount the cover after wiring on the ceiling panel 6 Pass the wires underneath the flashing protrusion of the drain pan and stow them inside the wiring guide of the electrical parts box cover Wiring inlet...

Page 21: ...r is turned on after automatically address setup it takes up to 10 minutes usually about 3 minute for the outdoor unit to start operating after the power has been turned on Before the air conditioner was shipped from the factory all units are set to STANDARD factory default If necessary change the indoor unit settings The settings are changed by operating the wired remote controller The settings c...

Page 22: ...it is difficult to obtain satisfactory heating due to installation place of the indoor unit or structure of the room the detection temperature of heating can be raised Also use a circulator or other machinery to circulate heat air near the ceiling Follow to the basic operation procedure 1 2 3 4 5 6 7 Specify 06 for the Code No in Procedure 4 For the set data in Procedure 5 select the set data of s...

Page 23: ...usual 4 After the test run push OFF timer button to stop a test run TEST disappears on the display and the air conditioner enters the normal stop mode 4 3 1 2 3 Wireless remote controller 1 Turn on the power of the air conditioner When power is turned on for the first time after installation it takes approx 5 minutes until the remote controller becomes available In the case of subsequent power on ...

Page 24: ...ore slack in the wires at both ends Center panel holder Center panel Screw Centerpanel holder Frame cover Screw Frame cover Center panel holder Slide Center panel holder 1 2 1 2 This side drops down one step Center panel 3 Wire Hooks 3 Remove the air filter Take hold of the air filter knobs and while pushing the filter diagonally 1 pull it downward 2 and remove it from the openings of the center p...

Page 25: ...earance Replace the fan when vibration or balance is terrible Brush or wash the fan when it is contaminated Air intake discharge grilles Indoor outdoor Dust dirt scratches Fix or replace them when they are deformed or damaged Drain pan Indoor Dust dirt clogging drain contamination Clean the drain pan and check the downward slope for smooth drainage Ceiling panel louvres Indoor Dust dirt scratches ...

Page 26: ...unit side Indoor unit E06 E06 No of indoor units in which sensor has been normally received Decrease of No of indoor units I F E07 Communication circuit trouble between indoor outdoor unit Detected at outdoor unit side I F E08 E08 Duplicated indoor unit addresses Duplicated indoor unit addresses Indoor unit I F E09 Duplicated master remote controllers Remote controller E10 Communication trouble be...

Page 27: ... 03 Comp 3 side Compressor break down Compressor inverter H02 H02 01 Comp 1 side 1 Comp 1 side 02 Comp 2 side 2 Comp 2 side 03 Comp 3 side Compressor trouble lock Compressor inverter H03 H03 01 Comp 1 side 1 Comp 1 side 02 Comp 2 side 2 Comp 2 side 03 Comp 3 side Current detect circuit system trouble Compressor inverter H04 H04 Comp 1 case thermostat operation I F H05 H05 TD1 sensor miswiring I F ...

Page 28: ...2 Comp 2 side 2E Comp 2 side 03 Comp 3 side ALT Phase missing detection Power failure detection Inverter DC voltage trouble comp Inverter DC voltage trouble comp Inverter DC voltage trouble comp I F P07 P07 01 Comp 1 side 1C Comp 1 side 02 Comp 2 side 2C Comp 2 side 03 Comp 3 side 04 Heat sink ALT Heat sink overheat trouble Heat sink dew condensation trouble Compressor inverter I F P10 P10 Detecte...

Page 29: ... 2 Fan 12 Comp 2 Fan2 0B Comp 1 Comp 2 Fan 13 Comp 1 Comp 2 Fan2 0C Comp 3 Fan 18 Fan1 Fan2 0D Comp 1 Comp 3 Fan 19 Comp 1 Fan1 Fan2 0E Comp 2 Comp 3 Fan 1A Comp 2 Fan1 Fan2 0F All 1B All Inverter trouble Inverter trouble Check code Wireless remote controller Check code name Judging device Central control device indication Outdoor unit 7 segment display Sensor block display of receiving unit Auxil...

Page 30: ...A CARRIER CORPORATION 336 Tadehara Fuji shi Shizuoka ken 416 8521 JAPAN TCF holder TOSHIBA CARRIER EUROPE S A S Route de Thil 01120 Montluel FRANCE Hereby declares that the machinery described below Generic Denomination Air Conditioner Model type MMU UP0071WH E MMU UP0091WH E MMU UP0121WH E MMU UP0151WH E MMU UP0181WH E MMU UP0241WH E MMU UP0271WH E MMU UP0301WH E MMU UP0361WH E MMU UP0481WH E MMU...

Page 31: ...ooms or install mechanical ventilation combined with a gas leak detection device The concentration is as given below Refrigerant Concentration Limit shall be in accordance with local regulations NOTE 1 If there are 2 or more refrigerating systems in a single refrigerating device the amounts of refrigerant should be as charged in each independent device For the amount of charge in this example The ...

Page 32: ...ou changed lighting time of filter sign If not fill check mark in NO CHANGE and fill check mark in ITEM if changed respectively For check method refer to APPLICABLE CONTROLS in this manual Filter sign lighting time CODE NO 01 NO CHANGE NONE 0000 150 H 0001 2500 H 0002 5000 H 0003 10000 H 0004 Filter sign lighting time CODE NO 01 NO CHANGE NONE 0000 150 H 0001 2500 H 0002 5000 H 0003 10000 H 0004 F...

Page 33: ...EB99840701 ...

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