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AIR CONDITIONER (MULTI TYPE)
Installation Manual
Indoor Unit
Model name:
Concealed Duct High Static Pressure Type
MMD-UB0241HP-UL
MMD-UB0301HP-UL
MMD-UB0361HP-UL
MMD-UB0481HP-UL
MMD-UB0541HP-UL
01_IM_1128950315_EN.indd 1
01_IM_1128950315_EN.indd 1
For commercial use
Pour usage commercial
Para uso comercial
1128950315
English
1
Installation Manual
Français
32
Manuel d'Installation
Español
Manual de Instalación
64
11/9/2567 BE 16:14
11/9/2567 BE 16:14
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Summary of Contents for Toshiba MMD-UB0241HP-UL
- Page 1 1128950315 AIR CONDITIONER (MULTI TYPE) Installation Manual Indoor Unit For commercial use Model name: Pour usage commercial Para uso comercial Concealed Duct High Static Pressure Type MMD-UB0241HP-UL MMD-UB0301HP-UL MMD-UB0361HP-UL MMD-UB0481HP-UL MMD-UB0541HP-UL English Installation Manual Français Manuel d’Installation Español Manual de Instalación 01_IM_1128950315_EN.indd 1...
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Page 2: Table Of Contents
– 1 – Original instruction Generic Denomination: Air Conditioner Definition of Qualified Installer or Qualified Service Person Please read this Installation Manual carefully before installing the Air Conditioner. The air conditioner must be installed, maintained, repaired and removed by a qualified installer or qualified service •... - Page 3 ■ Warning indications on the air conditioner unit Definition of Protective Gear When the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective gloves and ‘Safety’ work clothing. In addition to such normal protective gear, wear the protective gear described below when undertaking the special Warning indication Description work detailed in the following table.
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Page 4: Precautions For Safety
– 3 – • Only a qualified installer or qualified service person is allowed to Precautions for safety undertake work at heights using a stand of 19.7″ (50 cm) or more or to remove the intake grille of the indoor unit to The manufacturer shall not assume any liability for the damage undertake work. -
Page 5: Selection Of Installation Location
• Do not move or repair any unit by yourself. Must be done by Installation qualified installer or qualified service person. Special precaution • Suction duct length must be longer than 33.5” (850 mm). should be taken when removing the cover for the unit to avoid •... -
Page 6: Electrical Wiring
– 5 – • After the installation work, confirm that refrigerant gas does not • Install a circuit breaker that meets the specifications in the leak. If refrigerant gas leaks into the room and flows near a fire Installation Manual and the stipulations in the local regulations source, such as a cooking range, noxious gas may be generated. -
Page 7: New Refrigerant Air Conditioner Installation
• Upon completion of the installation work, check for refrigerant CAUTION leaks and check the insulation resistance and water drainage. New refrigerant air conditioner installation Then conduct a test run to check that the air conditioner is • This Air Conditioner uses R454B an environmentally friendly operating properly. -
Page 8: Accessory Parts
– 7 – Accessory parts Selection of installation place „ Accessory parts Avoid installing in the following places Select a location for the indoor unit where the cool or warm air will circulate evenly. Avoid installation in the following kinds of locations. Part name Q’ty Shape... -
Page 9: Installation
„ Installation under high-humidity atmosphere Installation In some cases including the rainy season, especially inside of the ceiling may become high-humidity atmosphere (dew-point temperature: 73.4 °F (23 °C) or higher). CAUTION 1. Installation to inside of the ceiling with tiles on the roof 2. - Page 10 – 9 – „ Installation of hanging bolt „ Installation of indoor unit „ Removing the foamed polystyrene and three plates for transportation. y Consider the piping / wiring after the unit is hung to Treatment of ceiling determine the location of the indoor unit installation The ceiling differs according to structure of building.
- Page 11 „ Installation electrical cover 2 holes type Attach the Electrical control box cover to unit. REQUIREMENT Attach the screws 4 parts • In case of group control, electrical cover 1 hole type need to change to electrical cover 2 holes type. Remove Electrical control box cover.
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Page 12: Drain Piping
– 11 – „ Gravitational drainage Drain piping Reattach the drain cap. CAUTION * For gravitational drainage, remove the white connector (CN504) on the upper left of the circuit board in the Following the Installation Manual, perform the drain piping work so that water is properly drained. Upper pipe electrical control box. - Page 13 „ Check the draining „ Insulation process In the test run, check that water drain is properly performed and water does not leak from the connecting part of the y As shown in the figure, cover the flexible hose and hose band with the attached insulation up to the bottom of the pipes.
- Page 14 – 13 – „ Fan characteristics UB0241 type UB0301 type UB0361 type Standard air flow: 705 CFM Standard air flow: 885 CFM Standard air flow: 1130 CFM 1.30 1.30 1.30 1.20 1.20 1.20 1.10 1.10 1.10 1.00 1.00 1.00 1.0 in.WG- High tap 0.90 0.90 0.90...
- Page 15 The concealed high static pressure duct unit has 7 steps of static pressure (0.2-1.0 in. WG) adjustment to meet the installation site requirements / conditions. With these steps there are different speed fan taps associated to select correct air flow. For meeting the site requirement / conditions, make sure the external static pressure and air flow are determined.
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Page 16: Duct Design
– 15 – Duct design „ Duct design „ Arrangement (Unit: in (mm)) Referring to the following dimensions, manufacture duct at the local site. In order to prevent short circuits, design the duct work so that the intake and discharge openings are not adjacent to UB0241, UB0301 UB0361, UB0481, UB0541 each other. -
Page 17: Refrigerant Piping
„ Evacuation y The sealed gas was sealed at the atmospheric Refrigerant piping pressure so when the flare nut is removed, there „ Connecting refrigerant piping will no “whooshing” sound: This is normal and is not Perform vacuuming from the charge port of valve of indicative of trouble. -
Page 18: Electrical Connection
– 17 – Insulation process Electrical connection Apply insulation for the pipes separately at liquid side and gas side. y For the insulation to the pipes at gas side, be sure to use the material with heat-resisting temperature 248 °F (120 °C) or higher. „... - Page 19 MOCP y U (v, h, c) line means of control wiring. Model Power Supply Uv line : Between indoor and outdoor units. MMD-UB0241HP-UL 2.59 Uh line : Central control line. Uc line : Between outdoor and outdoor units. MMD-UB0301HP-UL 2.99 y Uv line and Uc line are independent from another refrigerant line.
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Page 20: Remote Controller Wiring
– 19 – <In the case of combining with outdoor units other than Super Modular Multi System u series (SMMS-u)> Remote controller wiring 2-core with non-polarity wire is used for wiring of the remote control wiring and group remote controls wiring. Control wiring between indoor units, and outdoor unit (L2, L3) (2-core shield wire, non-polarity) Remote control wiring, remote control inter-unit wiring... -
Page 21: Wiring Diagram
„ Wiring between indoor unit and outdoor unit „ Wire connection NOTE REQUIREMENT An outdoor unit connected with control wiring between indoor and outdoor units wire becomes automatically the header unit. y Connect the wires matching the terminal numbers. Incorrect connection causes a trouble. y Pass the wires through the bushing of wire connection holes of the indoor unit. -
Page 22: Applicable Controls
– 21 – Applicable controls Press [ ] to black highlight the item code (DN), and then press [ ] and [ ]to set the item code „ Basic procedure for REQUIREMENT Press [ ] to black highlight the data, and changing settings When the unit is used for the first time, it takes then press [... - Page 23 „ External static pressure „ Filter sign setting „ Group control settings According to the installation condition, the filter sign In a group control, a remote controller can control term (Notification of filter cleaning) can be changed. up to maximum 8 or 16 units. (Depending on the <Change on wired remote controller>...
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Page 24: Test Run
– 23 – Test run In the “Field setting menu” screen, press ] and [ ] to select “Test mode”, and then press Set/Fix] „ Before test run „ Execute a test run Test mode is set, and returns to the “Field setting menu”... -
Page 25: Wireless Remote Controller
„ When a test run is not Wireless remote controller Maintenance performed properly When TEMPORARY button is pushed for 10 seconds or more, “Pi!” sound is heard y When a test run is not performed properly, refer CAUTION and the operation changes to test run. to the error code and the part to be checked on After approx. -
Page 26: Troubleshooting
– 25 – q Periodic Maintenance Troubleshooting For environmental conservation, it is strongly recommended that the indoor and outdoor units of the air conditioner in use be cleaned and maintained regularly to ensure efficient operation of the air conditioner. „ Confirmation and check When the air conditioner is operated for a long time, periodic maintenance (once a year) is recommended. - Page 27 Check method On the wired remote controller, central control remote controller and the interface P.C. Board of the outdoor unit (I/F), a check display LCD (Remote controller) or 7-segment display (on the outdoor interface P.C. Board) to display the operation is provided.
- Page 28 – 27 – Check code Wireless remote controller Outdoor unit 7-segment display Sensor block display of receiving unit Check code name Judging device Wired remote controller display Auxiliary code Operation Timer Ready Flash 01: TL1 sensor 02: TL2 sensor TL1,TL2 or TL3 sensor trouble 03: TL3 sensor ─...
- Page 29 Check code Wireless remote controller Outdoor unit 7-segment display Sensor block display of receiving unit Check code name Judging device Wired remote controller display Auxiliary code Operation Timer Ready Flash Model mismatch of indoor and outdoor unit Detected indoor unit address Indoor unit incompatible with A2L (R32) refrigerant ─...
- Page 30 – 29 – Check code Wireless remote controller Outdoor unit 7-segment display Sensor block display of receiving unit Check code name Judging device Wired remote controller display Auxiliary code Operation Timer Ready Flash 1 ✱: Compressor 1 side Outdoor unit fan inverter trouble Inverter 2 ✱: Compressor 2 side 1 ✱: Comp.
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Page 31: Warnings On Refrigerant Leakage
Warnings on Refrigerant Leakage Important Check of concentration limit 2) When there is an effective opening with the adjacent room for ventilation of leaking refrigerant gas (opening without a door, or an opening 0.15% or larger than the respective floor spaces at the top or bottom of the The room in which the air conditioner is to be installed requires a design that in the event of refrigerant gas door). - Page 32 – 31 – 61-EN 62-EN 01_IM_1128950315_EN.indd 31 01_IM_1128950315_EN.indd 31 11/9/2567 BE 16:14 11/9/2567 BE 16:14...
- Page 33 144/9 MOO 5, BANGKADI INDUSTRIAL PARK, TIVANON ROAD, TAMBOL BANGKADI, AMPHUR MUANGPATHUMTHANI, PATHUMTHANI 12000, THAILAND 1128950315 01_IM_1128950315_EN.indd 32 01_IM_1128950315_EN.indd 32 11/9/2567 BE 16:14 11/9/2567 BE 16:14...
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