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Toshiba MMD-AP0481HFE Installation Manual

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AIR CONDITIONER (MULTI TYPE)

Installation Manual

Indoor Unit
For commercial use
Model name:
Concealed Duct Type Fresh Air Intake Unit
MMD-AP0481HFE
MMD-AP0721HFE
MMD-AP0961HFE
English
Installation Manual

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  Summary of Contents for Toshiba MMD-AP0481HFE

  • Page 1: Installation Manual

    AIR CONDITIONER (MULTI TYPE) Installation Manual Indoor Unit For commercial use Model name: Concealed Duct Type Fresh Air Intake Unit MMD-AP0481HFE MMD-AP0721HFE MMD-AP0961HFE English Installation Manual...
  • Page 2: Table Of Contents

    Toshiba Carrier Corporation or, alternatively, he or she has been 13 Maintenance ............18 instructed in such matters by an individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to this work.
  • Page 3: Warning Indications On The Air Conditioner Unit

    Definition of Protective Gear Warning indications on the air conditioner unit When the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective gloves and ‘safety’ work clothing. Warning indication Description In addition to such normal protective gear, wear the protective gear described below when undertaking the special work detailed in the table below.
  • Page 4: Precautions For Safety

    – 3 – Precautions for safety Installation • Suction duct length must be longer than 850 mm. • When the indoor unit is to be suspended, the designated hanging bolts (M10 or W3/8) and nuts (M10 or W3/8) must The manufacturer shall not assume any liability for the damage caused by not observing the description of this be used.
  • Page 5 Test run CAUTION • Before operating the air conditioner after having completed the work, check that the electrical parts box cover of the indoor unit and service panel of the outdoor unit are closed, and set the circuit breaker to the ON position. You may New Refrigerant Air Conditioner Installation receive an electric shock if the power is turned on without first conducting these checks.
  • Page 6: Accessory Parts

    – 5 – Accessory parts System control of fresh air intake unit Part name Q’ty Shape Usage System able to be combined Owner’s Manual — (Be sure to hand over to customers) Installation Manual This manual (Be sure to hand over to customers) The fresh air intake unit is connectable to SMMS (Super Modular Multi system).
  • Page 7: Selection Of Installation Place

    Selection of installation place Installation space Keep the space necessary for installation and service. Avoid installing in the following places. REQUIREMENT Select a location for the indoor unit where the cool or warm air will circulate evenly. Avoid installation in the following kinds of locations. 1.
  • Page 8: Installation

    – 7 – Installation Treatment of ceiling The ceiling differs according to structure of building. For details, consult your constructor or interior finish contractor. WARNING In the process after the ceiling board has been removed, it is important to reinforce ceiling foundation (frame) and Install the air conditioner certainly to sufficiently withstand the weight.
  • Page 9: Duct Work

    Installation of indoor unit Duct work Install temporarily the indoor unit. CAUTION Attach the hanging bracket to the hanging bolt. Be sure to fix the hanging bracket from both up and down sides of the hanging bracket by using the nuts (M10 Be sure to apply heat insulation to the duct to prevent dewy condition.
  • Page 10 – 9 – Connecting flange <Example of construction> Refer to size in the figure attached to the main unit. High-efficiency filter (Sold separately) <MMD-AP048 type> <MMD-AP072 type, AP096 type> Long life prefilter (Sold separately) <Air supply port connecting flange> <Air supply port connecting flange> 1130 Air supply duct *1 Air supply flange...
  • Page 11: Fan Characteristics

    Fan characteristics <MMD-AP072 type> (Standard air volume: 1680 m /h, Lower limit air volume: 1176 m /h, Upper limit air volume: 1848 m Fan characteristics 50 Hz, 220 V 50 Hz, 240 V <MMD-AP048 type> (Standard air volume: 1080 m /h, Lower limit air volume: 756 m /h, Upper limit air volume: 1188 m 50 Hz, 220 V...
  • Page 12 – 11 – Wire connection change of fan motor <MMD-AP096 type> (Standard air volume: 2100 m /h, Lower limit air volume: 1470 m /h, Upper limit air volume: 2310 m The motor wires for the fan have been connected to at shipment from the factory.
  • Page 13: Drain Piping

    Drain piping Check the draining Check the water drainage is surely performed at the test run. Check also no water leakage is found at the pipe connecting part. CAUTION Following the Installation Manual, perform the drain piping work that water is properly drained, and apply a heat Service panel insulation not to cause a dew condensation.
  • Page 14: Refrigerant Piping

    – 13 – Refrigerant piping • Tightening torque of flare pipe connections. • Turn back the pipe heat insulator and tie up with a Pressure of R410A is higher than that of R22. banding band. (Approx. 1.6 times) Therefore, using a torque Projection margin in flaring: B (Unit: mm) Tie up with a banding band.
  • Page 15: Electrical Connection

    ▼ Power supply Electrical connection 220-240 V ~, 50 Hz Power supply 220 V ~, 60 Hz WARNING Power supply switch / circuit breaker or power supply wiring / fuse rating for indoor units should be selected by the accumulated total current values of the indoor units. •...
  • Page 16: Remote Controller Wiring

    – 15 – Wiring between indoor and outdoor units Wire connection REQUIREMENT CAUTION • Connect the wires matching the terminal numbers. Incorrect connection causes a trouble. The fresh air intake unit and indoor unit for air conditioning cannot be controlled as a group. •...
  • Page 17: Applicable Controls

    Applicable controls Each time button is pushed, indoor Filter sign setting unit numbers in the control group change cyclically. Select the indoor unit to change According to the installation condition, the filter sign Basic procedure for changing REQUIREMENT settings for. term (Notification of filter cleaning) can be changed.
  • Page 18: Test Run

    – 17 – Test run Select the operation mode with button, [ Cool] or [ Heat]. • Do not run the air conditioner in a mode other than [ Cool] or [ Heat]. • The temperature controlling function does not work during test run. •...
  • Page 19: Maintenance

    ▼ Periodic Maintenance Maintenance 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. <Daily maintenance> When the air conditioner is operated for a long time, periodic maintenance (once a year) is recommended. Furthermore, regularly check the outdoor unit for rust and scratches, and remove them or apply rustproof ▼...
  • Page 20: Troubleshooting

    – 19 – Troubleshooting Check method On the wired remote controller, central control remote controller and the interface P.C. board of the outdoor unit (I/ F), or 7-segment display (on the outdoor interface P.C. board) to display the operation is provided. Therefore the operation status can be known.
  • Page 21 Check code Check code Wired Outdoor unit 7-segment display Wired Outdoor unit 7-segment display Check code name Judging device Check code name Judging device remote remote controller controller Auxiliary code Auxiliary code display display 02:No header unit — Low pressure protective operation Error in number of heat storage 00:Multiple number of header master units...
  • Page 22 — — Decrease of No. of indoor units — Discharge temp. TD2 error — Discharge temp. TD3 error TCC-LINK: TOSHIBA Carrier Communication Link. Detected outdoor unit number 4-way valve inverse error High-pressure protective — operation 0*:IGBT circuit 1*:Position detective circuit error...
  • Page 23 Warnings on Refrigerant Leakage Important Check of Concentration Limit The room in which the air conditioner is to be installed requires a design that in the event of refrigerant 2) When there is an effective opening with the adjacent room for ventilation of leaking refrigerant gas (opening gas leaking out, its concentration will not exceed a set limit.
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This manual is also suitable for:

Mmd-ap0721hfeMmd-ap0961hfe