Toshiba MMY-MAP0804T8P-SG User Manual

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2-2. Outdoor Unit (60Hz model: MMY-MAP 4HT7)

Name Model Specification

MMY-MAP0804

MMY-MAP1004

MMY-MAP1204

MMY-MAP1404

MMY-MAP1604

1 Compressor DA421A3FB-29M Output: 2.3kW×2 O

1 Compressor DA421A3FB-29M Output: 3.1kW×2 O

1 Compressor DA421A3FB-29M Output: 4.2kW×2 O

1 Compressor DA421A3FB-29M Output: 3.0kW×3 O

1 Compressor DA421A3FB-29M Output: 3.6kW×3 O

2 4-way valve coil STF AC208-230V 60Hz O O O O O

3 Pulse motor valve coil HAM-MD12TF-6 DC12V O O O O O

2-way valve coil VPV AC208-230V 60Hz

SV2,SV3A,SV3B,SV3C,SV3D,SV3E

O O O

AC208-230V 60Hz

SV2,SV3A,SV3B,SV3C,SV3D,SV3E,SV3F,SV6

O O

2-way valve coil FQ-D640 AC208-230V 60Hz

SV41,SV42,SV5

O O O

AC208-230V 60Hz

SV41,SV42,SV43

O O

6 High-pressure SW ACB-4UB32W OFF:3.73MPa ON:2.9MPa O O O O O

7 Pressure sensor (For high pressure) NSK-BC038F-067 0.5~4.3V/0~3.73MPa O O O O O

8 Pressure sensor (For low pressure) NSK-BC010F-067 0.5~3.5V/0~0.98MPa O O O O O

9 Fan motor STF-340A1000-1 DC280V/1kW O O O O O

10 Case heater (For comp.) AC240V/29W O O O O O

11 Case heater (For accum.) AC240V/55W O O O O O

12 Fusible plug 73°C O O O O O

Questions and Answers:

S
Shane LopezAug 6, 2025
What to do if the Toshiba Air Conditioner indoor remote controller is not accepted and a check code is displayed?
- L
  Lori JohnsonAug 6, 2025
  If the indoor remote controller isn't working and a check code appears on the interface PC board of the header unit, the issue might stem from unset addresses or incorrect power settings. Start by setting up the addresses for the line and indoor units. If you're using group control, make sure a group address is set up. Also, confirm that the indoor unit power is turned on, ensuring you power on the indoor units before the outdoor units. Finally, check that the indoor/outdoor communication line is correctly connected to the U1/U2 terminal of the header unit.
J
janethowardAug 16, 2025
What to do if my Toshiba Air Conditioner is not accepting operation from the indoor remote controller?
- N
  nmeltonAug 16, 2025
  If your Toshiba Air Conditioner indoor unit isn't responding to the remote controller and there's no check code on the header unit's interface PC board, the problem likely lies in the communication wiring or address settings. First, check the communication line between the indoor and outdoor units and modify the wiring if necessary. Next, ensure that both the line address and indoor address are correctly set for the unit that's not responding. If you are using indoor group control, make sure that the power of the header unit of the group is turned on. If the unit is under individual control, verify that the group address is set to “0”. Finally, confirm that the power is turned on for the unit and that the indoor remote controller is properly wired.