Dred (Demand Response Enabling Device); Safety Precautions; Connection Procedure - Toshiba MMY-MAP1006FT8(J)P-E Service Manual

7-9. DRED (Demand response enabling device)

(MMY-MAP***6FT8P-A)
This model supports only DRM1.

■ Safety precautions

• Read these "Safety precautions" carefully before installation.
• Install in accordance with the wiring rules (AS/NZS 3000).
• The precautions described below include important items regarding safety.
Observe them without fail.
• The manufacturer shall not assume any liability for the damage caused by not observing the description of this
manual.
WARNING
Turn off the main power supply switch or breaker before attempting installation.
•
Make sure all power switches are off. Failure to do so may cause electric shock.
Connect the connecting wire correctly.
•
If the connecting wire is incorrect, electric parts may be damaged.
Ensure that all terminals are securely f xed, so preventing any external forces having a negative effect on the
•
terminals.
Do not connect the DRED mains cable to the terminal block of the outdoor unit.
•
Improper installation may result in f re.
Connect the demand connecting wires so that they do not come into contact with the refrigerant cycle parts or
•
refrigerant pipes.
Wire breakage or water intrusion may cause electric shock or f re.
Do not screw the DRED signal receiver directly to the outdoor unit.
•
The screw may damage the internal parts and cause an electric shock, f re or refrigerant leak.
CAUTION
Wear heavy gloves during the installation work to avoid injury.
•

■ Connection procedure

This air conditioner complies with AS/NZS 4755.3.1.
DRM available: DRM1
The terminal block meets ELV requirements.
Parts layout of the electrical control box
Demand response interface
WARNING
Do not connect the DRED mains cable to the terminal block of the outdoor unit.
•
Improper installation may result in f re.
For the power supply of the DRED, prepare exclusive power supply separated from that of the outdoor unit.
•
Demand response mode
DRM1
DRM2
DRM3
DRM3 DRM2 DRM1 COM
MCC-1653
Locally procured
Description
Compressor off
Not available
Not available
DRM3 DRM2 DRM1 COM
Connect the wire (4-wire) with a round terminal
to the Demand section (COM, DRM1, DRM2,
DRM3) on the terminal block.
DRED
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