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5. Installation Walkthrough
5.7. Wiring
5.7.1. Explanation of Terminal Block 1
For user's side
A
E
A
:
This should be connected directly to the city power supply.
Unit power supply
For all units, ensure that a cable of sufficient gauge is used. (found on nameplate)
E
:
Power supply for anti-freeze electric heater in outdoor unit
This power supply is from indoor unit to anti-freeze electric heater in outdoor unit.
In case power supply for outdoor unit is cut off, the heater can still work to prevent plate heat exchanger
from freezing up.