Wring Diagram; Control Board - Gree GRS-Cm18PdRe/NhA-M Owner's Manual

from the distribution cabinet to the unit less than 75m. If cables are laid out in a distance of 75m
to 150m, diameter of power cable must be increased to a further grade.
(2) The power supply must be of rated voltage of the unit and special electrical line for
air-conditioning.
(3) All electrical installation shall be carried out by professional technicians in accordance with the
local laws and regulations.
(4) Ensure safe grounding and the grounding wire shall be connected with the special grounding
equipment of the building and must be installed by professional technicians.
(5) The specifications of the breaker and power cable listed in the table above are determined
based on the maximum power (maximum amps) of the unit.
(6) The specifications of the power cable listed in the table above are applied to the
conduit-guarded multi-wire copper cable (like, YJV XLPE insulated power cable) used at 40℃
and resistible to 90℃ (see IEC 60364-5-52). If the working condition changes, they should be
modified according to the related national standard.
(7) The specifications of the breaker listed in the table above are applied to the breaker with the
working temperature at 40℃. If the working condition changes, they should be modified
according to the related national standard.

11 Wring Diagram

11.1 Control Board

GRS-Cm18PdRe/NhA-M
22
Air-to-water Heat Pump