Gree GRS-Cm28/NaA-M - Installation for Main Unit of Water Heater

Chapter Ⅱ Installation（3. Installation for Main Unit of Water Heater）
10
Communication wire and control wire should strictly abide by the requirement that should use
the originally provided twisted-pair or STP of unit. The standard length of communication wire
between unit and wired controller is 8 meters, the maximum connecting length should not be more
than 20 meters.
The power cord must use copper conductor that should comply with related local conductor
standard, and satisfy current-carrying capacity requirement of unit. For specific selection of wire
diameter please refer to the contents of Chapter Six.
3. Installation for Main Unit of Water Heater
3.1 External Dimensions and Size of Installation Holes
(1) External dimensions and size of installation holes for GRS-Cm28/NaA-M
、
GRS-Cm28/NaA1-M
、
GRS-Cm36/NaA-M
、
GRS-Cm36/NaA1-M:
Unit: mm
(2) External dimensions and size of installation holes for GRS-Cm53/NaA-M
、
GRS-Cm53/NaA1-M:
Unit: mm