Product Introduction (System Overview) - Gree TERRA09HP230V1A Installation, Service & Troubleshooting

Product Introduction
System Overview
The Terra Ductless split heat pumps are a single zone
unit available in size from 9000 btuh to 24, 000 btuh
providing heating and cooling. All comfort settings
Indoor Display
are controlled by a remote control. The Terra unit has
many features to enhance comfort and efficiency. The
operation of these features will be explained later in
this service manual.
Superior inverter technology is used to control capac-
ity while maintaining maximum efficiency. The Terra
systems are equipped with G10 inverter technology
providing precise control over the compressor frequen-
cy based on operating pressures and temperatures.
Should an abnormal condition occur, the software will
adjust the compressor frequency or shut down the
system indicating the appropriate fault.
The indoor unit contains a digital display, which will
indicate the current fault. The evaporator, swing mo-
tors, fan motors and circuit board are also components
of the indoor unit. The indoor units have a bypass
Circuit Board with
switch to bypass the remote control if lost or batteries
G10 Technology
fail. This will be explained later in this service manual.
The systems require R410A and are pre-charged for 25'
of lineset. Please refer to your installation manual for
additional charge for linesets longer than 25' .
The systems use a PVE oil and should require no ad-
ditional oil. All Terra units utilize an Oil Return Mode
which will return oil to the compressor should the
need arise.
Compressor
7