Product Introduction - Gree RIO GWH12KF-A3DNB1A Installation, Service & Troubleshooting

Product Introduction

System Overview
The RIO Ductless split heat pumps are single zone
units 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 RIO 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
capacity while maintaining maximum efficiency.
The RIO systems are equipped with G10 inverter
technology providing precise control over the
compressor frequency 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 motors, fan motors and circuit board are also
components of the indoor unit. The indoor units have Circuit Board with
a on/off switch to bypass the remote control if lost or
G10 Technology
batteries 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 maximum allowable line lift and distances vary
by model, please refer to the charts in the manual for
proper lineset applications.
The systems use a PVE oil and should require no
additional oil. All RIO units utilize an Oil Return
Mode which will return oil to the compressor should
the need arise.
Compressor
8