Gree GMV-Y36WL/A-T, Руководство по обслуживанию

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GREE Photovoltaic Multi VRF for North America
3
connection pipe between indoor and outdoor units can be 120 (394ft)
m’s long, which has
extended the installation condition and reduced the limit of installation distance.
（
4
）
Wide operation range
Units can operate reliably in a wide temperature range (cooling: -5~48
℃
(23~118°F) ,
heating: -20~27
℃
(-4~81°F) )
（
5
）
Fine sound quality
Through a series of optimized measures, system has reduced the throttle noise and
oil return noise of indoor units, gas bypass noise, etc. so that units are more comfortable
regarding sound quality.
（
6
）
Intelligent PID capacity regulation
With the independently developed PID capacity regulation technology, units are able
to control the indoor ambient temperature more quickly and reduce the fluctuation of room
temperature.
（
7
）
Complete protection
Units are equipped with a series of protection to accurately identify errors and protect
the units, which has ensured reliable and safe operation.
2.2 PV Direct-driven Inverter Multi VRF System
2.2.1 Working principle of PV Direct-driven Inverter Multi VRF System
PV power generation system is a power generation unit for PV direct-driven inverter
multi VRF system and provides clean and renewable energies for PV direct-driven
inverter multi VRF system. The left picture is the working principle chart of PV
direct-driven inverter multi VRF system combined with one single multi VRF system and
PV power generation system. As you can see, the sunlight irritates to the surface of the
PV sub-assy, according to the photovoltaic effect, solar energy will be converted to DC
electric power, then DC electric power shall be input to the DC bus of PV direct-driven
inverter multi VRF system. When there’s residual electric power or the compressor of
multi VRF unit is not operating, DC will be converted to AC electric through current
converter, meanwhile, conduct quality treatment to the electric energy, then combine the
qualified AC to the power grid. In case several multi VRF systems are operating, an AC
power distribution cabinet is needed to converge the AC, then combine them to the
power grid, as is shown in the right picture. When PV power generation capacity is
insufficient for the compressor of multi VRF system or PV is not generating power, the