Gree GMV-1015WM/G-U, Руководство по обслуживанию

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Gree GMV6 DC Inverter VRF Units Service Manual
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(4) Debugging must be carried out by a professional or under the guidance of a professional. Do
not debug the air conditioning unit by yourself.
(5) All scattered objects, especially metal chips, wire ends and clamps, should be removed from the
body.
(6) Check if the terminals of the electrical components in the unit are loose and the phase sequence
is correct.
(7) Before debugging, all pipeline valves of the unit are required to be open.
(8) Power cannot be supplied until all installation work is completed.
(9) Before conducting the debugging, please ensure that the compressor has been preheated for
more than 2 hours, and check whether the preheating is normal by hand. Debugging can be
started up only when the preheating is normal, otherwise the compressor may be damaged.
(10) When starting up the debugging, the system automatically selects the operating mode according
to the current ambient temperature.
(11) When debugging, the front panel of the outdoor unit must be completely closed, otherwise it will
affect the accuracy of debugging (as shown in the figure as below).
(12) Button description:
Short press: press the button for 3s and then release it;
Hold the button for 5s: press the button for 5-10s and then release it;
Hold the button for 10s: press the button for 10s and then release it.
3.2.2 Basic Introduction for Engineering Debugging
3.2.2.1 Debugging Method
DC inverter multi VRF unit has three debugging methods at present:
(1) Conduct it by pressing the buttons on the main board of outdoor unit.