GMV DC Inverter VRF
50
Fig. 5.2.1
(2) When debugging starts, system will operate according to the ambient temperature.
When outdoor temperature is above 20
℃
, debugging shall be in cooling mode.
When outdoor temperature is below 20
℃
, debugging shall be in heating mode.
(3) Before debugging, confirm again whether the cut-off valve of each basic module is fully
turned on.
(4) During debugging, front panel of the outdoor unit must be fully closed; otherwise,
debugging accuracy will be affected (see below).
Fig. 5.2.2
(5) Before debugging, make sure the needed amount of refrigerant has been added to the
pipe or at least 70% of the needed refrigerant has been added.
(6) Description of each stage of debugging progress:
Description of each stage of debugging progress
System doesn’t have master unit.
Reset master unit.
More than 2 master units are set. Reset
master unit.
Master unit is successfully set. Start
next progress.
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