GMV5 D.C INVERTER MULTI VRF SERVICE MANUAL
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Do communication cable materials comply with unit design requirements?
Are all communication cables of IDUs and ODUs serially connected?
Is the last-communicating IDU installed with a communication-matched resistance?
What is the load of the selected IDU model?
Is the foundation of ODU firm? Do shock absorption and water drainage comply with requirements?
Are basic modules installed on the same horizontal line?
Does the drainage pipe of IDU retain a 1/100 ratio of slope?
Is the drainage of IDU smooth?
Does a U-shaped trap exist in the drainage pipe of IDU?
Are the air outlet and air return vent of IDU connected with soft connectors? Is a plenum chamber
installed for air return?
Is the water pipe of IDU installed with an air exhaust vent?
Is "MASTER" stuck to the wired controller or panel of the master IDU?
Does appending refrigerants to the system comply with requirements?
Does the ODU run with static pressure? Has a static pressure value been set?
Has the ODU been preheated for more than eight hours before commissioning?
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