AC Pro GMV-ND07PLS/A-T(U) Installation Manual

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AC Pro GMV-ND07PLS/A-T(U) Installation Manual Manual pdf 38 page image

338.1 Low Static Pressure Duct Type Indoor Unit7 AFTER-SALES EMERGENCY MEASURES8 WIRING DIAGRAMWhen some unrecoverable fault occurs to one module which relates to several others in parallel, thefollowing emergency measures are recommended to guarantee the heating or cooling capacity of theindoor units and the service life of modules except the faulted one are not affected.Step 1: set all indoor units under “Off” mode and cut off the power supply to the indoor and outdoorunits.Step 2: shut off all cutoff valves of the faulted outdoor unit, including the cutoff valves of the liquid/gaspipe as well as the oil balancing valve.Step 3: cut off the air switch of the module.Step 4: remove the communication line between the faulted module and other modules which arekept connected through the communication line.Step 5: readjust the address and quantity settings on the main board of the modules except thefaulted one.Step 6: power and restart the unit.NOTICE!This drawing is just for reference; please always refer to the electric wiring stuck to the unit for actualwiring.Model: GMV-ND07PLS/A-T(U) ~ GMV-ND22PLS/A-T(U)Multi Variable Air Conditioners Indoor Unit1082 After-sales Emergency MeasuresWhen some unrecoverable fault occurs to one module which relates to several others in parallel, thefollowing emergency measures are recommended to guarantee the heating or cooling capacity of theindoor units and the service life of modules except the faulted one are not affected.Step 1: set all indoor units under “Off” mode and cut off the power supply to the indoor and outdoorunits.Step 2: shut off all cutoff valves of the faulted outdoor unit, including the cutoff valves of the liquid/gaspipe as well as the oil balancing valve.Step 3: cut off the air switch of the module.Step 4: remove the communication line between the faulted module and other modules which arekept connected through the communication line.Step 5: readjust the address and quantity settings on the main board of the modules except thefaulted one.Step 6: power and restart the unit.3 Wiring DiagramNOTICE!This drawing is just for reference; please always refer to the electric wiring stuck to the unit for actualwiring.3.1 Low Static Pressure Duct Type Indoor UnitModel：GMV-ND07PLS/A-T(U) ~ GMV-ND22PLS/A-T(U)