Samsung MH026FNCA Service Manual

Also see for MH026FECA: Service manual

10-7Samsung ElectronicsClass At installation At serviceConnectionPipe LengthStandard< TOTAL ≤ 65.6ft(MH050FXCA2A)Max.< TOTAL ≤ 131.2ft(MH080FXCA4A)Air-PurgeMethodRefer to thedetailed Connecting upand purging the circuit.(10-2 page)RefrigerantAdjustmentUnnecessaryAdd "0.11oz" of refrigerant(R410A) for every 1ft.Air-PurgeMethodPurge air using avacuum pumpor an additionalrefrigerant cylinder.RefrigerantQuantityrefer tospecification sheet10-4 Refrigerant AdjustmentIt would be the best choice to use the standard tube length to keep the basic quality of Room Air conditioner, for example coolingand heating capacity, sound level, vibration level, and reliability.But, according to a certain different installation condition, the connection tube length could be changed in the recommendationlength that is shown above.In this case, installer should keep the installation condition to keep the quality of Room Air conditioner. Refrigerant should be charged additionally as written above according to the change of the length of the connection tube.It needs to affect the decrease in cooling and heating capacity or of the reliability of compressor that may be caused by a lack of refriger-ant. Installation position difference between the indoor unit and the outdoor unit should not exceed over than 49.2ft. When the connection pipe is been extended longer than 16.4ft, it might need to change the diameter of the electrical wire to a larger sizein order to keep a voltage drop for starting room air conditioner is not less than 85% of the rated voltage. And then, a voltage meter willbe useful to check the rate of the voltage drop. MH050FXCA2A/MH080FXCA4AAdd "0.11oz" of refrigerant(R410A) for every 1ft.