Fabrication Of Automatic Pump Down On Split Unit Wall Mounted Type Airconditioning System

Mat Nor, Muhamad Asrul Affendi (2016) Fabrication Of Automatic Pump Down On Split Unit Wall Mounted Type Airconditioning System. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 Pages) Fabrication Of Automatic Pump Down On Split Unit Wall Mounted Type Airconditioning System.pdf - Submitted Version Download (459kB)

Abstract

Pump down is a process of pumping and storing refrigerant that circulated in an air conditioning system into the outdoor unit. In normal practice, pump down was done manually before any service or repair being made on the split unit air conditioning system. This project focused on developing an automatic pump down system attached to wall mounted split unit air conditioning. A system with 1hp capacity was selected to be mounted with two set of pressure switch and solenoid wave will shut of line while line the compressor. Continue pump the remaining refrigerant into outdoor unit. The whole system will completely shut off after all refrigerant were safety keep inside the outdoor unit. Few leakage cases was selected to examine the capability of the new automatic pump down system in term of keeping as much refrigerant from emitted to atmosphere. The system was highly recommended and suggested to implemented in all split unit system do prevent leakage refrigerant from expose to atmosphere.

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