Air Conditioning Certification UPDATED!

R-134a vapor enters the condenser at 124 psig. 100F. It leaves as a liquid from the condenser sub-cooled 20F. and the pressure will be approximately - 124 psi A scroll compressor moves refrigerant by means of - involute spirals A TXV sensing bulb that is loose from the suction line will cause - High suction pressure and higher than normal discharge pressure If 10 pounds of refrigerant passing through a water cooled condenser rejects 20 BTUs of heat per pound, then 10 pounds of water passes through that condenser with an entering water temperature of 80F, the temperature of the leaving water will be - 100F If the evaporator pressure does not change when heat is added or removed from the TXV sensing bulb, the problem may be - a faulty bulb or power head The temperature rise method for determining air flow is - CFM=(1.08xTD) ÷ BTU The standard unit for measuring the quantity of heat in a substance is - British Thermal Uint After a system has been opened and the compressor changed you should - replace the line drier, leak check, evacuate and recharge