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What is it called when you charge a liquid with gas?
Aerate or aeration.
Can a liquid retain electrical charge?
Yes. In fact a moving liquid can generate an electric charge. When oil truck fill-up they are required to be grounded to avoid an igniting spark.
The way freely moving particles move?
Free electrons with a charge of -1
Can a 5 ton coil and furnace work with a 3 ton compresser?
yes, but you will overwork your compresser and you will have to change your txv
Why does liquid pentane not conduct electricity?
Liquid pentane does not conduct electricity because it has a net charge. This is as a result of the liquid not being an ion.
What are three factors that determine the capacity of a TXV?
The capacity of a TXV differs due to orifice size, pressure difference between high and low side, and the temperature and condition of the refrigerant in the liquid line.
What is the different between exv and txv?
Difference between txv and exv.
What is the meaning of starved evaporator coil?
It could be restriction or low charge. Meaning you could have a bad txv valve or not enough refrigerant in the system.
When a TXV powerhead looses its charge what happens?
The Txv usaully will not let any flow though valve causing low side to pump down or go off on low pressure. Because it is the charge that opens the diaphragm/valve against the spring pressuse (keeps the valve closed) of the TXV, an absense of the charge will allow the spring pressure to keep the valve closed; consequently starving the evaporator coil of a saturated vapor, until the system pulls down into a vacuum. If the system is equiped with a low side pressure switch, the system should go off on low pressure.
Is it ok to undersize a txv?
No, it is not.
Function of expansion valve?
Metering device The metering device controls the flow of liquid refrigerant through the system. The liquid enters at a high-pressure, high-temperature, sub-cooled state and leaves as a low-pressure, low temperature, expanded liquid state. Accurator Piston and Thermostatic Expansion Valves are the most widely used metering devices. Accurator Pistons are widely used because of their low cost and flexibility. The piston can easily be changed to match the capacity of the condensing unit. The Thermostatic Expansion Valve (TXV) is the most efficient type of metering device. The TXV automatically adjusts the flow of the liquid refrigerant based on the superheat of the refrigerant leaving the evaporator coil. As the load on the evaporator increases, the TXV increases the flow of refrigerant. This maintains the proper superheat. The TXV is efficient throughout a variety of system operating conditions, while the accurator is efficient only under designed conditions.
What is an evaporation coil with TXV?
The evaporator changes refrigerant from a low pressure liquid to a low pressure vapor, and acts as a heat exchanger, removing heat and humidity from the passenger compartment.
What is a dual port TXV?
Dual port TXV used when system need a large TXV for short periods of time. Dual-port valves have two independent capacities larger port for periods of high load smaller port for periods of normal load TXV capacity is doubled when larger port is open all the way.
Which is not a pressure or force on a txv diaphragm?
spring
What is meant by a dual-port txv?
step motor
What is meant by a dual port TXV?
step motor
Why low temp rise in cooling mode of heat pump?
COULD BE MANY THINGS- NEED MORE SPECIFICS. MOST LIKELY TXV OR CHARGE ISSUE. IF TEMP RISE GOOD IN H/P MODE W/O STRIP OR SUPP. HEAT ADDED MOST LIKELY TXV. IS OA TEMP AN ISSUE THIS TIME OF YEAR? (LOW HEAD PRESSURE) lc
