What does POA valve mean?
Pilot Operated Absolute
What does a POA Valve do? In some systems, this mechanism is a thermostat, but in most mid 60’s to mid 70’s GM vehicles and some 70’s Ford vehicles, it’s a POA (Pilot Operated Absolute) Valve. A thermostat prevents the Evaporator from freezing by cycling the Compressor on and off based on Evaporator temperature.
What are Poas?
A power of attorney (POA) is a legal document giving one person (the agent or attorney-in-fact) the power to act for another person, the principal. The agent can have broad legal authority or limited authority to make decisions about the principal’s property, finances, or medical care.
What is a VIR AC system?
From 1974 – 1976 General Motors used a VIR (valves in receiver) on their A/C systems. The VIR eliminator will eliminate the original VIR to allow the A/C to use R-134a refrigerant. The VIR eliminator will eliminate the original VIR to allow the A/C to use R-134a refrigerant.
Is a POA responsible for debt?
When it comes to debt, an agent acting under power of attorney is not liable for any debts the principal accrued before being given authority or/and any obligations outside their scope of authority.
How does a PoA valve work on an air conditioner?
On older cars with a POA Valve type system, the Compressor runs continuously whenever the air conditioning system is operating. The POA Valve prevents the Evaporator from freezing by by-passing excessive system pressure.
What happens when a PoA valve is failing?
If the POA Valve is failing, you’ll have little or no cold air coming out the vents when the air condition system is operating and the high side reading will be normal but the low side reading will be high. (Because the failing POA Valve is letting high pressure vapor into the low side of the system).
What did pilot operated Absolute ( Poa ) valves do?
About POA Valves. Pilot Operated Absolute (POA) Valves are the Suction Valves that were used on most mid 60’s to mid 70’s GM vehicle air conditioning systems and on some 70’s Ford systems. All air conditioning systems have something built into the system to prevent the. Evaporator from getting so cold that it freezes.
What does Poa stand for in a car?
In some systems, this mechanism is a thermostat, but in most mid 60’s to mid 70’s GM vehicles and some 70’s Ford vehicles, it’s a POA (Pilot Operated Absolute) Valve. On older cars with a POA Valve type system, the Compressor runs continuously whenever the air conditioning system is operating.