Press "Enter" to skip to content

What refrigerant can be used in place of R22?

RS-44b (R453a) is the newest R22 drop-in replacement refrigerant in the U.S. market. RS-44b has been sold worldwide for the past 5 years, branded as RS-70 outside the US. It is the closest replacement to R22 that operates with very similar discharge pressure, cooling capacity and flow rate as R22.

Can I write off new air conditioner?

If you install a new AC system in your primary residence that meets energy efficiency requirements, the maximum amount of credit that you can receive back is $300. When you choose to claim a tax credit, you do not have to itemize deductions. The IRS allows you to take the standard deduction.

What type of refrigerant does 407C replace?


Can I replace R407C with R410A?

A R407C system uses few, if any of the same components as a R410A system. A complete redesign is required to use R410A.

What is the suction pressure of 407C?

If this is so always evaporating above zero, 4 or 5 deg celcius, R407c will have a low pressure (suction ) of about 50 psi. and a high pressure ( discharge ) of about 280 psi, which is about 55 deg celcius, cooling cycle. Standing pressure ( system not running ) will depend on surrounding temperature of outdoor unit.

What is the suction pressure for r410a?

A normally operating R-410A system with the same condensing temperature of 120 degrees and a 45 degree evaporator saturation temperature will have a high side pressure of 418 psig and a low side pressure of 130 psig.

What is the suction pressure for r134a?

Suction pressure or Back pressure of R 134a is 0 to 5 lbs psig. For cooling coil temperature -14 to -16 degree Celsius. Headpressure is 150 to 185 lbs psig. and Stand by pressure is 85 to 95 lbs psig .

What happens if AC system is overcharged?

An overcharged AC will read higher pressures than normal and also higher temperatures. Your compressor will not be able to manage this amount of coolant in the lines which increases the pressure and that in turn makes the temperature go higher.