Jun 24, 2020 · We will first examine the low-pressure side of the system, otherwise known as the vapor or suction line. During air conditioning mode, the pressure on the vapor line of an R-410A system will be somewhere between 102 to 145 PSIG. If the system had R-22, the vapor pressure would be between 58 to 85 PSIG but these pressures will be dependent on ... Type:. HFC Chemical Name & Components: R-32 (50%), R-125 (50%) Difluoromethane, Pentafluoroethane SDS/MSDS: Hudson Honeywell Arkema DuPont AmeriPure Chemours Pressure Temperature Chart: R-410A Best Use: One of the main refrigerants found in residential and commercial air conditioners. High GWP refrigerant currently being …The big debate in the HVACR industry right now is which refrigerant(s) will be chosen to replace R-410A in many types of comfort cooling equipment. Countries around the globe are already phasing down HFCs, and various states in the U.S. are passing legislation that would also minimize the use of these high-GWP refrigerants. California …HVAC PT Chart. Our PT refrigerant chart supports over 100 refrigerants. Set atmospheric pressure to absolute or set to guage and then change the default ...Pressure-Temp Chart-40-35-30-25-20-15-10-5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 11.6 14.9 18.5 22.5 26.9 31.7 36.8 42.5 48.6 55.2 62.3 70.0 78.3 87.3 96.8 107 118 130 142 155 170 185 201 217 235 254 274 295 317 340 365 391 418 446 476 507 539 573 608 Physical Properties of ...Apr 2, 2017 ... ... pressure means on the liquid line. I go over the specific ranges of pressure for R-410a and R-22. Supervision is needed by a licensed HVAC ...The charts start at the low end (-49°F) and tell you the pressures all the way to the high end (150°F). Example: What is the pressure of 134A freon at 85°F? You just chart the chart (found below) and you will see that at 85°F, the pressure of R134A is 95.2 psig (pounds per square inch gauge). Measuring the pressure of R134A refrigerant on a ...Blood pressure charts show blood pressure levels and can be used by adults of any age, as these levels do not change with age, according to Blood Pressure UK. Blood pressure should...This is where a printable 410A PT chart comes in handy. We have included a downloadable 410A PT reference sheet that provides saturated pressure values across a wide range of temperatures. This allows me to accurately cross-reference my gauge pressure readings against the proper saturation points for R-410A refrigerant.Pressure/. Temperature Charts. 30045 FM 2978 ... Pressures are in psig, except for the negative numerals which ... R-22 R-410A. R-407A. R-407C. °F. °C. Liq. Vap.An oil pressure gauge can be a crucial device for monitoring the health of your engine. The gauge is a simple device that reads the pressure being produced by the engine's oil supp...8 9 Rated capacities Ori˜ce no. Range N: –40 to +10°C Rated capacity in kW 1) Rated capacity in tons (TR) R410A R410A 01 23.0 6.5 02 27.5 7.8 03 2) 34.0 9.8 Technical data and ordering: TCBE Thermostatic expansion valves – TUB/TUBE/TCBER410A Pressure Temperature Chart (In Fahrenheit) Printable PDF. Temp er atu r e (° F ): R410A P r essu r e (p si g ): -60 ° F 0. 9 psi g -55 ° F 1. 8 psi g -50 ° F 4. 3 psi g -45 ° F … Make your job easier with our handy refrigerant pressure temperature HVAC app with R-410A included. Thermodynamic Properties of DuPontŽ Suva ® 410A Refrigerant English (I/P) Units New tables of the thermodynamic properties of DuPont™ Suva® 410A refrigerant [ASHRAE designation: R-410A (50/50)], have been developed and are presented here. These tables are based on extensive experimental measure-ments. Equations have been developed, …Physical Properties Of R22. In parallel to using the R22 PT chart, professionals will usually need to know some of the following R22 physical properties: R22 liquid density at -69°C: 1.49 g/cm 3. R22 gas density at 15°C: 3.66 kg/m 3. Triple point temperature: -115.76K. Critical pressure: 49.36 bar. Heat capacity ratio at 86°F: 1.178253.Tons o f Refrigeration - 2 00 Feet Equivalent Pipe Length. Re frigerants 22, 134a, 404,A and 507values are based on 100° F liquid temperatureand the stated evaporator temperature. R e frigerant 717 (ammonia) values are b ased o n 86° F liquid temperature and 20° F evaporator temperature. Both s uction a n d liquid line values a re based on a ...The higher the GWP the more harm the refrigerant does to the climate. R-410A has a GWP of over two-thousand whereas R-32 has a GWP of only six-hundred and seventy-five. While R-32 isn’t perfect it is a lot better then R-410A. That is why we are beginning to see a rise of usage of R-32 in the European Union and here in the United …This script determines the gas pressure based on temperature of R410a refrigerant. R410A is an HFC refrigerant, invented by Honeywell, that has been developed to replace the HCFC refrigerant R22. Systems operating on R410A run at a pressure of about 1.6 times that of similar systems operating on R22. Energy efficiency is comparable to R22. Temperature and pressure chart for refrigerants R22, R410A, R12, R134A, R401A, R409A, R502, R404A, R507A, R408A and R402A. Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications! This is where a printable 410A PT chart comes in handy. We have included a downloadable 410A PT reference sheet that provides saturated pressure values across a wide range of temperatures. This allows me to accurately cross-reference my gauge pressure readings against the proper saturation points for R-410A refrigerant.If you’re like 1 out of 3 Americans living with high blood pressure, then you and your doctor would probably be happy to see your blood pressure get lower. But is there such a thin...Drug-induced hypertension is high blood pressure caused by a chemical substance or medicine. Drug-induced hypertension is high blood pressure caused by a chemical substance or medi...It is a clear, colorless, non-toxic and non-irritating liquid. R-410A is a 50:50 blend of R-32 and R-125. The boiling point at atmospheric pressure is -62.9°F. A few of the important principles that make the refrigeration cycle possible …It is a chart that shows the relationship between temperature and pressure for 410a refrigerant. It is used by HVAC technicians to determine operating pressures ...What is the ideal pressure for 410A? The normal range of operation of the low-pressure side of the AC system is about 60 PSI to 85 PSI for R-22 and 105 PSI to 143 PSI for R-410A according to conditions. What temp does R-410A boil at? The liquid refrigerant in the system is known as R410A and boils at 55.3° Fahrenheit. Forane 410A Pressure Temperature Chart Forane 410A, R-410A, Pressure Temperature Chart, PT Chart, HVAC, refrigeration, air conditioning, refrigerant gas According to the American Heart Association (AHA), more than 100 million people in the United States are living with high blood pressure (HBD). And that’s a big problem. This condi... Online R454B pressure temperature chart spanning from -40°F to 150°F temp. Printable PDF version of R454B PT chart you can take with you on the job. There are several brand names for R454B: Opteon XL41, Solstice 454B, and Puron Advance. This is a blend of R32 (68.9%) and R1234yf (31.1%). It has a very low boiling point of -59.5°F (-50.9°C). Genetron® AZ-20 - (R-410A) Widely accepted to replace R-22 in air conditioning and refrigeration applications. For new equipment — not for retrofits. Overview. Specifications. Resources. Save this page as PDF. Widely accepted to replace R-22 in air conditioning and refrigeration applications. For new equipment — not for retrofits. Refrigerant Temperature Pressure Chart. The refrigerant temperature pressure chart is a tool that is readily available yet rarely used to its full advantage. It is often referred to as the “PT” Chart, or “PT” card. The PT Chart typically lists the pressure on the left, and the corresponding refrigerant boiling point on the right. Cooling Pressure (PSI) @ Service Port (Tolerance +/‐5) Outdoor Temp (°F) Refrigerant Pressure vs. Temperature Charts for Pioneer Split Systems (R410a) 68 115 119 123 127 131 135 139 143 147 71 120 124 128 132 136 140 144 148 152 ‐ m p (°F) 74 125 129 133 137 141 145 149 153 157 This script determines the gas pressure based on temperature of R410a refrigerant. R410A is an HFC refrigerant, invented by Honeywell, that has been developed to replace the HCFC refrigerant R22. Systems operating on R410A run at a pressure of about 1.6 times that of similar systems operating on R22. Energy efficiency is comparable to R22. Refrigerant Pressure - Temperature Chart. Pressure values are displayed for R-22, R-410a, R-407c, R-134a and R-404a refrigerants. Items Displayed in Red shows pressure in inches of Mercury. Items Displayed in Black shows pressure in pounds per inch gauge. Data points are reproduced based on available information.Reduce the pressure to the tightness test pressure. To complete the tightness test you should either: Hold the test pressure for a period of at least 24 hours, checking that the pressure has not dropped during this time. Note that if the ambient temperature changes by 5OC the nitrogen pressure will change by 0.7 bar.R-410A Environmental Classification HFC Molecular Weight 72.6 Boiling Point (1atm,°F) -61.0 Critical Pressure (psia) 691.8 Critical Temperature (°F) 158.3 Critical Density (lb./ft^ 3) 34.5 Vapor Density (bp,lb./ft^ 3) 0.261 Heat of Vaporization (bp,BTU/lb.) 116.8 Global Warming Potential (CO2 = 1.0) 2088 ASHRAE Standard 34 Safety Rating A1R404A Pressure-Temperature Chart Liquid. Vapor: Liquid: Vapor Liquid: Vapor Liquid: Vapor-49; 0.9; 0.3 ... Saturation Pressure-Temperature Data for R404A (psig)* Temp ...On to what’s changed. Ok, so obviously the refrigerant has changed but the big and noticeable difference here is the pressure change. 410A is anywhere from fifty to sixty percent higher pressure than R-22. So, while the basic design and operating procedures of 410A remain the same as R-22 extra caution should be paid to the pressure of 410A.of the refrigerant corresponding to the suction pressure at the sensing bulb location; this is superheat. By controlling superheat, the TEV keeps most of the evaporator surface ... R-407C, R-408A, R-409A, R-410A, R-422D, and R-507 are based on vapor free 100°F liquid refrigerant enter-ing the expansion valve, a maximum opening superheat of 7 ...have 410a heat pump the compressor trips the internal replaced compressor still same starts with good pressures 330 high 125 low then slowly drops to 225 high 25 low? ... Looking at the above info and the pressure-temperature chart I checked the pressures of my system and at 95-100°F outdoor ambient temp low side was about 62, high about 230 ...Refrigerants - Pressure vs. Temperature Charts Temperature and pressure chart for refrigerants R22, R410A, R12, R134A, R401A, R409A, R502, R404A, R507A, R408A and R402A. Refrigerants - Saturation Pressures vs. Temperatures Temperature and pressure diagram for constant boiling refrigerants - imperial and SI units. Triple Points Substancessystem charge chart - refrigerant 410a pressure at suction service port (psig) connect pressure gauges to suction and liquid ports on unit. measure air temperature to outdoor coil. place an "x" on the appropriate chart where the suction and liquid pressures cross. if "x" is below ambient temperature line, add charge and repeat step 3.Many young adults (18-39 year-olds) view themselves as physically healthy and may wonder why their doctor is concerned about their blood pressure. However, being young does not pre...TEMPERATURE - PRESSURE CHART FOR R-22, R-410A, R-407C, R-134A & R-404A REFRIGERANTS FYI #289 9/17/2009. updated 10/10/2012. Data points are reproduced based on available information. Advantage assumes no responsibility or liabililty for data errors. ADVANTAGE Engineering, Inc. 525 East Stop 18 Road Greenwood, IN 46142 317-887-0729 fax: 317-881 ...Forane 410A Pressure Temperature Chart Forane 410A, R-410A, Pressure Temperature Chart, PT Chart, HVAC, refrigeration, air conditioning, refrigerant gasAZ-20 (R-410A) pressure is about 60% (1.6 times) greater than R-22. Only use servicing equipment and components designed for AZ-20 (R-410A). Recovery cylinder service pressure rating 400 psig, e.g. DOT 4BA400 and DOT. BW400. Manifold sets must be 800 psig high-side and 250 psig low-side with 550 psig low-side retard.Find out about high-blood pressure during pregnancy. Some women with high-blood pressure develop preeclampsia. Learn how to avoid complications. Blood pressure is the force of your...Forane 410A Pressure Temperature Chart Forane 410A, R-410A, Pressure Temperature Chart, PT Chart, HVAC, refrigeration, air conditioning, refrigerant gasWhat is the ideal pressure for 410A? The normal range of operation of the low-pressure side of the AC system is about 60 PSI to 85 PSI for R-22 and 105 PSI to …Normal blood pressure is less than 120/80 millimeters of mercury, or mmHg, while a normal average resting heart rate is between 60 to 100 beats per minute, according to the America...Refrigerant Pressure - Temperature Chart. Pressure values are displayed for R-22, R-410a, R-407c, R-134a and R-404a refrigerants. Items Displayed in Red shows pressure in inches of Mercury. Items Displayed in Black shows pressure in pounds per inch gauge. Data points are reproduced based on available information.It is a chart that shows the relationship between temperature and pressure for 410a refrigerant. It is used by HVAC technicians to determine operating pressures ...The following chart gives comparative suction and liquid pipe . sizes for R-454B versus R-410A in air conditioning conditions . of +45 ºF saturated suction temperature. This information . shows that R-454B is very close in pressure drop to R-410A systems (it is actually slightly lower in pressure drop for equal line sizes).It is a clear, colorless, non-toxic and non-irritating liquid. R-410A is a 50:50 blend of R-32 and R-125. The boiling point at atmospheric pressure is -62.9°F. A few of the important principles that make the refrigeration cycle possible …Genetron® AZ-20 - (R-410A) Widely accepted to replace R-22 in air conditioning and refrigeration applications. For new equipment — not for retrofits. Overview. Specifications. Resources. Save this page as PDF. Widely accepted to replace R-22 in air conditioning and refrigeration applications. For new equipment — not for retrofits.of the refrigerant corresponding to the suction pressure at the sensing bulb location; this is superheat. By controlling superheat, the TEV keeps most of the evaporator surface ... R-407C, R-408A, R-409A, R-410A, R-422D, and R-507 are based on vapor free 100°F liquid refrigerant enter-ing the expansion valve, a maximum opening superheat of 7 ...Carry Freon™ P/T Charts in the Palm of Your Hand. Chemours has taken the traditional paper pressure temperature (P/T) chart used for years and adapted it for today's technology. The Pressure Temperature Calculator mobile app provides technicians with handy and accurate Freon™ refrigerant data on the go in both English and Metric units. TEMPERATURE - PRESSURE CHART FOR R-22, R-410A, R-407C, R-134A & R-404A REFRIGERANTS FYI #289 9/17/2009. updated 10/10/2012. Data points are reproduced based on available information. Advantage assumes no responsibility or liabililty for data errors. ADVANTAGE Engineering, Inc. 525 East Stop 18 Road Greenwood, IN 46142 317-887-0729 fax: 317-881 ... Oct 23, 2019 ... Learn how to use a pressure-temperature wall chart, pocket chart, or SMART Pro/R app. We will illustrate how pressure and temperature ...r-410a pressure temperature chart psig f° psig f° psig f° psig f° psig f° psig f° 12 -37.7 114 37.8 216 74.3 318 100.2 420 120.7 522 137.6 14 -34.7 116 38.7 218 74.9 320 100.7 422 121 524 137.9 16 -32.0 118 39.5 220 75.5 322 101.1 424 121.4 526 138.3410A single refrigerant PT chart here https://www.es-refrigerants.com/docs/29132_585.pdfEsco Chart here https://www.escotesting.com/documents/ptchart2018.pdf...Constants for vapor pressure of saturated vapor (dew point), p g: A = –1.440004 E+00 E = –3.521484 E+00 B = –6.865265 E+00 F = –7.750000 E+00 C = –5.354309 E–01 X o = 2.086902 E–01 D = –3.749023 E+00 Because both pressure and temperature appear in the reduced form in the equation, the same constants can be used for either SI or ...Proper tire pressure for a Harley Davidson depends upon the type of tire used. Harley Davidson recommends using only certain tires for specific models of motorcycles. The cold pres...The high side pressure, in contrast, refers to the refrigerant pressure in the discharge line. This is basically the pressure after the compressor. Even though the ideal pressure range for an R-401A air conditioner falls in the range of 110-140, its low side pressure should not be less than 100 psi, nor should it be more than 160 psi. Why this ...According to the American Heart Association (AHA), more than 100 million people in the United States are living with high blood pressure (HBD). And that’s a big problem. This condi...R-455A L40X Refrigerant PT Chart. July 6, 2020 by Alec Johnson. One of the very first steps when it comes to diagnosing a home air conditioner, refrigerator, a vehicle’s air conditioner, or a commercial cooler is understanding the temperature and the current pressure that the system is operating at. Having these facts along with the ...i just installed a new split unit r-410a a/c system. it is running at 285/120 psig. the high side seems way low, should be about 420. the correct orifice is installed. this is a 1.5 ton condenser, 2 ton evaporator, and a 0.051 inch orifice. thanks for any suggestions. hvac.Pocket Aid - Pressure / Temperature Pocket Chart - Laminated & Scored for Easy Folding. Kit Includes: Laminated / PT Chart. R22 / R410A. These HVAC tools are used for assistance in sizing ductwork for HVAC systems. Replaces / Supersedes: PTCHART PT CHART Pressure Chart Temperature Chart Calculator Pocket Aid PocketAid.Typical Low Side Pressure Range for R410A in the field: 115-120 psi. Typical High Side Pressure Range for R410A in the field: 410-420 psi. By 2025, high Global Warming Potential (GWP) refrigerants with a GWP of over 750, will be banned together with the systems using that gas. R410A has a GWP > 2,000.It can be used for recharging refrigerant, or to diagnose an a/c system based on pressure readings from your gauges. Ambient Temperature (°F) Low Side. High Side. 110°. 50-55 psi. 335-345 psi. 105°. 50-55 psi.Indications are that the RBI will hold tight. Reserve Bank of India governor Raghuram Rajan is under pressure to cut benchmark interest rates during the central bank’s quarterly mo...Reduce the pressure to the tightness test pressure. To complete the tightness test you should either: Hold the test pressure for a period of at least 24 hours, checking that the pressure has not dropped during this time. Note that if the ambient temperature changes by 5OC the nitrogen pressure will change by 0.7 bar.Mar 16, 2021 ... ... 410a refrigeration cycle refrigeration cycle ... Refrigerant Pressure Temperature Chart (Tagalog) ... STANDING PRESSURE | CHARGING PRESSURE R600a, ...The typical 410a pressures on a 95 degree day are as follows; Liquid pressure: 296.4 psi. Vapor pressure: 295.5 psi. See all other pressures for R410 on different temperatures of the day from -49°F to 150°F below.As an HVAC technician or someone interested in air conditioning systems, understanding the key factors that impact 410A refrigerant pressures is crucial. The proper functioning of ...Suvaâ 407C and Suvaâ 410A Refrigerant Descriptions. Suva® 407C is a non-ozone-depleting blend of three hydrofluorocarbon (HFC) refrigerants. It exhibits performance characteristics similar to R-22. Suva® 410A is a non-ozone-depleting blend of two HFC refrigerants. It exhibits higher pressures and refrigera-tion capacity than R-22.Constants for vapor pressure of saturated vapor (dew point), p g: A = –1.440004 E+00 E = –3.521484 E+00 B = –6.865265 E+00 F = –7.750000 E+00 C = –5.354309 E–01 X o = 2.086902 E–01 D = –3.749023 E+00 Because both pressure and temperature appear in the reduced form in the equation, the same constants can be used for either SI or ...Oct 23, 2019 ... Learn how to use a pressure-temperature wall chart, pocket chart, or SMART Pro/R app. We will illustrate how pressure and temperature ... This script determines the gas pressure based on temperature of R410a refrigerant. R410A is an HFC refrigerant, invented by Honeywell, that has been developed to replace the HCFC refrigerant R22. Systems operating on R410A run at a pressure of about 1.6 times that of similar systems operating on R22. Energy efficiency is comparable to R22. Refrigerant Temperature Pressure Chart. The refrigerant temperature pressure chart is a tool that is readily available yet rarely used to its full advantage. It is often referred to as the “PT” Chart, or “PT” card. The PT Chart typically lists the pressure on the left, and the corresponding refrigerant boiling point on the right.4 Using Table 2, select the column which is closest to the measured vapor pressure. 5 Scroll down the column to find your calculated superheat. 6 Read the required vapor line temperature at the intersection. (°F) If the measured vapor line temperature does not agree with the required vapor line. 7 temperature, add refrigerant to lower ...Physical Properties Of R22. In parallel to using the R22 PT chart, professionals will usually need to know some of the following R22 physical properties: R22 liquid density at -69°C: 1.49 g/cm 3. R22 gas density at 15°C: 3.66 kg/m 3. Triple point temperature: -115.76K. Critical pressure: 49.36 bar. Heat capacity ratio at 86°F: 1.178253.
SERVICE MANUAL R−410A Ductless Split System: DLF4(A/H), DLC4(A/H) 421 08 9204 00 57. The windings of the indoor fan motor are open or the over heat protection has kicked in. Replace the fan motor or the defective part. The built−in heat protection of the motor kicks in frequently because the motor is abnormal.. Export metahuman to blender
The right HVAC piston size for a heat pump or AC coil is determined by the tonnage of the coil, from 1.5 to 5 tons. Whether the system is R22 or R410A also makes a difference. The piston orifice size for R22 refrigerant systems is larger than for R410A systems. These HVAC coil parts are used in both A-coil and Z-coil types.Refrigerant Temperature Pressure Chart. The refrigerant temperature pressure chart is a tool that is readily available yet rarely used to its full advantage. It is often referred to as the “PT” Chart, or “PT” card. The PT Chart typically lists the pressure on the left, and the corresponding refrigerant boiling point on the right.SERVICE MANUAL R−410A Ductless Split System: DLF4(A/H), DLC4(A/H) 421 08 9204 00 57. The windings of the indoor fan motor are open or the over heat protection has kicked in. Replace the fan motor or the defective part. The built−in heat protection of the motor kicks in frequently because the motor is abnormal.Pressure chart for all temperatures of the R-410A refrigerant. Diagnose problems for your Puron appliance with our complete Pressure Table.On to what’s changed. Ok, so obviously the refrigerant has changed but the big and noticeable difference here is the pressure change. 410A is anywhere from fifty to sixty percent higher pressure than R-22. So, while the basic design and operating procedures of 410A remain the same as R-22 extra caution should be paid to the pressure of 410A.assembled, piped and wired at the factory to provide a single-piece. unit for shipment and rigging. Each unit is pressurized with a holding. charge of refrigerant R-410A for storage and/or shipping. The compact design, clean styling, small footprint, and quiet operation. make these condensing units and heat pumps suitable for almost any.Mar 16, 2021 ... ... 410a refrigeration cycle refrigeration cycle ... Refrigerant Pressure Temperature Chart (Tagalog) ... STANDING PRESSURE | CHARGING PRESSURE R600a, ...HVAC analog gauges usually have several charts inside the pressure gauge, while digital units have a few options to flip through. The most important thing to remember is that you cannot use an older gauge designed for R-22 with a newer R-410A system. ACLAB Note: Newer refrigerants operate at much higher pressures, so be on …In general, R466A is considered R410A “design compatible” o Classification as A1 (non-flammable) and capacity and efficiency is similar (+/-2%) o Design changes – Account for higher mass flow rate and impact on HXer pressure drops – Account for flow rate in selection of TXV – Refrigerant charge will be larger because of higher liquid ...R410a pressure chart high and low side. 8 Global Warming Potential (CO2 = 1. R ... 410a refrigerant pressure chart downloads. In this HVAC Training Video, I ... psig °f psig °f psig °f psig °f psig °f 12; –37.7. 114 R410A PRESSURE-TEMPERATURE CHART. Saturation Pressure-Temperature Data for R410A (psig)*. ECLPC-1 Rev 1 – 02/22.50 100 150 200 250 300 350 400 450 500 550 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 9 10 h (kJ·kg−1) p (MPa) 0 −10 40 −30 −20 10 20 30 50 t = − ... Typical High Side Pressure Range for R410A in the field: 410-420 psi. By 2025, high Global Warming Potential (GWP) refrigerants with a GWP of over 750, will be banned together with the systems using that gas. R410A has a GWP > 2,000. 3. R-410A compatibility offered with P266SNR-2C transducer PRODUCT SWITCH ACTION BOTTOM OF RANGE TOP OF RANGE MAXIMUM WORKING PRESSURE TYPICAL APPLICATIONS P70 SERIES ADJUSTABLE ON/OFF PRESSURE CONTROLS P70AA-2C SPST Open Low 0 150 325 Suction pressure control — loss of charge P70AA-400C … psig °f psig °f psig °f psig °f psig °f 12; –37.7. 114 .