AC High Pressure Switch Fits Freightliner * High Quality AC High Pressure Switch * 7-16-20 UNF Thread * Opens At 265 PSI * Closes At 180 PSI * Switch Is Normally Closed * Sold Individually * Warranty On A-C Switches Against Defects In Workmanship and Material From Date Of Purchase ***High Quality Aftermarket Replacement Part (Not OEM)*** * Replaces OEM # A22-30930-001 I believe you were miss informed but you don't half to drain your a/c fluid. If static pressure is below about 30 psi the A/C pressure switch Pressure: Too High. A pressure switch is a form of switch that closes an electrical contact when a certain set fluid pressure has been reached on its input. A/C pressure switch. Made of quality materials, it is engineered for reliable performance and durability. The pressure switch can be mounted to A/C pressure line, compressor or accumulator/drier. Accumulator Pressure switch, Female Thrd. 2 to body ground with a jumper wire. Knowing the pressure was ok, I replaced the connector onto the pressure switch. I checked pressure, traded MG CLT relay with the horn with no go. Do the compressor and fans operate? YES-Go to step 14. I've been looking and can't seem to find just the switch. SOURCE: no cool a/c ,high pressure unplug the pigtail from the clutch cycle switch. N/O 1/4” E35H-19E561AA: 2601191: 2001 1998: All: Pressure switch (4 term It is one of the common AC pressure switch symptoms you can notice in the first place. A/C. If there is no fluid in the system, then it’s going to grind to a halt again. According to expert maintenance tips, it is essential to follow the previous readings in mind. 70IWC (Green Dot), Air Pressure. They checked the system for Shop for the best A/C Pressure Switch for your 2006 Chevrolet Silverado 1500, and you can place your order online and pick up for free at your local O'Reilly Au The AC pressure switch is a device mounted on the high and low side of the AC. Off Pressure (psi): 44 psi. Air Conditioner, Low Pressure Switch To Fit John Deere® - NEW (Aftermarket) $24. 14. then after storm passed unit would not cool. SKU # 22262. The other is a high pressure switch, it shuts off the compressor if there is to much pressure. 95: Obsolete! 5 Term with Diode E4UH-19A706-AA: $0. Jump AC Relay. Once you noticed any of the bad AC pressure switch symptoms, you need to get the vehicle diagnosed by a professional mechanic. You are also correct that there is usually a schrader valve below the switch so you can r&r without losing freon. Switch part between terminals 1 and 2 switches off the A/C clutch -N25- when the system pressure is too high or when there is not enough refrigerant in the system . Some vehicles use a temperature-controlled cycling clutch switch to maintain evaporator temperatures. Step 2: Remove the switch electrical connector. It is best to monitor the system with CAT ET and it will let you Shop for the best A/C Pressure Switch for your 2006 Chevrolet Silverado 1500, and you can place your order online and pick up for free at your local O'Reilly Au This switch is for a M10 male service port. A “low pressure switch” disengages the compressor clutch if there is excessive refrigerant loss (below 30 PSI). Then set it aside. In case of an auto air A/C Pressure Switch for John Deere® Tractor, AL168231. I have found the entire low pressure line but I got to believe I can buy A pressure switch is a device that operates an electrical contact when a preset fluid pressure is reached. Condensers. I just recharged the system up to spec with the pressure switch bypassed (ac compressor running). Check the numbers printed on your AC and connect wires according to it. A/C Pressure Sensors. However, in this step, you need to pay close MRY. Dorman Products - 85148 : 2-Wire A/C Low Pressure Switch. Joined Aug 24, 2017. Why do I need a low pressure switch? That’s because the refrigerant carries the lubrication oil throughout the system. *Please Verify OEM Number Before Purchase. FREE Shipping on orders over $25 shipped by Amazon. HVAC Pressure Switch by Four Seasons®. Shop for the best A/C Pressure Switch for your 2006 Chevrolet Silverado 1500, and you can place your order online and pick up for free at your local O'Reilly Au Air Conditioner Pressure Switch 3546241C1 6322132553. Select a store to see pricing & availability. We are also constantly updating our ACM parts selection to give you the best possible selection of parts. They’re different from simple two wire pressure switches that have only two states, either open or closed. Pump, Hydraulic, Shaft, Drive Pin Bushing To Fit John Deere® - NEW (Aftermarket) The A/C pressure switch is mounted on both the high and low sides of your A/C. Products are engineered and tested to provide years of trouble free operation. N/O 12mm. You have one more 2 wire switch that controls the engine fan when the pressure builds to high. When you do this, the connection will send 0-5 volts of pressure through the PCM fuse. My dads got a 2007 renault megane 2 and he has just had his air con gas refilled. Shop for the best A/C Pressure Switch for your 2006 Chevrolet Silverado 1500, and you can place your order online and pick up for free at your local O'Reilly Au The pressure switch shuts off the A/C compressor if the refrigerant pressure is too low or too high to protect your A/C system components from damage. I made a quick and dirty check last night - the compressor runs fine and the system cools when I jump the relay- I have power at the switch connector, at the relay and at the compressor. Re: A/C cruisair high pressure shut off switch There is a lot more to it than having a clean strainer. Pressure sensors have three wires leading to the control module. Save. Disconnect the negative battery cable with a wrench of ratchet. Part # MT0447. Pretty sure the compressor is the variable displacement type and the pressure is regulated by the compressor and it looks like it's working. The A/C pressure switch is mounted on both the high and low sides of your A/C. You have to bypass 3 wire ac pressure switch from B1 to B4 to power up the compressor clutch. Backed by over 50 years of mobile A/C experience, fix it once and fix it right with Four Seasons. A/C Transducer Switch. Back to A/C Components. Check if this part fits your vehicle. Kit includes the pressure switch, switch plug with butt splices, complete O-Ring Kit, lubricating oil tube, compressor label. I lightly tapped the pressure switch with a ball peen hammer and that did the trick. 58. Our Mopar parts and accessories are expedited directly from authorized Mopar dealers strategically located all across the U. It is Located on the Receiver Drier Assembly. It is only for High and Low Pressure protection. Share. Shop for the best A/C Pressure Switch for your 2006 Chevrolet Silverado 1500, and you can place your order online and pick up for free at your local O'Reilly Au Air Conditioner, Low Pressure Switch To Fit John Deere® - NEW (Aftermarket) $24. Set Point: Rising pressure at which switch actuates. This HVAC switch connector is designed to match the appearance and function of the original hardware on specified applications. View related parts. -Replace the A/C pressure switch. If the pressure is too high, it could burst the compressor causing a leak of refrigerant fluid. Pump, Hydraulic, Shaft, Drive Pin Bushing To Fit John Deere® - NEW (Aftermarket) Static pressure significantly higher than the chart indicates contaminated refrigerant, too much refrigerant, or air in the system. Shop for the best A/C Pressure Switch for your 2001 Chevrolet Silverado 2500 HD, and you can place your order online and pick up for free at your local O'Reilly The pressure control witch for a car or truck A/C system is a safety device that monitors referigerant high and low side pressures and controls the turning on-off of the air conditioning compressor motor. Get it as soon as Wed, Sep 22. 2. Pressure Switches, OEM Parts, HVACR Parts, including PRESSURE SWITCH KIT, PRESSURE SWITCH, Air Pressure Switch -0. 10242579 - Switch Asm - A/C Compressor Low Pressure Cut Off - Workhorse Parts Part# 10242579 Description: Brand New Workhorse Air Conditioning Compressor Low Pressure Cut Off Switch. Free shipping. When It Is Not Getting Cold Enough. Pressure Cycling Sw. 600 Posts. . Many times I ve had debris in the lines, especially in manifolds, blocking water flow to one unit only. If your issue is in that valve then yes you will lose pressure. Anyone in the know, please light my lantern! CRV 2010. Pressure switch kit, also known as a safety switch and threads into port on receiver driers or in available in a T-fitting. Other Name: Valve A/C pressure Transducer Replaced by: 68308727AA. Vehicle Specific. In case of an auto air Dorman Products - 85148 : 2-Wire A/C Low Pressure Switch. Any good parts store should be able to supply a replacement. The connection sends 0-5 volts of pressure to the PCM fuse. Either check pressure or bypass it again and see if the air coming from the vents actually gets cold. (Please see our ACDelco cycling switch if your vehicle is charged with R-12 refrigerant) This switch is located at the AC accumulator/drier. I rummaged through the Service Manual to get ideal pressures but I am either missing something or some of the data is wrong. Touch device users, explore by touch or with swipe gestures. AC Pressure Switch Replacement Cost. Some vehicles mount theirs on the accumulator, others on the lines. Fits Impreza. Shop for the best A/C Pressure Switch for your 2006 Chevrolet Silverado 1500, and you can place your order online and pick up for free at your local O'Reilly Au A/C Pressure Switch w/4 wires Isuzu N-Series GMC W-Series Trucks 1994-2010 - NEW. $. SKU. Shop for the best A/C Pressure Switch for your 2006 Chevrolet Silverado 1500, and you can place your order online and pick up for free at your local O'Reilly Au Part# W8000073 - A/C High Pressure Side Switch Description: This is a Brand New Workhorse Air . Shop for the best A/C Pressure Switch for your 2006 Chevrolet Silverado 1500, and you can place your order online and pick up for free at your local O'Reilly Au Pressure: Too High. The only thing the pressure switch does is stop the compressor from engaging when the pressure is very low [leak or very cold] or very high [ blockage or serious compressor failure]. $29. Step 3: Remove the switch. Part Number: 73732FA110. AMAL168231. HVAC Pressure Switch. You have what is called a shrader valve. Our safety pressure switch is highly recommended on all A/C Systems. If this is the case with your A/C system, replace your It is one of the common AC pressure switch symptoms you can notice in the first place. N/O 1/4” E35H-19E561AA: 2601191: 2001 1998: All: Pressure switch (4 term Clutch Switch – w/Bergstrom A/C, 15 amp, 3 terminal 12v w/OE# 221504KB: 2601182: 2011 1998: All: High Pressure – Normally Closed M10, 2 Pin; 335/250 psi w/OE Pressure Switches for Servicing Heating Ventilation and Air-Conditioning (HVAC) Equipment Toggle menu PARTS HOTLINE(TOLL FREE) US : 866-215-3831 CANADA : 913-825-6891 Shop for the best A/C Pressure Switch for your 2006 Chevrolet Silverado 1500, and you can place your order online and pick up for free at your local O'Reilly Au A/C Pressure Switch by ACM eEuroparts. To ensure reliability, purchase Mopar part # 4897617AA Switch-A/C High Pressure Cut Off. This is done to power the compressor clutch. The average AC pressure switch replacement cost is between $50 and $300. Your A/C system includes a network of sensors that, if malfunctioning, can cause your air conditioning to stop working correctly. It monitors the pressure of the refrigerant on both sides of the system. There is a separate switch for the high side and the low side. When autocomplete results are available use up and down arrows to review and enter to select. Four Seasons 35969 Air Conditioning Switch. Connect the wires according to the numbers printed on it. that should be on your low pressure line (the fatter line of the 2 a/c lines) next to your condenser. there should be two wires. ·. The dual pressure switch is physically a bigger sensor/switch in the a/c hard line by the headlight; the pressure sensor switch is smaller and goes to a white "double barrel shotgun" shaped connector. an a/c guy disconnected the high pressure switch on our outdoors 2002 Ruud unit because it kept tripping and he said the switch was not needed. Normally Open. Protects the system from excessively high or low system pressures. To buy the AC pressure switch, you will likely spend between $20 and $100, while labor can cost $30 to $200, depending on how difficult it is to reach the sensors. For Honda I just can't find the info. The switch is still available online from some Dodge vendors but is about $80 ($50 to $60 if you shop around). We are also constantly updating our Behr Premium parts selection to give you the best possible selection of parts. This item is for use in systems with R-134a refrigerant ONLY. 23. They checked the system for 2005 Outback R LL Bean 3. Pressure Switches. Only 1 left in stock - order soon. I have found the entire low pressure line but I got to believe I can buy Female or Male hi-low Pressure Switch, Specify the one you need: $22. Part# W8000073 - A/C High Pressure Side Switch Description: This is a Brand New Workhorse Air . Allows compressor to resume when pressure rises above set point. Step 1: Disconnect the negative battery cable. Free shipping Free shipping Free shipping. Related products. S. CL/67600 65794. If you noticed any issue with the AC pressure switches, you need to get it fixed immediately to avoid high repair costs for the entire AC system. I think I could have a bad high pressure/pressure cycling switch on my 05 Outback. Air Conditioning Refrigerant Pressure Switch. A/C Pressure Switch I need to replace the leaking pressure switch that is mounted on the high pressure a/c hose at the compressor. 2013-2018 Dodge Journey TRANSDUCE-A/C Pressure TRANSDUCER. 89 sold 89 sold 89 sold. The first symptom which can answer the question “how to tell if AC pressure switch is bad” is the fluctuation of compressor. Shop for the best A/C Pressure Switch for your 2006 Chevrolet Silverado 1500, and you can place your order online and pick up for free at your local O'Reilly Au Accumulator Pressure switch, Female Thrd. It will have to be used in conjunction with a GM Pressure switch to make your A/C function properly with your LS Swap. I turned the A/C on and it did not kick on the compressor. Part 2 of 3: Remove the A/C pressure switch. check if this fits your vehicle. The probe is inserted into a tube that is soldered or brazed to one of the AC lines (high or low pressure, I don't know). The DENSO Difference. 2005 Outback R LL Bean 3. Home The A/C pressure switch is mounted on both the high and low sides of your A/C. LOW PRESSURE SIDE: Suction from the compressor pulls the high pressure/temperature liquid R134a through small variable orifice of the TX valve and into the low-pressure side of the A/C system. Shop for the best A/C Pressure Switch for your 2006 Chevrolet Silverado 1500, and you can place your order online and pick up for free at your local O'Reilly Au This switch is for a M10 male service port. Low Pressure Cutout Switch: Prevents system damage due to low pressure or low refrigerant charge by disabling A/C compressor when pressure drops below reset point. $15. Also bad news. They monitor the system from any pressure issues that may cause damage to the compressor. The unit attaches to the expansion valve next to the PS firewall and rear of the PS fender. a/c pressure switch simply senses level of pressure applied to its end, called bulb, and tells the system if it's at specific level, safe enough to run compressor: A thermostatic expansion valve is a metering device that monitors the amount of refrigerant that enters an A/C's evaporator. From a global leader in HVAC. $16. Low Pressure Opens at 28 PSI. And jumpering that connector will run the front fan. If the switch is bad your vehical air conditioning output may be weak or it may not work at all. 00: 4102715 Blower Resistor 4 Terminal D8BH Lower ambient temperatures (below approximately 10°C or 50°F) during winter cold weather seasons will also open the clutch cycling pressure switch contacts due to the pressure/temperature relationship of the refrigerant in the system. Page top photo: the wires and connector 7 HVAC Pressure Switches found. Add to Wish List. F3AH-19E561AA F3AZ-19E561A: 2601192: 1999 1998: All: Accum. You need to bypass 3 wire AC pressure switch through the B1 to B4. So really, you can look at the AC Pressure Switch as working in the same way as a fuse in an electrical circuit. When the pressure of the system goes an a/c guy disconnected the high pressure switch on our outdoors 2002 Ruud unit because it kept tripping and he said the switch was not needed. Signs of a failing A/C pressure switch include your A/C being unable HiSport A/C Air Conditioner Pressure Sensor Switch - Compatible with 2000-2012 Volkswagen 2001-2014 Audi, Replaces 1K0959126A 1J0959126. Posted June 30, 2008. The A/C pressure switch is mounted on both the high and low sides of your A/C. - Visually check that O-ring 10,8 mm x 1,8 mm is positioned correctly in the groove. 3 wire 0-5V AC pressure switch 07-03-2018, 04:46 PM. The A/C Pressure Switch monitors system pressures, aiding in proper and efficient control of the compressor, fans and system levels. The electrical switch contacts control the electrical circuit to the compressor magnetic clutch coil. A/C Compressors. If the switch is faulty, the A/C compressor will shut off at random intervals, or not turn on at all, without cooling the interior cabin. A safety switch that monitors the pressure of the refrigerant. Discussion Starter · #1 · Sep 26, 2017. Maximum Pressure: 500psi. Another AC pressure switch symptom is not getting cold enough. The switch makes an electrical contact on either pressure rise or pressure fall from a certain preset pressure level. In PSI (pounds per Pressure Switches for Servicing Heating Ventilation and Air-Conditioning (HVAC) Equipment Toggle menu PARTS HOTLINE(TOLL FREE) US : 866-215-3831 CANADA : 913-825-6891 A/C Pressure Switch by ACM eEuroparts. Mounted on low pressure side of compressor. Warranty : 24-months or unlimited mile AC Delco limited warranty Product Fit : Direct Fit Quantity Sold : Sold individually Series : GM Original Equipment Series Notes : A/C compressor refrigerant pressure switch Prop 65 Warning : The a/c high pressure switch and or wiring is most likely the cause of the issue. Pressure looks good. The switch opens or closes the circuit to the compressor clutch, based on evaporator I believe you were miss informed but you don't half to drain your a/c fluid. This part is a common failed part on all makes. This switch is crucial for proper A/C performance. Search for a store page input 2. Shop for the best A/C Pressure Switch for your 2006 Chevrolet Silverado 1500, and you can place your order online and pick up for free at your local O'Reilly Au A/C Pressure Switch for Various Lexus & Toyota Vehicles - NEW. In looking for a switch that looks similar, I've found that it's a Danhard switch, ( Danhard Inc. On Pressure (psi): 51 psi. Turn the idle speed back to where it was, turn the A/C off, disconnect the charging gauges, and re-install all the caps on the service ports. Santech A/C Switch MT0447. Step 2: Jump AC Relay. Pressure Switches ) but they make two different ones with different functions. Replaces Existing Switch With Corroded Terminals Or Broken Connector. Yes. 23 $47. 00. A “Binary Switch” incorporates both of these protections into one switch. com® carries an extensive catalog of aftermarket, OEM, original, and genuine parts from over 200 manufacturers. The pressure switch screws onto the sharder valve . yesterday we had a bad storm go through and the electricity went out several times. if you clutch kicks on, replace the sensor. Pressure cycling switch: The A/C pressure cycling switch is located in the low-side. When this circuit goes OPEN it signals the ecm to turn on the engine fan. A/C PRESSURE SWITCH 2P CONNECTOR. FOUR SEASONS 35969 A/C CONDENSER FAN-PRESSURE SWITCH - NOS - FREE SHIPPING. This switch is near the radiator. Loose The AC pressure switch(s) are very important for the AC system functioning. Check for continuity between climate control unit Pressure looks good. $64. Fits Various International Models (2002-2018) Direct Aftermarket Replacement For OEM #s: 3546241C1, 6322132553. Brand new AC pressure cycling switch and O-ring gasket for all 1986-1987 Buick Grand National, Turbo Regal, and GNX. A “Trinary Switch” incorporates both high and low pressure cutoffs, plus adds an “electric fan engagement signal” (at 254 PSI) feature to help HVAC Pressure Switch by Four Seasons®. The R134a is now under low pressure/temperature vapor where heat from the cabin being blown over the evaporator coil surface is absorbed into the colder Step 2: Jump AC Relay. connect a jumper wire to the 2 wires. Compressor Cut-Off Switch. It is sometimes referred to as Mopar HVAC Pressure Switch . Connect A/C pressure switch 2P connector terminal No. $69. A/C Pressure Switch (Male threads) RigMaster / Freightliner / Universal - NEW. . New New New. 99. An improperly functioning A/C Pressure Switch will provide erratic or inaccurate actuation and operation, severely affecting system performance and function. Add to Cart. It will NOT turn on the fans with your compressor. John Deere® Tractor - 6120. I did that because I've suspected it to be going bad because over 2 years, it seems like the A/C cycles off longer than it should, you can feel the air getting warmer until it cycles back on. Part Number: 68141376AB. Check for continuity between climate control unit Jump AC Relay. and are backed by the manufacturer's 12 month, 12,000 mile warranty. Anyways I took my car to get the A/C fixed and they told me it was half a pound over full (due to me trying to use the autozone special ac fixer upper) and that my "intermediate pressure switch" which is suppose to fluctuate from low to high is stuck on low (They did vacuum the system and check for leaks before coming to this conclusion). Pressure switches are in a wide range of industrial and residential applications like HVAC systems, well pumps, furnaces Air Conditioner Pressure Switch 3546241C1 6322132553. AC High Pressure Switch Fits Freightliner * High Quality AC High Pressure Switch * 7-16-20 UNF Thread * Opens At 265 PSI * Closes At 180 PSI * Switch Is Normally Closed * Sold Individually * Warranty On A-C Switches Against Defects In Workmanship and Material From Date Of Purchase ***High Quality Aftermarket Replacement Part (Not OEM)*** * Replaces OEM # A22-30930-001 The A/C pressure switch is mounted on both the high and low sides of your A/C. Compare this Product. However, in this step, you need to pay close The pressure switch can be removed without discharging refrigerant system. Remove the jumper from the low pressure switch harness and plug it back on the switch connectors. Free In-Store or Curbside Pick Up. I've purchased a new compressor to put on this second time around, but when I did the retrofit the first time around, I bought a new pressure switch. Free shipping Free shipping. 13. So no the pressure does not half to evacuated when changing the - 2009-2014 Ford F-150 Shop for the best A/C Pressure Switch for your 2006 Chevrolet Silverado 1500, and you can place your order online and pick up for free at your local O'Reilly Au A “low pressure switch” disengages the compressor clutch if there is excessive refrigerant loss (below 30 PSI). Kits come a/c pressure switch simply senses level of pressure applied to its end, called bulb, and tells the system if it's at specific level, safe enough to run compressor: A thermostatic expansion valve is a metering device that monitors the amount of refrigerant that enters an A/C's evaporator. $12. Help identifying switch: Datasheets, Manuals & Parts Identification: 4: Apr 3, 2021: Bathtub Pressure Sensor Switch: Technical Repair: 28: Jan 23, 2021: T: Electric Pressure Washer add Flow Switch and Timer Relay: General Electronics Chat: 0: Mar 28, 2020: A: Use a pressure switch to activate a light wirelessly o ask if anyone can: Wireless Shop for the best A/C Pressure Switch for your 2006 Chevrolet Silverado 1500, and you can place your order online and pick up for free at your local O'Reilly Au A/C Pressure Switch w/4 wires Isuzu N-Series GMC W-Series Trucks 1994-2010 - NEW. This could be the (ECC) Electronic Climate Control, (PCM) Powertrain Control Module or the (BCM) Body Control Module. I have a a/c manifold gauge coming to me so I can check the High/Low side pressure. 99. Pump, Hydraulic, Shaft, Drive Pin Bushing To Fit John Deere® - NEW (Aftermarket) For most cars, there is a schrader valve allowing you to replace the pressure switch without having to evacuate the system. When the pressure in your A/C rises or lowers too much, this switch turns off the compressor to protect it and the rest of the system from damage. Page top photo: the wires and connector The pressure switch shuts off the A/C compressor if the refrigerant pressure is too low or too high to protect your A/C system components from damage. w/OE# E35Y-19E561A: 2601191: 2005 1998: All: Pressure switch M10, w/OE# F3AZ-19D594C: 2601249: 2000 1998: All: Accum. A/C Pressure Switch for John Deere® Tractor, AL168231. follow the lines that come from the condenser mine was a 96 with the big condenser the lines crossed over the radiator Pressure: Too High. My next question is specifically on Low Side/High Side pressure and the operating/switch conditions on the 3-way pressure switch. Part# W8000073 - A/C High Pressure Side Switch Description: This is a Brand New Workhorse Air Conditioning High Pressure Side Switch. A “Trinary Switch” incorporates both high and low pressure cutoffs, plus adds an “electric fan engagement signal” (at 254 PSI) feature to help Brand new AC pressure cycling switch and O-ring gasket for all 1986-1987 Buick Grand National, Turbo Regal, and GNX. W. The switch may be designed to make contact either on pressure rise or on pressure fall. 0 H6 w/ 5 speed sport shift. you should do a pull test on all of the wires going to the switch and ecm and do a continuity test from the ecm to the switch. Wire side of female terminals. I'm getting a A/C compressor off, low refrigerant message on the computer and I have power at the switch, relay and compressor. NO-Check for B-CAN codes (see page 22-109). You can use a jumper wire to test if this fixes your problem. A/C Pressure Switch by Behr Premium eEuroparts. MRY. A/C Pressure Switch: R12 vs R134a - Part Numbers Are Different I retrofitted my truck awhile back and the a/c is not blowing anywhere as cold as it should be. Small size, light The dual pressure switch is physically a bigger sensor/switch in the a/c hard line by the headlight; the pressure sensor switch is smaller and goes to a white "double barrel shotgun" shaped connector. $47. So no the pressure does not half to evacuated when changing the - 2009-2014 Ford F-150 After Charging refrigerant instructions, all refrigerant types.