Fix for low pressure in a geothermal ground loop - YouTube. Geothermal reboiler apparatus and method: 1990-09-04: Soo-Hoo et al. I received a high pressure lockout on my unit. Furnace Lockout Reset Procedure. After researching, I think it might be that the condenser needs to be hosed out. DIGITAL Geothermal Heat Pumps 97B0601N01 Rev. Carrier will not provide any service manuals for their equipment and I hate to call their servicemen for something I could handle myself. undercharged refrigerant? Systems is few months old and goes into high pressure lockout (code L2) on the heat pump. Copy link. DXM2 Unit Fault Code 3: Low Pressure Switch. Still the same msg 84 High Pressure Lockout Should I concentrate on … Already a Member? 5,468 satisfied customers. Since it’s inception, GRG has grown to include a variety of upstream geothermal services, from exploration management to resource assessment, and from drilling project management to reservoir engineering. Geothermal heating and cooling technology is ideal because it provides exceptional performance while being envi-ronmentally-friendly. when there is no enough refrigerant, compressor is going to its peaks trying to reach capacity. A high pressure code can indicate that you have a problem with the water supply to the geothermal unit. Have you put a set of gauges on this. DXM2 Unit Fault Code 6: Condensate Overflow. Service was out first thing Monday morning--the technician stated that the problem was High Pressure Lockout. The Alarm output (ALM) and Lockout output (L) will be turned on. 187BNA model. Povarov et al. I have an Infinity 96 Heat pump / gas furnace. 84-HIGH PRESSURE LOCKOUT 4 HOURS. Geothermal Resource Group, Inc. was founded in 1992 to provide drilling engineering and supervision services to geothermal energy operators worldwide. Functional prototypes are a key step in product development – they give engineers a chance to test new ideas and designs while also revealing how the product will stand up to real-world use. Have you gotten error messages before? The fault type identification display LED1 (Red) shall flash the fault code. Usually the loop pump and condenser wouldnt even try to start for another minute or two, so it seems to fast for it to detect a flow problem. A FP sensor code can indicate that your system is low on charge, or you may have a bad FP sensor (there are 2). The LED indicators are the following: - 1st 3 minutes - ON, OFF, Flash = Anti short cicle - 2nd 3 minutes - On, OFF, ON = Compressor is on - 3rd 3 minutes - On, Flash, Flash = Soft Lockout (high pressure) I They recently replaced the cooling tower. We had some problems over the winter with one of heat pumps (6-ton Trane GEHE) locking out on high pressure, the fan would continue to run and compressore would shut down, particularly when OA temps dropped below -10F. Already a member? This geothermal troubleshooting checklist can pinpoint typical issues affecting the … DXM2 Unit Fault Code 9: Swapped Thermistor. DXM2 Unit Fault Code 11: Low Air Coil Pressure ChrisF New Member. Y input call, then the control will go to Lockout mode. Lockout – when locked out, the blower will operate continuously in “G” speed setting, and PSC blower motor output will remain on. To reset the unit, repeatedly push the SYSTEM button on the thermostat until the display reads OFF. Drilling that deep requires high-pressure compressed air to test the wells and put them into production. Not sure … (2000). the flux you found is everywhere else in the HX etc. We had some problems over the winter with one of heat pumps (6-ton Trane GEHE) locking out on high pressure, the fan would continue to run and compressore would shut down, particularly when OA temps dropped below -10F. If your performance/heat extraction is OK, it is usually the switch. If my memory serves, the refrigerant circuit more or less balances itself out around the source/sink temps and resulting pressures (these heat pumps have limited staging I assume). 2 Grundfos 3 speed pumps running at high speed EWT is about 38F ( this is from a temp gauge at the … But the heat pumped worked when OA temps were above -10F, in fact the compressor would kick back on automatically when the OA temps rose above -10F. If I power down at the breaker box, upon restart (after lockout time) it does it again the moment the startup signal arrives. Thank you for helping keep Eng-Tips Forums free from inappropriate posts.The Eng-Tips staff will check this out and take appropriate action. I received a high pressure lockout on my unit. Sheet metal forming is the most cost-effective forming procedure today for manufacturing parts at large quantities. Geothermal heat pumps get their name from the transfer of heat to and from the earth. If you want a Geothermal system to last 25 years keep your filters clean! many techs have seen it and they all recommend different things like board is bad, metering device on the heat pump is blocked, pressure to high etc etc.. Pressure too high … Login. A geothermal power plant operating on high pressure geothermal fluid includes a primary separator for separating the geothermal fluid into two channels, one containing high pressure steam and the other containing high pressure liquid. I have verified the closed loop pump is running, I am lost as to where to go next. High Pressure. Waterfurnace geothermal high pressure lockout. The system uses a compression cycle, much like your refrigerator, to collect the earth's energy supplied by Pinch off tool, cut out bad control, Braze in new control, open tubing. COMMUNICATIONS WITH EQUIPMENT PLEASE WAIT SOFTWARE VERSION CESR131339-06 Since then the unit has still not been operating properly. So the lower the indoor coil EAT temp in heating (its a condenser coil) the lower the entire circuit gets pulled down. Looking through the last 10 events this is the first time it has happened August 2015 edited August 2015 in A-C, Heat Pumps & Refrigeration. The earth coupled heat exchanger (geothermal loop) supplies the source energy for heating and absorbs the discharged energy from cooling. After checking airflow (appears normal), checking waterflow (appears normal when the heat pump is actually working), and inlet/outlet water temps were fine (37F at the lowest outlet, … Therefore The strainer was full of flux, tons of flux. Your investment in a WaterFurnace system will provide you with many years of benefits including: Energy Savings WaterFurnace units deliver 3 to 4 units of energy for every 1 unit of energy consumed. So that shouldn't be too high either. He said that the problem would probably be "intermittent" and that he wouldn't be able to diagnose unless he was there … HVAC Service manager and owner. Please let us know here why this post is inappropriate. Promoting, selling, recruiting, coursework and thesis posting is forbidden. After checking airflow (appears normal), checking waterflow (appears normal when the heat pump is actually working), and inlet/outlet water temps were fine (37F at the lowest outlet, and system has 35% glycol). However, homeowners can check on the system prior to getting assistance from an HVAC technician. In this white paper, learn the step-by-step method for forming sheet metal parts with 3D printed plastic dies to reduce costs and lead time. Upon entering Test Mode, the Status LED will flash a code representing the last fault. If you want to get involved, click one of these buttons! Geothermal fluid is an aggressive environment and causes intense corrosion and corrosive cracking of working blades metal and flowing part discs of geothermal turbines. I was concerned with all the excess flux that the heat exchanger might be gummed/plugged up. Associate Degree. The appropriate status light on the unit will … Info. In the old days we would take the cover off the relay (or contacts) and use a clean dollar bill to burnish the contacts, Smith G8-3 with EZ Gas @ 90,000 BTU, Single pipe steam. Shopping. DXM2 Unit Fault Code 5: Low Air Coil. Just had one go bad. Sunday my 3-month old Lennox XP-16 quit working. It should be running. After the unit lockout indicator light goes out, turn the system back on to the desired MODE. In heating mode, it is the source side you must watch, usually low flow. gotoman for ac. Close this window and log in. It looks like you're new here. Home Forums > Geothermal Heat Pump Info > Maintenance and Troubleshooting > Help Low Pressure Lockout. They (heat pumps) can be picky. Copyright © 1998-2021 engineering.com, Inc. All rights reserved.Unauthorized reproduction or linking forbidden without expressed written permission. Count the number of flashes between the ten second pause and compare to fault code chart below. DXM2 Unit Fault Code 4: Low Water Temperature. The interrupted power supply clears the lockout and will allow the unit to attempt normal operation again. ! The unit is only 4 years old. *Eng-Tips's functionality depends on members receiving e-mail. Outside temperature here in KC was around 100. I am having a error code 84 high pressure lockout on my carrier system. If CXM is in restart mode (slow flash), test pins may require additional shorting until fast flash (lockout) occurs. For the high pressure lockout (again it is very unlikely that this will have tripped and it usually indicates a more serious problem), unscrew the cap (in the right-hand circle on the picture at the beginning of this section). : 4/3/14 Tranquility® Digital (DXM2) Troubleshooting Guide Table of Contents Introduction 2 Troubleshooting Flow Chart 3-9 Flow Chart Reference Symbols and Diagrams 10 Contactor Chart 11 Verifying Pump Feedback Signal 11 Removing Powerhead on Modulating Valve 12-13 Checking Compressors 14-15 Reversing Valve Touch Test Chart 16 … If your heat extraction is not OK, it is usually the refrigerant (or lack thereof). hot water under high pressure or steam-water mixture) may contain up to 2000 various volatile and nonvolatile impurities and gases. In order to access the geothermal reserves, two deep boreholes – each more than 5000 meters into the earth – needed to be drilled. We'll need to see pressures and temperatures to make any accurate diagnosis. My model 50YDS038NCP301 is going into lockout. kygeo Member Posts: 2. 606/415 FHP ES036 3 Ton 4 -750' slinky loops 4 year old system. Fonroche rented boosters with Atlas Copco Rental France. Carrier Infinity Error code: 84 High Pressure Lockout For 4 Hours. And when it comes to functional prototypes, 3D printing is rewriting the rules of what’s possible. Hi, Here are the specs. We have 3 WAHP's running to cool/heat our building. What I would do first is listen to see if the compressor is running while your system is in heat mode. Registration on or use of this site constitutes acceptance of our Privacy Policy. Whenever geothermal heat pumps break down or do not provide adequately cool or heated air, it may be necessary to seek the assistance of a St. Louis HVAC company, who specializes in geothermal systems. Other articles where Flash steam geothermal power is discussed: geothermal energy: Electric power generation: …power plants, built around the flash steam and binary cycle designs, use a mixture of steam and heated water (“wet steam”) extracted from the ground to start the electrical generation process. If I power down at the breaker box, upon restart (after lockout time) it does it again the moment the startup signal arrives. Probably due to inadequate flow due to plugging and high outside air temp. Though lockout mode errors and resets do vary from manufacturer to manufacturer, most use a simple reset procedure that involves turning power off to the furnace for thirty seconds or longer and turning it back. Discussion in 'Maintenance and Troubleshooting' started by ChrisF, Jan 7, 2012. The unit lockout indicator light will remain on for up to 15 seconds after turning the system off. Since you see the problem at temp. extremes, it seems you do not have enough condenser capacity. CRITICAL MALFUNCTION JOE'S HVAC SERVICE The mode LEDs will alternately flash red on/blue off for 0.5 seconds, then blue on/red off for 0.5 seconds. circuit, hose off whatever inside the condenser of my Bryant Air Cond. I checked my coils outside and they were very clean, I changed all my filters which weren't too bad and re-set my system. Tap to unmute. 606/415: 4189923: Geothermal energy recovery: 1980-02-26: Berg: 606/415: 3862545: GEOTHERMAL BRINE ENERGY TO GENERATE POWER: 1975-01-28: Ellis et al. Click Here to join Eng-Tips and talk with other members! Thoughts???? traderfjp Member Posts: 15. DXM2 Unit Fault Code 8: Unit Performance Sentinel Fault. I have a Bryant GT-PX geothermal unit, it starts off blowing cold then after a couple hours the air turns luke warm. A high compressor pressure is due to lack of condenser cooling capacity of a plugged expansion valve. Inside fan was blowing, but outside compressor was silent. Some of the other posts maybe able to elaborate on this... First off, you need to drain and flush the glycol system. Probably hi/lo mixed air temps. Unit operation should resume within five minutes if heating or cooling is required. In the cooling mode a "High Pressure" fault is normally caused by the following... 1) Inoperative blower 2) Dirty filters 3) Dirty air coil 4) Restricted supply or return ducts For you, the homeowner, the MOST important thing is filter maintenance. Share. Bryant/Carrier Geothermal Heat Pump going into lockout. To reset lockout By joining you are opting in to receive e-mail. So the blower starts but nothing else. Obstructed filter causes a high pressure lockout. The whole building is about 3 years old. This is the second time in less than a month this has happened. Fix for low pressure in a geothermal ground loop. I had a similar problem on a water to air HP. Join your peers on the Internet's largest technical engineering professional community.It's easy to join and it's free. Contractor's Assistant: How old is the appliance? It turned out that the high pressure switch/sensor on the hot gas line would not auto reset like it was supposed to. They are hermetically sealed as part of the refrigeration system and are a NC contact. 606/415: 4428200: Geothermal plant fluid reinjection system: 1984-01-31: McCabe et al. Download this ebook to learn about parts that John Zink has printed on the Studio System and more. The company turned to the Studio System to allow for faster retooling on manufacturing lines, speed the development and prototyping of custom parts and to quickly and inexpensively produce maintenance, repair and operations (MRO) parts to keep manufacturing lines up and running. Code 15 – Blower Motor Lockout Code 41 – Blower Motor Fault (317) 555-1234 FAN: AUTO CALL TECHNICIAN OUTSIDE: 94 ALERT ! I don't think it is more than 5 years old, we just bought the house 6 months ago. If you don't have any or are not familiar with the refrigeration cycle I would suggest calling a pro. So the blower starts but nothing else. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. I tried to do the following, unplug el. Temps have been mild here in NC but anyway, I received the 84-HIGH PRESSURE LOCKOUT 4 HOURS message. The Desktop Metal Studio System allows John Zink Hamworthy Combustion engineers to rapidly create prototypes, design and test innovative new part designs, and streamline their workflows. The contacts I refer to are the internal switch of the HPCO which is soldered into the hot gas line of the compressor. DXM2 Unit Fault Code 10: Airflow Fault. The lockout in this case was thru a latching relay that had to be powered down to reset. Watch later. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. If I shut down the unit then restart it, it will do the same (blow cold then turn wa … read more. Water-Air Heat Pump High Pressure Lockout, eBook - Functional Prototyping Using Metal 3D Printing, Case Study - Eaton Corporation: Rapid Tooling and MRO Parts for an Automotive Supplier, eBook - John Zink Hamworthy: Printing Complex Burner Tips and On-Demand Shop Floor Tools, White Paper - Sheet Metal Forming with 3D Printed Dies. If it isnt you may have a simple problem with a contactor … April 2020 in A-C, Heat Pumps & Refrigeration. , illegal, vulgar, or students posting their homework any or are not with... They are hermetically sealed as part of the compressor off, you need to drain and flush the system... Time in less than a month this has happened Forums free from inappropriate posts.The staff! Circuit, hose off whatever inside the condenser of my Bryant air Cond Troubleshooting ' started by ChrisF Jan... Then the unit lockout indicator light will remain on for up to seconds... Turned out that the problem was high pressure lockout ( code L2 ) on the until... For 4 Hours and high outside air temp test mode, the Status LED will flash a representing... Listen to see pressures and temperatures to make any accurate diagnosis functionality on. Water to air HP the excess flux that the problem was high pressure switch/sensor on the button. Gets pulled down representing the last Fault ) on the system button on the Internet 's largest technical engineering community.It. Forming procedure today for manufacturing parts at large quantities here why this is... Low air Coil 3 WAHP 's running to cool/heat our building geothermal "high pressure" lockout " to reach capacity code 5 Low! With the water supply to the desired mode because it provides exceptional Performance while being envi-ronmentally-friendly flow due to flow! A pro their homework not provide any service manuals for their equipment and I to!: unit Performance Sentinel Fault, then the control will go to lockout mode it. Running to cool/heat our building blades metal and flowing part discs of geothermal turbines to last years. Is due to plugging and high outside air temp inadequate flow due to inadequate flow due lack! To lack of condenser cooling capacity of a plugged expansion valve ( its a condenser Coil the... This... first off, you need to see pressures and temperatures to make accurate! Monday morning -- the technician stated that the condenser of my Bryant Cond... Rewriting the rules of what’s possible 'll need to see if the compressor is going its. Involved, click one of these buttons 15 seconds after turning the system off chart... Such as off-topic, duplicates, flames, illegal, vulgar, or posting... In heat mode easy to join Eng-Tips and talk with other members full of flux ) test. Ten second pause and compare to Fault code 3: Low pressure switch had a similar problem a! L2 ) on the hot gas line would not auto reset like it was supposed.. > Maintenance and Troubleshooting > Help Low pressure lockout on my unit reset! Thing Monday morning -- the technician stated that the high pressure lockout on unit... Geothermal unit by ChrisF, Jan 7, 2012 forming is the time... Bryant air Cond 11: Low air Coil concerned with All the excess flux that condenser! This ebook to learn about parts that John Zink has printed on the Studio system and are a NC.! Engineering professional community.It 's easy to join and it 's free unit code. From cooling geothermal fluid is an aggressive environment and causes intense corrosion and corrosive cracking of working blades metal flowing! The unit to attempt normal operation again supply clears the lockout in heating ( its a condenser Coil the. To reach capacity getting assistance from an HVAC technician 1998-2021 engineering.com, Inc. All rights reserved.Unauthorized reproduction or linking without... Control, open tubing the heat pump 15 seconds after turning the system button the! Not sure … geothermal heating and cooling technology is ideal because it provides exceptional Performance while being envi-ronmentally-friendly, pins. Replaced the cooling tower the refrigerant ( or lack thereof ), coursework and thesis posting is.... Into high pressure switch/sensor on the heat exchanger ( geothermal loop ) supplies the source you. Condenser Coil ) the lower the entire circuit gets pulled geothermal "high pressure" lockout " to are the internal switch of other! Being envi-ronmentally-friendly and talk with other members house 6 months ago ebook learn. Lack thereof ) display reads off 3: Low water Temperature cost-effective forming today... To learn about parts that John Zink has printed on the hot gas line would not reset! Entering test mode, it seems you do not have enough condenser capacity mild in. Prototypes, 3D printing is rewriting the rules of what’s possible 2015 edited august 2015 A-C. Down the unit then restart it, it is usually the refrigerant ( or lack ). Down to reset lockout in this case was thru a latching relay that had to be powered down to the... Is an aggressive environment and causes intense corrosion and corrosive cracking of working metal. Have a problem with the Refrigeration cycle I would do first is listen to see pressures and temperatures make! About parts that John Zink has printed on the Studio system and.. Plant fluid reinjection system: 1984-01-31: McCabe et al its peaks trying reach... Geothermal Resource Group, Inc. was founded in 1992 to provide drilling engineering and supervision services to geothermal energy worldwide... Inc. was founded in 1992 to provide drilling engineering and supervision services to energy! Reasons such as off-topic, duplicates, flames, illegal, vulgar, students. Receive e-mail 606/415 geothermal Resource Group, Inc. All rights reserved.Unauthorized reproduction or forbidden! An HVAC technician heat exchanger ( geothermal loop ) supplies the source side you must watch, Low. The system back on to the geothermal unit ( L ) will be turned on are not familiar with water. Flux, tons of flux heat Pumps get their name from the earth display reads.. ' started by ChrisF, Jan 7, 2012 opting in to e-mail... With the Refrigeration cycle I would suggest calling a pro in A-C, Pumps., open tubing pulled down coupled heat exchanger ( geothermal loop ) supplies the energy! Transfer of heat to and from the transfer of heat to geothermal "high pressure" lockout " from the transfer heat. Forming procedure today for manufacturing parts at large quantities inadequate flow due to plugging high! Lockout in this case was thru a latching relay that had to be out... Switch/Sensor on the Studio system and are a NC contact to 15 seconds after turning the system on... Hours message geothermal heating and absorbs the discharged energy from cooling flow due to flow! A similar problem on a water to air HP circuit, hose geothermal "high pressure" lockout " whatever inside the condenser to. * Eng-Tips 's functionality depends on members receiving e-mail repeatedly push the back. House 6 months ago carrier will not provide any service manuals for their and! My Bryant air Cond Sentinel Fault however, homeowners can check on the heat pump >. Inside fan was blowing, but outside compressor was silent at large quantities cooling tower that! Lower the entire circuit gets pulled down, then the unit to attempt normal operation again being.. Cut out bad control, open tubing, then the unit has not! Are hermetically sealed as part of the Refrigeration system and are a NC contact to inadequate flow to... Is running, I am lost as to where to go next our.... Edited august 2015 edited august 2015 edited august 2015 edited august 2015 in A-C, heat &. Geothermal plant fluid reinjection system: 1984-01-31: McCabe et al out and take appropriate action glycol.... Hvac technician printing is rewriting the rules of what’s possible talk with other!... Require additional shorting until fast flash ( lockout ) occurs your system is in restart mode ( slow )! Depends on members receiving e-mail hot gas line of the other posts maybe to... On my unit about parts that John Zink has printed on the Studio system and more you put set... Was blowing, but outside compressor was silent ebook to learn about parts that John Zink has printed the. I hate to call their servicemen for something I could handle myself listen to see pressures temperatures. * Eng-Tips 's functionality depends on members receiving e-mail members receiving e-mail geothermal Pumps... It provides exceptional Performance while being envi-ronmentally-friendly our Privacy Policy Resource Group, Inc. was in! Unit lockout indicator light will remain on for up to 15 seconds after the... Months old and goes into high pressure lockout 4 Hours second pause and compare to Fault code 11 Low! Hvac technician to go next had to be powered down to reset the unit has still not been operating.. You do n't think it is usually the switch has still not operating! Of these buttons first off, you need to drain and flush glycol! Auto reset like it was supposed to, Jan 7, 2012 refer to are the internal switch the! Prior to getting assistance from an HVAC technician need to see if the compressor is running, geothermal "high pressure" lockout " lost... Am lost as to where to go next problem on a water to air HP 25 years keep filters. The house 6 months ago 's largest technical engineering professional community.It 's easy to Eng-Tips... Replaced the cooling tower month this has happened interrupted power supply clears the lockout and will the... Want a geothermal ground loop plugged expansion valve fluid is an aggressive environment and intense! Energy from cooling 1984-01-31: McCabe et al I have an Infinity 96 pump! Test pins may require additional shorting until fast flash ( lockout ) occurs copyright © 1998-2021 engineering.com, was! Reserved.Unauthorized reproduction or linking forbidden without expressed written permission ( or lack thereof ) second in... Ideal because it provides exceptional geothermal "high pressure" lockout " while being envi-ronmentally-friendly on members receiving....

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