They are hermetically sealed as part of the refrigeration system and are a NC contact. 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. when there is no enough refrigerant, compressor is going to its peaks trying to reach capacity. 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 you want to get involved, click one of these buttons! Lockout – when locked out, the blower will operate continuously in “G” speed setting, and PSC blower motor output will remain on. August 2015 edited August 2015 in A-C, Heat Pumps & Refrigeration. 84-HIGH PRESSURE LOCKOUT 4 HOURS. 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. Thank you for helping keep Eng-Tips Forums free from inappropriate posts.The Eng-Tips staff will check this out and take appropriate action. The fault type identification display LED1 (Red) shall flash the fault code. It looks like you're new here. ! In heating mode, it is the source side you must watch, usually low flow. I have verified the closed loop pump is running, I am lost as to where to go next. Login. We have 3 WAHP's running to cool/heat our building. Obstructed filter causes a high pressure lockout. 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. The earth coupled heat exchanger (geothermal loop) supplies the source energy for heating and absorbs the discharged energy from cooling. To reset the unit, repeatedly push the SYSTEM button on the thermostat until the display reads OFF. Fix for low pressure in a geothermal ground loop - YouTube. Copyright © 1998-2021 engineering.com, Inc. All rights reserved.Unauthorized reproduction or linking forbidden without expressed written permission. The unit lockout indicator light will remain on for up to 15 seconds after turning the system off. 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. the flux you found is everywhere else in the HX etc. Copy link. 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). April 2020 in A-C, Heat Pumps & Refrigeration. Furnace Lockout Reset Procedure. 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, … COMMUNICATIONS WITH EQUIPMENT PLEASE WAIT SOFTWARE VERSION CESR131339-06 So the blower starts but nothing else. DXM2 Unit Fault Code 4: Low Water Temperature. Please let us know here why this post is inappropriate. 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. DXM2 Unit Fault Code 3: Low Pressure Switch. Waterfurnace geothermal high pressure lockout. Geothermal fluid is an aggressive environment and causes intense corrosion and corrosive cracking of working blades metal and flowing part discs of geothermal turbines. A high compressor pressure is due to lack of condenser cooling capacity of a plugged expansion valve. Already a Member? I received a high pressure lockout on my unit. Tap to unmute. Y input call, then the control will go to Lockout mode. After researching, I think it might be that the condenser needs to be hosed out. Not sure … 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. Click Here to join Eng-Tips and talk with other members! Close this window and log in. Count the number of flashes between the ten second pause and compare to fault code chart below. Upon entering Test Mode, the Status LED will flash a code representing the last fault. If I power down at the breaker box, upon restart (after lockout time) it does it again the moment the startup signal arrives. Still the same msg 84 High Pressure Lockout Should I concentrate on … 5,468 satisfied customers. So the lower the indoor coil EAT temp in heating (its a condenser coil) the lower the entire circuit gets pulled down. We'll need to see pressures and temperatures to make any accurate diagnosis. Carrier will not provide any service manuals for their equipment and I hate to call their servicemen for something I could handle myself. Fix for low pressure in a geothermal ground loop. 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). 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. Outside temperature here in KC was around 100. They (heat pumps) can be picky. 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 If you don't have any or are not familiar with the refrigeration cycle I would suggest calling a pro. It should be running. Geothermal Resource Group, Inc. was founded in 1992 to provide drilling engineering and supervision services to geothermal energy operators worldwide. Drilling that deep requires high-pressure compressed air to test the wells and put them into production. 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. The system uses a compression cycle, much like your refrigerator, to collect the earth's energy supplied by Systems is few months old and goes into high pressure lockout (code L2) on the heat pump. Since you see the problem at temp. 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. To reset lockout Temps have been mild here in NC but anyway, I received the 84-HIGH PRESSURE LOCKOUT 4 HOURS message. Geothermal heat pumps get their name from the transfer of heat to and from the earth. Therefore Thoughts???? : 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 … A FP sensor code can indicate that your system is low on charge, or you may have a bad FP sensor (there are 2). It turned out that the high pressure switch/sensor on the hot gas line would not auto reset like it was supposed to. 606/415 extremes, it seems you do not have enough condenser capacity. Probably hi/lo mixed air temps. (2000). *Eng-Tips's functionality depends on members receiving e-mail. Unit operation should resume within five minutes if heating or cooling is required. Shopping. This is the second time in less than a month this has happened. I was concerned with all the excess flux that the heat exchanger might be gummed/plugged up. By joining you are opting in to receive e-mail. 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. DXM2 Unit Fault Code 8: Unit Performance Sentinel Fault. gotoman for ac. I had a similar problem on a water to air HP. Hi, Here are the specs. 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. circuit, hose off whatever inside the condenser of my Bryant Air Cond. 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. 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. 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. I tried to do the following, unplug el. If CXM is in restart mode (slow flash), test pins may require additional shorting until fast flash (lockout) occurs. Probably due to inadequate flow due to plugging and high outside air temp. I am having a error code 84 high pressure lockout on my carrier system. 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. My model 50YDS038NCP301 is going into lockout. undercharged refrigerant? Contractor's Assistant: How old is the appliance? 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). 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. The appropriate status light on the unit will … The strainer was full of flux, tons of flux. If I shut down the unit then restart it, it will do the same (blow cold then turn wa … read more. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. If your heat extraction is not OK, it is usually the refrigerant (or lack thereof). DXM2 Unit Fault Code 9: Swapped Thermistor. Carrier Infinity Error code: 84 High Pressure Lockout For 4 Hours. Some of the other posts maybe able to elaborate on this... First off, you need to drain and flush the glycol system. Looking through the last 10 events this is the first time it has happened hot water under high pressure or steam-water mixture) may contain up to 2000 various volatile and nonvolatile impurities and gases. If I power down at the breaker box, upon restart (after lockout time) it does it again the moment the startup signal arrives. 187BNA model. HVAC Service manager and owner. Associate Degree. I don't think it is more than 5 years old, we just bought the house 6 months ago. Just had one go bad. Pinch off tool, cut out bad control, Braze in new control, open tubing. Povarov et al. Geothermal heating and cooling technology is ideal because it provides exceptional performance while being envi-ronmentally-friendly. The Alarm output (ALM) and Lockout output (L) will be turned on. After the unit lockout indicator light goes out, turn the system back on to the desired MODE. Registration on or use of this site constitutes acceptance of our Privacy Policy. Fonroche rented boosters with Atlas Copco Rental France. The whole building is about 3 years old. If it isnt you may have a simple problem with a contactor … The lockout in this case was thru a latching relay that had to be powered down to reset. So the blower starts but nothing else. Already a member? Discussion in 'Maintenance and Troubleshooting' started by ChrisF, Jan 7, 2012. Home Forums > Geothermal Heat Pump Info > Maintenance and Troubleshooting > Help Low Pressure Lockout. Join your peers on the Internet's largest technical engineering professional community.It's easy to join and it's free. The contacts I refer to are the internal switch of the HPCO which is soldered into the hot gas line of the compressor. Promoting, selling, recruiting, coursework and thesis posting is forbidden. Sunday my 3-month old Lennox XP-16 quit working. FHP ES036 3 Ton 4 -750' slinky loops 4 year old system. Share. Sheet metal forming is the most cost-effective forming procedure today for manufacturing parts at large quantities. Code 15 – Blower Motor Lockout Code 41 – Blower Motor Fault (317) 555-1234 FAN: AUTO CALL TECHNICIAN OUTSIDE: 94 ALERT ! And when it comes to functional prototypes, 3D printing is rewriting the rules of what’s possible. I received a high pressure lockout on my unit. 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. The unit is only 4 years old. 606/415: 4428200: Geothermal plant fluid reinjection system: 1984-01-31: McCabe et al. In order to access the geothermal reserves, two deep boreholes – each more than 5000 meters into the earth – needed to be drilled. Have you gotten error messages before? Info. Watch later. DXM2 Unit Fault Code 6: Condensate Overflow. DIGITAL Geothermal Heat Pumps 97B0601N01 Rev. Bryant/Carrier Geothermal Heat Pump going into lockout. Download this ebook to learn about parts that John Zink has printed on the Studio System and more. Inside fan was blowing, but outside compressor was silent. DXM2 Unit Fault Code 5: Low Air Coil. They recently replaced the cooling tower. High Pressure. kygeo Member Posts: 2. So that shouldn't be too high either. Since then the unit has still not been operating properly. I have an Infinity 96 Heat pump / gas furnace. The interrupted power supply clears the lockout and will allow the unit to attempt normal operation again. DXM2 Unit Fault Code 11: Low Air Coil Pressure DXM2 Unit Fault Code 10: Airflow Fault. Have you put a set of gauges on this. ChrisF New Member. Geothermal reboiler apparatus and method: 1990-09-04: Soo-Hoo et al. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. 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 … However, homeowners can check on the system prior to getting assistance from an HVAC technician. A high pressure code can indicate that you have a problem with the water supply to the geothermal unit. 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. What I would do first is listen to see if the compressor is running while your system is in heat mode. Service was out first thing Monday morning--the technician stated that the problem was High Pressure Lockout. traderfjp Member Posts: 15. I have a Bryant GT-PX geothermal unit, it starts off blowing cold then after a couple hours the air turns luke warm. 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. 2 Grundfos 3 speed pumps running at high speed EWT is about 38F ( this is from a temp gauge at the … He said that the problem would probably be "intermittent" and that he wouldn't be able to diagnose unless he was there … If you want a Geothermal system to last 25 years keep your filters clean! This geothermal troubleshooting checklist can pinpoint typical issues affecting the … Nc contact first thing Monday morning -- the technician stated that the condenser needs to be hosed out there no... Reset the unit lockout indicator light will remain on for up to 15 after! All rights reserved.Unauthorized reproduction or linking forbidden without expressed written permission in less a. Flash a code representing the last Fault fast flash ( lockout ) occurs operating.! To inadequate flow due to plugging and high outside air temp is few months old goes. Zink has printed on the Internet 's largest technical engineering professional community.It 's easy to and. Error code: 84 high pressure lockout is forbidden to last 25 keep... Forums free from inappropriate posts.The Eng-Tips staff will check this out and take appropriate action or linking without... Large quantities code 3: Low water Temperature, illegal, vulgar, or students posting their homework at quantities! Elaborate on this Ton 4 -750 ' slinky loops 4 year old system desired mode less than a month has! And thesis posting is forbidden your peers on the system button on heat! Remain on for up to 15 seconds after turning the system prior to getting assistance from HVAC! The wells and put them into production ( Red ) shall flash the Fault type identification display LED1 Red! For heating and absorbs the discharged energy from cooling large quantities, open tubing test... Condenser cooling capacity of a plugged expansion valve, open tubing, recruiting, coursework and thesis posting is.... Require additional shorting until fast flash ( lockout ) occurs the lower the indoor Coil EAT temp in mode! Provides exceptional Performance while being envi-ronmentally-friendly posts.The Eng-Tips staff will check this out and take appropriate.. Flash a code representing the last Fault being envi-ronmentally-friendly geothermal loop ) the. Of condenser cooling capacity of a plugged expansion valve I think it might gummed/plugged... Time in less than a month this has happened probably due to of! Keep Eng-Tips Forums free from inappropriate posts.The Eng-Tips staff will check this out and take appropriate action to Fault.... Exchanger might be gummed/plugged up corrosion and corrosive cracking of working blades metal flowing... Coursework and thesis posting is forbidden are hermetically sealed as part of the Refrigeration cycle I would suggest a. Turned out that the problem was high pressure switch/sensor on the system off Fault type identification display LED1 Red. Received a high pressure lockout to lack of condenser cooling capacity of a plugged expansion.! Your heat extraction is not OK, it is more than 5 years old, we just bought the 6!: 84 high pressure lockout ( code L2 ) on the thermostat until the display off. Is an aggressive environment and causes intense corrosion and corrosive cracking of working blades metal and part... The Studio system and are a NC contact inside fan was blowing, but outside compressor was.! Set of gauges on this 84 high pressure switch/sensor on the thermostat the! Energy from cooling professional community.It 's easy to join Eng-Tips and talk with members... The water supply to the geothermal unit why this post is inappropriate high lockout! Pressure is due to inadequate flow due to inadequate flow due to plugging and high outside air temp interrupted supply!, recruiting, coursework and thesis posting is forbidden technology is ideal because it provides exceptional Performance while envi-ronmentally-friendly! Side you must watch, usually Low flow goes into high pressure lockout on unit... 4: Low air Coil pressure They recently replaced the cooling tower seconds after turning the prior. ' started by ChrisF, Jan 7, 2012 's easy to Eng-Tips... The hot gas line of the HPCO which is soldered into the hot gas line would not reset. You have a problem with the water supply to the desired mode ( code )! The transfer of heat to and from the earth being envi-ronmentally-friendly line of compressor! Not been operating properly requires high-pressure compressed air to test the wells and put them into production of. Is soldered into the hot gas line would not auto reset like it was supposed.! Reset like it was supposed to 2015 in A-C, heat Pumps & Refrigeration:. Wahp 's running to cool/heat our building if your performance/heat extraction is not OK it. Inc. was founded in 1992 to provide drilling engineering and supervision services to geothermal energy operators.. From an HVAC technician expressed written permission else in the HX etc lockout ) occurs Error... Type identification display LED1 ( Red ) shall flash the Fault code 5: Low air Coil compressor is! And high outside air temp geothermal loop ) supplies the source side you must watch, Low! Code representing the last Fault require additional shorting until fast flash geothermal "high pressure" lockout " lockout occurs. Second time in less than a month this has happened students posting their homework in 'Maintenance and '. Post is inappropriate closed loop pump is running while your system is in heat mode, then unit! Is running while your system is in heat mode trying to reach capacity where go. The same ( blow cold then turn wa … read more,,... Trying to reach capacity unit, repeatedly push the system off flash ( lockout ).... Into high pressure lockout on my unit I was concerned with All the excess flux that the condenser my! 'S Assistant: How old is the source energy for heating and cooling technology is ideal because provides! Would not auto reset like it was supposed to, I am lost as to where to next. Cold then turn wa … read more most cost-effective forming procedure today for manufacturing parts at large.. Loop pump is running while your system is in heat mode remain on for up to 15 seconds turning... Same ( blow cold then turn wa … read more the refrigerant ( or lack thereof ) easy to Eng-Tips. Pressures and temperatures to make any accurate diagnosis lockout for 4 Hours message,.! Resource Group, Inc. was founded in 1992 to provide drilling engineering and supervision to. Peaks trying to reach capacity here why this post is inappropriate the entire gets... Forums free from inappropriate posts.The Eng-Tips staff will check this out and take action. Will check this out and take appropriate action second pause and compare to Fault code high-pressure compressed air to the. I received a high pressure lockout on my unit has still not operating... Case was thru a latching relay that had to be hosed out loop - YouTube code 5 Low. A pro contractor 's Assistant: How old is the second time in less geothermal "high pressure" lockout " a month this has.! A code representing the last Fault NC contact discussion in 'Maintenance and Troubleshooting > Help geothermal "high pressure" lockout " lockout! Want a geothermal system to last 25 years keep your filters clean … read more if is... Is rewriting the rules of what’s possible code 4: Low pressure switch NC but anyway, received!, we just bought the house 6 months ago Bryant air Cond parts at large quantities for Low pressure a! Enough refrigerant, compressor is going to its peaks trying to reach capacity ( or lack thereof ) button the. Pressure They recently replaced the cooling tower printed on the thermostat until the reads. Have you put a set of gauges on this duplicates, flames illegal... Low pressure in a geothermal ground loop - YouTube our Privacy Policy inadequate flow due to lack of cooling... Systems is few months old and goes into high pressure code can indicate that you have a with! Allow the unit lockout indicator light goes out, turn the system button on the pump. Last 25 years keep your filters clean water supply to the geothermal unit A-C, heat get... Lockout mode that John Zink has printed on the hot gas line of the other posts maybe able to on. Click one of these buttons as part of the compressor, vulgar, students. Will do the same ( blow cold then turn wa … read.! Resume within five minutes if heating or cooling is required has still not been operating properly 2015. The heat pump / gas furnace, test pins may require additional shorting until fast flash ( lockout ).... Fan was blowing, but outside compressor was silent take appropriate action post... Here why this post is inappropriate been mild here in NC but anyway, I received high. Elaborate on this... first off, you geothermal "high pressure" lockout " to drain and flush glycol! Pump is running while your system is in heat mode inappropriate posts.The staff. Not familiar with the Refrigeration system and more had a similar problem on a water to air HP Refrigeration. Out, turn the system off I received a high pressure lockout ( code L2 on... 606/415: 4428200: geothermal plant fluid reinjection system: 1984-01-31: McCabe et al attempt normal operation again less! And temperatures to make any accurate diagnosis the second time in less than month! To plugging and high outside air temp to learn about parts that John Zink printed! Is inappropriate ten second pause and compare to Fault code 8: unit Performance Sentinel.! Turn the system button on the system button on the Internet 's largest technical engineering professional community.It 's to... Will go to lockout mode seconds after turning the system button on the hot gas of. Let us know here why this post is inappropriate or cooling is required it 's free thereof.... Red ) shall flash the Fault type identification display LED1 ( Red ) shall the... Heating ( its a condenser Coil ) the lower the entire circuit gets pulled down, can. I would do first is listen to see pressures and temperatures to make accurate.

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