This covers both air cooled chillers and water cooled chillers to. Usually seen on a water cooled machine, it is normal to wire a condenser water pd switch or flow switch into relevant terminals. Schaub youve just received a call from a new client who has a problem with a production chiller. Shuts down the chiller and requires manual reset c high refrigerant pressure. She specialized in the supply and service of air conditioning, ventilation and heating equipment, as. Even when your chiller is inspected and maintained regularly, its performance can degrade or deteriorate over time. The history of mcquay includes more than a century of successful activity. Point type description rangeunitsabc 1 lao device address 2 lao device application 3 lao setpoint f c 4 lao isn current limit % fla 5 lao heat setpoint f c. When it comes to hvac, york is one of the top manufacturers in the industry, making a wide variety of chillers to cool down any large building with ease. The most recent alarm will be shown first and the oldest alarm will be shown last. The yorktalk driver 3 compatibility with the york international system the yorktalk driver allows north to interface with york international chillers using the york talk protocol. Factory direct tech service bulletin commercial split ahu w vfd common issue 8819 pdf download.
Yk style g centrigual liquid chiller engineering guide. New york chillers supply york yvaa air cooled pdf thermo king sb 300 repair manual. The entire chiller must be cleaned, and the refrigerant replaced. Change bars revisions made to this document are indicated with a line along the left or right hand column in the area the revision was made. Simplicity diagnostics flash codes york central tech talk. This site uses cookies to offer you a better browsing experience. If the fault does not reset after cycling power, the board must be replaced. The chiller has suctiongas cooled, hermetic, scroll compressors. York chillers offer energy efficient solutions for any industrial or commercial cooling application. Ul 1995 heating and cooling equipment shrae 15 safety code for.
Each replacement part is manufactured and fitted for a specific model. In this video we take a look at common chiller faults and how to troubleshoot them. If the compressor is a hitachi screw then it will be. They are completely selfcontained and are designed for outdoor roof or ground level installation. York yt fault code ive never experienced ive been in the industry for 16 years and just about seen everything under the sun. Ycal0014sc, ycal0020sc, ycal0024sc, ycal0030sc, ycal0034sc, ycal0040sc, ycal0044sc. Millennium series aircooled liquid chillers hermetic scroll.
This led flashes a fault code in a series of green, amber or red light flashes to signal normal operation or system problems. Below is a list of bulletins that are consolidated here for your ease of access. One compressor from the considered circuit n has been running for at least 2 minutes and. The yorktalk driver york north building technologies. Check if control panel emergency stop switch and any remote emergency stop devices are in the off position. If the unit is functioning satisfactorily during the initial operating period, no safeties trip and the compressors cycle to control water temperature to setpoint, the chiller is ready to be placed into operation. Operational codes applications 4059 and 4060, points 56 and 58. Alarm codes alarm codes for if the unit is operated under abnormal conditions, an alarm code refer to the table below is indicated and the alarmled lamp is lighted.
If anyone have encounter the same fault on vsd communication failure i have tried several steps to solve by resetting the fault, remove the wire harness on the communication port between micro and logicboard but it last for a few days and appear the same fault. Continuing the his tory of innovation in both compressor design and variable speed drive vsd technology, johnson controls proudly introduces the. It is nonrestorable if this protection occurs six times successively in 1 hour. Ylaa0180 0516 style b 50 hz aircooled scroll chillers. All units have two compressors with independent refrigeration circuits to.
Check the programmed settings are correct for the options fi tted to the unit. We are raising the bar again with a leap forward in watercooled screw compressor chiller technology. Nuisance fault codes on sse control boards pdf download. Fault diagnosis by remote controller the remote controller can receive relevant error codes from the indoor unit.
Hi guys, i would like to get an advise from anyone who encounter the same issue on york aircooled chiller. Have a york reverse cycle air conditioner which was installed in the 3 year. Singlepoint nonfused disconnect switch with individual system breakers includes. Chiller passwords codes archive refrigerationengineer. All units have two compressors with independent refrigeration circuits to provide 2 stages of cooling. Last error when this button is pressed and released one time within five seconds, it will flash the last five flash codes on the boards led. York yvaa model aircooled chillers chiller fault codes york chiller troubleshooting york chiller maintenance. If you have any questions regarding any of the bulletins, please call our tech support line and one of our service managers will assist you. Leak check compressors, fittings, and piping to assure no leaks. Keep running at peak performance walk through the following steps to diagnose and address the most common hvac system issues. There is air, incompressible gas or foreign material in the refrigeration system.
The warning message should clear when the ambient air temperature rises above the programmed operating limit. If these simple steps do not solve your hvac problem, please call your york contractor with your system or unit model number for service. Installation, operation, iom 12063 and maintenance manual. Controls, startup, operation, service, and troubleshooting safety considerations installing, starting up, and servicing this equipment can be hazardous due to system pressures, electrical components, and equipment location roof, elevated structures, mechanical rooms, etc. In this case, you must deenergize, discharge completely.
These revisions are to technical in formation and any other changes in. Model ylaa aircooled scroll compressor liquid chillers. This fault is alarmed when it is detected that the average bias voltage is higher than 12. Valve is available in both manual and chiller actuated configurations.
York yk chillers are manufactured to the highest design and construction standards to ensure high performance, reliability and adaptability to all types of air conditioning installations. Opendrive design hermetic motor burnout can cause catastrophic damage to a chiller. Rthd and rtac control operation, setup and troubleshooting for rtac and rthd units with tracer ch530 controls the purpose of this bulletin is to provide control operation and general troubleshooting information on the rtac air cooled chillers and rthd water cooled chillers with the ch530 controls. Print operating data or system fault shutdown history for last six faults. Have fire extinguishers available for all brazing operations. These revisions are to technical in formation and any other changes in spelling, grammar or formatting are not included. The unit starts and stops frequently possible causes. Certain models of york furnaces have a builtin flashing lightemitting diode led located behind a clear cover in the lower door of the furnace. Learn more about our watercooled york hvac chillers. The york optiview control center is a factory mounted, wired and tested microprocessor based control system for centrifugal chillers. General this publication contains startup, controls, operation, and troubleshooting information for the 4850hg rooftop units. This chiller sounds very much like the hitachi samurai chiller which is badged up as a york machine. The units are intended for cooling water or glycol solutions and are not suitable for purposes other than those speci. However, i have a york centrifugal that threw me a curve ball yesterday and a fault code ive never seen.
Basically the 6c fault relates to condenser flow failure. Ycrs watercooled remotecondenser chillers 81 tons through 194 tons 285 kw through 682 kw 60hz. Chiller parts condensing and outdoor packaged unit parts residential and light commercial parts. View and download york ylaa operation manual online. Leaving liquid drops below the programmed low limit faster than the unit can unload. Model yvwa variablespeed, watercooled screw compressor chillers. If you are being in the long waiting lists, this is also the perfect time to read or even being on an enjoyable trip. Controls, startup, operation, service, and troubleshooting. This covers both air cooled chillers and water cooled chillers. Sep 03, 2017 in this video we take a look at common chiller faults and how to troubleshoot them. Reduce your consumption yvaa chillers are johnson controls most ef. With advanced technology, aircooled water chiller systems featuring our ylaa chillers offer remarkable realworld performance.
E hall, specializing in the production of refrigeration and freezing equipment, was founded. In cases of equipment integration into a bms, the same faults are communicated via the standard communication protocols. Pumps can fail, process lines can clog, refrigerant can leak, and any number of problems associated with component aging or changing environmental conditions can occur table 1. If the chiller does not have the ability to start the pumps, the chiller.
Theres too much or too little refrigerant in the system. York air conditioner timer light blinks after working for. Display fault possible causes action e01 no flow or flow insufficient flow switch or turbine water filter is dirty change the filter element air in the water system releas the air of the water system pump is not running check the fuse or motor protection circuit breaker flow sensor has no function visual check of. The attachment is a collection of chiller passwords rs chillerman chiller passwords codes archive forums forums technical refrigeration refrigeration books chiller passwords codes. The york yk chillers, manufactured by johnson controls, offer a complete. If it has opened, check for proper combustion air, proper inducer operation, and primary heat exchanger failure or burner problem. The driver connects, via an rs232 serial connection, to a york translator, xl translator fig. Energy efficient watercooled chillers for industrial or commercial cooling applications.
Johnson controls makes no commitment to update or provide current information automatically to the manual or product owner. Chiller units built with special options, modifications, or conversions are not covered in this manual. Continuing the his tory of innovation in both compressor design and variable speed drive vsd technology, johnson controls proudly introduces the york yvwa. If the chiller evaporator water temperature drops below the freeze setpoint the chiller will attempt to start the water pumps to avoid evaporator freeze. If your unit is experiencing issues or displaying fault codes, knowing what is causing it can be tricky. Johnson controls can handle many challenges with its innovative.
History of fault shutdown data for up to the last six fault shutdown conditions an rs port, in conjunction with this. Yvaa style a aircooled screw compressor liquid chillers with. This nolight condition occurred 3 times 2 retries during the call for heat before locking out. By continuing to navigate through this site or by clicking approve, you consent to the use of cookies on your device as described in our privacy notice. Providing technical support to licensed hvac contractors. Simplicity fault codes and set up steady on led a steady on led, or an led that does not light at all when power is applied, indicates a possibly defective board. Need to decipher points and integrate to tridium ax. Ciat chiller troubleshooting manual ciat chiller controller ciat chiller fault codes ciat xtra connect manual york centrifugal chiller manual pdf maintenace manual screw chiller carrier centrifugal chiller manual 30gx carrier chiller maintenance manual ciat are 72500 troubleshooting manual troubleshooting manual power ciat. This covers both air cooled chillers and water cooled chillers to help you learn hvac building services engineering.
Liquid temperature reset via a johnson controls isn. Aquaforce 30xa aircooled liquid chiller building solutions. She specialized in the supply and service of air conditioning, ventilation and heating equipment, as well. Fault codes evaporator freezing protection fault code. It provides control of chiller operation and monitoring of chiller sensors, actuators, relays and switches. York yvaa aircooled chiller fault vsd communication. Fault codes applications 4059 and 4060, points 57 and 59.
Yvaa chillers are johnson controls most efficient aircooled chillers. To find out if your pro chiller is compatible with s system dashboard, contact us below. Need the appropriate york equipment data maps aka york talk points lists for this chiller. Aquaforce 30xa chillers were designed from the ground up to meet the efficiency demands of today and the future by providing premium aircooled chiller packages for contractors, consulting engineers and building owners.
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