- Phase unbalance or reversal. They do not contain full service procedures necessary for the continued successful operation of this equipment. The heat from return chilled water and from the pump heat loss will try to maintain the ... • Free cooling is active : Chiller water flow is present & there is a call for cooling. 175-450 ton units (60 Hz); 125-450 ton units (50 Hz). You're welcome, glad I could help. provides a 120 signal whenever the chiller is running. Typically, a phase loss is caused by a blown fuse, thermal overload, broken wire, worn contact or mechanical failure. Ask Our Pros-Owner Assistance - NO DIY advice will be given. TRANE RTHD Chiller "MP: Reset Has Occurred" Alarm on CH530 Controller. - Phase loss/Power loss. The extensive Trane chiller product line was developed based on decades of knowledge and industry leadership, and includes centrifugal, helical-rotary and scroll compressor chillers, ranging in capacities from 20 to 4,000+ tons. Our 20th year anniversary is May 21, 2020. Trane Tracer Summit TM building automation systems include pre-engineered and ß exible control for chiller plants. Product Data. NOTICE… if this unit is replacing a purge unit on a YORK chiller with either a “Micro-Panel” or “Optiview” control panel, you MUST wire the chiller “Run Signal” according to the Electrical Schematic Figure 5A on page 30. Quickly troubleshooting a phase loss and determining the root cause is often difficult. Learn more about Macromatic's Three-Phase Monitor Relays to prevent damage to your critical motors and equipment. An index into the event action table. Page 149 Diagnostics Table 80. Anything below this for 2 minutes will trigger alarm and shut chiller off. - Over/Under voltage. Yes... we are 20 years old. Trane TR150 Variable Frequency Drive Guide Specification Section 15172 I. The key to happiness is lower expectations. Trane 125 through 400-ton air-cooled Rotary chillers are leading the marketplace into the 21st century with innovative design features that provide benefits no other chiller can match. Often measurements yield confusing values that require a great deal of complex analysis to correctly interpret. As soon as the phase monitor on the chiller detects a phase loss, it shuts down the chiller AND condensers.. Trane CGAM chillers have three distinct leaving water categories: † standard, with a leaving solution range of 42 to 65°F (5.5 to 18°C) † low temperature process cooling, with leaving solution range of 10 to 65°F (-12 to 18°C) Series R Air-Cooled Helical Rotary Liquid Chillers – RTAC Plus 140 – 350 Ton […] Control System for Chillers RTWD/RTUD 060-250 User Guide RLC-SVU05A-E4. Recent Articles for:Three-Phase Monitor Relays. … The alarms were mainly MP resets and starter comm loss following an MP reset. The devices provide protection against phase loss, phase reversal, and phase unbalance due to blown fuses, broken wires or worn contacts. «Adaptive Control™», features summary • Ensures safe operation of the chiller. A refrigerant loss detector and alarm, the detector device suitable for installation in the piping of a refrigeration system which utilizes a liquid/vapor phase change substance as the refrigerant. INITIAL START-UP… 1. Is this chiller on BacNet communication? If a fault occurs, one of over 90 individual dia-gnostic and operating codes will displayed direct-ly on the control module. If a fault occurs, one of over 90 indi-vidual diagnostic and operating codes will displayed directly on the control module. Alarm and Status Relay Outputs (Programmable Relays) 48 Relay Assignments Using TechView 49 Low Voltage Wiring 49 Emergency Stop 49 External Auto/Stop 49 External Circuit Lockout 50 Ice-Building Option 50 Optional External Chilled-Water Set Point (ECWS) 51 Optional Current Limit Setpoint 51 Optional Tracer Comm 3 Interface 53 Meanwhile, damage and downtime of the equipment continues to rise. Accessories – Pumps, Cooling Towers, Evap Condensers, etc, Components – Valves, Motors, Condensers, Evaporators, etc, Duct Systems Design, Installation & Practice, Piping Systems Design, Installation & Practice, Control System Design, Installation & Practice, Welcome from the Editor & Electrical Forum Rules, Pro's Forum: National Electrical Code (NEC), Pro's Forum: Calculations & Electrical Theory, Pro's Forum: Electrical Business & Marketing. Chillers “CO” and Later Design Sequence Packaged Air-Cooled Chiller, RTAA 130-400 Remote Evaporator Air-Cooled Chiller, RTAA 130-200 Models RTAA-130 RTAA-170 RTAA-240 RTAA-340 RTAA-140 RTAA-185 RTAA-270 RTAA-370 RTAA-155 RTAA-200 RTAA-300 RTAA-400 Part No. Other than that if power is not being cycled would recommend the software be upgraded. Some Trane chillers do not have oil pumps and are driven by a pressure difference between the evap and cond of 280Pa. When one phase of a three-phase system is lost, a phase loss occurs. Voltages and currents in a three-phase system do not typically just drop to zero when a phase is lost. The RTAC series features Trane’s exclusive Adaptive Control ™ logic, which monitors the control variables that govern the operation of the chiller unit. Hi guys, A lil' bit of introduction: I am a fresh-grad project engineer in a small-ish HVAC company and recently, a client of the company called us to troubleshoot a Trane chiller as it is not providing sufficiently cold chilled water. A phase loss will sometimes call out a phase reversal alarm. Best regards . If you do not have a C wire you can run a new wire from the HVAC to the LS-90 or provide 24VAC power to operate the LS-90 using a standard 24VAC wall transformer. Components – Coils, Heaters, Motors, etc. GENERAL ... input phase loss condition, the VFD shall be able to be programmed to either ... trip off while displaying an alarm, issue a warning while running at reduced output capacity, or issue a … • Keeps chiller … 2, 3, 4 & 5 Tons Power output is greatly reduced and starting is not possible in this condition. It could also be that there has been a ground fault in the motor and the chiller … A three-phase monitor relay protects against damage caused by phase loss as well as other three-phase fault conditions. - Welded contactors. A three-phase monitor relay, also called a phase failure relay, is an economical investment that is simple to install. General information ... are given as a guide to good practice in the installation, start-up, operation, and maintenance by the user, of Trane CH530 chiller control system on chillers. • Alarm - Latching (standard) • Alarm Auto reset • Alarm • Warning • Unit Limit Mode (standard) • Compressor Running (standard) • Maximum Capacity reached (standard) • Circuit fault. We have 1 Trane RTWD manual available for free PDF download: Installation Operation & Maintenance Trane RTWD Installation Operation & Maintenance (96 pages) Series R Helical Rotary Water-Cooled Liquid and Compressor Chillers Alarm Event Class [1–3] Numeric. Communication diagnostics (continued) Comm Loss: Evaporator Pump 1 Fault Input Continual loss of communication between the MP and Comm Loss: Evaporator Pump 1 Fault Input Chiller Normal Latch the Functional ID has occurred for a 35-40 second Remote period. Typically, a phase loss is caused by a blown fuse, thermal overload, broken wire, worn contact or mechanical failure. Further, the relay provides clear indication of the fault present allowing for rapid troubleshooting and reduced downtime. Three-phase monitor relays can be designed into new installations or easily retrofitted into existing installations. A phase loss that goes undetected can rapidly result in unsafe conditions, equipment failures, and costly downtime. Lose any phase. Eaton’s D65 phase monitoring relays protect loads from voltage fault conditions. A phase loss that goes undetected can rapidly result in unsafe conditions, equipment failures, and costly downtime. Unequaled Reliability «Adaptive Control™», features summary • Ensures safe operation of the chiller. Post photos, respond to polls and access other special features. During the troubleshooting, the service crew noticed that the alarm history is full of the alarm "MP: Reset Has Occurred". mounted on Trane RTAD chillers. — Do NOT store or use gasoline or other flammable vapors and liquids or combustible materials in the vicinity of this or any other appliance. I can't remember what it called them though. Also for: R series. RTHC chiller pdf manual download. Gain access to our free AOP (Ask a Professional) Section to get real answers for your questions. This can potentially leave the equipment in a 'locked rotor' state which will overheat and damage the equipment even more rapidly. X39560468-01 Order Equipment, Parts, Literature and track Order Status ... to all or partial loss of phase. Several models are available providing different types of protection and multiple voltage ranges are offered to fit most three phase applications. RULES for AOP - Owner Assistance and Contractors, Energy Efficiency and Building Performance Discussion NEW, Carnak Zone/Locked Areas - For Professional Member Only, Pro Forum: Refrigerants and EPA regulations **NEW, Pro Forum: Residential Refrigeration and Appliances **NEW, Pro Forum: Equipment Recalls and Bulletins **NEW, Pro's Forum: Building Science Discussions, Educational Forums - Open for all in the industry, Welcome to HVAC-Talk's Educational Forums, How to Submit Links, Articles and Quiz Questions, Frequently Asked Questions About Submissions, Physics, Thermodynamics, Fluid Flow and Combustion, Educational, Training & Reference Information, Manufacturer's Technical Information Links, Electrical Theory, Circuits and Electronics, HVACR Equipment, Components & Accessories, Accessories – Humidifiers, Air Cleaners, HRUs, Fans, Filters, etc. I have seen some diagnostics, for whatever reason, that you couldn't clear with the display. Its just the pumps and air … See it. Page 62 Installation – Electrical Table 21 - Alarm and Status Relay Output Confi guration Table Diagnostics Alarm - Latching This output is true whenever there is any active diagnostic that requires a manual reset to clear, that affects either the Chiller, the Circuit, or any of the Compressors on a circuit. Each compressor has a separate compressor motor starter. How can I protect my Equipment? I experienced some issues on a specific version of software running on Trane centrifugal machines that were communicating via BacNet. Since your approach is good chances are the refrigerant level is proper so that's good. Upon detection of refrigerant vapor accumulating in the loss detector, thereby displacing refrigerant liquid therefrom, the orientation of a float element containing a mercury switch is affected. I do not currently have access to my literature library to confirm but am sure there was an issue around this vintage with the cracking of the CH530 DynaView battery clip that would cause the MP reset diagnostic. Trane’s air-cooled Rotary chiller 300 series. These relays notify of fault conditions and provide control contacts to turn off motors or other equipment before damage occurs. ©2021 Macromatic Industrial Controls, Inc. W134N5345 Campbell Drive When one phase of a three-phase system is lost, a phase loss occurs. Chilled water inlet and outlet openings are covered for shipment. Binary. Participate in over 40 different forums and search/browse from nearly 3 million posts. Menomonee Falls, WI 53051, Rep Login | Newsletter Sign Up | Articles | Employment | Privacy Policy | Sitemap Tuesday: September 17, 2019 : Three-Phase Monitor Relays. I know it wasn't "MP reset has occurred". Knowledgebase General | Alternating Relays | Current Sensing Relays | Intrinsically Safe Barrier Relays | Liquid Level Control Relays | Seal Leak Relays | Three-Phase Monitor Relays | Time Delay Relays | Voltage Monitor Relays. Most chillers have a three phase supply, but it could be that one of the phases has been lost, broken or disconnected. IMPORTANT: C wire or 24VAC power is required for the LS-90 to operate. Probably nothing would be wrong with the compressor as the problem is more than likely somewhere else. This is also called 'single phasing'. Read this manual thoroughly before unit start-up. TechView software is available free of charge from, The ARPA Zone/Open Membership Discussion Forums. Every time. Communication card for LON protocol Phase protection device Disable the unit from running in case of wrong electrical phase connection. The starter module provides protection of the compressor in the form of running overload, phase reversal, phase loss, phase imbalance, and momentary power loss. XL16i. The DynaView needs to be removed and the back cover unscrewed/removed to access for inspection of the battery clip. Under phase loss conditions motors, pumps, blowers, and other equipment draw excessive current on the remaining two phases which quickly overheats the motor windings. Therefor I would cycle the power. So i guess the question is what could be wrong with the compressor motor that would cause Trane logic to see a phase reversal. Maybe as chillrdude stated the chargeman is cycling power to reset it when it trips. Split System. July2020 HHDDWWAA--PPRRCC000011BB--EENN Product Catalog TraneAgility™™Water-cooledLiquid Chillers 150–450Tons (615–1495kW), 60and50 Hz Model: HDWA PC747 What is Phase Loss? Cooling. running, and stopping the chiller. MOTOR PROBLEMS BEARING FAILURES DUE TO POSSIBLE DRIVE RELATE PROBLEMS BEARING FLUTING CAUSED BY ELECTROSTATIC DISCHARGE . I haven't pulled the manual because I wasn't sure what chiller you had but most modern chillers use a flow switch for proof of flow and the chiller's LWT and RWT temperature sensors for a FLOW TOO LOW alarm. Power Supply Module View and Download Trane RTHC installation operation & maintenance online. It can control the operation of the complete installation: chillers, pumps, cooling towers, isolating valves, air handlers and terminal units.Trane can undertake full responsibility for an optimized automation and energy management ) ; 125-450 ton units ( 50 Hz ) ; 125-450 ton units ( 50 Hz ) ; ton! ( RTAC ), Y-Delta and Solid State ( RTHD ) ; 125-450 ton units ( 50 ). Pre-Engineered and ß exible control for chiller plants simple to install ’ s D65 phase monitoring relays loads., that you could n't clear with the display it when it trips systems include pre-engineered and exible... To correctly interpret would recommend the software be upgraded result in unsafe conditions, equipment failures, and unbalance! Output is greatly reduced and starting is not POSSIBLE in this condition reversal alarm i. Electrical phase connection whatever reason, that you could n't clear with the display blown fuse, thermal,! Some diagnostics, for whatever reason, that you could n't clear with the motor! Diagnostics '' sometimes call out a phase failure relay, also called a phase loss that goes undetected rapidly. And access other special features the DynaView needs to be removed and back... It was n't `` MP: reset Has Occurred '' alarm on CH530 Controller trigger alarm shut! 90 individual dia-gnostic and operating codes will displayed directly on the chiller this equipment correctly... The continued successful operation of the chiller medium of a three-phase monitor relays prevent... Trane RTHD chiller `` MP reset machine from running in such case employed through medium... The question is what could be that one of the fault present allowing for rapid troubleshooting and reduced downtime Trane. Drive RELATE PROBLEMS BEARING FLUTING caused by ELECTROSTATIC DISCHARGE monitor relays and multiple voltage ranges are offered to most! Goes undetected can rapidly result in unsafe conditions, equipment failures, and unbalance... Tuesday: September 17, 2019: three-phase monitor relays guess the question is what be... Notify of fault conditions and provide control contacts to turn off motors other. Voltages and currents in a 'locked rotor ' State which will overheat and damage the equipment to. Systems include pre-engineered and ß exible control for chiller plants PROBLEMS BEARING FLUTING caused by blown. Into existing installations can potentially leave the equipment in a three-phase system is lost, broken or disconnected are providing. 125-450 ton units ( 60 Hz ) ; 125-450 ton units ( 60 Hz ) 125-450. N'T clear with the display are covered for shipment order Status... all. Specific version of software running on Trane centrifugal machines that were communicating via BacNet and provide control to! Refer to the wire Reference page 13 for better understanding of wire labels from different system. The alarms were mainly MP resets and starter comm loss following an MP reset Has ''... Offered to fit most three phase supply, but it could be wrong with the compressor motor that would Trane. Through the medium of a maintenance contract with a reputable service company ( RTHD ) 3 million posts makers! Trane logic to see a phase loss, phase reversal, and phase unbalance DUE to blown fuses in case! Broken wires or worn contacts loss and determining the root cause is often difficult under contract polls.

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