The event action table contains both a set of instructions for alarm routing and a stretchy list of referencer objects (the potential receivers). 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. Order Equipment, Parts, Literature and track Order Status ... to all or partial loss of phase. 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. The services of a qualified technician should be employed through the medium of a maintenance contract with a reputable service company. In fact the recomendation is to upgrade to the most current MP software version for all chillers under contract. Since your approach is good chances are the refrigerant level is proper so that's good. This is also called 'single phasing'. I have seen some diagnostics, for whatever reason, that you couldn't clear with the display. Unequaled Reliability «Adaptive Control™», features summary • Ensures safe operation of the chiller. The RTAC series features Trane’s exclusive Adaptive Control ™ logic, which monitors the control variables that govern the operation of the chiller unit. I know it wasn't "MP reset has occurred". Trane Chillers Air-Cooled Chillers. 175-450 ton units (60 Hz); 125-450 ton units (50 Hz). 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. RTHC chiller pdf manual download. Lose any phase. An index into the event action table. - Over/Under voltage. Each compressor has a separate compressor motor starter. Anything below this for 2 minutes will trigger alarm and shut chiller off. 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They monitor simultaneous voltage drops/increases and help to prevent damaged machinery and the injury of personnel. 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. Further, the relay provides clear indication of the fault present allowing for rapid troubleshooting and reduced downtime. 4TTX6024, 036, 048 & 060E. Three-phase monitor relays can be designed into new installations or easily retrofitted into existing installations. Best regards . They do not contain full service procedures necessary for the continued successful operation of this equipment. Post photos, respond to polls and access other special features. This is also called 'single phasing'. These relays notify of fault conditions and provide control contacts to turn off motors or other equipment before damage occurs. - Welded contactors. 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 … As soon as the phase monitor on the chiller detects a phase loss, it shuts down the chiller AND condensers.. Under phase loss conditions motors, pumps, blowers, and other equipment draw excessive current on the remaining two phases which quickly overheats the motor windings. Probably nothing would be wrong with the compressor as the problem is more than likely somewhere else. IMPORTANT: C wire or 24VAC power is required for the LS-90 to operate. Menomonee Falls, WI 53051, Rep Login | Newsletter Sign Up | Articles | Employment | Privacy Policy | Sitemap You're welcome, glad I could help. The starter module provides protection of the compressor in the form of running overload, phase reversal, phase loss, phase imbalance, and momentary power loss. See it. Typically, a phase loss is caused by a blown fuse, thermal overload, broken wire, worn contact or mechanical failure. Trane’s air-cooled Rotary chiller 300 series. I experienced some issues on a specific version of software running on Trane centrifugal machines that were communicating via BacNet. I can't remember what it called them though. So i guess the question is what could be wrong with the compressor motor that would cause Trane logic to see a phase reversal. X39560468-01 2, 3, 4 & 5 Tons Recent Articles for:Three-Phase Monitor Relays. When one phase of a three-phase system is lost, a phase loss occurs. Series R Air-Cooled Helical Rotary Liquid Chillers – RTAC Plus 140 – 350 Ton […] Page 149 Diagnostics Table 80. A phase loss that goes undetected can rapidly result in unsafe conditions, equipment failures, and costly downtime. Other than that if power is not being cycled would recommend the software be upgraded. Gain access to our free AOP (Ask a Professional) Section to get real answers for your questions. I should have the chiller and condensers set now with the phase monitor. July2020 HHDDWWAA--PPRRCC000011BB--EENN Product Catalog TraneAgility™™Water-cooledLiquid Chillers 150–450Tons (615–1495kW), 60and50 Hz Model: HDWA PC747 TechView software is available free of charge from, The ARPA Zone/Open Membership Discussion Forums. - Phase unbalance or reversal. MOTOR PROBLEMS BEARING FAILURES DUE TO POSSIBLE DRIVE RELATE PROBLEMS BEARING FLUTING CAUSED BY ELECTROSTATIC DISCHARGE . The #1 question asked by NEW MEMBERS. A phase loss that goes undetected can rapidly result in unsafe conditions, equipment failures, and costly downtime. Typically, a phase loss is caused by a blown fuse, thermal overload, broken wire, worn contact or mechanical failure. Split System. Tuesday: September 17, 2019 : Three-Phase Monitor Relays. 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. Every time. I have a Phase loss alarm on second compressor and i don`t know who is generating the alarm . Cooling. View and Download Trane RTHC installation operation & maintenance online. Product Data. -Phase loss/Power loss.-Phase unbalance or reversal.-Over/Under voltage.-Welded contactors. Is this chiller on BacNet communication? So those will be ok, no more blown fuses. XL16i. Components – Coils, Heaters, Motors, etc. Communication card for LON protocol Phase protection device Disable the unit from running in case of wrong electrical phase connection. Its just the pumps and air … A phase loss will sometimes call out a phase reversal alarm. The devices provide protection against phase loss, phase reversal, and phase unbalance due to blown fuses, broken wires or worn contacts. This can potentially leave the equipment in a 'locked rotor' state which will overheat and damage the equipment even more rapidly. How can I protect my Equipment? During the troubleshooting, the service crew noticed that the alarm history is full of the alarm "MP: Reset Has Occurred". Chilled water inlet and outlet openings are covered for shipment. Several models are available providing different types of protection and multiple voltage ranges are offered to fit most three phase applications. 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. Most chillers have a three phase supply, but it could be that one of the phases has been lost, broken or disconnected. 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 mounted on Trane RTAD chillers. What is Phase Loss? Eaton’s D65 phase monitoring relays protect loads from voltage fault conditions. If a fault occurs, one of over 90 individual dia-gnostic and operating codes will displayed direct-ly 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 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. 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 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. 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Perform, Built to Last RTAA 300 series chiller access to our free AOP ( Ask a Professional ) to... Wrong electrical phase connection over 40 different forums and search/browse from nearly 3 million.! D65 phase monitoring relays protect loads from voltage fault conditions is what could be one. `` unknown diagnostics '' to turn off motors or other equipment before damage occurs the compressor motor that would Trane!, it shuts down the chiller was n't `` MP: reset trane chiller phase loss alarm Occurred '', is an investment...

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