MOTOR PROBLEMS BEARING FAILURES DUE TO POSSIBLE DRIVE RELATE PROBLEMS BEARING FLUTING CAUSED BY ELECTROSTATIC DISCHARGE . Lose any phase. TechView software is available free of charge from, The ARPA Zone/Open Membership Discussion Forums. IMPORTANT: C wire or 24VAC power is required for the LS-90 to operate. • Keeps chiller … The devices provide protection against phase loss, phase reversal, and phase unbalance due to blown fuses, broken wires or worn contacts. running, and stopping the chiller. Starter types include Across the Line (RTAC), Y-Delta and Solid State (RTHD). Gain access to our free AOP (Ask a Professional) Section to get real answers for your questions. A phase loss that goes undetected can rapidly result in unsafe conditions, equipment failures, and costly downtime. During the troubleshooting, the service crew noticed that the alarm history is full of the alarm "MP: Reset Has Occurred". X39560468-01 Since your approach is good chances are the refrigerant level is proper so that's good. provides a 120 signal whenever the chiller is running. Maybe as chillrdude stated the chargeman is cycling power to reset it when it trips. If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life. Probably nothing would be wrong with the compressor as the problem is more than likely somewhere else. Learn more about Macromatic's Three-Phase Monitor Relays to prevent damage to your critical motors and equipment. Its just the pumps and air … I have a Phase loss alarm on second compressor and i don`t know who is generating the alarm . Is this chiller on BacNet communication? … Page 149 Diagnostics Table 80. Ask Our Pros-Owner Assistance - NO DIY advice will be given. • Alarm - Latching (standard) • Alarm Auto reset • Alarm • Warning • Unit Limit Mode (standard) • Compressor Running (standard) • Maximum Capacity reached (standard) • Circuit fault. 2 Features and Benefits Designed to Perform, Built to Last RTAA 300 series chiller. Every time. The RTAC series features Trane’s exclusive Adaptive Control ™ logic, which monitors the control variables that govern the operation of the chiller unit. This is also called 'single phasing'. When one phase of a three-phase system is lost, a phase loss occurs. Each compressor has a separate compressor motor starter. Trane Chillers Air-Cooled Chillers. Meanwhile, damage and downtime of the equipment continues to rise. Product Data. 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. Trane Tracer Summit TM building automation systems include pre-engineered and ß exible control for chiller plants. View and Download Trane RTHC installation operation & maintenance online. As soon as the phase monitor on the chiller detects a phase loss, it shuts down the chiller AND condensers.. You're welcome, glad I could help. Hello guys . Often measurements yield confusing values that require a great deal of complex analysis to correctly interpret. The services of a qualified technician should be employed through the medium of a maintenance contract with a reputable service company. Some Trane chillers do not have oil pumps and are driven by a pressure difference between the evap and cond of 280Pa. Our 20th year anniversary is May 21, 2020. I have seen some diagnostics, for whatever reason, that you couldn't clear with the display. The #1 question asked by NEW MEMBERS. 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 Power output is greatly reduced and starting is not possible in this condition. When one phase of a three-phase system is lost, a phase loss occurs. The chiller controls should prevent the machine from running in such case. Trane’s air-cooled Rotary chiller 300 series. Trane TR150 Variable Frequency Drive Guide Specification Section 15172 I. «Adaptive Control™», features summary • Ensures safe operation of the chiller. 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. An index into the event action table. Voltages and currents in a three-phase system do not typically just drop to zero when a phase is lost. Menomonee Falls, WI 53051, Rep Login | Newsletter Sign Up | Articles | Employment | Privacy Policy | Sitemap I experienced some issues on a specific version of software running on Trane centrifugal machines that were communicating via BacNet. INITIAL START-UP… 1. RTHC chiller pdf manual download. 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 should have the chiller and condensers set now with the phase monitor. • Keeps chiller … Split System. In fact the recomendation is to upgrade to the most current MP software version for all chillers under contract. Participate in over 40 different forums and search/browse from nearly 3 million posts. They do not contain full service procedures necessary for the continued successful operation of this equipment. A three-phase monitor relay, also called a phase failure relay, is an economical investment that is simple to install. See it. Order Equipment, Parts, Literature and track Order Status ... to all or partial loss of phase. mounted on Trane RTAD chillers. Three-phase motors and other equipment are commonly used in a variety of industries: Macromatic offers the only phase monitor product of its kind that retains fault indication and continues to monitor all voltages even with a phase loss present. Most chillers have a three phase supply, but it could be that one of the phases has been lost, broken or disconnected. 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) ©2021 Macromatic Industrial Controls, Inc. W134N5345 Campbell Drive 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 … A phase loss will sometimes call out a phase reversal alarm. Communication card for LON protocol Phase protection device Disable the unit from running in case of wrong electrical phase connection. TRANE RTHD Chiller "MP: Reset Has Occurred" Alarm on CH530 Controller. Control System for Chillers RTWD/RTUD 060-250 User Guide RLC-SVU05A-E4. Several models are available providing different types of protection and multiple voltage ranges are offered to fit most three phase applications. This can potentially leave the equipment in a 'locked rotor' state which will overheat and damage the equipment even more rapidly. Check the resistance of current transformer (CT) … 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. - Phase loss/Power loss. The event action table contains both a set of instructions for alarm routing and a stretchy list of referencer objects (the potential receivers). 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. Binary. Also for: R series. Components – Coils, Heaters, Motors, etc. Typically, a phase loss is caused by a blown fuse, thermal overload, broken wire, worn contact or mechanical failure. This is also called 'single phasing'. 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. Anything below this for 2 minutes will trigger alarm and shut chiller off. -Phase loss/Power loss.-Phase unbalance or reversal.-Over/Under voltage.-Welded contactors. Other than that if power is not being cycled would recommend the software be upgraded. 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. The DynaView needs to be removed and the back cover unscrewed/removed to access for inspection of the battery clip. 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. - Phase unbalance or reversal. Alarm Output. Tuesday: September 17, 2019 : Three-Phase Monitor Relays. Post photos, respond to polls and access other special features. I can't remember what it called them though. Read this manual thoroughly before unit start-up. A phase loss that goes undetected can rapidly result in unsafe conditions, equipment failures, and costly downtime. They monitor simultaneous voltage drops/increases and help to prevent damaged machinery and the injury of personnel. If I recall correctly, some early software did have some "unknown diagnostics". Quickly troubleshooting a phase loss and determining the root cause is often difficult. 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 I have a problem with above Trane chiller and i need some wiring documentation . If a fault occurs, one of over 90 individual dia-gnostic and operating codes will displayed direct-ly on the control module. Best regards . Unequaled Reliability July2020 HHDDWWAA--PPRRCC000011BB--EENN Product Catalog TraneAgility™™Water-cooledLiquid Chillers 150–450Tons (615–1495kW), 60and50 Hz Model: HDWA PC747 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. What is Phase Loss? «Adaptive Control™», features summary • Ensures safe operation of the chiller. 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. If a fault occurs, one of over 90 indi-vidual diagnostic and operating codes will displayed directly on the control module. Under phase loss conditions motors, pumps, blowers, and other equipment draw excessive current on the remaining two phases which quickly overheats the motor windings. — Do NOT store or use gasoline or other flammable vapors and liquids or combustible materials in the vicinity of this or any other appliance. The starter module provides protection of the compressor in the form of running overload, phase reversal, phase loss, phase imbalance, and momentary power loss. Chilled water inlet and outlet openings are covered for shipment. So i guess the question is what could be wrong with the compressor motor that would cause Trane logic to see a phase reversal. Refer to the Wire Reference page 13 for better understanding of wire labels from different HVAC system makers. A three-phase monitor relay protects against damage caused by phase loss as well as other three-phase fault conditions. The key to happiness is lower expectations. These relays notify of fault conditions and provide control contacts to turn off motors or other equipment before damage occurs. 2, 3, 4 & 5 Tons The starter module provides protection of the compressor in the form of running overload, phase reversal, phase loss, phase imbalance, and momentary power loss. I know it wasn't "MP reset has occurred". 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. Cooling. 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 Series R Air-Cooled Helical Rotary Liquid Chillers – RTAC Plus 140 – 350 Ton […] 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. Therefor I would cycle the power. 175-450 ton units (60 Hz); 125-450 ton units (50 Hz). Alarm Event Class [1–3] Numeric. - Over/Under voltage. Yes... we are 20 years old. XL16i. So those will be ok, no more blown fuses. The alarms were mainly MP resets and starter comm loss following an MP reset. How can I protect my Equipment? Further, the relay provides clear indication of the fault present allowing for rapid troubleshooting and reduced downtime. 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. Recent Articles for:Three-Phase Monitor Relays. 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. 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 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. Three-phase monitor relays can be designed into new installations or easily retrofitted into existing installations. Eaton’s D65 phase monitoring relays protect loads from voltage fault conditions. - Welded contactors. 4TTX6024, 036, 048 & 060E. It could also be that there has been a ground fault in the motor and the chiller … Power Supply Module 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. Due to blown fuses, broken or disconnected to our free AOP ( Ask a ). Chillers have a problem with above Trane chiller and condensers some wiring documentation lost... Analysis to correctly interpret include Across the Line ( RTAC ), Y-Delta and Solid (! Frequency DRIVE Guide Specification Section 15172 i greatly reduced and starting is not cycled! 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Loss and determining the root cause is often difficult POSSIBLE DRIVE RELATE PROBLEMS BEARING caused.

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