Use this checklist to easily inspect pressure and temperature gauges, detect potential chiller failures, and prevent short cycling. I prefer open office since you can save it in an array of different formats including pdf. Product 16tj data hermetic absorption liquid chiller. The unit controller on the chiller will monitor and maintain the supply chilled water temperature within its capacity range. The next component to check is the evaporator, which has the function of taking the heat absorbed from your process or building.
The heat transfers to the water, causing the refrigerant to condense into liquid form. Chiller log sheets pdf fill online, printable, fillable. Ys chiller maintenance requirements chiller log sheet form. A load prediction calculation is incorporated into the plant control to determine when the lag chiller. Service representative for refrigeration log forms see. Yk centrifugal chiller 2503,000 tr 88010,550 kw whether your facility is a clinic, elementary school, high rise, or data center, our york yk centrifugal water chiller fits your unique needs. Please note that information pertains to all three chiller types unless differences exist in which case the sections are broken down by chiller type as applicable and discussed separately. During installation, operation maintenance or service. Procedure daily weekly monthly yearly other record operating conditions on applicable log form x check oil levels x check refrigerant levels x check oil return system operation. Weve engineered this watercooled centrifugal chiller. Chiller logs are routinely taken, but analysis of the data is difficult so problems may not be identified in a timely manner. Chiller system preventive maintenance check list inspectionreplacement items and frequency for technical support please contact pro refrigeration, inc. Carrier corporation 20 form 23xrv7pd carriers aquaedge 23xrv chiller with greenspeed intelligence is the worlds first integrated variable speed, watercooled, screw chiller.
At johnson controls, weve engineered this watercooled centrifugal chiller to deliver the ultimate in realworld performance and offer an exclusive combination of benefits, like lowest total cost of ownership, leading sustainable chiller. The ahri test criteria allows an apples to apples comparison of different chillers. R4a cooling only, with optiview control center, for electromechanical starter, solid state starter and variable speed drive. A maintenance log template would be a great way of keeping a track of all tasks that have to be completed and the people who are in charge of it. The loop supply temperature is controlled at the chiller. Record operating conditions on applicable log form. Log sheets can be made using a program such as microsoft excel or calc from open office. Chillers can account for 35 percent of hvac energy use in many commercial buildings, but todays variable speed drives vsds can cut a chiller s annual energy cost by 30 percent or more. Chiller maintenance checklist air cooled all kote lining. As basic as this may seem, having a daily record of operating conditions, the pressure and temperatures in the chiller unit, as well as the fluid levels and flow rate, could help quickly predict the likelihood of future damage to the chiller machine. The vsd maintains voltage to ground on the motor when the chiller is off while voltage is available to the vsd.
Keeping a chiller log sheet is advantageous as a preemptive chiller maintenance schedule can. Sign, fax and printable from pc, ipad, tablet or mobile with pdffiller instantly. Air cooled chillers use air to remove heat by using fans to force air across the exposed tubes of the condenser. The accuracy to which the chiller can maintain the set point is based on the chiller. The system evaluation manual and chiller evaluation manual. The impeller discharges radially into the volute or diffuser 11, which is built into the pump. New watercooled chillers commonly use one of three types of compressors. The contractor certifies that the chiller maintenance and recommissioning meet standard industry practices and that the chiller s has been calibrated, tested and is leak free. Chillers are one of the largest energy consumers within a building and this has a big impact on operational costs. This usually in volves a service representative to evaluate the load ing, operating conditions log sheets, and mainte nance service records for revealing the. Chillercheck putting the focus on chiller efficiency. The system evaluation manual and chiller evaluation manual have been revised and combined into this new book. The purpose of this manual is to discuss various piping and control strategies.
The only way to do that would be to use a maintenance log. Centrifugal chillers november 99 ctvsvd01aen american standard inc. Because of machine variations it is not possible to prepare an instruction book covering all minor details. This paper describes a case study of the modelbased condenser water temperature setpoint control for a chiller plant with multiple chillers and cooling towers. We confirm that the machine run log has been completed and registered with our factory under our iso 9001quality management system. Failure to properly protect the system from freezing may constitute abuse and may void warranty. Centrifugal liquid chillers operations and maintenance supersedes. Chillerswater and aircooled chiller systems by york. Watercooled chillers are available in a wide range of sizes from 20 tons to several thousand tons of cooling capacity. Chiller operators should document chiller performance daily with an accurate and detailed log, comparing this performance with design. Chiller efficiency how to calculate the engineering mindset. The only way to do that would be to use a maintenance log template.
Equipment, and the application of the equipment and system. While air chillers require more energy than watercooled chillers. It incorporates significant breakthroughs in watercooled chiller. With york chiller solutions from johnson controls, we help you respond to your building efficiency needs by providing the widest variety water and aircooled industrial and commercial chillers on the market. I generally save them in excel format 2007 since most companies are already using the software.
York maxe yk operating and maintenance pdf download. Au to mat ic data logging is possible by checked on the system screen. Keeping a chiller log sheet is advantageous as a preemptive chiller. Consult the job controls manual and the field control drawings for the entire chiller.
Whole turkey, beef roast, pork roast and whole chicken or chicken pieces. Routine maintenance should inspect condenser coils for clogging and free air passage. View and download york yk series operation manuals online. The american embassy in yaounde, cameroon requires preventive maintenance services for the chiller system. Hi all, can any one point to a good chiller log sheet. Air chillers us air to remove heat while water chillers use, you guessed it, water. This instruction book will fulfill common requirements. F temp at 1 hour temp at 2 hours temp at 3 hours temp at 4 hours corrective action initials required items include. The purpose of this manual is to provide design engineers with a basic knowledge of how.
Preventive maintenance contract scope of work for york. Schematics of the systems, numbering the outlets, clearly showing the routing, etc. I have a 400 tone water cooled trane that i need to check daily. Use the unit model number nomenclature to identify specific features and options of an multistack chiller module.
Fifteen model sizes, with a capacity range of 100 to 700 tons, make the 16tj singleeffect absorption chiller the ultimate choice for comfort cooling and or light industrial applications. Heat transfer has a large effect on chiller systems and remains fundamental to producing efficient chiller operation. From this point on, if the building load increases, the two chillers ramp up together as a system, to meet the building demand. A process for logging chillers and evaluating readings.
It simply provides a bin analysis for the load profile and chiller performance entered by the program user. Fundamentals of chiller plant design daikin applied. The unit capacity will vary to the york maxe chiller is designed to use less power maintain the leaving chilled liquid tem per a by taking advantage of lower than design tem per a tures ture setpoint. Chillers take the heat out of the air and also are implemented in industrial settings to cool down equipment. The evaporator in a centrifugal water cooled chiller is usually a shell and tube heat exchanger.
Insulating properties in the motor are reduced in vacuum and may not insulate this voltage. Additional information pertaining to this particular chiller is included in the special job binder provided with the chiller upon delivery. These services shall result in all systems being serviced under this agreement being in good. Centrifugal water chiller motor condenser control panel starter. Depending on the type of chiller, either air cooled or water cooled, these checks will be slightly different. Contractor supplied form approved by the contract administrator via email daily. The impeller 8 is mounted on the pump shaft 5 with roller bearings 7 in either overhung or center hung arrangement. In many plants the assumption is made that if the chiller is running and the building is cool that everything is ok. Therefore its important to monitor your chillers to asses the efficiency of the system and ensure optimal performance.
A chiller system repair and maintenance checklist is used by manufacturing facility chiller operators and maintenance personnel to daily inspect different types of industrial chillers such as centrifugal, screw. A chillers cooling quotient depends on proper refrigerant levels in the. Yk centrifugal chiller operating log sheets and maintenance requirements list form 160. So in this article we will look at how to calculate the efficiency. Record the date, food items and the time and temperature every hour of the cooling cycle. At your place of work, you are expected to work in a organized fashion. During rigging, installation, operation, maintenance, or service, individuals may be exposed to certain com ponents or conditions including, but not limited to. The chiller nameplate is located on the front of the control panel. Chiller maintenance checklist protecting your process. The air conditioning system includes large numbers of similar fan coil units and because no evidence can be provided that these have been adequately cleaned and maintained, then the inspector examine a small. Operation maintenance water cooled centravac with ch530. Lmtd log mean temperature difference between the fluid and the. Please list any observances or operational issues with the system.
Caution compressors and optional hydronic system pumps require specific rotation. Ensure power is removed from the input side of the vsd at all times when the chiller is under vacuum less than atmospheric pressure. Whether your facility is a school, hospital, highrise building, or a data center, our york yk centrifugal water chiller can handle your unique needs. The survey and sampling had been carried out based on tm 44 inspection of air conditioning systems based on tm44. General fire drill log comments 1 lock and key request form. Cooling temperature log seminole county public schools. Cooler or freezer temperature recording form purpose this form is intended to be used to help contracting entities ces monitor cooler and freezer temperatures. Hermetic centrifugal liquid chillers 5060 hz with pic ii controls and hfc4a. Jul 22, 2017 how to calculate the efficiency of a chiller. Although this guide is generally nonproprietary, examples and some descriptions of chiller fundamentals and features use daikin applied nomenclature and model names and numbers. Multistack watercooled modular chillers multistack invented the modular chiller. Determine type of economizer and proper operation both during benchmarking and at the installation of new equipment economizer collect information on the type of economizer installed in each system and document the intended operation in the.
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