Page 2 - Introduction; Hybrid Chiller Plant
ABS-PRC001-EN © 2003 American Standard Inc. All rights reserved. Introduction Hybrid Chiller Plant A chiller plant design that allows theoperator to choose between multipleenergy sources is referred to as a hybriddesign. Hybrid chiller plants arereceiving increasing attention asvaluable options for ...
Page 3 - Contents; Typical Piping; Trane Horizon; Performance; Easier Installation; Reliability
3 ABS-PRC001-EN Contents Introduction Features and Benefits Component Identification, Typical Single-StageSteam Illustration, Refrigerant Cycle Overview Application Considerations Operating Limits, Sound, Water Flow/Treatment,Combination Systems, Multiple Machines Selection Procedure Computer Select...
Page 4 - General; Technology You Can Trust
ABS-PRC001-EN 4 Features andBenefits General Trane Horizon ® Absorption Series, Single-Stage HotWater- or Steam-FiredAbsorption Water Chillers,500-1350 Tons Technology You Can Trust In the early 1990’s, with the assistance ofthe Gas Research Institute, Trane begandeveloping an innovative series ofab...
Page 5 - Sophisticated Reliability
5 ABS-PRC001-EN Features andBenefits General Sophisticated Reliability Horizon controls meet specifications forstand alone or hybrid chiller control.UCP2 adaptive controls are critical toreliable operation. Trane controls arecompatible with Integrated Comfort ™ Systems (ICS), and are easily integrat...
Page 7 - Refrigeration Cycle
7 ABS-PRC001-EN Figure FB-1. Single-stage absorption refrigeration cycle RefrigerationCycle Features andBenefits (1) Solution 215°F [102 ° C], Vapor 207°F [97°C] (2) Refrigerant 100°F [38°C], Entering/ Leaving Cooling Water94°F/102°F [34°C/39°C] ( 3) Entering/Leaving System Water 54°F/44°F [12°C/7°C...
Page 9 - Part Load Performance
9 ABS-PRC001-EN SelectionProcedure Selection Procedure Absorption refrigeration machines areusually selected to provide the requiredrefrigeration capacity with the smallestpractical machine of sufficient size.Machine size is based on chilled-waterflow rates and temperatures specified forthe air side...
Page 10 - Selection
ABS-PRC001-EN 10 SelectionProcedure Selection Product Coding Description The coding block precisely identifies allcharacteristics of any Horizon ® Single-Stage Steam-Fired or Hot Water Absorption Chiller. Table S-1. Product coding description MODL Absorption Unit Model ABSD Single Stage Absorption N...
Page 17 - Electrical Data
17 ABS-PRC001-EN ElectricalData Electrical Data Factory-wired and-mounted power control includes main power connections. Total kW includes solution and refrigerant pump,motors, purge pump motor and control panel. Units may be supplied for operation on 230,460 or 575 volt, 3-phase, 60-hertzpower, or ...
Page 18 - Wiring
Page 20 - Controls Data; Setting The Standards
ABS-PRC001-EN 20 Controls Data Setting The Standards Trane set the standard for unitmicroprocessor controls in 1985 with thefirst generation of Unit Control Panel.Associated with this standard have been:• Proportional Integral Derivative (PID) control strategies, which provide stableoperation and hi...
Page 22 - Cycle Report; Safeties
ABS-PRC001-EN 22 Cycle Report Refrigerant temperatures and pressures:• Solution temperature leaving generator• Solution temperature entering generator • Generator-leaving concentration• Generator cutout and monitor temperature • Crystallization detection temperature• Crystallization trip temperature...
Page 28 - Separated Machine Sections
ABS-PRC001-EN 28 Separated Machine Sections Disassembled machines can ship to thejob site in two main sections, theevaporator/ absorber as a section andthe low temperature generator/condenser as a separate section. Contactthe local Trane sales office for currentsubmittal information. Figure DW-1. Di...
Page 29 - Rigging; Foundation Support
29 ABS-PRC001-EN Dimensionsand Weights Rigging Foundation Support The foundation must be level, smooth,and capable of supporting the machineweight. The machine legs should bepositioned over isolation pads. Ahousekeeping pad or support rail isrecommended to elevate the machinefor maintenance. Any fou...
Page 31 - Rigging and Service Clearances
31 ABS-PRC001-EN Rigging and Service Clearances Service clearance is required on all sidesof the machine. Pay particular attentionto the control panel door clearance andthe clearance at one end for tube service. Figure DW-4 and Table DW-6 illustratethe recommended clearances for normalservice and tu...
Page 34 - Steam Supply
ABS-PRC001-EN 34 Job SiteConnections Steam Supply andCondensate Piping Steam Supply Figure JC-1 illustrates a typical steam-supply piping illustration that includesthe appropriate hardware. The steam supply piping should bedesigned in accordance with gooddesign practice, providing strainers,unions a...
Page 38 - Cooling Water Piping
ABS-PRC001-EN 38 Job SiteConnections CoolingWater Piping Figure JC-5. Cooling-water piping with cooling tower Figure JC-6. Cooling-water piping, three-way mixing valve Cooling Water Piping The cooling water piping design for theHorizon series of absorption chillersdiffers from conventional reciproca...
Page 40 - System Features and Functions
ABS-PRC001-EN 40 MechanicalSpecifications General The unit is a complete, single-effectsteam- or hot-water-fired absorptionchiller package, built in an ISO 9001environment. The chiller consists ofgenerator/condenser section,evaporator/absorber section, controls,pumps, heat exchanger, and energycontr...
Page 41 - Contractor Responsibilities
41 ABS-PRC001-EN MechanicalSpecifications Adaptive Limits • Evaporator-water temperature limit• Low absorber/condenser limit• Soft-loading control System Protection • Evaporator freeze protection• Chilled-water flow confirmation• Cooling-water flow confirmation• Emergency stop/shutdown• Under/over v...