Daikin maintains detailed catalogues that list performance data for water cooled units in various capacities. These files cover electrical requirements and sound levels for each configuration.
Engineers consult them early in project planning to match loads with available models. The process avoids mismatched selections that increase operating costs over time.
Distributors provide the latest versions upon verified requests. Water cooled
chillers achieve high efficiency through shell and tube heat exchangers that transfer heat between refrigerant
Daikin Water Cooled Chiller Catalogue Specifications
The specifications in the Daikin water cooled chiller catalogue PDF detail performance metrics for multiple models suited to commercial cooling demands. These include capacity ranges, efficiency ratings, and component configurations drawn directly from manufacturer data. Access to the full document supports accurate evaluation of units for specific installation needs.
Daikin EWWD Chiller Capacity Metrics Tables
Daikin water cooled chiller models appear in organized tables within the catalogue. These tables display key metrics side by side for quick reference during evaluations. Users compare values across capacities to identify suitable options for specific building demands. The layout supports direct extraction of data for load calculations. Performance values reflect standard AHRI conditions with 7 degrees Celsius leaving chilled water and 30 degrees Celsius entering condenser water, allowing direct comparison of coefficient of performance across the range. Larger models incorporate multiple compressors and refrigerant circuits to improve redundancy and enable staged operation that preserves efficiency when loads drop below 50 percent. Refrigerant charge quantities scale with capacity and must be verified during commissioning to maintain proper superheat and subcooling values. Dimensional data accounts for service clearances required around tube bundles and control panels, which directly affect mechanical room layout and ceiling height planning.
| Model Family | Cooling Capacity (kW) | EER Rating | Refrigerant Type | Dimensions (L x W x H mm) |
|---|---|---|---|---|
| EWWD 100 | 350 | 5.8 | R134a | 3200 x 1200 x 2100 |
| EWWD 200 | 700 | 5.6 | R134a | 3800 x 1400 x 2300 |
| EWWD 300 | 1050 | 5.4 | R134a | 4500 x 1600 x 2500 |
| EWWD 400 | 1400 | 5.2 | R134a | 5200 x 1800 x 2700 |
Efficiency Data Across Capacity Ranges
Daikin water cooled chillers in the higher capacity ranges deliver consistent performance under varying ambient conditions. Analysis of catalogue data shows efficiency drops slightly as tonnage increases due to compressor staging requirements. Lower capacity units maintain tighter control for smaller facilities with fluctuating loads. Selection depends on annual operating hours and local energy rates. Review full performance curves before finalizing any choice. Integrated part load value ratings become particularly important in climates with wide seasonal temperature swings because they weight efficiency at 25, 50, 75, and 100 percent loads according to standardized bin hours. Condenser water temperature reset strategies can improve annual energy use by lowering condensing pressure during cooler weather, though this requires coordinated control with cooling tower fans and variable speed pumps. Refrigerant management systems monitor oil levels and filter differential pressures to prevent efficiency degradation from contamination or charge loss over time.
Authorized Daikin Chiller Catalogue PDF Requests
Authorized Daikin partners handle requests for the water cooled chiller catalogue PDF through standard order forms. Provide project details such as required capacity range and installation location to receive the correct edition. Processing times vary by region but typically complete within several business days. Digital copies arrive via secure transfer after account verification. Keep records of the request for warranty and compliance purposes. Project specifications often include seismic requirements or high-altitude derate factors that appear only in region-specific editions of the document. Requestors should also indicate whether they need electrical single-line diagrams or piping and instrumentation drawings that accompany the performance tables. Verification steps confirm that the recipient has appropriate contractor or engineering credentials before releasing files containing proprietary compressor performance maps.
Water Cooled Chiller Piping Flow Specs
Proper piping layouts and water treatment systems extend the service life of Daikin chillers according to catalogue guidelines. Installers must verify flow rates and pressure drops match published values before commissioning. Site access for heavy equipment requires advance planning with crane operators. Electrical connections follow specified amperage ratings to prevent overloads during startup. These steps reduce downtime after initial operation begins. Minimum and maximum flow velocities through evaporator and condenser tubes are established to maintain turbulent flow for optimal heat transfer while avoiding tube erosion at higher velocities. Water quality parameters such as total dissolved solids, pH range, and hardness limits are specified to prevent scaling that reduces heat exchanger effectiveness and increases compressor lift. Differential pressure sensors across the vessels allow real-time monitoring of fouling factors so that cleaning can be scheduled before efficiency losses exceed 5 percent. Bypass lines and automatic isolation valves protect the chiller during low-load conditions when system flow might otherwise fall below the minimum required for stable refrigerant boiling.
Daikin Catalogue Maintenance Interval Specifications
Routine inspections of heat exchangers and compressors appear in the Daikin catalogue as scheduled tasks. Technicians replace filters and check refrigerant levels at intervals listed in the maintenance section. Log all service activities to track performance trends over multiple seasons. Early detection of issues prevents major repairs that interrupt building cooling. Follow torque specifications during component reassembly to maintain seals. Oil analysis at each service interval reveals wear metals and acidity levels that indicate bearing condition or refrigerant breakdown before vibration or temperature alarms occur. Tube cleaning frequency depends on water quality and operating hours, with eddy current testing recommended every three to five years to detect wall thinning in condenser tubes. Control panel firmware updates address known issues with sensor calibration drift and improve fault diagnostic resolution. All maintenance records must be retained to support extended warranty claims and to demonstrate compliance with local energy code requirements for periodic efficiency verification.
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