Daikin Chillers
Daikin offers a comprehensive range of air-cooled and water-cooled chillers featuring innovative compressor technology, advanced controls, and industry-leading efficiency for diverse commercial applications.
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Common Issues & Solutions
Motor cooling issues in magnetic bearing units
Symptoms:
High motor temperature alarms, capacity limitations, emergency shutdowns
Solution:
Check refrigerant charge level, verify proper flow through motor cooling circuit, inspect filters/strainers for blockages, ensure heat exchanger surfaces are clean, validate temperature sensor readings.
Controller communication failures
Symptoms:
Loss of remote access, error codes, inability to integrate with BAS, control limitations
Solution:
Verify network settings and addressing, check physical connections and wiring integrity, validate communication protocol configuration, update controller firmware, replace communication module if necessary.
Economizer operation problems
Symptoms:
Reduced efficiency, high discharge temperatures, improper refrigerant distribution
Solution:
Inspect economizer port for blockages, check economizer expansion device operation, verify solenoid valve function, ensure proper superheat at economizer port, clean strainers if present.
Cost Information
| Service | Average Cost | Cost Factors |
|---|---|---|
| Annual maintenance contract | $3,000-$8,000 | Unit size, service frequency, refrigerant type, geographic location |
| Compressor replacement | $15,000-$45,000 | Compressor type and size, refrigerant type, labor requirements, crane access |
| New Daikin chiller installation | $50,000-$500,000+ | Unit size, refrigerant type, controls package, installation complexity |
| Control system upgrade | $8,000-$25,000 | Controller type, integration requirements, programming needs, monitoring features |
Frequently Asked Questions
What makes Daikin's Magnitude magnetic bearing chillers different?
Daikin's Magnitude chillers use oil-free magnetic levitation technology that eliminates mechanical friction, oil management systems, and traditional maintenance. Benefits include up to 40% energy savings, precise capacity control from 10-100%, quieter operation, reduced maintenance costs, and rapid restart capability after power interruptions.
How do Daikin chillers integrate with building automation systems?
Daikin chillers feature the MicroTech III controller that offers native BACnet, LonWorks, and Modbus connectivity options. They can integrate with Daikin's Intelligent Equipment platform for cloud-based monitoring and optimization, and support Open Choices integration with most major BAS providers for comprehensive system management.
What refrigerant options are available in Daikin chillers?
Daikin offers multiple refrigerant options including R-134a (traditional), R-513A (lower GWP alternative), R-1233zd(E) (ultra-low GWP for centrifugal units), R-32 (for scroll units), and can provide guidance on refrigerant transition strategies as environmental regulations evolve.
What heat recovery options are available with Daikin chillers?
Daikin offers several heat recovery options including partial heat recovery (desuperheaters) that capture superheat energy, full heat recovery for simultaneous cooling and heating, dedicated heat recovery chillers, and their HPS (Heat Pump System) that can produce hot water up to 140°F while providing chilled water for cooling.
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