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Fitters Notes
Hints and tips for the installer
The Fitters Notes provides relevant information about Danfoss refrigeration controls (mechanical) and Danfoss compressors, a good fault location overview, important installation tips and also extra room for own notes.
It is a useful tool for the installer.
Click on the links below to open the chapters of the book
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Thermostatic expansion valves - Chap. 01 (884 KB)
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Solenoid valves - Chap. 02 (423 KB)
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Pressure controls - Chap. 03 (513 KB)
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Thermostats - Chap. 04 (526 KB)
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Pressure regulators - Chap. 05 (1.7 MB)
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Water valves - Chap. 06 (963 KB)
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Filter driers & sight glasses - Chap. 07 (1.0 MB)
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Danfoss compressors - Chap. 08 (9.9 MB)
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Practical tips - Chap. 09 (2.6 MB)
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Trouble shooting - Chap. 10 (3.1 MB)
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Fitters Notes - Heat Exchangers Chap. 11 (5.9 MB)
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Danfoss condensing units - Chap. 08a (1.7 MB)
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Increase Efficiency - Save Energy
A key factor for energy savings in building services is the use of variable speed drives for compressors, pumps and fans.
There are two decisive factors here: the efficiency of the motor (and the machine) and the energy efficiency of the application control.
Because of their high efficiency, the use of motors with permanent-magnet rotors is increasing. Motors with this technolocy are know as 'EC motors' in the HVAC sector.
To allow the users to benefit from the high motor efficiency of EC technology in all areas, Danfoss has refined its tried and tested VVC+ algorithm - as used in the VLT frequency drives - and optimised it for operating PM motors.