By Billy C. Langley
ISBN-10: 0824709217
ISBN-13: 9780824709211
This accomplished, hands-on handbook covers the entire approaches essential to fine-tune HVAC/R platforms for max working potency. Easy-to-follow guidance and worksheets advisor readers via every one step of the method, giving them the instruments they should guarantee that gear can function at top potency as designed by means of the producer. the entire spectrum of platforms and kit are coated, together with electrical heating, gasoline heating, oil burners, air-con structures, warmth pumps, and refrigeration gear. A wealth of priceless diagrams, illustrations, estimating instruments, and worksheets also are supplied. a number of tear-out copies of every worksheet are supplied to be used at the task.
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Additional resources for Fine Tuning Air Conditioning & Refrigeration Systems
Sample text
8. Visually check the entire unit for cleanliness, and ensure all components are in proper working condition. Be sure the flue gas passages and the venting system are clear of all obstructions. Start the oil burner, and allow it to operate for at least 15 minutes. Check the flue gas temperature. For conversion oil burner installations, flue gas temperature should be between 600 ° and 700 °F. For packaged unit installations, flue gas temperature should be between 400 ° and 500 °F. Check the CO 2 content of the flue gases.
This chapter will discuss only those procedures used for efficiency testing refrigeration systems, not specific instruments. The following is a list of the basic test instruments required for testing and adjusting the efficiency of a refrigeration system: 1. 2. 3. 4. 5. Dry bulb thermometer Gauge manifold Voltmeter Ammeter Velometer, anemometer, or flowhood (as desired or available) Dry Bulb Thermometer A dry bulb (db) thermometer is an ordinary thermometer used to measure air temperature (see Figure 2-1).
If the difference is more than 5 °F, the duct needs more insulation. When the heat pump system meets this criteria, the only other alternative is to increase the size of the heat pump unit or increase the heating capacity of the auxiliary heat strips. Be aware that the electric bill will increase with an increase in heat strip capacity . Make sure the ductwork will handle the required airflow. ©2002 by The Fairmont Press. All rights reserved. Heat Pump (Heating Mode) Worksheet Introduction: The service technician is often called upon to perform a capacity check of a heat pump system.
Fine Tuning Air Conditioning & Refrigeration Systems by Billy C. Langley
by Donald
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