Download Analyzing field measurements: air conditioning & heating by Robert S. Curl PDF

By Robert S. Curl

This handbook is meant to aid engineers and technicians with a historical past of use of temperature, strain, humidity, ventilation, and flue gasoline tools, to interpret their readings of box measurements. This decision will point out the deficiencies of the method established and techniques of correction. development of operation almost always ends up in aid of application expenditures. easy screens and directions will allow non-technical group of workers to function gear successfully at minimal power charges. In a number of development installations, this kind of keep an eye on may possibly store up to seventy five% of upkeep time since you can examine the of the procedure with the pc earlier than you ship out the upkeep guy to make alterations. additionally, you will be capable of predetermine the precise challenge in order that an identical upkeep guy should not have to spend time checking a couple of goods until eventually he pinpoints the trouble. the data during this publication will help development vendors, upkeep group of workers, contractors, and technicians in opting for the operation of energy-using structures and techniques of lowering power intake.

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Living and Sleeping: Sleeping rooms should by individually controlled but, if not practical, should be at least zoned in accordance with solar exposure or direction. This is also true of wind exposure which has considerable effect, primarily in the wintertime. Instructions should be made to occupants that if they desire to open windows that the heating or cooling system should be shut off during that period so that energy is not wasted due to the effect of outside air. Living rooms should be separately controlled and placed on time clocks to reduce the cooling or heating requirements either by cycling equipment or by changing the temperature during periods of low or non-occupancy.

B. Ceiling outlets. 1. If the outlet is non adjustable and is near a wall, remove and close the outside supply suction near wall, with tape, on the air entering side. 2. If the outlet is on a high ceiling and air doesn't get to the floor, remove the center section of outlet or provide a 1/2" angle around the outside top edge. 3. Inspect linear outlets for damper position. Some provide directional air flow. c. Return air outlets. 1. Measure air quantity at return air grilles and at A/C unit to determine if return duct leaks air.

5. Thermostat location. a. Is thermostat located where it measures the average room temperature? b. Is there any heat producing source near thermostat? c. Does sun shine on thermostat? d. Is thermostat set by one person or do many people keep readjusting it on request or whim? Is there a locking cover on thermostat? 6. Heating. a. Hot water systems operate similar to chilled water with two position or three way valves. Water temperature should be kept as low as possible to prevent over- heating, especially on reheat systems.

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