What effects does water have when introduced in a system with refrigerant?
What will be an ideal response?
Oxidation, freeze up, and acid formation. Water will break down halogenated refrigerants in the presence of extreme heat to form hydrochloric and hydrofluoric acids.
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Most analog addressable systems operate on a _____.
a. one-conductor circuit b. two-conductor circuit c. three-conductor circuit d. four-conductor circuit
How is an oil furnace heat exchanger shaped?
What will be an ideal response?
Most houses have vents that open and close manually without any central control. Cities across the United States recommend the use of such vents in an effort to save energy. In most cases, household occupants do not use the entire house at the same time; the tendency is to use certain rooms for long periods of time. For example, the living room and dining room may be used heavily, while the kitchen is used at certain hours of the day. To cool or heat a room, the vent system must work to cool or heat the entire house. A house can save energy if the vents of unused rooms are closed; this will push the hot or cold air to where it is needed most and will reduce the load on the conditioning system. Develop an objective tree to clarify the need statement, and prioritize the objectives
laid out in the problem statement. You may add features that are not listed clearly in the problem statement but will give an additional advantage to the proposed design. What will be an ideal response?
A fold line is place in the middle of two adjacent views.
Answer the following statement true (T) or false (F)