Showing 61 - 80 of 446 results:
Problem Set
1. As a technical expert in heat pump technology, you should have a ‘Design Questionnaire’ to go over with the customer. What is the purpose of the ‘Design Questionnaire?’ a. Assess if the building is appropriate for such a system, where to place the system, the size of the system, and an estimate...
Problem Set
1. The installation of a heat pump has both economic and environmental benefits. A heat pump reduces the amount of energy use and therefore energy costs. Also, switching from gas-powered heating to electricity-powered systems will avoid air pollution from burning natural gas.
Problem Set
1. Closing the heat pump installation deal might raise objections regarding which of the following? a. Capital investment cost of the system. b. Worries about the system working in the customer’s climate/location. c. Maintenance cost of the system. d. Aesthetics of the system. e. All of the above.
Problem Set
For the plumbing layout below, assuming all pipes are copper M and 3/4 inches in diameter (0.824 inches for the inner diameter), calculate the theoretical volume of water stored between the water heater and the farthest fixtures, to determine if the system can meet the EPA’s WaterSense® 0.5 gallon...
Problem Set
What is the most common cause of moisture failure in a building? Improper management of bulk water Air movement Evaporation Diffusion
Problem Set
Which type of low-emission coating is characterized by a low solar heat gain coefficient (SHGC), and a low visible transmittance (VT)?
Problem Set
Which of the following professionals need an understanding of building codes but do not apply building codes in their normal job duties? A. electricians B. plumbers C. realtors D. architects
Problem Set
In general terms (i.e., not required to list the specific code and standard), explain for a specific type of natural disaster (e.g. earthquake or flood) how local codes and industry standards could prepare and protect a building from a natural disaster.
Problem Set
Which regions in the United States are those considered to be “cold climate” regions?
Problem Set
What are the minimum HSPF2, SEER2, and COP @ 5 °F needed to qualify an air-source heat pump as a cold climate heat pump, according to NEEP’s cold climate air-source heat pump specification?
Problem Set
Match the terms with the correct definition. Definition Key Term 1) ____ A heat pump HVAC system that uses a building’s ductwork to deliver heating and cooling. a) Coefficient of Performance (COP) 2) ____ A heat pump’s maximum heating capacity when the outdoor temperature is 5 °F. b) Cold Climate...
Problem Set
What approach to sizing single-stage heat pumps has been recommended traditionally? Oversize the cooling capacity and right-size the heating capacity. Undersize the cooling capacity and undersize or oversize the heating capacity. Right-size the cooling capacity, even if it means the heating capacity...
Problem Set
Why are variable-capacity heat pumps more appropriate for cold climates than single-stage heat pumps? Single-stage heat pumps cannot provide heating. Variable-capacity heat pumps can be oversized for cooling, but modulate down to prevent short-cycling and provide effective cooling and...
Problem Set
Which best describes the balance point temperature of a heat pump? The temperature at which the maximum heating capacity matches the heating load of the house The temperature at which the maximum heating load of the house occurs The temperature at which the heat pump begins short-cycling to match...
Problem Set
What approach to sizing a ccASHP should be taken if the heat pump will be the only source of heat for the house? Size to meet most of the design heating load. Size to meet the design cooling load. Size to meet the design heating load. Size for cooling, but maximize available heating capacity. What...
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