1. Which of the following are typical benefits of a distributed water-source heat pump system? (select all that apply)

a) Limited mechanical room space is required
b) Maintenance activities are confined to centralized mechanical rooms
c) Individual heat pumps can be added as portions of the building are finished for occupancy
d) Opportunity to apply as a ground-source system

2. True or False: A water-source heat pump system benefits from heat recovery because heat rejected to the water loop by those heat pumps operated in the cooling mode can be extracted from the same water loop by those heat pumps operating in the heating mode.

True
False

3. True or False: A Digital scroll compressor unloads by periodically separating the two scrolls, while the motor continues to operate.

True
False

4. True or False: A variable-speed compressor unloads by reducing the rotational speed of the motor.

True
False

5. True or False: A water-source heat pump that uses a variable-speed fan and variable-speed compressor benefits from improved dehumidification performance at part-load operating conditions.

True
False

6. Which of the following are benefits of delivering conditioned outdoor air directly to each zone, rather than to the intake of each heat pump? (select all that apply)

a) Easier to ensure that the required outdoor airflow reaches each zone
b) Allows the dedicated OA system to operate during unoccupied periods without needing to operate the local heat pump fans
c) Provides the opportunity to cycle off (or vary the speed of) the local heat pump fan because outdoor air is not distributed through it

7. True or False: Allowing the dedicated outdoor-air system to deliver the conditioned OA at a cold temperature (rather than reheated to neutral) often provides the opportunity to downsize the local heat pumps since they do not need to provide as much cooling capacity.

True
False

8. True or False: One of the concerns about delivering the conditioned OA at a “neutral” temperature (close to the desired space temperature) is an increased risk of overcooling the zone.

True
False

9. True or False: ASHRAE Standard 90.1-2010 requires each water-source heat pump to be equipped with an automatic valve to shut off water flow when the compressor is off.

True
False

10. True or False: ASHRAE Standard 90.1-2010 requires an airside economizer be designed into every water-source heat pump system.

True
False

11. True or False: A ground-source heat pump system reduces overall system energy because it reduces the energy required to reject heat from (and add heat to) the water distribution loop.

True
False

Listed courses are approved by United States Green Building Council (USGBC) for LEED credentialing maintenance and American Institute of Architects (AIA) for health, safety and welfare (HSW).

These courses may also qualify for state-licensed professional continuing education. Please check with your local state board.