**Appendix A**

**Table A1.** Properties of walls of the test room.


**Figure A1.** Floor plan of the test room including the AHU.

**Figure A2.** (**a**) COP of the HP and (**b**) EER of the RS upon varying outside air temperature and supply fluid temperature.

**Figure A3.** Experimental air volumetric flow rate and power consumption suggested by the manufacturer as a function of fan velocity for the supply air fan (**a**) and the return air fan (**b**).

#### **References**

1. Wang, H.; Chen, Y. A robust fault detection and diagnosis strategy for multiple faults of VAV air handling units. *Energy Build.* **2016**, *127*, 442–451. [CrossRef]

