The conditioned space includes all of the building. The heating load includes ventilation and totals 43.2 MBH, 11 BTUh per square foot
utilizing Augusta weather data with its heating design temperature of -3° F.
The indoor unit outputs are derated to account for refrigerant line lengths as per Diamond System Builder
and the difference between rated output at 5° F and the outside design temperature.
The building is divided into eight zones served by two multizone heat pump systems.
The projected building energy consumption was estimated using BeOpt; results are below.
| Zone ID | Zone Description | Zone Area (SF) | Cooling Load (BTUh) | Heating Load (BTUh) | Indoor Unit Model MSZ | Heating Output at -3° F | Notes |
|---|---|---|---|---|---|---|---|
| A | Upper Level Storage, Stairwell | 815 | 3,700 | 6,800 | GL09 | 7,100 | inside design: 65° F |
| B | Lower Level Living Room, Kitchen | 255 | 3,300 | 3,600 | GL06 | 4,500 | |
| C | Lower Level Bedroom, Bath | 255 | 1,900 | 1,800 | GL06 | 4,500 | |
| D | Basement | 705 | 600 | 8,500 | GL06 | 4,500 | inside design 65° F. Heating load does not include the heat extraction of heat pump hot water heaters. |
| E | Garage, Garage Bath | 1,040 | 3,800 | 14,000 | GL12 | 13,600 | inside design: 65° F. |
| 3,070 | 13,300 | 34,800 | 33,900 |
| Zone ID | Zone Description | Zone Area (SF) | Cooling Load (BTUh) | Heating Load (BTUh) | Indoor Unit Model MSZ | Heating Output at -3° F | Notes |
|---|---|---|---|---|---|---|---|
| A | Upper Level Living Room, Kitchen | 345 | 2,600 | 3,100 | GL06 | 5,800 | |
| B | Upper Level Master BR, Bath | 365 | 5,100 | 4,300 | GL06 | 5,800 | |
| C | Upper Level Bedroom 2 | 145 | 1,900 | 1,000 | GL06 | 5,800 | |
| 855 | 8,800 | 8,400 | 17,400 |
| Zone ID | Zone Description | Zone Area (SF) | Cooling Load (BTUh) | Heating Load (BTUh) | Indoor Unit Model MSZ | Heating Output at -3° F | Notes |
|---|---|---|---|---|---|---|---|
| All Zones | 3,925 | 22,100 | 43,200 | 51,400 |
