ASHRAE-90.1-2022- - Page 392
Extracted Content
Table L4.3.2-3 TSPR Reference Building Design HVAC Simple Systems 2
| Building Type Parameter | Hotel (warm) a | Hotel (cold) b | Multifamily (warm) a | Multifamily (cold) b |
|---|---|---|---|---|
| System type | PTHP | PTAC | PTHP | PTAC |
| Fan control | Constant volume | Constant volume | Constant volume | Constant volume |
| Main fan power, W/cfm | 0.300 | 0.300 | 0.300 | 0.300 |
| Heat/cool sizing factor | 1.25/1.15 | 1.25/1.15 | 1.25/1.15 | 1.25/1.15 |
| Supplemental heating availability | <40°F | NA | <40°F | NA |
| Outdoor air economizer | No | No | No | No |
| Occupied_outdoor air_ source | Packaged unit, occupied damper | Packaged unit, occupied damper | Packaged unit, occupied damper | Packaged unit, occupied damper |
| Energy recovery ventilator | No | No | No | No |
| Demand control ventilation | No | No | No | No |
| Cooling source | DX, single stage (heat pump) | DX, single stage | DX, single stage (heat pump) | DX, single stage |
| Cooling_COP_ (net of fan) | 3.10 | 3.20 | 3.10 | 3.20 |
| Heating source | PTHP | 2 hydronic_boilers_ | PTHP | 2 hydronic_boilers_ |
| Heating_COP_ (net of fan)/furnace or_boiler_ efficiency | 3.10 | 75%Et | 3.10 | 75%Et |
| Heating_pump_ power, W/gpm | NA | 19 | NA | 19 |
| Heating-coil HW temperature difference,F | NA | 50 | NA | 50 |
| Design HWST,F | NA | 180 | NA | 180 |
| HWST reset_set point_ vs. OAT,F | NA | HWST/OAT: 180–150/20–50 | NA | HWST/OAT: 180–150/20–50 |
| HW-loop pumping control | NA | Two-way valves and ride_pump_ curve | NA | Two-way valves and ride_pump_ curve |
a. “Warm” refers to Climate Zones 0 through 2 and 3A. b. “Cold” refers to Climate Zones 3B, 3C, and 4 through 8. Informative Note: See Section 3.3 for a full list of terms used in this table.