CFR > Title 10 - Energy > CHAPTER II—DEPARTMENT OF ENERGY > SUBCHAPTER D—ENERGY CONSERVATION (parts 400 to 491) > PART 434—ENERGY CODE FOR NEW FEDERAL COMMERCIAL AND MULTI-FAMILY HIGH RISE RESIDENTIAL BUILDINGS > SUBPART E—Building Energy Cost Compliance Alternative (§434.501 to §434.521) > 434.512—Internal loads.

434.512—Internal loads.

512.1The systems and types of energy specified in this section are provided only for purposes of calculating the Energy Cost Budget. They are not requirements for either systems or the type of energy to be used in the Proposed Design or for calculation of Design Energy Cost.
512.2Internal loads for multi-family high-rise residential buildings are prescribed in Tables 512.2.a and b, Multi-Family High Rise Residential Building Schedules. Internal loads for other building types shall be modeled as noted in this subsection.
Table 512.2.a—Multi-Family High Rise Residential Buildings Schedules—One-Zone Dwelling Unit
[Internal loads per dwelling unit Btu/h]
Hour Occupants Lights Equipment
Sensible Latent Sensible Sensible Latent
1 300 260 0 750 110
2 300 260 0 750 110
3 300 260 0 750 110
4 300 260 0 750 110
5 300 260 0 750 110
6 300 260 0 750 110
7 300 260 0 750 110
8 210 260 980 1250 190
9 100 80 840 2600 420
10 100 80 0 1170 180
11 100 80 0 1270 190
12 100 80 0 2210 330
13 100 80 0 2210 330
14 100 80 0 1270 190
15 100 80 0 1270 190
16 100 80 0 1270 190
17 100 80 0 1270 190
18 300 260 0 3040 450
19 300 260 0 3360 500
20 300 260 960 1490 220
21 300 260 960 1490 220
22 300 260 960 1490 220
23 300 260 960 1060 160
24 300 260 960 1060 160
Table 512.2.b—Multi-Family High Rise Residential Building Schedules-Two-Zone Dwelling Unit
[Internal loads per dwelling unit Btu/h]
Hour Bedrooms & bathrooms Occupants Sensible Latent Lights Sensible Equipment Sensible Latent Other rooms Occupants Sensible Latent Lights Sensible Equipment Sensible Latent
1 300 260 0 750 110
2 300 260 0 750 110
3 300 260 0 750 110
4 300 260 0 750 110
5 300 260 0 750 110
Code of Federal Regulations 590
6 300 260 0 750 110
7 300 260 0 750 110
8 210 260 980 1250 190
9 100 80 840 2600 420
10 100 80 0 1170 180
11 100 80 0 1270 190
12 100 80 0 2210 330
13 100 80 0 2210 330
14 100 80 0 1270 190
15 100 80 0 1270 190
16 100 80 0 1270 190
17 100 80 0 1270 190
18 300 260 0 3040 450
19 300 260 0 3360 500
20 300 260 960 1490 220
21 300 260 960 1490 220
22 300 260 960 1490 220
23 300 260 960 1060 160
24 300 260 960 1060 160
Table 512.2.b—Multi-Family High Rise Residential Building Schedules-Two-Zone Dwelling Unit
[Internal loads per dwelling unit Btu/h]
Hour Bedrooms & bathrooms Occupants Sensible Latent Lights Sensible Equipment Sensible Latent Other rooms Occupants Sensible Latent Lights Sensible Equipment Sensible Latent
1 300 260 0 100 20 0 0 0 650 90
2 300 260 0 100 20 0 0 0 650 90
3 300 260 0 100 20 0 0 0 650 90
4 300 260 0 100 20 0 0 0 650 90
5 300 260 0 100 20 0 0 0 650 90
6 300 260 0 100 20 0 0 0 650 90
7 200 180 680 200 40 100 80 300 1050 150
8 110 120 240 200 40 100 80 600 2400 380
9 0 0 0 100 20 100 80 0 1070 160
0 0 0 0 100 20 100 80 0 1170 170
0 0 0 0 100 20 100 80 0 1170 170
0 0 0 0 100 20 100 80 0 2110 310
0 0 0 0 100 20 100 80 0 2110 310
14 0 0 0 100 20 100 80 0 1170 170
15 0 0 0 100 20 100 80 0 1170 170
16 0 0 0 100 20 100 80 0 1170 170
17 0 0 0 100 20 100 80 0 1170 170
18 0 0 0 100 20 300 260 0 2940 430
19 0 0 0 100 20 300 260 0 3260 480
20 100 80 320 300 60 200 180 640 1190 160
21 100 80 320 300 60 200 180 640 1190 160
22 150 130 480 700 90 150 130 480 790 130
23 300 260 640 410 70 0 0 320 650 90
24 300 260 640 410 70 0 0 320 650 90