Attachment-6_Load_Calculations_LittleRock.PDF

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Computer Room Air Conditioning Replacement
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NWWP4000-19-00074JM0B
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Attachment-6_Load Calculations

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Page 1 9/22/2018Residential Heat Loss and Heat Gain Calculation In accordance with ACCA Manual J

Report Prepared By:

Haynes Home Improvement

For: WFO Little Rock EQ Room

Little Rock, AR

Design Conditions: Little Rock Indoor: Outdoor:

Summer temperature: 65 Summer temperature: 96 Winter temperature: 65 Winter temperature: 20 Relative humidity: 55 Summer grains of moisture: 111

Daily temperature range: High

Building Component Sensible Latent Total Total Gain Gain Heat Gain Heat Loss

(BTUH) (BTUH) (BTUH) (BTUH)

Whole House 875 sq.ft. 94,814 1,981 96,795 24,977

( 8 tons ) First Floor 94,815 1,981 96,796 24,978

114 equipment room 655 sq.ft. 72,766 1,549 74,315 21,589 Infiltration 700 1,549 2,249 2,032

- Tightness: Best; Winter ACH: .4 ; Summer ACH: .2 Miscellaneous 54,000 0 54,000 0 Miscellaneous (2) 4,368 0 4,368 0 Floor 655 sq.ft. 0 0 0 37

- Concrete slab on grade; Concrete; 1 in. edge R - 5 E Wall 219 sq.ft. 389 0 389 591

- Wood frame, with sheathing, siding or brick; R-19 5 1/2 in.; none

Window 15 sq.ft. 353 0 353 321

- Double pane; Metal frame; Low emittance

- No inside shading; Coating: Tinted (heat absorbing); 55% shaded.

Window (2) 15 sq.ft. 353 0 353 321

- Double pane; Metal frame; Low emittance

- No inside shading; Coating: Tinted (heat absorbing); 55% shaded.

Window (3) 15 sq.ft. 353 0 353 321

- Double pane; Metal frame; Low emittance

- No inside shading; Coating: Tinted (heat absorbing); 55% shaded.

Page 2 WFO Little Rock EQ Room 9/22/2018

Building Component Sensible Latent Total Total Gain Gain Heat Gain Heat Loss

(BTUH) (BTUH) (BTUH) (BTUH)

S Wall 171 sq.ft. 304 0 304 462

- Wood frame, with sheathing, siding or brick; R-19 5 1/2 in.; none

Window 15 sq.ft. 245 0 245 321

- Double pane; Metal frame; Low emittance

- No inside shading; Coating: Tinted (heat absorbing); 55% shaded.

Window (2) 15 sq.ft. 245 0 245 321

- Double pane; Metal frame; Low emittance

- No inside shading; Coating: Tinted (heat absorbing); 55% shaded.

W Wall 3,150 sq.ft. 2,797 0 2,797 4,252

- Wood frame, with sheathing, siding or brick; R-33 9 - 10 in.; Not important

Door 18 sq.ft. 250 0 250 381

- Metal; Polystyrene; No storm

N Wall 3,762 sq.ft. 6,681 0 6,681 10,157

- Wood frame, with sheathing, siding or brick; R-19 5 1/2 in.; none

Door 18 sq.ft. 245 0 245 373

- Wood; Solid; No storm Door (2) 18 sq.ft. 245 0 245 373

- Wood; Solid; No storm

Ceiling 655 sq.ft. 1,238 0 1,238 1,326

- Roof-Ceiling combination; R-22 batts (2 X 8 rafters); Light

116 electric room 96 sq.ft. 14,133 216 14,349 1,654 Infiltration 98 216 314 284

- Tightness: Best; Winter ACH: .4 ; Summer ACH: .2 Miscellaneous 12,000 0 12,000 0 Miscellaneous (2) 1,092 0 1,092 0 Floor 96 sq.ft. 0 0 0 18

- Concrete slab on grade; Concrete; 1 in. edge R - 5 N Wall 72 sq.ft. 128 0 128 194

- Wood frame, with sheathing, siding or brick; R-19 5 1/2 in.; none W Wall 90 sq.ft. 160 0 160 243

- Wood frame, with sheathing, siding or brick; R-19 5 1/2 in.; none

Door 18 sq.ft. 314 0 314 478

- Metal; Fiberglass; No storm

S Wall 72 sq.ft. 64 0 64 97

- Wood frame, with sheathing, siding or brick; R-33 9 - 10 in.; Not important E Wall 108 sq.ft. 96 0 96 146

- Wood frame, with sheathing, siding or brick; R-33 9 - 10 in.; Not important

Page 3 WFO Little Rock EQ Room 9/22/2018

Building Component Sensible Latent Total Total Gain Gain Heat Gain Heat Loss

(BTUH) (BTUH) (BTUH) (BTUH)

Ceiling 96 sq.ft. 181 0 181 194

- Roof-Ceiling combination; R-22 batts (2 X 8 rafters); Light

117 cooms room 124 sq.ft. 7,916 216 8,132 1,735 Infiltration 98 216 314 284

- Tightness: Best; Winter ACH: .4 ; Summer ACH: .2 Miscellaneous 6,000 0 6,000 0 Miscellaneous (2) 819 0 819 0 Floor 124 sq.ft. 0 0 0 37

- Concrete slab on grade; Concrete; 1 in. edge R - 5 N Wall 93 sq.ft. 165 0 165 251

- Wood frame, with sheathing, siding or brick; R-19 5 1/2 in.; none E Wall 108 sq.ft. 192 0 192 292

- Wood frame, with sheathing, siding or brick; R-19 5 1/2 in.; none S Wall 75 sq.ft. 67 0 67 101

- Wood frame, with sheathing, siding or brick; R-33 9 - 10 in.; Not important

Door 18 sq.ft. 245 0 245 373

- Wood; Solid; No storm

W Wall 108 sq.ft. 96 0 96 146

- Wood frame, with sheathing, siding or brick; R-33 9 - 10 in.; Not important Ceiling 124 sq.ft. 234 0 234 251

- Roof-Ceiling combination; R-22 batts (2 X 8 rafters); Light

Whole House 875 sq.ft. 94,814 1,981 96,795 24,977 ( 8 tons )

HVAC-Calc Residential 4.0 by HVAC Computer Systems Ltd. 888 736-1101 Load calculations are estimates only, actual loads may vary due to weather and construction differences.

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