Attachment 06 CRWC 22419 HVAC Calculations.pdf

Work Building - Heated/Ventilated Only Project: 2022-419 CRWC 12/08/2023

Prepared by: CROFT & Associates, Inc. 5:04 PM

1. General Information

Space Model Work Building - Heated/Ventilated Only Building Work Center Building Notes:

2. Spaces

The space model contains 7 spaces with total floor area of 4,205 sqft.

2.1. Ventilation

Ventilation

Index Space Level Floor Area Space Type ASHRAE Standard 62.1-2019 OA Requirement 1 OA Requirement 2 Direct Exhaust

(sqft) Space Usage Airflow Units Airflow Units Airflow Units

1 101 - Work Bay Level 1 3162.4 (None) EDUCATION: Wood/metal shop 10.0 CFM/person 0.18 CFM/sqft 0.0 CFM

2 102 - Laundry Level 1 141.5 (None) RETAIL: Coin-operated laundry 7.5 CFM/person 0.12 CFM/sqft 0.12 CFM/sqft

3 103 - Toilet Level 1 79.6 (None) User Defined 0.0 CFM 0.00 CFM/sqft 150.0 CFM

4 104 - Janitor Level 1 42.5 (None) GENERAL: Occupiable storage room (liq/gel)

5.0 CFM/person 0.12 CFM/sqft 150.0 CFM

5 105 - Toilet Level 1 88.8 (None) User Defined 0.0 CFM/person 0.00 CFM/sqft 150.0 CFM

6 106 - Storage Level 1 347.2 (None) MISCELLANEOUS: Warehouse 10.0 CFM/person 0.06 CFM/sqft 0.0 CFM

7 107 - Fire Cache Level 1 343.4 (None) MISCELLANEOUS: Warehouse 10.0 CFM/person 0.06 CFM/sqft 0.0 CFM

Hourly Analysis Program 6.1 Page 1 of 5

Prepared by: CROFT & Associates, Inc. 5:04 PM

2.2. Overhead Lighting and Daylighting Control

Overhead Lighting Daylighting Control

Index Space ASHRAE Standard 90.1-2019 Power Units Lighting Schedule Power Control Illum. Units

Lighting Method

Space Usage Type

Multi. Type Setpoint

1 101 - Work Bay Building Area Workshop 0.91 W/sqft LED: Free Hanging 90.1 Warehouse Lights/Elec

1.00 Not Used --- ---

2 102 - Laundry Building Area Multifamily 0.45 W/sqft LED: Recessed, Unvented

90.1 Warehouse Lights/Elec

1.00 Not Used --- ---

3 103 - Toilet Building Area Warehouse 0.45 W/sqft LED: Recessed, Unvented

90.1 Warehouse Lights/Elec

1.00 Not Used --- ---

4 104 - Janitor Building Area Warehouse 0.45 W/sqft LED: Recessed, Unvented

90.1 Warehouse Lights/Elec

1.00 Not Used --- ---

5 105 - Toilet Building Area Warehouse 0.45 W/sqft LED: Recessed, Unvented

90.1 Warehouse Lights/Elec

1.00 Not Used --- ---

6 106 - Storage Building Area Warehouse 0.45 W/sqft LED: Free Hanging 90.1 Warehouse Lights/Elec

1.00 Not Used --- ---

7 107 - Fire Cache Building Area Warehouse 0.45 W/sqft LED: Free Hanging 90.1 Warehouse Lights/Elec

1.00 Not Used --- ---

2.3. Task Lighting, Electric Equipment and Miscellaneous Heat Gain

Index Space Task Lighting Electric Equipment Miscellaneous Heat Gain

Power Units Schedule Power Units Schedule Sens.

(BTU/hr) Schedule

Latent (BTU/hr)

Schedule

1 101 - Work Bay 0.00 W/sqft (None) 0.00 W/sqft (None) 0 (None) 0 (None)

2 102 - Laundry 0.00 W/sqft (None) 0.00 W/sqft (None) 0 (None) 0 (None)

3 103 - Toilet 0.00 W/sqft (None) 0.00 W/sqft (None) 0 (None) 0 (None)

4 104 - Janitor 0.00 W/sqft (None) 0.00 W/sqft (None) 0 (None) 0 (None)

5 105 - Toilet 0.00 W/sqft (None) 0.00 W/sqft (None) 0 (None) 0 (None)

6 106 - Storage 0.00 W/sqft (None) 0.00 W/sqft (None) 0 (None) 0 (None)

7 107 - Fire Cache 0.00 W/sqft (None) 0.00 W/sqft (None) 0 (None) 0 (None)

Hourly Analysis Program 6.1 Page 2 of 5

Prepared by: CROFT & Associates, Inc. 5:04 PM

2.4. Occupancy and Infiltration

Index Space Occupants Infiltration

Occupancy Units Schedule Activity Level Sens.

(BTU/hr/person) Latent

(BTU/hr/person) Cooling Airflow

Heating Airflow

Simulation Airflow

Units Occurs

1 101 - Work Bay 2 People

90.1 Warehouse

Occupants

Medium Work 295.0 455.0 0.03 0.03 0.00 CFM/sqft All Hours

2 102 - Laundry 1 People

90.1 Warehouse

Occupants

Medium Work 295.0 455.0 0.03 0.03 0.00 CFM/sqft All Hours

3 103 - Toilet 0 People

90.1 Warehouse

Occupants

User Defined 245.0 205.0 0.03 0.03 0.00 CFM/sqft All Hours

4 104 - Janitor 0 People

90.1 Warehouse

Occupants

User Defined 245.0 205.0 0.03 0.03 0.00 CFM/sqft All Hours

5 105 - Toilet 0 People

90.1 Warehouse

Occupants

User Defined 245.0 205.0 0.03 0.03 0.00 CFM/sqft All Hours

6 106 - Storage 0 People

90.1 Warehouse

Occupants

User Defined 245.0 205.0 0.03 0.03 0.00 CFM/sqft All Hours

7 107 - Fire Cache 0 People

90.1 Warehouse

Occupants

User Defined 245.0 205.0 0.03 0.03 0.00 CFM/sqft All Hours

Hourly Analysis Program 6.1 Page 3 of 5

Prepared by: CROFT & Associates, Inc. 5:04 PM

3. Zoning

Zone Space Level

Zone 1

101 - Work Bay Level 1

Zone 2

102 - Laundry Level 1

Zone 3

103 - Toilet Level 1

Zone 4

104 - Janitor Level 1

Zone 5

105 - Toilet Level 1

Unconditioned

106 - Storage Level 1

107 - Fire Cache Level 1

Unassigned (no spaces)

4. Assemblies

Category Surface Group Selected Assembly

Exterior Above Grade Wall

Default 2016 Zone 2 Above-Grade Steel-Framed Wall

Interior Wall

Default Default Wall

Roof

Default 2016 Zone 2-3 Insulation Entirely Above Deck

Slab Floor On Grade

At-Grade Floors Default Floor

Hourly Analysis Program 6.1 Page 4 of 5

Prepared by: CROFT & Associates, Inc. 5:04 PM

5. Windows & Doors

Category Tag Width x Height, Elevation Selected Assembly

Window

Window 2 3' 6" x 4' 2" , 3' 2016 Zone 2 Metal framing, fixed

Door

Double Fiberglass Exterior Door 1 6' x 7' 2016 Zone 3 Opaque Swinging

Fiberglass Exterior Door 1 3' x 7' 2016 Zone 3 Opaque Swinging

Ins. Steel Rollup Exterior Door 1 12' x 14' 2016 Zone 3 Opaque Nonswinging

Hourly Analysis Program 6.1 Page 5 of 5

H&V Zone 1 Input Data

Prepared by: CROFT & Associates, Inc. 5:04 PM

1. General Details:

Air System Name H&V Zone 1 Equipment Type Undefined Air System Type Single Zone CAV Space Model: Work Building - Heated/Ventilated Only

2. System Components:

Ventilation Air Data:

Airflow Control Constant Ventilation Airflow Ventilation Sizing Method Sum of Space OA Airflows Unocc. Damper Position Closed Damper Leak Rate 0 %

Central Heating Data:

Supply Temperature 85.0 F Heating Source Any Schedule JFMAMJJASOND Capacity Control Cycled or Staged Capacity - Fan On

Supply Fan Data:

Fan Type User defined Configuration Draw-thru Fan Performance 0.00 in wg Overall Efficiency 100 %

Duct System Data:

Supply Duct Data:

Duct Leakage 0 %

Return Duct or Plenum Data:

Return Air Via Ducted Return

3. Zone Components:

Assigned Zones:

Zone Zone Name

1 Zone 1

Number of zones 1

Thermostats and Zone Data:

Zone

Cooling T-Stat Occ.

Cooling T-Stat Unocc.

Heating T-Stat Occ.

Heating T-Stat Unocc.

T-Stat Throttling

Range Diversity

Factor

Direct Exhaust

Fan

(F) (F) (F) (F) (F) (%) (kW)

1 75.0 80.0 68.0 60.0 1.50 100 0.0

Thermostat Schedule 90.1 Warehouse HVAC Unoccupied Cooling is Available

Supply Terminals Data:

Zone Terminal Type Air

Distribution

Air Distribution

Effectiveness Specification

Air Distribution

Effectiveness Minimum Airflow

Design Supply Temp. Fan Perf.

Fan Efficiency

Diffuser (no reheat)

Ceiling supply / ceiling return

Not Used - 0.00 CFM/person - - -

4. Sizing Data (Computer-Generated):

System Sizing Data:

Sizing Data:

Supply Fan Airflow 1835.4 CFM Ventilation Airflow 589.2 CFM Heating Supply Temperature 85.0 F

Hourly Analysis Program 6.1 Page 1 of 10

H&V Zone 1 Input Data

Prepared by: CROFT & Associates, Inc. 5:04 PM

Hydronic Sizing Specifications:

Chilled Water Supply Temperature 44.0 F Chilled Water Delta-T 10.0 F Hot Water Supply Temperature 140.0 F Hot Water Delta-T 20.0 F

Safety Factors:

Cooling Sensible 0 % Cooling Latent 0 % Heating 0 %

Zone Sizing Data:

Zone Airflow Sizing Method Sum of space airflow rates Space Airflow Sizing Method Individual peak space loads

Zone Supply Airflow Zone Htg Unit Reheat Coil FPMBX Fan

(CFM) (MBH) (MBH) (CFM)

1 1835.4 - - -

5. Equipment Data No equipment data required for this system.

Hourly Analysis Program 6.1 Page 2 of 10

H&V Zone 2 Input Data

Prepared by: CROFT & Associates, Inc. 5:04 PM

1. General Details:

Air System Name H&V Zone 2 Equipment Type Undefined Air System Type Single Zone CAV

Airflow Control Constant Ventilation Airflow Ventilation Sizing Method Sum of Space OA Airflows Unocc. Damper Position Closed Damper Leak Rate 0 %

Central Heating Data:

Supply Temperature 85.0 F Heating Source Any Schedule JFMAMJJASOND Capacity Control Cycled or Staged Capacity - Fan On

Supply Fan Data:

Fan Type User defined Configuration Draw-thru Fan Performance 0.00 in wg Overall Efficiency 100 %

Duct System Data:

Supply Duct Data:

Duct Leakage 0 %

Return Duct or Plenum Data:

Return Air Via Ducted Return

3. Zone Components:

Assigned Zones:

Zone Zone Name

1 Zone 2

Number of zones 1

Thermostats and Zone Data:

Zone

Cooling T-Stat Occ.

Cooling T-Stat Unocc.

Heating T-Stat Occ.

Heating T-Stat Unocc.

T-Stat Throttling

Range Diversity

Factor

Direct Exhaust

Fan

(F) (F) (F) (F) (F) (%) (kW)

1 75.0 80.0 68.0 60.0 1.50 100 0.0

Thermostat Schedule 90.1 Warehouse HVAC Unoccupied Cooling is Available

Supply Terminals Data:

Zone Terminal Type Air

Distribution

Air Distribution

Effectiveness Specification

Air Distribution

Effectiveness Minimum Airflow

Design Supply Temp. Fan Perf.

Fan Efficiency

Diffuser (no reheat)

Ceiling supply / ceiling return

Not Used - 0.00 CFM/person - - -

4. Sizing Data (Computer-Generated):

System Sizing Data:

Sizing Data:

Supply Fan Airflow 73.5 CFM Ventilation Airflow 24.5 CFM Heating Supply Temperature 85.0 F

Hydronic Sizing Specifications:

Hourly Analysis Program 6.1 Page 3 of 10

H&V Zone 2 Input Data

Prepared by: CROFT & Associates, Inc. 5:04 PM

Chilled Water Supply Temperature 44.0 F Chilled Water Delta-T 10.0 F Hot Water Supply Temperature 140.0 F Hot Water Delta-T 20.0 F

Safety Factors:

Cooling Sensible 0 % Cooling Latent 0 % Heating 0 %

Zone Sizing Data:

Zone Airflow Sizing Method Sum of space airflow rates Space Airflow Sizing Method Individual peak space loads

Zone Supply Airflow Zone Htg Unit Reheat Coil FPMBX Fan

(CFM) (MBH) (MBH) (CFM)

1 73.5 - - -

5. Equipment Data

Hourly Analysis Program 6.1 Page 4 of 10

H&V Zone 3 Input Data

Prepared by: CROFT & Associates, Inc. 5:04 PM

1. General Details:

Air System Name H&V Zone 3 Equipment Type Undefined Air System Type Single Zone CAV

Airflow Control Constant Ventilation Airflow Ventilation Sizing Method Sum of Space OA Airflows Unocc. Damper Position Closed Damper Leak Rate 0 %

Central Heating Data:

Supply Temperature 85.0 F Heating Source Any Schedule JFMAMJJASOND Capacity Control Cycled or Staged Capacity - Fan On

Supply Fan Data:

Fan Type User defined Configuration Draw-thru Fan Performance 0.00 in wg Overall Efficiency 100 %

Duct System Data:

Supply Duct Data:

Duct Leakage 0 %

Return Duct or Plenum Data:

Return Air Via Ducted Return

3. Zone Components:

Assigned Zones:

Zone Zone Name

1 Zone 3

Number of zones 1

Thermostats and Zone Data:

Zone

Cooling T-Stat Occ.

Cooling T-Stat Unocc.

Heating T-Stat Occ.

Heating T-Stat Unocc.

T-Stat Throttling

Range Diversity

Factor

Direct Exhaust

Fan

(F) (F) (F) (F) (F) (%) (kW)

1 75.0 80.0 68.0 60.0 1.50 100 0.0

Thermostat Schedule 90.1 Warehouse HVAC Unoccupied Cooling is Available

Supply Terminals Data:

Zone Terminal Type Air

Distribution

Air Distribution

Effectiveness Specification

Air Distribution

Effectiveness Minimum Airflow

Design Supply Temp. Fan Perf.

Fan Efficiency

Diffuser (no reheat)

Ceiling supply / ceiling return

Not Used - 0.00 CFM/person - - -

4. Sizing Data (Computer-Generated):

System Sizing Data:

Sizing Data:

Supply Fan Airflow 150.0 CFM Ventilation Airflow 150.0 CFM Heating Supply Temperature 85.0 F

Hourly Analysis Program 6.1 Page 5 of 10

H&V Zone 3 Input Data

Prepared by: CROFT & Associates, Inc. 5:04 PM

Chilled Water Supply Temperature 44.0 F Chilled Water Delta-T 10.0 F Hot Water Supply Temperature 140.0 F Hot Water Delta-T 20.0 F

Safety Factors:

Cooling Sensible 0 % Cooling Latent 0 % Heating 0 %

Zone Sizing Data:

Zone Airflow Sizing Method Sum of space airflow rates Space Airflow Sizing Method Individual peak space loads

Zone Supply Airflow Zone Htg Unit Reheat Coil FPMBX Fan

(CFM) (MBH) (MBH) (CFM)

1 150.0 - - -

5. Equipment Data

Hourly Analysis Program 6.1 Page 6 of 10

H&V Zone 4 Input Data

Prepared by: CROFT & Associates, Inc. 5:04 PM

1. General Details:

Air System Name H&V Zone 4 Equipment Type Undefined Air System Type Single Zone CAV

Airflow Control Constant Ventilation Airflow Ventilation Sizing Method Sum of Space OA Airflows Unocc. Damper Position Closed Damper Leak Rate 0 %

Central Heating Data:

Supply Temperature 85.0 F Heating Source Any Schedule JFMAMJJASOND Capacity Control Cycled or Staged Capacity - Fan On

Supply Fan Data:

Fan Type User defined Configuration Draw-thru Fan Performance 0.00 in wg Overall Efficiency 100 %

Duct System Data:

Supply Duct Data:

Duct Leakage 0 %

Return Duct or Plenum Data:

Return Air Via Ducted Return

3. Zone Components:

Assigned Zones:

Zone Zone Name

1 Zone 4

Number of zones 1

Thermostats and Zone Data:

Zone

Cooling T-Stat Occ.

Cooling T-Stat Unocc.

Heating T-Stat Occ.

Heating T-Stat Unocc.

T-Stat Throttling

Range Diversity

Factor

Direct Exhaust

Fan

(F) (F) (F) (F) (F) (%) (kW)

1 75.0 80.0 68.0 60.0 1.50 100 0.0

Thermostat Schedule 90.1 Warehouse HVAC Unoccupied Cooling is Available

Supply Terminals Data:

Zone Terminal Type Air

Distribution

Air Distribution

Effectiveness Specification

Air Distribution

Effectiveness Minimum Airflow

Design Supply Temp. Fan Perf.

Fan Efficiency

Diffuser (no reheat)

Ceiling supply / ceiling return

Not Used - 0.00 CFM/person - - -

4. Sizing Data (Computer-Generated):

System Sizing Data:

Sizing Data:

Supply Fan Airflow 150.0 CFM Ventilation Airflow 150.0 CFM Heating Supply Temperature 85.0 F

Hourly Analysis Program 6.1 Page 7 of 10

H&V Zone 4 Input Data

Prepared by: CROFT & Associates, Inc. 5:04 PM

Chilled Water Supply Temperature 44.0 F Chilled Water Delta-T 10.0 F Hot Water Supply Temperature 140.0 F Hot Water Delta-T 20.0 F

Safety Factors:

Cooling Sensible 0 % Cooling Latent 0 % Heating 0 %

Zone Sizing Data:

Zone Airflow Sizing Method Sum of space airflow rates Space Airflow Sizing Method Individual peak space loads

Zone Supply Airflow Zone Htg Unit Reheat Coil FPMBX Fan

(CFM) (MBH) (MBH) (CFM)

1 150.0 - - -

5. Equipment Data

Hourly Analysis Program 6.1 Page 8 of 10

H&V Zone 5 Input Data

Prepared by: CROFT & Associates, Inc. 5:04 PM

1. General Details:

Air System Name H&V Zone 5 Equipment Type Undefined Air System Type Single Zone CAV

Airflow Control Constant Ventilation Airflow Ventilation Sizing Method Sum of Space OA Airflows Unocc. Damper Position Closed Damper Leak Rate 0 %

Central Heating Data:

Supply Temperature 85.0 F Heating Source Any Schedule JFMAMJJASOND Capacity Control Cycled or Staged Capacity - Fan On

Supply Fan Data:

Fan Type User defined Configuration Draw-thru Fan Performance 0.00 in wg Overall Efficiency 100 %

Duct System Data:

Supply Duct Data:

Duct Leakage 0 %

Return Duct or Plenum Data:

Return Air Via Ducted Return

3. Zone Components:

Assigned Zones:

Zone Zone Name

1 Zone 5

Number of zones 1

Thermostats and Zone Data:

Zone

Cooling T-Stat Occ.

Cooling T-Stat Unocc.

Heating T-Stat Occ.

Heating T-Stat Unocc.

T-Stat Throttling

Range Diversity

Factor

Direct Exhaust

Fan

(F) (F) (F) (F) (F) (%) (kW)

1 75.0 80.0 68.0 60.0 1.50 100 0.0

Thermostat Schedule 90.1 Warehouse HVAC Unoccupied Cooling is Available

Supply Terminals Data:

Zone Terminal Type Air

Distribution

Air Distribution

Effectiveness Specification

Air Distribution

Effectiveness Minimum Airflow

Design Supply Temp. Fan Perf.

Fan Efficiency

Diffuser (no reheat)

Ceiling supply / ceiling return

Not Used - 0.00 CFM/person - - -

4. Sizing Data (Computer-Generated):

System Sizing Data:

Sizing Data:

Supply Fan Airflow 150.0 CFM Ventilation Airflow 150.0 CFM Heating Supply Temperature 85.0 F

Hourly Analysis Program 6.1 Page 9 of 10

H&V Zone 5 Input Data

Prepared by: CROFT & Associates, Inc. 5:04 PM

Chilled Water Supply Temperature 44.0 F Chilled Water Delta-T 10.0 F Hot Water Supply Temperature 140.0 F Hot Water Delta-T 20.0 F

Safety Factors:

Cooling Sensible 0 % Cooling Latent 0 % Heating 0 %

Zone Sizing Data:

Zone Airflow Sizing Method Sum of space airflow rates Space Airflow Sizing Method Individual peak space loads

Zone Supply Airflow Zone Htg Unit Reheat Coil FPMBX Fan

(CFM) (MBH) (MBH) (CFM)

1 150.0 - - -

5. Equipment Data

Hourly Analysis Program 6.1 Page 10 of 10

Zone Sizing Summary for H&V Zone 1 (In Alternative: Default Alternative)

Project: 2022-419 CRWC 12/08/2023

Prepared by: CROFT & Associates, Inc. 5:02 PM

Air System Information Air System Name H&V Zone 1 Equipment Class UNDEF Air System Type SZCAV

Number of zones 1 Floor Area 3162.4 sqft Location Occonee County Regional, SC, USA

Sizing Calculation Information Calculation Months Jan to Dec Sizing Data Calculated

Zone CFM Sizing Sum of space airflow rates Space CFM Sizing Individual peak space loads

Zone Terminal Sizing Data

Zone Name

Design Supply Airflow

(CFM)

Minimum Supply Airflow

(CFM)

Zone CFM/sqft

Reheat Coil

Capacity

(MBH)

Reheat Coil

Water gpm

@ 20.0 F

Zone Htg Unit

Coil Capacity

(MBH)

Zone Htg Unit Water gpm

@ 20.0 F

Mixing Box Fan Airflow

(CFM)

Zone 1 1835 1835 0.58 0.0 0.00 0.0 0.00 0

Zone Peak Sensible Loads

Zone Zone Zone

Cooling Time of Heating Floor

Sensible Peak Sensible Load Area

Zone Name (MBH) Cooling Load (MBH) (sqft)

Zone 1 0.0 September 18:00 32.6 3162.4

Space Loads and Airflows

Zone Name / Space Name

Cooling Sensible

(MBH)

Time of Peak

Sensible Load

Air Flow

(CFM)

Heating Load

(MBH)

Floor Area (sqft)

Space CFM/sqft

Zone 1

101 - Work Bay 0.0 September 18:00 1835 32.6 3162.4 0.58

Hourly Analysis Program 6.1 Page 1 of 10

Zone Heat Balance Summary for H&V Zone 1

Project: 2022-419 CRWC 12/08/2023

Prepared by: CROFT & Associates, Inc. 5:02 PM

Table 1. Heat Balance Loads for Zone Zone 1

DESIGN COOLING - SEPTEMBER 18:00 DESIGN HEATING

OA DB / WB 90.8 F / 72.3 F OA DB / WB 24.9 F / 20.8 F

OCCUPIED T-STAT 75.0 F OCCUPIED T-STAT 68.0 F

Zone Heat Balance Component Details Sensible [BTU/hr]

Latent [BTU/hr]

Details Sensible [BTU/hr]

Latent [BTU/hr]

Exterior Wall Convection 1956 sqft -111 - 1956 sqft 5097 -

Roof Convection 3162 sqft -299 - 3162 sqft 7860 -

Window Convection 15 sqft -18 - 15 sqft 142 -

Skylight Convection 0 sqft 0 - 0 sqft 0 -

Door Convection 714 sqft -31 - 714 sqft 3430 -

Floor Convection 3162 sqft -682 - 3162 sqft 9560 -

Interior Wall Convection 1338 sqft -196 - 1338 sqft 2571 -

Ceiling Convection 0 sqft 0 - 0 sqft 0 -

Overhead Lighting Convection 144 W 208 - 0 W 0 -

Task Lighting Convection 0 W 0 - 0 W 0 -

Electric Equipment Convection 0 W 0 - 0 W 0 -

People Convection 0 0 0 0 0 0

Infiltration 76 CFM -956 -540 88 CFM 3966 0

Miscellaneous Equipment - 0 0 - 0 0

Air Internal Energy Change - 2085 - 0 0

Safety Factor 0% / 0% 0 0 0% 0 0

0 -540 - 32626 0

Key:

Positive values are cooling loads Negative values are heating loads

Positive values are heating loads Negative values are cooling loads

Note 1: Surface convection line items show the combined effects of conductive heat gain to the surface and radiative heat gains absorbed at the surface which are then convected to room air.

Note 2: Lighting, equipment, and people line items include only the direct convective heat gain from the heat source to the room air. The radiative portion of the heat gain is first absorbed by surfaces in the room and then later convected from the surface to the air.

Therefore the effect of the radiative portion of the heat gain is found in the surface convection line items.

Note 3: Solar heat gain is absorbed by surfaces in the room, re-radiated to other surfaces, and finally convected from the surfaces to room air. Therefore, the effect of solar heat gain is found in the surface convection line items.

Hourly Analysis Program 6.1 Page 2 of 10

Zone Sizing Summary for H&V Zone 2

Project: 2022-419 CRWC 12/08/2023

Prepared by: CROFT & Associates, Inc. 5:02 PM

Air System Information Air System Name H&V Zone 2 Equipment Class UNDEF Air System Type SZCAV

Number of zones 1 Floor Area 141.5 sqft Location Occonee County Regional, SC, USA

Sizing Calculation Information Calculation Months Jan to Dec Sizing Data Calculated

Zone CFM Sizing Sum of space airflow rates Space CFM Sizing Individual peak space loads

Zone Terminal Sizing Data

Zone Name

Design Supply Airflow

(CFM)

Minimum Supply Airflow

(CFM)

Zone CFM/sqft

Reheat Coil

Capacity

(MBH)

Reheat Coil

Water gpm

@ 20.0 F

Zone Htg Unit

Coil Capacity

(MBH)

Zone Htg Unit Water gpm

@ 20.0 F

Mixing Box Fan Airflow

(CFM)

Zone 2 74 74 0.52 0.0 0.00 0.0 0.00 0

Zone Peak Sensible Loads

Zone Zone Zone

Cooling Time of Heating Floor

Sensible Peak Sensible Load Area

Zone Name (MBH) Cooling Load (MBH) (sqft)

Zone 2 0.0 July 7:00 1.3 141.5

Space Loads and Airflows

Zone Name / Space Name

Cooling Sensible

(MBH)

Time of Peak

Sensible Load

Air Flow

(CFM)

Heating Load

(MBH)

Floor Area (sqft)

Space CFM/sqft

Zone 2

102 - Laundry 0.0 July 7:00 74 1.3 141.5 0.52

Hourly Analysis Program 6.1 Page 3 of 10

Zone Heat Balance Summary for H&V Zone 2

Project: 2022-419 CRWC 12/08/2023

Prepared by: CROFT & Associates, Inc. 5:02 PM

Table 1. Heat Balance Loads for Zone Zone 2

DESIGN COOLING - JULY 7:00 DESIGN HEATING

OA DB / WB 78.2 F / 69.3 F OA DB / WB 24.9 F / 20.8 F

OCCUPIED T-STAT 75.0 F OCCUPIED T-STAT 68.0 F

Zone Heat Balance Component Details Sensible [BTU/hr]

Latent [BTU/hr]

Details Sensible [BTU/hr]

Latent [BTU/hr]

Exterior Wall Convection 144 sqft -63 - 144 sqft 298 -

Roof Convection 141 sqft -55 - 141 sqft 231 -

Window Convection 0 sqft 0 - 0 sqft 0 -

Skylight Convection 0 sqft 0 - 0 sqft 0 -

Door Convection 0 sqft 0 - 0 sqft 0 -

Floor Convection 141 sqft 34 - 141 sqft 350 -

Interior Wall Convection 733 sqft -7 - 733 sqft 215 -

Ceiling Convection 0 sqft 0 - 0 sqft 0 -

Overhead Lighting Convection 64 W 138 - 0 W 0 -

Task Lighting Convection 0 W 0 - 0 W 0 -

Electric Equipment Convection 0 W 0 - 0 W 0 -

People Convection 1 89 455 0 0 0

Infiltration 4 CFM -92 -87 5 CFM 213 0

Miscellaneous Equipment - 0 0 - 0 0

Air Internal Energy Change - -43 - 0 0

Safety Factor 0% / 0% 0 0 0% 0 0

0 368 - 1307 0

Key:

Positive values are cooling loads Negative values are heating loads

Positive values are heating loads Negative values are cooling loads

Note 1: Surface convection line items show the combined effects of conductive heat gain to the surface and radiative heat gains absorbed at the surface which are then convected to room air.

Note 2: Lighting, equipment, and people line items include only the direct convective heat gain from the heat source to the room air. The radiative portion of the heat gain is first absorbed by surfaces in the room and then later convected from the surface to the air.

Therefore the effect of the radiative portion of the heat gain is found in the surface convection line items.

Note 3: Solar heat gain is absorbed by surfaces in the room, re-radiated to other surfaces, and finally convected from the surfaces to room

Hourly Analysis Program 6.1 Page 4 of 10

Zone Sizing Summary for H&V Zone 3

Project: 2022-419 CRWC 12/08/2023

Prepared by: CROFT & Associates, Inc. 5:02 PM

Air System Information Air System Name H&V Zone 3 Equipment Class UNDEF Air System Type SZCAV

Number of zones 1 Floor Area 79.6 sqft Location Occonee County Regional, SC, USA

Sizing Calculation Information Calculation Months Jan to Dec Sizing Data Calculated

Zone CFM Sizing Sum of space airflow rates Space CFM Sizing Individual peak space loads

Zone Terminal Sizing Data

Zone Name

Design Supply Airflow

(CFM)

Minimum Supply Airflow

(CFM)

Zone CFM/sqft

Reheat Coil

Capacity

(MBH)

Reheat Coil

Water gpm

@ 20.0 F

Zone Htg Unit

Coil Capacity

(MBH)

Zone Htg Unit Water gpm

@ 20.0 F

Mixing Box Fan Airflow

(CFM)

Zone 3 150 150 1.88 0.0 0.00 0.0 0.00 0

Zone Peak Sensible Loads

Zone Zone Zone

Cooling Time of Heating Floor

Sensible Peak Sensible Load Area

Zone Name (MBH) Cooling Load (MBH) (sqft)

Zone 3 0.0 February 15:00 2.0 79.6

Space Loads and Airflows

Zone Name / Space Name

Cooling Sensible

(MBH)

Time of Peak

Sensible Load

Air Flow

(CFM)

Heating Load

(MBH)

Floor Area (sqft)

Space CFM/sqft

Zone 3

103 - Toilet 0.0 February 15:00 150 2.0 79.6 1.88

Hourly Analysis Program 6.1 Page 5 of 10

Zone Heat Balance Summary for H&V Zone 3

Project: 2022-419 CRWC 12/08/2023

Prepared by: CROFT & Associates, Inc. 5:02 PM

Table 1. Heat Balance Loads for Zone Zone 3

DESIGN COOLING - FEBRUARY 15:00 DESIGN HEATING

OA DB / WB 76.2 F / 63.9 F OA DB / WB 24.9 F / 20.8 F

OCCUPIED T-STAT 75.0 F OCCUPIED T-STAT 68.0 F

Zone Heat Balance Component Details Sensible [BTU/hr]

Latent [BTU/hr]

Details Sensible [BTU/hr]

Latent [BTU/hr]

Exterior Wall Convection 297 sqft -49 - 297 sqft 815 -

Roof Convection 80 sqft 13 - 80 sqft 177 -

Window Convection 0 sqft 0 - 0 sqft 0 -

Skylight Convection 0 sqft 0 - 0 sqft 0 -

Door Convection 0 sqft 0 - 0 sqft 0 -

Floor Convection 80 sqft -7 - 80 sqft 435 -

Interior Wall Convection 297 sqft 13 - 297 sqft 182 -

Ceiling Convection 0 sqft 0 - 0 sqft 0 -

Overhead Lighting Convection 36 W 78 - 0 W 0 -

Task Lighting Convection 0 W 0 - 0 W 0 -

Electric Equipment Convection 0 W 0 - 0 W 0 -

People Convection 0 0 0 0 0 0

Infiltration 9 CFM -34 0 10 CFM 439 0

Miscellaneous Equipment - 0 0 - 0 0

Air Internal Energy Change - -13 - 0 0

Safety Factor 0% / 0% 0 0 0% 0 0

0 0 - 2047 0

Key:

Positive values are cooling loads Negative values are heating loads

Positive values are heating loads Negative values are cooling loads

Note 1: Surface convection line items show the combined effects of conductive heat gain to the surface and radiative heat gains absorbed at the surface which are then convected to room air.

Note 2: Lighting, equipment, and people line items include only the direct convective heat gain from the heat source to the room air. The radiative portion of the heat gain is first absorbed by surfaces in the room and then later convected from the surface to the air.

Therefore the effect of the radiative portion of the heat gain is found in the surface convection line items.

Note 3: Solar heat gain is absorbed by surfaces in the room, re-radiated to other surfaces, and finally convected from the surfaces to room

Hourly Analysis Program 6.1 Page 6 of 10

Zone Sizing Summary for H&V Zone 4

Project: 2022-419 CRWC 12/08/2023

Prepared by: CROFT & Associates, Inc. 5:02 PM

Air System Information Air System Name H&V Zone 4 Equipment Class UNDEF Air System Type SZCAV

Number of zones 1 Floor Area 42.5 sqft Location Occonee County Regional, SC, USA

Sizing Calculation Information Calculation Months Jan to Dec Sizing Data Calculated

Zone CFM Sizing Sum of space airflow rates Space CFM Sizing Individual peak space loads

Zone Terminal Sizing Data

Zone Name

Design Supply Airflow

(CFM)

Minimum Supply Airflow

(CFM)

Zone CFM/sqft

Reheat Coil

Capacity

(MBH)

Reheat Coil

Water gpm

@ 20.0 F

Zone Htg Unit

Coil Capacity

(MBH)

Zone Htg Unit Water gpm

@ 20.0 F

Mixing Box Fan Airflow

(CFM)

Zone 4 150 150 3.53 0.0 0.00 0.0 0.00 0

Zone Peak Sensible Loads

Zone Zone Zone

Cooling Time of Heating Floor

Sensible Peak Sensible Load Area

Zone Name (MBH) Cooling Load (MBH) (sqft)

Zone 4 0.0 January 2:00 0.8 42.5

Space Loads and Airflows

Zone Name / Space Name

Cooling Sensible

(MBH)

Time of Peak

Sensible Load

Air Flow

(CFM)

Heating Load

(MBH)

Floor Area (sqft)

Space CFM/sqft

Zone 4

104 - Janitor 0.0 January 2:00 150 0.8 42.5 3.53

Hourly Analysis Program 6.1 Page 7 of 10

Zone Heat Balance Summary for H&V Zone 4

Project: 2022-419 CRWC 12/08/2023

Prepared by: CROFT & Associates, Inc. 5:02 PM

Table 1. Heat Balance Loads for Zone Zone 4

DESIGN COOLING - JANUARY 2:00 DESIGN HEATING

OA DB / WB 57.1 F / 55.9 F OA DB / WB 24.9 F / 20.8 F

OCCUPIED T-STAT 75.0 F OCCUPIED T-STAT 68.0 F

Zone Heat Balance Component Details Sensible [BTU/hr]

Latent [BTU/hr]

Details Sensible [BTU/hr]

Latent [BTU/hr]

Exterior Wall Convection 106 sqft 23 - 106 sqft 252 -

Roof Convection 42 sqft -7 - 42 sqft 80 -

Window Convection 0 sqft 0 - 0 sqft 0 -

Skylight Convection 0 sqft 0 - 0 sqft 0 -

Door Convection 0 sqft 0 - 0 sqft 0 -

Floor Convection 42 sqft 5 - 42 sqft 179 -

Interior Wall Convection 312 sqft 47 - 312 sqft 112 -

Ceiling Convection 0 sqft 0 - 0 sqft 0 -

Overhead Lighting Convection 1 W 2 - 0 W 0 -

Task Lighting Convection 0 W 0 - 0 W 0 -

Electric Equipment Convection 0 W 0 - 0 W 0 -

People Convection 0 0 0 0 0 0

Infiltration 3 CFM -74 0 3 CFM 156 0

Miscellaneous Equipment - 0 0 - 0 0

Air Internal Energy Change - 5 - 0 0

Safety Factor 0% / 0% 0 0 0% 0 0

0 0 - 779 0

Key:

Positive values are cooling loads Negative values are heating loads

Positive values are heating loads Negative values are cooling loads

Note 1: Surface convection line items show the combined effects of conductive heat gain to the surface and radiative heat gains absorbed at the surface which are then convected to room air.

Note 2: Lighting, equipment, and people line items include only the direct convective heat gain from the heat source to the room air. The radiative portion of the heat gain is first absorbed by surfaces in the room and then later convected from the surface to the air.

Therefore the effect of the radiative portion of the heat gain is found in the surface convection line items.

Note 3: Solar heat gain is absorbed by surfaces in the room, re-radiated to other surfaces, and finally convected from the surfaces to room

Hourly Analysis Program 6.1 Page 8 of 10

Zone Sizing Summary for H&V Zone 5

Project: 2022-419 CRWC 12/08/2023

Prepared by: CROFT & Associates, Inc. 5:02 PM

Air System Information Air System Name H&V Zone 5 Equipment Class UNDEF Air System Type SZCAV

Number of zones 1 Floor Area 88.8 sqft Location Occonee County Regional, SC, USA

Sizing Calculation Information Calculation Months Jan to Dec Sizing Data Calculated

Zone CFM Sizing Sum of space airflow rates Space CFM Sizing Individual peak space loads

Zone Terminal Sizing Data

Zone Name

Design Supply Airflow

(CFM)

Minimum Supply Airflow

(CFM)

Zone CFM/sqft

Reheat Coil

Capacity

(MBH)

Reheat Coil

Water gpm

@ 20.0 F

Zone Htg Unit

Coil Capacity

(MBH)

Zone Htg Unit Water gpm

@ 20.0 F

Mixing Box Fan Airflow

(CFM)

Zone 5 150 150 1.69 0.0 0.00 0.0 0.00 0

Zone Peak Sensible Loads

Zone Zone Zone

Cooling Time of Heating Floor

Sensible Peak Sensible Load Area

Zone Name (MBH) Cooling Load (MBH) (sqft)

Zone 5 0.0 January 15:00 1.0 88.8

Space Loads and Airflows

Zone Name / Space Name

Cooling Sensible

(MBH)

Time of Peak

Sensible Load

Air Flow

(CFM)

Heating Load

(MBH)

Floor Area (sqft)

Space CFM/sqft

Zone 5

105 - Toilet 0.0 January 15:00 150 1.0 88.8 1.69

Hourly Analysis Program 6.1 Page 9 of 10

Zone Heat Balance Summary for H&V Zone 5

Project: 2022-419 CRWC 12/08/2023

Prepared by: CROFT & Associates, Inc. 5:02 PM

Table 1. Heat Balance Loads for Zone Zone 5

DESIGN COOLING - JANUARY 15:00 DESIGN HEATING

OA DB / WB 73.2 F / 61.9 F OA DB / WB 24.9 F / 20.8 F

OCCUPIED T-STAT 75.0 F OCCUPIED T-STAT 68.0 F

Zone Heat Balance Component Details Sensible [BTU/hr]

Latent [BTU/hr]

Details Sensible [BTU/hr]

Latent [BTU/hr]

Exterior Wall Convection 120 sqft 23 - 120 sqft 264 -

Roof Convection 89 sqft 2 - 89 sqft 156 -

Window Convection 0 sqft 0 - 0 sqft 0 -

Skylight Convection 0 sqft 0 - 0 sqft 0 -

Door Convection 0 sqft 0 - 0 sqft 0 -

Floor Convection 89 sqft -17 - 89 sqft 264 -

Interior Wall Convection 498 sqft -58 - 498 sqft 174 -

Ceiling Convection 0 sqft 0 - 0 sqft 0 -

Overhead Lighting Convection 40 W 87 - 0 W 0 -

Task Lighting Convection 0 W 0 - 0 W 0 -

Electric Equipment Convection 0 W 0 - 0 W 0 -

People Convection 0 0 0 0 0 0

Infiltration 4 CFM -24 0 4 CFM 178 0

Miscellaneous Equipment - 0 0 - 0 0

Air Internal Energy Change - -13 - 0 0

Safety Factor 0% / 0% 0 0 0% 0 0

0 0 - 1036 0

Key:

Positive values are cooling loads Negative values are heating loads

Positive values are heating loads Negative values are cooling loads

Note 1: Surface convection line items show the combined effects of conductive heat gain to the surface and radiative heat gains absorbed at the surface which are then convected to room air.

Note 2: Lighting, equipment, and people line items include only the direct convective heat gain from the heat source to the room air. The radiative portion of the heat gain is first absorbed by surfaces in the room and then later convected from the surface to the air.

Therefore the effect of the radiative portion of the heat gain is found in the surface convection line items.

Note 3: Solar heat gain is absorbed by surfaces in the room, re-radiated to other surfaces, and finally convected from the surfaces to room

Hourly Analysis Program 6.1 Page 10 of 10