589A7-23-305 Design Narrative 3 of 5.pdf
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This document is a Mechanical section of construction documents for a Department of Veterans Affairs project at Wichita VA Medical Center in Wichita, Kansas (VA Project No. 589A7-23-305), prepared by Alesia Architecture P.C. and dated May 17, 2024. The project involves preparing a site for Choice Dining Equipment installation.
The construction documents establish applicable design criteria referencing numerous industry standards and codes, including ASHRAE Standards 62, 15, and 90.1 for HVAC design and energy efficiency; International Mechanical and Plumbing Codes; NFPA standards (70, 72, 90A, 99, 101) for electrical, fire alarm, air conditioning, health care facilities, and life safety; VA Physical Security and Resiliency Design Manual (July 2022); VA Fire Protection Design Manual; ADA requirements; and publications from SMACNA, ANSI, ASME, and ASTM. Design conditions specify the project location at approximately 1,321 feet elevation (37.65°N, 92.43°W) with winter heating design at 7.9°F outside air and 70°F inside temperature at 35% relative humidity, and summer cooling design at 100.5°F outside air with 75°F inside at 50% relative humidity. Break rooms and office spaces are specified for 75°F summer and 70°F winter operation with 4 air changes per hour and 2 air changes per hour of outside air requirement, maintaining 30-60% humidity with no specific pressure relationship.
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DEPARTMENT OF VETERANS AFFAIRS VA PROJECT NO. 589A7-23-305
WICHITA VA MEDICAL CENTER PREPARE SITE FOR CHOICE DINING EQUIPMENT
WICHITA, KS CONSTRUCTION DOCUMENTS: 05/17/2024
ALESIA ARCHITECTURE P.C. 5 ELKHORN, NE
MECHANICAL
1. APPLICABLE DESIGN CRITERIA
A. American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE)
Guide and Data Books.
B. American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE)
Standard 62; Ventilation for Acceptable Indoor Air Quality.
C. American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE)
Standard 15; Safety Code for Mechanical Refrigeration.
D. American Society of Heating Refrigerating, and Air-Conditioning Engineers (ASHRAE)
Standard 90.1, Energy Standard for Buildings Except Low Rise Residential Buildings.
E. Americans with Disabilities Act (ADA).
F. Energy Policy Act of 2005 (EPact 2005).
G. Sheet Metal and Air Conditioning Contractors National Association, Inc. (SMACNA)
HVAC Systems Duct Design Guidebooks.
H. International Mechanical Code (IMC).
I. International Plumbing Code (IPC).
J. VA Physical Security and Resiliency Design Manual, July 2022
K. VA Fire Protection Design Manual
L. NFPA 10 – Standard for Portable Fire Extinguishers, 2022 Edition
M. NFPA 13 – Standard for the Installation of Sprinkler Systems.
N. NFPA 70 – National Electrical Code, 2023 Edition
O. NFPA 72 – National Fire Alarm and Signaling Code, 2022 Edition
P. NFPA 90A – Standard for the Installation of Air-Conditioning and Ventilating Systems.
Q. NFPA 99 – Health Care Facilities Code, 2012 Edition.
R. NFPA 101 – Life Safety Code, 2021 Edition.
S. American National Standards Institute (ANSI).
T. American Society of Mechanical Engineers (ASME) Publications.
DEPARTMENT OF VETERANS AFFAIRS VA PROJECT NO. 589A7-23-305
WICHITA VA MEDICAL CENTER PREPARE SITE FOR CHOICE DINING EQUIPMENT
WICHITA, KS CONSTRUCTION DOCUMENTS: 05/17/2024
ALESIA ARCHITECTURE P.C. 6 ELKHORN, NE
U. American Society of Testing & Materials (ASTM) Publications.
V. Department of Veteran Affairs, Office of Construction & Facilities Management Design
Manuals.
W. Department of Veteran Affairs, Office of Construction & Facilities Management Design
Guides.
2. DESIGN CONDITIONS
A. Altitude and location (approximate):
• Elevation: 1321 feet AMSL
• Latitude: 37.65 deg N
• Longitude: 92.43 deg W
B. Design Temperatures:
• Winter (Heating) 99.6%:
a. Outside Air: 7.9 deg F
b. Wind: 31.4 MPH
c. Inside: 70 deg F
d. (35% RH in the Interior Spaces)
• Winter (Infiltration):
a. Outside Air: 7.9 deg F
• Summer (Cooling) 0.4%:
a. Outside Air: 100.5 deg F DB, 73.8 deg F MCWB (Per ASHRAE
Fundamentals, 2021 Edition, 0.4% occurrence)
b. Inside: 75 deg F, 50% RH
• Summer (Infiltration):
a. Outside Air: 100.5 deg F DB, 73.8 deg F MCWB
• Break Room / Office Room (Conference, Break, Office):
a. Room Temperature: 75 deg F Summer, 70 deg F Winter
b. Room Humidity: 30% to 60%
c. Pressure Relationship: None
d. ACH Rate: 4 ACH
e. OA Requirement: 2 ACH
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