HVAC DESIGN MANUAL 02-00
Attachment No. 6
Climatic conditions for the Department of Veterans Affairs
DESIGN TEMPERATURES
EQUIPMENT
ON GRADE
20FT FLOOR SPAN
30FT FLOOR SPAN
40FT FLOOR SPAN
50FT FLOOR SPAN
BASE
ISOL
MIN
BASE
ISOL
MIN
BASE
ISOL
MIN
BASE
ISOL
MIN
BASE
ISOL
MIN
TYPE
TYPE
DEFL
TYPE
TYPE
DEFL
TYPE
TYPE
DEFL
TYPE
TYPE
DEFL
TYPE
TYPE
DEFL
125 HP & OVER
I
N
0.3
I
N
2.5
I
S
3.5
I
S
4.5
I
S
4.5
AIR HANDLING UNIT PACKAGES
SUSPENDED:
UP THRU 5 HP
---
---
---
---
H
1.0
---
H
1.0
---
H
1.0
---
H
1.0
7-1/2 HP & OVER:
UP TO 500 RPM
---
---
---
---
H,
1.7
---
H,
1.7
---
H,
1.7
---
H,
1.7
THR
THR
THR
THR
501 RPM & OVER
---
---
---
---
H,
1.0
---
H,
1.0
---
H,TH
1.7
---
H,TH
1.7
THR
THR
R
R
FLOOR MOUNTED:
UP THRU 5 HP
---
D
---
---
S
1.0
---
S
1.0
---
S
1.0
---
S
1.0
7-1/2 HP & OVER:
UP TO 500 RPM
---
D
---
R
S,
1.7
R
S,
1.7
R
S,
1.7
R
S,
1.7
THR
THR
THR
THR
501 RPM & OVER
---
D
---
---
S,
1.0
---
S,
1.0
R
S,
1.7
R
S,
1.7
THR
THR
THR
THR
IN-LINE CENTRIFUGAL AND VANE AXIAL FANS, FLOOR MOUNTED: (APR 9)
UP THRU 50 HP:
UP TO 300 RPM
---
D
---
R
S
2.5
R
S
2.5
R
S
2.5
R
S
3.5
301 - 500 RPM
---
D
---
R
S
1.7
R
S
1.7
R
S
2.5
R
S
2.5
501 - & OVER
---
D
---
---
S
1.0
---
S
1.0
R
S
1.7
R
S
2.5
60 HP AND OVER:
301 - 500 RPM
R
S
1.0
R
S
1.7
R
S
1.7
R
S
2.5
R
S
3.5
501 RPM & OVER
R
S
1.0
R
S
1.7
R
S
1.7
R
S
1.7
R
S
2.5
51
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