Brochure
1-150.14
21
PERFORMANCE DATA
Hot Water Conversion Tables - Example Calculations
Conversion factor example #1:
Solution:
•
•
• The standard rated capacity of an HSB 86 is based on water flow rate of 6.3 GPM, from Table 19.1.
• The standard high motor speed airflow of an HSB 86 is 1340 CFM, from Table 19.1.
• The maximum mounting height, at standard conditions for an HSB 86 is 16 feet, from Table 19.1.
•
Btu
A
= Btu
S
x Heating Capacity Factor = 60,200 x 1.201 =
For water flow rate, since only the entering water and air temperature conditions have changed, the water flow rate will remain
6.3 GPM.
WTD
A
= Btu
A
A
FAT
A
= EAT
A
A
A
s
Max. Mounting Height
A
= Max. Mounting Height
S
x Correction Factor = 16 ft. x 0.89 = 14.2 feet
Conversion factor example #2:
water flow rate, water temperature drop, final air temperature and maximum mounting height?
Solution:
•
•
Btu
S
= Btu
A
From Table 19.1, a V 279
The capacity of the V 279 at actual conditions will be Btu
A
= Btu
S
x Heating Capacity Factor = 212,600 x 0.714 =
Since the capacity was calculated based off standard conditions with factors for changes in entering water and air temperature
conditions, the water flow rate will remain 22.2 GPM.
WTD
A
= Btu
A
A
FAT
A
= EAT
A
A
s
÷ Btu
A
Max. Mounting Height
A
= Max. Mounting Height
S
47.6 feet