Dunkirk ARTESIAN 220, Инструкция по установке и эксплуатации

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Method B - Detailed Residential Sizing Sample Calculations
Example
1
A water heater is to be installed with a new boiler. The residence has the following fixtures:
Bath
#1 Bath #2
3 GPM Shower Head Vanity
30 Gal. Bathtub
Vanity
Kitchen Laundry
Kitchen Sink Clothes Washer
Automatic Dishwasher
The heat loss of the house is 80,000 BTU/hr
Note:
Although a four section boiler would be capable of heating the house (Net Rating = 82,000 BTU/hr),
its DOE heating capacity is only 94,000 BTU/hr (Need 110,000 Btu/hr). For this reason, install a
five section boiler that has a heating capacity of 125,000 BTU/hr.
Solution:
The completed sizing sheet for this example is shown in figure 2. The adjusted peak hour demand
is 145 gallons per hour. From table 1, we see that
a
water heater 220 will fulfill this requirement
with the appropriate boiler. Refer to Table 1 for required boiler output. If the model 220 is used in
combination with a boiler capable of producing 110,000 Btu / hr. The output will give you 156 GPH
first hour ratings. The circulator on the boiler must be capable of producing 3.4 GPM.
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