Warm-Hot Water Fountain Machines:
Energy Conservation Labeling Program Requirements for Warm-Hot Water Fountains
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Energy Conservation Labeling Program Requirements for Warm-Hot Water Fountains
(Promulgated and in effect May 6, 2008)
I. The scope of application, energy consumption test method and energy consumption criteria for the warm-hot water fountains (“products”) applying for Energy Label certification shall meet the following requirements:
(I) Scope
The applicable products shall be warm-hot water fountains which meet the requirements of CNS-3910-C4129.
(II) Energy consumption test conditions and method
1.Test conditions:
(1) Ambient temperature and conditions: The ambient temperature shall be maintained at 25±1C. The distance between the wall and the sides, front and top of the product shall be at least 300 mm (as shown in the Figure 1 below); and the distance between the wall and the back side shall be at least 65 mm. When the temperature difference between the ground temperature and the ambient temperature is greater than 2C, the product shall be placed on a platform with a height of at least 100 mm.
(2) Test voltage: 110V±2% or 220V±1%.
2. Test method
(1) 24-hr energy consumption E
24
(kWh/day): Fill the water containers with water. Wait until water in the hot water container reaches the highest temperature (after the heating element has shut down), and then start measuring the energy consumption (E
24
) required to maintain the hot water temperature continuously during a 24-hour period.
(2) Hot-water system's average temperature Tw (℃): Place the temperature sensors into the hot water container, at the positions of 1/4, 1/2 and 3/4 container height respectively. Fill the water containers with water. Wait until water in the hot water container reaches the highest temperature (after the heating element has shut down), and then start measuring the energy consumption required to maintain the hot water temperature continuously during a 24-hour period. Also measure the hot water temperatures continuously during the 24-hour period. The hot-water system's average temperature Tw (℃) is the average value of hot water temperatures measured during the 24-hour period, and Tw shall be no less than 90℃. (The measurement error for the average hot water system temperature in this test method shall be within ±0.5℃.)
(3) Capacity for the hot water container V (L): In accordance with Section 4.2.6 of CNS-3910, the capacity of water storage container shall be measured from the amount of water exited from the container outlet. If the method stipulated by Section 4.2.6 of CNS-3910 can not be followed, the container capacity can also be determined by measuring the difference in weight of water container before and after the addition of water to full capacity, and then convert the weight difference to water volume.
3. The temperature correction coefficient K (dimensionless) is defined by the following equation:
K = (Tw – ambient temperature) / (100 – ambient temperature) (1)
4. Standardized 24-hour energy consumption E
st,24
(kWh/day):
E
st,24
(kWh/day) = E
24
/K
(E
24
: measured energy consumption during the 24-hr period; K: temperature correction coefficient)
(III) Energy consumption criterion E (kWh/day) for warm-hot water fountains:
E = 0.053×V + 0.750
(V: water storage capacity for hot-water system (L))
(IV) The standardized 24-hour energy consumption E
st,24
shall be no higher than the energy consumption criterion E for the warm-hot water fountains.
II. Notes on Energy Label labeling:
(I) The name and address of the label user shall be clearly displayed on the product or product packaging.
(II) If the label user is an agent, the name and address of the product manufacturer shall also be clearly displayed on the product or product packaging.
(III) The product’s standardized 24-hour product energy consumption E
st,24
shall be stated in the product catalog.
(IV) The product’s standardized 24-hour product energy consumption E
st,24
and the energy consumption criterion E shall be rounded to three decimal places.
Lately update: 2014/01/17 11:40:00