The Energy Information (Dishwashers) Regulations 1999

Regulations 4(2), 5(2) and 10(a)

SCHEDULE 4ENERGY EFFICIENCY, CLEANING AND DRYING PERFORMANCE CLASS

1. The energy efficiency class of a dishwasher shall be determined as follows–

A reference consumption C_R shall be calculated as follows:
C_R = 1.35 + 0.025 × S when S ≥ 10
C_R = 0.45 + 0.09 × S when S ≤ 9
where S is the capacity of the dishwasher in standard place settings (Schedule 1 paragraph 1 note VIII).
An energy efficiency index E₁ is then set as
where
- C is the energy consumption of the dishwasher (Schedule 1 paragraph 1 note V).
The energy efficiency class is then determined in accordance with Table 1:
TABLE 1
Energy efficiency class Energy efficiency index E₁
A E₁ < 0.64
B 0.64 ≤ E_1< 0.76
C 0.76 ≤ E_1< 0.88
D 0.88 ≤ E_1< 1.00
E 1.00 ≤ E_1< 1.12
F 1.12 ≤ E_1< 1.24
G E₁ ≥ 1.24

2. The cleaning performance class of a dishwasher shall be determined in accordance with Table 2–

Cleaning performance class	Cleaning performance index P_c as defined in the harmonized standards using a standard cycle
A	P_c > 1.12
B	1.12 ≥ P_c> 1.00
C	1.00 ≥ P_c> 0.88
D	0.88 ≥ P_c> 0.76
E	0.76 ≥ P_c;> 0.64
F	0.64 ≥ P_c> 0.52
G	0.52 ≥ p_c

3. The drying performance class of an application shall be determined in accordance with Table 3–

Drying performance class	Drying performance index P_D as defined in the harmonized standards
A	P_D > 1.08
B	1.08 ≥ P_D > 0.93
C	0.93 ≥ P_D > 0.78
D	0.78 ≥ P_D > 0.63
E	0.63 ≥ P_D > 0.48
F	0.48 ≥ P_D > 0.33
G	0.33 ≥ P_D

C_R = 1.35 + 0.025 × S	when S ≥ 10
C_R = 0.45 + 0.09 × S	when S ≤ 9