The Energy Information (Dishwashers) Regulations 1999

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

SCHEDULE 4 ENERGY 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:

• CR = 1.35 + 0.025 × S	when S ≥ 10
  CR = 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 ≤ E1< 0.76
  C	0.76 ≤ E1< 0.88
  D	0.88 ≤ E1< 1.00
  E	1.00 ≤ E1< 1.12
  F	1.12 ≤ E1< 1.24
  G	E1 ≥ 1.24

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

TABLE 2

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

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

TABLE 3

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