1 

## Schedule – 1
Frost Free (No-Frost) Refrigerator

1. Scope

1.1 This scheme specifies the energy labeling requireme nts for electric mains powered Frost Free (No-Frost) refrigerating appliance of the vapo ur compression type intended for household and similar use being manufactures, impor ted, or sold in India.

1.2 This Standard shall be read in conjunction with IS 15750: 2000.

1.3 In particular, this schedule specifies the followin g: (a) Frost Free (No-Frost) Appliance (b) Projected Annual Energy Consumption (PAEC) (c) Tested Energy Consumption (E t ) (d) Comparative Energy Consumption (CEC) (e) Total Adjusted Storage Volume for No Frost (V adj_tot_nf ) (f) Star Rating Plan (g) Printing requirements for refrigerating appliances energy labels

The above terms have been defined in Annexure I – S ection 1 (DEFINITIONS) of this
schedule.



### 2. Schedule of tests

2.1 Method of tests
The testing code and procedure for Frost Free (No-F rost) Refrigerator would be as per IS
15750 : 2000.

2.2 Parameters to be tested

2.2.1 Energy Consumption
The Energy Consumption of the Frost-Free (No-Frost) refrigerator will be tested as per IS
15750: 2000.

2.2.2 Rated Volume (Storage and Gross)
Each compartment gross and storage volume of the ap pliance shall meet the requirements set
out in IS 15750: 2000.2

2.3 Test Report
The results of tests shall be reported as per IS 15 750: 2000 with the relevant sections from the mentioned appendix applicable and will clearly ment ion the gross volume and the storage
volume.



### 3. Tolerance Limit

The tolerance limit for the volume (storage & gross ), pull-down, and operating temperature performance shall be as defined in IS 15750: 2000.



### 4. Conditions of Compliance

The conditions of compliance shall be as specified in IS 15750: 2000.



### 5. Rating Plan

Rating plan will be as per Annexure I – Section 2 ( CALCULATIONS FOR THE ENERGY LABEL) of this schedule.



### 6. Sampling

The samples will be picked up by Bureau of Energy E fficiency (BEE) or its designated agency for testing as per the following sampling pl an: a) One sample will be picked up at random from the man ufacturing facility or
warehouse. b) One sample will be picked from a retail outlet.



### 7. Qualification a) Pull Down Test
The appliance shall meet the requirements set out i n IS 15750: 2000. b) Operating Temperature Performance Test
Operating Temperature Performance Test as defined i n IS 15750: 2000 shall be required only if consideration for special compartment(s) is taken in calculating adjusted volume.

While all units within a model are required to meet the Pull-down test (and Operating Temperature Performance test as applicable), a test report for a single unit is required to confirm this for the purposes of energy labeling.



### 8. Label Design, manner of display

The label design and manner of display will be as p er Annexure I - Section 3 (LABEL DESIGN AND MANNER OF DISPLAY) of this schedule.3



### 9. Fees a) Registration fee is payable on application for assi gnment of authority is Rs. 1000/- (One thousand only). b) Registration fee is payable on application for rene wal of authority to affix labels is Rs. 500/- (Five hundred only). c) Labeling fee for affixation of label on each piece of Frost Free (No-Frost) refrigerator is Rs. 10/- (Ten only).4 

## Annexure – I to Schedule 1

SECTION 1

DEFINITIONS

1 Definitions

For the purposes of this schedule, the definition g iven in IS 15750: 2000 and those below apply. The definitions below take preference over t he ones in the above mentioned standards.

1.1 Frost Free (No-Frost) Appliance

A household refrigerator appliance in which all fro zen food storage space is cooled by a frostfree system. Unfrozen food storage space may or may not be cooled by a frost-free system but all storage spaces in the appliance whether frozen or unfrozen are automatically defrosted with automatic disposal of water.

In a frost-free system:

a. Cooling is provided by forced air circulation.

b. The system is automatically operated to prevent per manent formation of frost on all refrigerated surfaces and

c. No accumulation of ice or frost forms on stored foo d.

1.2 Projected Annual Energy Consumption (PAEC )

The estimated energy used by a single unit during o ne year’s use. This is calculated from Tested Energy Consumption (E t ) (refer 2.1.1 of this Annexure). (Units: kWh/Year)

1.3 Tested Energy Consumption (E t )

The value of energy consumption as determined by IS 15750: 2000. This is calculated for a period of 24 hours. (Units: Wh)

1.4 Comparative Energy Consumption (CEC)

The nominal energy consumption of a model of refrig erating appliance. It is based on the
PAEC av of the model (refer 2.2 of this Annexure). The CEC appears on the energy label. (Units: kWh/Year)5

1.5 Total Adjusted Storage Volume for No Frost (V adj_tot_nf )

The rated storage volume of a compartment adjusted to compensate for heat loadings on spaces which are at temperature other than that of fresh food type space.

NOTE: The adjusted volume shall be calculated on th e basis of the STORAGE VOLUME of each compartment.

1.6 Star Rating

The number of stars displayed on the energy label. The available stars are between a
minimum of one and a maximum of five shown in one s tar interval. The star rating is calculated from the Star Rating Band (refer 2.5 of this Annexure) The Star Rating determination will vary for different models based on the storage volume

. (No units)

1.7 Star Rating Band

The Star Rating Band is a range of energy efficienc y (kWh/Year) which is arrived by calculations (refer 2.5 of this annexure), and is u sed for determining the number of stars displayed on the energy label.

1.8 Family of models

Family of models is the range of models of one part icular brand, to which a single set of test reports is applicable and where each of the models has the same relevant physical characteristics, comparative energy consumption, an d energy efficiency rating and performance characteristics. The term ‘model’ is sy nonymous with ‘family of models’.

1.9 Variant

A model variant is an alternative version of a mode l which has the same sales specification and the same model number or other form of designat ion as another version of the model, and offers the same performance except that it has a di fferent PAEC and may have a different Star Rating.6 

## SECTION 2

CALCULATIONS FOR THE ENERGY LABEL

2.1 GENERAL

This Section sets out the equations and procedures for calculating values of Projected Annual Energy Consumption (PAEC) & Comparative Energy Cons umption (CEC) and the Star Rating which appear on the energy label.

2.1.1 Projected Annual Energy Consumption (PAEC)

The process consists of measuring the tested energy consumption (E t ) (Appendix K of AS/NZS 4471.1:1997), of each unit tested, then calc ulating the projected annual energy consumption (PAEC) of the unit.

PAEC = E t

* (365/1000) (kWh/Year)

E t = tested energy consumption expressed in Wh per 2 4 hours, rounded to the nearest
whole number.

2.2 NUMBER OF TEST AND PROCESSING OF DATA

2.2.1 Number of units required

For the purpose of determining the CEC of a model f or labeling, three separate units of the nominated model shall be tested for energy consumpt ion in accordance with Section 2 of IS
15750 : 2000.

2.2.2 Number of tests per unit

Each unit shall be tested with sufficient test runs to enable a valid E t to be determined for that
unit. This determination shall be documented in a t est report containing the test result for all
test runs used to derive E t (refer to IS 15750 : 2000).

2.2.3 Results
After testing three or more separate units the sepa rate values of PAEC shall be averaged and
referred to as PAEC
av.7

2.2.4 Rounding

Unless otherwise stated, number shall be rounded an d recorded to five significant figures. The values of PAEC, PAEC
av , CEC, and Star Rating Band shall be rounded of (< 0.5 to lower whole number and ≥ 0.5 to higher whole number) to t he nearest whole number.

2.3 COMPARATIVE ENERGY CONSUMPTION

2.3.1 General

The CEC for a model shall not be less than the aver age (rounded to a whole integer) PAEC value (i.e. PAEC
av ) for the three (or more) units which are tested to determine the label particulars. The CEC shall be an integer in units o f kWh/Year.
The CEC and Total Adjusted Storage Volume for No Fr ost (V adj_tot_nf ) shall be used to determine the Star Rating Band and Star Rating of t he model.

2.3.2 Variant
Two or more variants of a model may use a common la bel with a CEC not less than the highest PAEC
av

(rounded to the nearest whole number) of those var iants.

2.4 TOTAL ADJUSTED STORAGE VOLUME FOR NO FROST (V adj_tot_nf )
Fresh Food Chamber Target Temperature = +3 Degre e Celsius

Freezer Chamber Target Temperature = -15 Degree Celsius

Adjusted Volume Factor = (Test room Temperature – Freezer Temperature) /
(Test rom Temperature – Fresh Food Temperature)

= [32 - ( -15)] / [(32 - 3)]

= 1.62
Total Adjusted Volume for No Frost refrigerator ( V adj_tot_nf )

= Fresh Food Storage Volume + 1.62 * Freezer Stora ge Volume

2.5 STAR RATING

The star rating parameters k nf (Constant Multiplier (kWh/Litre/Year)) & c nf (Constant Fixed Allowance (kWh/Year)) shall be obtained from TABLE 2.1 / 2.2 / 2.3, depe nding on the year of manufacturing/import/assembling

S. No. Product Manufactured/Imported/Assembled Tabl e to be used
1. From 07 January 2010 to 31 December 2011 2.1

2. From 01 January 2012 to 31 December 2013 2.2

3. From 01 January 2014 to 31 December 2015 2.38

The following equation shall be used to determine t he Star Rating Bands for a particular
model:

Star Rating Band (SRB) nf = k nf * V adj_tot_nf + c nf Where,

k nf = Constant Multiplier (kWh/Litre/Year)

V adj_tot_nf = Total Adjusted Storage Volume for No Frost (Litre )

c nf = Constant Fixed Allowance (kWh/Year)

TABLE 2.1: Star Rating Band valid from 07 January 2 010 to 31 December 2011.

Star Rating Band k nf

Constant Multiplier c nf

Constant Fixed Allowance

1 Star * 0.8716 759

2 Star * * 0.6973 607

3 Star * * * 0.5578 486

4 Star * * * * 0.4463 389

5 Star * * * * * 0.3570 311

TABLE 2.2: Star Rating Band valid from 01 January 2 012 to 31 December 2013.

Star Rating Band k nf

Constant Multiplier c nf

Constant Fixed Allowance

1 Star * 0.5578 486

2 Star * * 0.4463 389

3 Star * * * 0.3570 311

4 Star * * * * 0.2856 249

5 Star * * * * * 0.2285 199

TABLE 2.3: Star Rating Band valid from 01 January 2 014 to 31 December 2015.

Star Rating Band k nf

Constant Multiplier c nf

Constant Fixed Allowance

1 Star * 0.4463 389

2 Star * * 0.3570 311

3 Star * * * 0.2856 249

4 Star * * * * 0.2285 199

5 Star * * * * * 0.1828 1599

The above equation provides for the value of the va rious Star Rating Bands for a particular
model. The CEC of the model as determined from 2.3. 1 will be compared with the various Star Rating Bands. The Star Rating chosen for the m odel will be based on the above comparison. CEC will be compared to the lower and t he upper limits of each Star Rating Band. The Star Rating corresponding to the band who se lower rating is less than CEC and upper limit is greater than or equal to CEC will be assigned to the model.

Lower Limit of SRB < CEC ≤ Upper Limit of SRB

There is no tolerance for the Star Rating Bands. All tested products mus t meet the minimum threshold for each Star Rating Band. The scope for manufacturing tolerance and other variations shall be accounted for when determining the Star Rating.

2.6 ENERGY LABEL VALIDITY

The CEC value shall be accepted as valid if, when a single sample of a labeled model is tested for an initial screening test and its PAEC i s such that:

PAEC < 1.1 * CEC

If this is not the case, the CEC shall be accepted as valid if three additional units are tested and the average PAEC of these additional units is s uch that:

PAEC (av) < 1.1 * CEC

Additionally the PAEC shall be less than the upper limit of the corresponding Star Rating Band of the Star Rating of a single model tested or if two additional units are tested then
PAEC of two out of three and PAEC
av should be less than then upper limit of the corresponding Star Rating Band.10 

## SECTION 3

LABEL DESIGN AND MANNER OF DISPLAY

3.1 PLACEMENT
The energy label shall be adhered to the upper port ion of each appliance on the outside of the
door.

3.2 MATERIAL AND SHAPE

The label shall be self –adhesive and shall be desi gned as set out in Figure 3.1.

However, in the case of a stainless steel or other finishes that may be permanently marked or stained by the adherence of a label, the use of a d ouble sided swing tag or single sided nonrotating swing tag is permitted.

3.3 COLOURS
The label shall be printed as per the following spe cification in the following colours on a white background (see Figure 3.2):

Red: Pantone warm red

Yellow: Pantone 116

Black: Pantone Black

Green: Pantone 340

3.4 SAMPLE LABEL
An example of a printed energy label for a refriger ating appliance is shown in Figure 3.3.

The label will mention the following:

1. Appliance: Refrigerator

2. Energy Consumption per Year (CEC)

3. Model Name/Number, Year of Manufacturing

4. Brand

5. Type

6. Gross Volume

7. Storage Volume11

Figure 3.1: Design Scheme for the Label (Sample).12 Figure 3.2: Colour Scheme for the Label (Sample).13 Figure 3.3: Sample Label14

Sample Picture of manner of affixing of Label :