IS 8148 : 2018 Ducted and Package Air-Conditioners - Specification

ICS 23.120 MED 3

Reaffirmed 2022

1 Scope

1.1 This Standard specifies performance testing, the standard conditions and the test methods for determining the capacity and efficiency ratings of air-cooled air-conditioners and air-to-air heat pumps. This Standard is applicable unitary and split ducted air conditioners having air-cooled and water cooled condenser, and ducted air to air heat pumps.

1.2 This standard is applicable for:

a) Residential and commercial unitary and split air conditioners and heat pumps;

b) Utilizing single stage, two stage, multi stage and variable capacity components;

c) Single refrigeration system having nominal cooling capacity 3 500 W and above with one evaporator and one condenser, controlled by a single thermostat/controller; and

d) Multiple split system utilizing one or more refrigeration systems controlled by a single thermostat/controller:

1) One outdoor and one or more indoor units, or

2) One or more outdoor and one indoor unit.

1.3 This Standard is not applicable to the rating and testing of the following:

a) Water-source heat pumps;

b) Multi-split-system air-conditioners and air-to-air heat pumps (VRF);

c) Mobile (windowless) units having a condenser exhaust duct;

d) Individual assemblies not constituting a complete refrigeration system;

e) Equipment using the absorption refrigeration cycle; and

f) Non-ducted equipment (see IS 1391 part 1 and 2 for testing of such equipment).

2 References

The standards listed below contain provisions, which through reference in this text constitute provision of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below:

101 (Part 6/Sec 1) : 1988 Methods of sampling and test for paints, varnishes and related products: Part 6 Durability tests, Section 1 Resistance to humidity under conditions of condensation (third revision)

302 (Part 1) : 2008 Safety of household and similar electrical appliances: Part 1 General requirements (sixth revision)

996 : 2009 Single-phase a.c. industrial motors for general purpose (third revision)

1391 (Part 1) : 2017 Room air conditioners - Specification: Part 1 Unitary air conditioners (third revision)

1391 (Part 2) : 2018 Room air conditioners - Specification: Part 2 Split air conditioners (third revision)

12360 : 1988 Voltage bands for electrical installations including preferred voltages and frequency

12615 : 2018 Line operated three phase a.c. motors ( IE CODE ) “efficiency classes and performance specification” ( third revision )