ISO 16358-2:2013 pdf download.Air-cooled air conditioners and air- to-air heat pumps – Testing and calculating methods for seasonal performance factors -Part 2:Heating seasonal performance factor.
1.1 This part of ISO 16358 specifies the testing and calculating methods for seasonal performance factor of equipment covered by ISO 5151, Iso 13253 and ISO 15042. For the purposes of this part of ISO 16358, it is assumed that any make-up heating will be provided by electric heaters running concurrently with the heat pump.
12 This part of ISO 16358 also specifies the seasonal performance test conditions and the corresponding test procedures for determining the seasonal performance factor of equipment, as specified in Li, under mandatory test conditions and is intended for use only in marking, comparison, and certification purposes.
1.3 This part of ISO 16358 does not apply to the testing and rating of:
a) water-source heat pumps or water-cooled air conditioners;
b) portable units having a condenser exhaust duct;
c) individual assemblies not constituting a complete refrigeration system; or
d) equipment using the absorption refrigeration cycle.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 5151, Non-ducted air conditioners and heat pumps — Testing and rating for performance
ISO 13253, Ducted air-conditioners and air-to-air heat pumps — Testing and rating for performance
ISO 15042, Multiplesplit-system air-conditioners and air-to-airheatpumps — Testing and rating for performance
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 5151, ISO 13253, ISO 15042 and the following apply.
3.1
defined heating load, Lh
heat defined as heating demand for a given outdoor temperature
3.2
make-up heating
electric heat required to cover the deficiency of the heating capacity delivered by the heat pump for the heating load
3.3
heating seasonal total load
HSTL
total annual amount of heat, including make-up heat, which is added to the indoor air when the equipment is operated for heating in active mode
3.4
heating seasonal energy consumption
HSEC
total annual amount of energy consumed by the equipment, including make-up heat, when it is operated for heating in active mode
3.5
heating seasonal performance factor
HSPF
ratio of the total annual amount of heat that the equipment, including make-up heat, can add to the indoor air when operated for heating in active mode to the total annual amount of energy consumed by the equipment during the same period
3.6
part load factor
PLF
ratio of the performance when the equipment is cyclically operated to the performance when the equipment is continuously operated, at the same temperature and humidity conditions
3.7
degradation coefficient, CD
coefficient that indicates efficiency loss caused by cyclic operation
3.8
fixed capacity unit
equipment which does not have possibility to change its capacity
Note 1 to entry: to entry This definition applies to each cooling and heating operation individually.
3.9
two (2)-stage capacity unit
equipment where the capacity is varied by two steps
Note 1 to entry: This definition applies to each cooling and heating operation individually.ISO 16358-2 pdf download.