EN 16905-1-2017 pdf download.Gas-fired endothermic engine driven heat pumps – Part 1 Terms and definitions.
Note 2 to entry: It can have means for heating, circulating, cleaning and humidilying the air. If the unit provides heating by reversing the refrigerating cycle, then it is a heat pump.
3.1.2
close control air conditioner
air conditioner to satisfy the requirements of the process carried out in the air conditioned room
3.1.3
control cabinet air conditioner
air conditioner to satisfy the requirements of the control cabinet
3.1.4
double-duct air conditioner
air conditioner in which, during cooling or heating. the condenser (or evaporator) intake air is introduced from the outdoor environment to the unit by a duct and rejected to the outdoor environment by a second duct, and which is placed wholly inside the place to be conditioned, near a wall
3.1.5
engine heat recovery
recovery of residual heat energy from the engine by means of a heat exchanger
3.1.6
engine heat recovery heat exchanger
heat exchanger assembly which is designed to transfer the residual heat energy to the engine heat recovery medium
3.1.7
exhaust air
air from the air conditioned space entering the outdoor heat exchanger
3.1.8
brine
heat transfer medium that has a freezing point lower than the freezing point of water
3.1.9
gas carrying circuit
assembly of parts of the GEHP appliance that carry or contain supplied gas or process gas
Note 1 to entry: This circuit includes the gas circuit.
3.1.10
gas circuit
assembly of parts of the GEHP appliance that carry or contain the supplied gas between the gas inlet connection and the outlet of the safety shut-off valves
3.1.11
gas inlet connection
part of the GEHP appliance intended to be connected to the gas supply
3.1.12
gas rate adjuster
component allowing the gas rate of a gas mixture equipment to be brought to a predetermined value according to the supply conditions
Note Ito entry: The action of operating this device is called “adjustment of the gas rate”. Note 2 to entry: E.g. gas mixer.
3.1.13
GEHP appliance
gas-tired endothermic engine driven heat pump
3.1.14
heat pump
encased assembly or assemblies designed as a unit to provide delivery of heat
Note 1 to entry: It includes a refrigeration system for heating.
Note 2 to entry: It can have means for cooling, circulating, cleaning and dehumidifying the air. The cooling is by means of reversing the refrigerating cycle.
3.1.15
heat recovery
recovery of heat rejected by the unit whose primary control is in the cooling mode by means of either an additional heat exchanger (e.g. a liquid chiller with an additional condenser) or by transferring the heat through the refrigerating system for use by units whose primary control remains in heating mode (e.g. variable refrigerant flow with simultaneous cooling and heating operation)
3.1.16
heat recovery heat exchanger
heat exchanger assembly which is designed to transfer heat to the heat recovery medium
3.1.20
Injector
component that admits gas into an internal combustion engine
3.1.21
internal combustion engine
mechanism delivering shaft power by the combustion of fuel in one or more cylinders In which working pistons reciprocate
3.1.22
outdoor heat exchanger
heat exchanger which is designed to transfer heat between any available heat source and the refrigerant
Note ito entry: In the case of an air conditioner operating in the cooling mode, this is the condenser. In the case of an air conditioner operating in heating mode, this Is the evaporator.
3.1.23
primary function
main purpose for which the GEHP appliance is designed
Note ito entry: Both the heating and cooling functions of the GEHP appliance are classed as primary functions if they satisfy the rational use of energy requirements for those functions.
3.1.24
range-rating device
component on the GEHP appliance intended to be used by the installer to adjust the nominal heat input (value of the heat input at standard rating condition) of the GEHP appliance within the range of maximum and minimum heat inputs stated in the technical specifications/instructions, to suit the actual heat requirements of the installation
3.1.25
recycled air
air from the air conditioned space entering the indoor heat exchanger
3.1.26
sealing an adjuster or control device
arrangements made to make evident any attempt to change the set adjustment (e.g. breakage of the device or the sealing material)
Note ito entry: A sealed adIuster or control device is considered to be non-existent.EN 16905-1-2017 pdf download.