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Introduction Warm-water underfloor heating (UFH) has become more widely used in the last 10-15 years. It provides background heat in large spaces and makes tiled floors much more comfortable to walk on in houses. Compared with traditional radiators, UFH provides a number of operational...
This document specifies test conditions and test procedures for determining the performance characteristics of air source heat pump water heaters for hot water supply with electrically driven compressors with or without supplementary electric heater and connected to or...
1.1 The test method covers a heavy-duty diesel engine test procedure conducted under high soot conditions to evaluate oil performance with regard to valve train wear, top ring wear, sludge deposits, and oil filter plugging in an EGR environment. This test method is commonly referred to as the...
This document specifies test conditions and test procedures for determining the performance characteristics of air source heat pump water heaters for hot water supply with electrically driven compressors with or without supplementary electric heater and connected to or...
4.1 This section provides a description of the environmental conditions listed in Section 1 and describes the sub-conditions within each condition. Examples provided for many of the conditions and sub-conditions are provided as guidance only. Each of the conditions described should be evaluated and...
This Standard applies to (a) direct expansion ground source heat pumps for systems using ground heat exchangers as a thermal source or sink for heating and/or cooling, with or without a supplementary heating source; and (b) unitary single...
NOTE: This guide specification covers the requirements for water source heat pump systems and ground source closed-loop heat pump systems.
Two types of bulk hydrogen supply systems are covered in this standard: liquid and gaseous. A bulk gas hydrogen supply system is one that contains more than 5000 scf (141.6 m3) of hydrogen. A bulk liquid supply system is one that contains more than 39.7 gal (150 L) of hydrogen. Requirements of this...
This European Standard is applicable to gas-fired appliances producing domestic hot water. It applies to both instantaneous and storage gas-fired combined with electrical heat pump. It applies to a package marketed as single unit or fully specified by the manufacturer that have: - a...
Spon's Mechanical and Electrical Services Price Book 2020 continues to be the most comprehensive and best annual services engineering price book currently available, providing detailed pricing information across the full range of mechanical and electrical services, together with higher-level costs...
The material defined by this specification is a vinyl based, pumpable, or airless sprayable, paintable, heat curing sealer which is non-yellowing. WSS-M4G359-A is suitable for three wet and traditional paint systems; however compatibility with paints should be verified for any...
4.1 Metal parts made by additive manufacturing differ from their traditional metal counterparts made by forging, casting, or welding. Additive manufacturing produces layers melted or sintered on top of each other. The part's shape is controlled by a computer as well as by the layers. The computer...
This European standard specifies aerodynamic, acoustic and electrical power performance test measurements for un-ducted / ducted continuous supply ventilation / supply air ventilation units in a single room or a single dwelling used in residential ventilation. In general such units contain: - fan;...
5.1 Need for Heat Flux Measurements: 5.1.1 Independent measurements of temperature and heat flux support the development and validation of engineering models of fires and other high environments, such as furnaces. For tests of fire protection materials and structural assemblies,...
This European Standard is applicable to gas-fired appliances producing domestic hot water. It applies to sorption heat pumps connected to or including a domestic hot water storage tank. It applies to a package marketed as single unit or fully specified that have: - a heat input...
This part of IEC 60335 deals with the safety of electric HEAT PUMPS, including SANITARY HOT WATER HEAT PUMPS, AIR CONDITIONERS, and DEHUMIDIFIERS incorporating motor-compressors and HYDRONIC FAN COILS UNITS, their maximum RATED VOLTAGES being not more than 250 V for...
This European Standard specifies requirements for design, calculation and installation of factory made thermal insulated bonded single and twin pipe systems for directly buried networks for continuous operation with treated hot water at various temperatures up to 120 ºC and occasionally with peak...
This European Standard is applicable to gas-fired appliances producing domestic hot water. It applies to sorption heat pumps connected to or including a domestic hot water storage tank. It applies to a package marketed as single unit or fully specified that have: - a heat input...
This European Standard specifies requirements for design, calculation and installation of factory made thermal insulated bonded single and twin pipe systems for directly buried hot water networks for continuous operation with treated hot water at various temperatures up to 120 ºC and occasionally...
Included Equipment and Components. This standard shall apply, but not be limited to, the following types of HVAC Equipment that are exposed to wind: Air handling units as defined in AHRI Standards 430 (I-P). Air-to-air heat exchangers as defined in AHRI Standards 1060 (I-P). Dehumidifiers as...
