EN 15450:2007

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
  3.1 Terms and definitions
  3.2 Symbols, units and abbreviations
4 System design requirements
  4.1 General
      4.1.1 Basic consideration
      4.1.2 Heat source
      4.1.3 Electrical supply
      4.1.4 Strategy
      4.1.5 Positioning
      4.1.6 Noise level
  4.2 Heat supply
  4.3 Additional backup heater
  4.4 Domestic hot water production or other
      attached systems
      4.4.1 Hot water demand
      4.4.2 Heat pump data
      4.4.3 Sizing (heat pump capacity, DHW
            storage volume, auxiliary source capacity)
      4.4.4 Specific control requirement for DHW
            production
      4.4.5 Other specifications
  4.5 Hydraulic integration
  4.6 Control of the system
  4.7 Safety arrangements
  4.8 Operational requirements
      4.8.1 General
      4.8.2 Provisions for monitoring operational
            conditions (e.g. temperature, power
            consumption)
5 Installation requirements
6 Commissioning of the system
  6.1 Overview
  6.2 Preparation of commissioning
      6.2.1 Heat distribution circuit
      6.2.2 Ground loop
      6.2.3 Filling and venting
      6.2.4 Switch box and electrical wiring
  6.3 Commissioning
      6.3.1 Functional performance tests
      6.3.2 Operation performance tests
      6.3.3 Balancing
  6.4 Handing over
Annex A (informative) - Guidelines for determining
                        design parameters
      A.1 Design parameters for heat pumps using water
          as a heat source
          A.1.1 Water quality
          A.1.2 Water temperature
          A.1.3 Water quantity
      A.2 Design parameters for heat pumps using
          ground as a heat source
          A.2.1 General
          A.2.2 Ground temperature
          A.2.3 Heat extraction rates
          A.2.4 Vertical bore heat exchanger
Annex B (informative) - Standard hydraulic circuits
Annex C (normative) - Calculation and requirements
                      for Seasonal Performance Factors
                      (SPF)
      C.1 Definitions
      C.2 Calculations
      C.3 Minimum and target SPF-values for
          heat pumps
Annex D (informative) - Noise levels in the vicinity
Annex E (informative) - Average daily tapping patterns
                        for domestic hot water production
      E.1 Average daily tapping patterns
      E.2 Example calculation
Annex F (informative) - Capacity control
      F.1 General control strategy
      F.2 Capacity control of the heat pump
      F.3 Enhanced Cycle Systems
Bibliography

This standard specifies design criteria for heating systems in buildings using electrically driven heat pumps alone or in combination with other heat generators. Heat pump systems considered include (see Table 1):-water - water;-water - air;-brine - water;-refrigerant - water (direct expansion systems);-refrigerant - refrigerant;-air - air;-air - water.This standard takes into account the heating requirements of attached systems (e.g. domestic hot water) in the design of heat supply, but does not cover the design of these systems. This standard covers only the aspects dealing with the heat pump, the interface with the heat distribution system and heat emission system (e.g. buffering system), the control of the whole system and the aspects dealing with energy source of the system.Systems designed primarily for cooling and systems which can operate simultaneously in cooling and heating mode are not within the scope of this standard.