PREN 1151-1 : DRAFT 2009

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Performance and safety requirements
  5.1 Hydraulic characteristics
      5.1.1 Q[100%] and H[100%]
      5.1.2 Reference variable pressure
      5.1.3 Reference constant pressure
      5.1.4 Load profile for heating systems
  5.2 Rated and minimum power
  5.3 Starting characteristics
  5.4 Resistance to internal pressure
  5.5 Temperature resistance
  5.6 Resistance to thermal cycling
  5.7 Venting and deblocking
  5.8 Material- and design requirement
  5.9 Fluid and structure borne noise
6 General test methods
  6.1 General
  6.2 Testing of the hydraulic characteristic
      6.2.1 Maximum hydraulic power
      6.2.2 Tolerance band on H[100%]
      6.2.3 Part load points on a control
      6.2.4 Calculation of P[L,avg] for heating
      6.2.5 Control performance
      6.2.6 Test conditions
      6.2.7 Testing of hydraulic performance
  6.3 Measurement of rated power
  6.4 Starting conditions
  6.5 Testing of resistance to internal
  6.6 Testing of temperature resistance
  6.7 Testing of resistance to thermal
      6.7.1 Motor supply voltage
      6.7.2 Intermittent operation
  6.8 Venting and deblocking
  6.9 Toxicity, biological and microbiological
7 Information for use
  7.1 General
  7.2 Instruction handbook
  7.3 Marking
Annex A (informative) - Additives
  A.1 Additives
Bibliography

Describes general principles for the construction, use and testing of circulation pumps of the glandless type, having a rated power input P[1] <= 200 W, intended to be used in heating installations and domestic hot water service installations.