Data Sheet for Product

15
Siemens A6V11877580_en--_c
Smart Infrastructure 2020-10-08
Application examples
PICVs in HVAC systems combined with variable speed pumps provide even higher energy
efficiency. When sizing the pump, it must be made certain that the most critical branch or
consumer in the system – usually the most remote from the pump – receives enough
pressure (pump head). Thus, it is recommended to use a variable speed pump in constant-
pressure mode with end-point feedback, to maintain a minimum differential pressure across
the critical valve.
Residential buildings
Residential buildings with, for example, self-contained flat heating systems:
E = Floor
G = Group or zone
Non-Residential buildings
Commercial buildings with, for example, fan coil units or heat exchangers for heating or
cooling: