Mixing loop, double shunt with 3-way valve, type 2
A double shunt mixing loop is characterised with constant flow on the primary side which is causing high pumping energy costs. A double shunt mixing loop is normally fitted with a 3-way valve.
Mixing loop, single shunt with 3-way valve in return pipe
A single shunt mixing loop with 3-way valve in return is used when variable flow is desired on the secondary side and variable temperature is undesirable.
Modbus is an open network technology used in building management systems and across a wide range of industries. It is a de facto standard for data communication, which makes it ideal for use on all automation levels.
The overall energy efficiency of pumps is derived from the usage of motors. The EuP Directive states that from June 16th 2011, motors sold in the European Union must meet the IE2 efficiency level.
Natural refrigerants have no, or an insignificant, effect on the ozone layer and greenhouse effect. They are widely used in smaller applications, such as heating pumps, small chillers, and commercial systems.
A night setback system is used to control a heating system. A night setback system will lower the room temperature at night, which reduces heating costs. Office type buildings are not used at night, so lowering the room temperature will not cause discomfort.