Nibe F2120 - System Diagram

System diagram
F2120 – docking step-controlled additional heat before reversing valve for hot water and
cooling function (4 pipe system)
-FL2
-CM1
-EB101
-QM1
-BT3
-BT12
-QM31
-GP12
-BT1
-AA25
-AA25
-AA25
-BT50
-AA25
-BT63
-KA1
-EB1
-FL10
-QZ2
-RN10
-CP10
-AA25-QN10
-AA25-BT7
-AA25-BT6
-GP13
-CP6
-BT64
-EQ1-QN12
-EQ1
-EB1
NOTE
NIBE does not supply all components in this outline diagram.
SMO20/40 (AA25) starts and stops the heat pump (F2120) to meet the heat and hot water demand of the installation.
At simultaneous heating and hot water demand, the reversing valve (AA25-QN10) switches periodically between
the climate system and the water heater/accumulator tank (CP10). When the hot water heater/accumulator tank
is fully charged (CP10), the reversing valve (AA25-QN10) switches to the climate system.
Additional heat (EB1) is connected automatically when the power demand for the installation exceeds the heat
pump capacity. This is used for both heating and charging hot water.
The additional heat can also be used if a higher temperature in the hot water is required than the heat pump can
produce.
11Chapter 3 | System descriptionF2120