40 System diagram 0020212733
116 System diagram book multiMATIC 0020200783_02
40 System diagram 0020212733
40.1 System diagram limitation
The heat pump's heat output must be adjusted such that it is
appropriate for the size of the domestic hot water cylinder's
pipe coil.
Heat source options, nos 1, 2, 3, 4 (→ Page 125)
40.2 Terminal assignment
40.2.1 VR 71 main expansion module terminal
assignment
R1: Heating pump
R2: Heating pump
R3: Heating pump
R7/8: 3-way mixer
R9/10: 3-way mixer
R11/12: 3-way mixer
S1: System temperature sensor
S2: Flow temperature sensor
S3: Flow temperature sensor
S4: Flow temperature sensor
S5: Bottom cylinder temperature sensor (domestic hot water
cylinder)
40.3 Required settings in the controller
System diagram: 8
Config.: VR71: 3
HEATING1 / Type of circuit: Heating
HEATING1 / Room temp. mod.: Temp. mod. or Thermost.
HEATING2 / Type of circuit: Heating
HEATING2 / Room temp. mod.: Temp. mod. or Thermost.
HEATING3 / Type of circuit: Heating
HEATING3 / Room temp. mod.: Temp. mod. or Thermost.
ZONE1 / Zone activated: Yes
ZONE1 / Zone assignment: VRC700
ZONE2 / Zone activated: Yes
ZONE2 / Zone assignment: VR91 ad.1
ZONE3 / Zone activated: Yes
ZONE3 / Zone assignment: VR91 ad.2