3.2.6 Independent control with WCM-FS und WCM-EM
The system's external sensor is connected to EM#2. The external temperature value
is transmitted via eBUS to all remote control stations and extension modules con-
nected.
A zone control with a locally connected external sensor is still possible.
Mains
FS#2
B1
T
M22
M42
B62
EM#2
T
T
M27
M47
B67
EM#7
T
M
M
Mains
Mains
Heating circuit 7
Heating circuit 2
modul hydraulic
modul hydraulic
M71
T
Water heater
WAS/WAT
EM#8
M31
modul hydraulic
External heat exchanger
Mains
M81
B31
FS#7
T
B1.1
FS#8
Legend:
FS#2:
Remote control station WCM-FS funct. heating circuit 2
FS#7:
Remote control station WCM-FS funct. heating circuit 7
FS#8:
Remote control station WCM-FS funct. DHW load circuit
EM#2-8:
Extension module WCM-EM
B1:
External sensor
B1.1:
Circulation sensor EM#8
B31:
DHW sensor EM#8
B62:
Supply sensor heating circuit 2
B67:
Supply sensor heating circuit 7
M22:
Pump heating circuit 2
M27:
Pump heating circuit 7
M31:
Storage tank charge pump EM#8
M42:
Mixer valve heating circuit 2
M47:
Mixer valve heating circuit 7
M71:
Circulation pump EM#8
M81:
Antilegionella bypass pump (thermal disinfection)
Installation and operating instruction
Remote control station WCM-FS 2.0 and extension module WCM-EM 2.1
3 Product description
83277502 • 3/2012-10 • La
13-106
Summary of Contents for WCM-EM 2.1
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