Refer to the function descriptions on operating line "Relay output QX1".
BX extension module
This extension module defines use of the BX… sensor inputs.
Line no.
Operating line
6040
6041
Sensor input BX21, BX22
Only RVS61..
Only RVS41..
None
Buffer sensor B4
Buffer sensor B41
Collector sensor B6
DHW sensor B31
Hot-gas sensor B82
Refrigerant sensor liquid B83
DHW charging sensor B36
DHW outlet sensor B38
DHW circulation sensor B39
Swimming pool sensor B13
Collector sensor 2 B61
Solar flow sensor B63
Solar return sensor B64
Buffer sensor B42
Common flow sensor B10
Cascade return sensor B70
None
Buffer sensor B4
Buffer sensor B41
Collector sensor B6
DHW sensor B31
Refrigerant sensor liquid B83
DHW circulation sensor B39
Swimming pool sensor B13
Solar flow sensor B63
Solar return sensor B64
Buffer sensor B42
Common flow sensor B10
Cascade return sensor B70
Solar temp sensor 1
Solar temp sensor 2
DHW sensor B3
Hot-gas sensor B81
Refer to the function descriptions on operating line "Sensor input BX1".
H2 extension module
Line no.
Operating line
6046
Function input H2
Only RVS61..
Only RVS41..
Optg mode changeover
HCs+DHW
Optg mode changeover HCs
Optg mode changeover HC1
Optg mode changeover HC2
Optg mode changeover HCP
Error/alarm message
Minimum flow temp setpoint
Heat request 10V
Dewpoint monitor
Flow temp setp incr hygro
Refrigeration request
Refrigeration request 10V
Pressure measurement 10V
Rel room humidity 10V
Room temp 10V
Release swimming pool
Switch-on command HP stage 1
Switch-on command HP stage 2
Optg mode changeover
HCs+DHW
Optg mode changeover HCs
Optg mode changeover HC1
Optg mode changeover HC2
Optg mode changeover HCP
Error/alarm message
Minimum flow temp setpoint
Heat request 10V
Dewpoint monitor
Flow temp setp incr hygro
Refrigeration request
Refrigeration request 10V
Pressure measurement 10V
Rel room humidity 10V
Room temp 10V
Release swimming pool
Switch-on command HP stage 1
6047
Contact type H2
NC
NO
6048
Function value contact H2
6049
Voltage value 1 H2
6050
Function value 1 H2
6051
Voltage value 2 H2
6052
Function value 2 H2
The settings for input H2 on the extension module are the same as those for the Hx
inputs on the basic unit. They are described under operating line "Function input Hx".
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Siemens Switzerland Ltd
User manual RVS61.843, RVS41.813
CE1U2355en_02
HVAC Products
6 The settings in detail
28. September 2009