Viessmann WB2-44 - Page 53

Additional Information
53
Control Unit for Weather-Responsive Operation
with programming unit
(continued)
Overview of coding addresses (continued)
Coding (factory
default setting)
Address: Value
Function mode Coding
change
Address: Value
Possible change
016:000 Do not change
017:001 Do not change
018:000 DHW
tank
Circulating pump with time
delay function
018:001 Circulating pump without time delay function
019:000 Program-
ming
unit or
remote
control
Weather-responsive operation
(WS function) for all con-
nected heating circuits
019:001
*1
019:002
*1
H On systems with one heating circuit
without mixing valve or one heating
circuit with mixing valve:
Operation with room temperature
dependent control (RS function)
H On systems with one heating circuit
without mixing valve and one heating circuit
with mixing valve:
Weather-responsive operation (WS function)
for heating circuit with mixing valve and op-
eration with room temperature dependent
control (RS function) for heating circuit with
mixing valve
H On systems with one heating circuit
without mixing valve or one heating
circuit with mixing valve:
Weather-responsive operation (WS function)
in normal heating mode and operation with
room temperature dependent control (RS
function) in reduced operation
H On systems with one heating circuit
without mixing valve and one heating circuit
with mixing valve:
Weather-responsive operation (WS function)
for heating circuit without mixing valve and
on weather-responsive basis in normal heat-
ing mode and operation with room tempera-
ture dependent control in reduced operation
(WS/RS function) for heating circuit with
mixing valve
020:000 Heating
circuits
Without WS or RS remote
control unit
020:001 With WS or RS remote control unit
*2
027:000 External switching of heating program 027:001 External call for heat
028:000 Boiler During DHW production, the
boiler water temp. is max. 36
ºF / 20 ºC higher than the
desired tank water temp.
028:001 During domestic hot water production, the
boiler water temperature is limited to
172 ºF/78 ºC by the limit thermostat
029:001 Do not change
033:000 Do not change
034:000 Do not change
036:000 Do not change
038:020 Minimum supply temperature in heating mode 020 to 127 Min. possible supply temperature
68 to 261 ºF / 20 to 127 ºC
*1
Change only feasible if programming unit is mounted on a wall-mount base.
*2
Address set automatically, must be reset manually.
5285 961 v1.3