Viessmann Vitodens 200 Start-Up/Service Instructions page 61

Vitodens 200 WB2 Service
Control Unit for Weather-Responsive Operation
Overview of coding addresses (continued)
Coding (factory default
setting) Address: Value
0A4:___
0A5:___
0A6:___
0A7:060
0A8:000
Possible coding changes for coding address 0A8 "external disable"
Coding Heating circuit pump
0A8:000 ×
0A8:001 OFF
0A8:002 ×
0A8:003 ×
0A8:004 OFF
0A8:005 OFF
0A8:006 OFF
0A8:007 OFF
× = in normal control mode
Function mode
Do not change
Do not change
Do not change
DHW tank
Setpoint value for "Additional
function for domestic hot water
heating"
("Anti-Legionnaire-Function"
– domestic hot water heated
briefly to 140ºF / 60ºC)
Boiler See table below for effect
of external disable signal
(also see page 70)
Heating circuit with mixing valve
(extension kit)
Heating circuit pump
×
OFF
×
OFF
×
×
×
OFF
with programming unit
Coding change Possible changes
Address: Value
--
--
--
A07:061 Setting range between 142 to 158ºF /
to 61 and 70ºC.
A07:070
IMPORTANT
Do not adjust domestic hot water
temperature more than 158ºF / 70ºC.
0A8:001 See table below for effect of external
to disable signal
0A8:007
Tank
(Circulating pump
for tank heating )
Mixing valve
× ×
CLOSED OFF
× OFF
CLOSED ×
× ×
× OFF
× ×
CLOSED ×
Additional Information
(continued)
--
--
--
Burner
Blocked
Blocked
Blocked
Blocked
Blocked
Blocked
Blocked
Blocked
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