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48
Display
Action
Process circuit cools down
Scan:
■
"Information"
■
"Process"
■
"Process status"
No
Fault E6
Top up process cir-
cuit with water.
Yes
$
approx. 10 min
Control unit issues a heat demand
No
Increase set value
and ensure heat is
drawn off
Yes
Code "14:2"; evaporator temperatures
> 3 °C and < 36 °C, and for solar thermal
as the natural heat source, cylinder tem-
perature > 12 °C; and no DHW demand
Yes
No
Appliance in
sorption mode
(
"Desorption"
)
Appliance in con-
densing mode
(
"Direct heating
operation"
)
Scan:
■
"Information"
■
"Process"
■
"Desorption"
/
"Di-
rect heating oper-
ation"
Control valve
closes
High temperature
process pump
starts
Low temperature
process pump
starts
Control valve
opens
High temperature
process pump at
standstill
Low temperature
process pump
starts
No
Check connecting
cables, plugs and
actuators
Yes
Fan starts
No
After approx. 51 s
fault F9
Check the fan, fan
connecting cables,
power to the fan and
fan control
Yes
Commissioning, inspection, maintenance
Function sequence and possible faults
5678 044 GB
Summary of Contents for D2RA
Page 113: ...113 Maintenance Checking the Vitotronic 200 H accessories cont 5678 044 GB Maintenance ...
Page 133: ...133 Parts lists Sorption module hydraulics cont 5678 044 GB Components ...
Page 136: ...136 0001 0002 0003 0004 0005 Fig 83 Parts lists Miscellaneous 5678 044 GB Components ...
Page 163: ...163 5678 044 GB ...