Viessmann VITOTRONIC 300 GW2B, Инструкция по установке и обслуживанию

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Vitotronic 300, GW2B Installation and Service
Troubleshooting
Fault Display
(continued)
Displayed
fault code
System characteristics Cause Measures
59 With primary store system:
DHW tank heating is started and
stopped by DHW tank temperature
sensor 1.
Lead break, DHW tank
temperature sensor 2
Check the DHW tank temperature
sensor (see page 124).
5A Control mode. Lead break, low
loss header supply
temperature sensor
Check the supply temperature sensor
(see page 124).
Without supply temperature sensor:
Set code “52:0” in the “General” group.
60 Boiler with maximum temperature,
no output reduction, mixing valve
return temperature control “Open”.
Short circuit, temperature
sensor aJ A
Check temperature sensor aJ A
(see page 124).
68 Boiler with maximum temperature,
no output reduction, mixing valve
return temperature control “Open”.
Lead break, temperature
sensor aJ A
Check temperature sensor aJ A
(see page 124).
Without temperature sensor:
Set code “4A:0” in the
“General” group.
70 Shunt pump constantly “ON”.
With primary store system:
Mixing valve primary circuit
“Closed”, no DHW heating.
Short circuit, temperature
sensor aJ B
Check temperature sensor
aJ
B
(see page 124).
78 Shunt pump constantly “ON”.
With primary store system:
Mixing valve primary circuit
“Closed”, no DHW heating.
Lead break, temperature
sensor aJ B
Check temperature sensor aJ B
(see page 124).
Without temperature sensor:
Set code “4b:0” in the
“General” group.
90 Control mode. Short circuit, temperature
sensor
/
,
Connection at the solar
control module.
Check temperature sensor
/
(see separate installation and service
instructions).
91 Control mode. Short circuit, temperature
sensor
aÖ
,
Connection at the solar
control module.
Check temperature sensor
aÖ
(see separate installation and service
instructions).