Vaillant VR 68, Operating And Installation Manual

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Operating and Installation Manual for Solar Module VR 68 0020054784_00 22
Display
screen Title
screen Adjustable
operating values
(only display = A) Remarks Unit Min.
value Max.
value Increment or
possible
values Preset
value
C17 Parameters
Solar circuit Running time of
solar pump (A) For monitoring of
maintenance intervals Hrs 0 9999 1 0
Reset running times Reset running time of
solar pump to 0 hrs Yes, No No
Pump activation
duration controlling Adjustment of pump
output via activation
duration controlling or
timing device to
maintain the activation
temperature
differential for as long
as possible On, Off Off
C21 Total system
parameters Mode Auto_OFF Determines the heating
control outside the
programmed time
window Frost
protection,
ECO, energy
sav Frost
protection
Frost protection
delay time Delayed start of frost
protection function or
ECO function Hr 0 12 1 4
Max. pump blocking
time If the feed target
temperature is
achieved for an
extended period, the
heating is switched off
for the prescribed
pump blocking time
(dependent upon the
outside temperature) Min Off, 5 60 1 15
C22 Total system
parameters Max. advanced
heating time Before the start of the
first time window Min 0 300 10 0
Max. heating switch
off time Before the end of a
time window Min 0 120 10 0
AT through-heating When the outside
temperature is
reached, continuous
heating is active °C OFF, -25 +10 1 Off
C24 Service Telephone number Entry of the telephone
number for the service
requirement
Changing the code
number 0000 9999 each 1 1000
Maintenance date Day/Month/Year
adjustable
C25 Tools Outside
temperature
correction Matching of the
external sensor R -5 5 1,0 0
Room temperature
correction Matching the room
temperature sensor R -3 3 0,5 0
Display contrast 0 15 1 6
C26 Software versions Software-Version
VR 68 (A) Display of version
number
Table 7.2 Display screens in the level for the expert technician
(continuation)
7 Start-up