Viessmann LB1 - Page 39

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1. Press OK + å simultaneously and hold for
approx. 4 s.
2. "Factory settings"
3. Confirm "Yes" with OK.
The following settings are reset:
■
"Time program"
■
"Holiday program" is ended.
■
The "Background vent." operating program is set.
■
"Intensive mode" or "Economy mode" are
switched off.
■
"Date" is set to 01.09.2016.
■
"Language" is set to "German".
■
"Contrast" and "Brightness" default back to the
factory settings.
■
Parameter settings:
All unmarked and marked parameters
!
default
back to the factory settings: See page 20.
■
The "Message list" is deleted.
Vitovent 200-C Function check
1. Press OK + å simultaneously and hold for
approx. 4 s.
2. "Function check"
3. Use / to select the function.
4. Confirm with OK.
■
The selected function is enabled.
■
"Ventilation: Overview" appears on the display.
5. Use to terminate the selected function.
The following functions can be tested:
Function System characteristics
"Fan" The fans are switched on.
The following steps are repeated cyclically:
1. The fans are controlled with 10 V for 120 s.
2. The fans are controlled with 1.7 V for 120 s.
3. The fans are controlled with 0 V for 10 s.
"Preheating coil ON"
■
The fans are controlled with 1.7 V.
■
The electric preheating coil is switched on and regulated to the cur-
rent actual outdoor air temperature plus 10 K.
"Bypass" The fans are controlled with 1.7 V. Any open bypass will be closed.
The following steps are then repeated cyclically:
1. The bypass is opened.
2. The bypass remains open for 60 s.
3. The bypass is closed.
4. The bypass remains closed for 60 s.
Service functions
Factory settings
5816558
Service