Viessmann ESS VITOBLOC 200 Installation & Operating Instructions For Contractors page 23

Chp unit for operation with natural gas
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Operation
Select the "Archiv" (archive) window and confirm by
pressing OK.
The "Archiv" menu screen opens (level 4).
Fig. 19
"Archiv" menu screen
All operational and fault messages are listed in this
menu screen. Each message is displayed with the
relevant date, time, fault category and message
text.
The numeric value for the fault category has the
following meaning:
0 = message
1 = warning
2 = output reduction
3 = soft stop
4 = quick stop
(7) Return to the "Info" menu screen (
pressing the Back key (
VITOBLOC 200 EM-20/39 Operating instructions
F ig. 16) by
F ig. 11/1).
(8) Select the "Wartung" (service) window and
confirm by pressing OK.
The "Wartung" (service) menu screen opens
(level 4).
Fig. 20
"Wartung" menu screen
The following information is displayed:
Service interval:
Prescribed period between services (service
interval) in hours run.
Modulsperre:
Overrun in operating hours at which the system
is automatically shut down and disabled
(module lockout).
Vorwarnung:
Timeframe of 100 hours when a warning is
issued before the service due (pre-warning).
Nächste Wartung:
Actual number of operating hours until the next
service.
These settings can only be changed by service
personnel.
(9) Leave the Info menu by pressing the Back key
(
F ig. 11/1).
ESS Energie Systeme & Service GmbH
23

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