Viessmann ESS VITOBLOC 200 Installation & Operating Instructions For Contractors page 25

Chp unit for operation with natural gas
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Operation
5.3.8 Calling up enable values (level 3)
(1) Select "Freigabe" (enable) in the menu screen
(
F ig. 13).
(2) Confirm selection by pressing OK.
The "Freigabe" (enable) menu screen opens.
Fig. 24
"Freigabe" menu screen (level 3)
When the menu screen appears, the "Freigabe"
(enable) window is already marked for selection.
(3) Confirm "Freigabe" selection by pressing OK.
The "Freigabe-Einstellungen" (enable settings)
menu screen opens (level 4).
Fig. 25
"Freigabe-Einstellungen" menu screen (level 4)
VITOBLOC 200 EM-20/39 Operating instructions
The enable settings are displayed in this menu
screen.
After selection, the values can be changed using
the arrow keys.
Confirm the new settings by pressing OK.
(4) In the "Freigabe" (enable) menu screen, select
the "Schaltuhr" (time switch) window and confirm
by pressing OK.
The "Schaltuhr" (time switch) menu screen opens
(level 4).
Fig. 26
"Schaltuhr" menu screen (level 4)
The preset operating times for heating mode are
displayed in this menu screen.
F ig. 26 shows the values in the delivered
condition.
The values are changed with the LEFT/RIGHT
arrow keys followed by confirmation of the entry
by pressing OK.
Examples of settings for continuous operation
and differentiated operation with activation of
legionella pasteurisation are listed below.
ESS Energie Systeme & Service GmbH
25

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