03.03.2021 Rev. 01
18
9.2.
Operating Principle
The boiler can be set in 2 operations modes:-‘Summer’ (
DHW
only), ’Winter’ (
CH & DHW
) ,
9.2.1.
Winter Mode (CH & DHW)
1.
Press the
ON/OFF
button (
K5
). Radiator and tap symbol will be displayed on the screen.
2.
CH water set temperature will be displayed on the screen when DHW is not needed.CH heating
set temperature is increases by pressing (
K1
) button, and decreases by pressing (
K2
) button.CH
set temperature is displayed on the screen when pressed to these buttons. Flame symbol ( ) is
displayed on the screen when combi is started-up. The radiator symbol on the screen will be
flashing when combi works at CH mode.
3.
DHW set temperature is increased by pressing to (
K7
) button, and decreased by pressing (
K6
)
button. DHW set temperature is displayed on the screen when pressed to these buttons. When the
DHW is needed, combi is worked on DHW mode and tap symbol will be flashing when combi
works at DHW mode. Because of the DHW priority, even if the appliance is operating at CH,
combi will switch to when DHW is needed.
9.2.2.
Summer Mode ( DHW only)
1.
Press the
ON/OFF
button (
K5
) until the tap symbol will be displayed on the screen.
2.
DHW heating set temperature is increases by pressing (
K
7) button, and decreases by pressing
(
K6
) button. DHW set temperature is displayed on the screen when pressed to these buttons.
Combi will started at DHW mode when DHW is needed.
9.3.
Boiler Frost Protection Mode
When water outlet temperature decreased below
5°C
, frost protection function of combi boiler operating
system provides that burner starts up and increases water outlet temperature up to
30°C
.
Frost protection mode works under the conditions below:
1.
Combi Boiler electrical supply should be turned on.
2.
Main gas valve on gas circuit should be opened.
3.
Hydraulic water pressure should be adjusted properly.
Combi boiler should not be blocked.
Summary of Contents for WT-S 35
Page 10: ...03 03 2021 Rev 01 9 4 PARTS...
Page 11: ...03 03 2021 Rev 01 10 5 BOILER HYDRAULIC SCHEMA...
Page 14: ...03 03 2021 Rev 01 13...
Page 20: ...03 03 2021 Rev 01 19 10 ELECTRICAL DIAGRAM AND RELATED CONNECTIONS...
Page 22: ...03 03 2021 Rev 01 21...
Page 23: ...03 03 2021 Rev 01 22...
