Viessmann KK10 Installation, Start-Up And Service Instructions Manual page 21

Replacement Components
Adjustable high limit, Part No. 7819 316
Other replacement components (not shown)
Description
Temperature gage, °F
Temperature gage, °C
Temperature gage, °C / °F
LED circuit board
Pump aquastat
(for qualified service personnel only)
Additional Information
H Electro-mechanical temperature limit
with liquid filled capillary
H Controls maximum boiler water
temperature
(Factory setting 167°F / 75°C)
H Adjustable to 189, 203 and 212°F /
87, 95 and 100°C by breaking off
tabs enabling dial to rotate right to
desired maximum temperature.
WARNING
AHL setting must be at least 36°F /
20°C higher that DHW tank
temperature.
IMPORTANT
The AHL must not be set higher than
167°F / 75°C if the FHL is set to
212°F / 100°C.
Quantity Part No.
1 7334 598
1 7334 599
1 9543 566
1
1 9525 828
21