Adjusting The Heating Curves - Viessmann KOB Pyromat ECO Service Instructions For Contractors

Further details regarding the individual steps
The following boiler actuators can be controlled subject to system equipment
level (not required during commissioning):
Display
"Boiler pump ON"
"Open boiler valve"
"Close boiler valve"
"Open valve accumulator [Open buffer
valve]"
"Close valve accumulator [Close buf-
fer valve]"
"Open primary air valve [Open primary
air damper]"
"Close primary air valve [Close pri-
mary air damper]"
"Open secondary air valve [Open sec-
ondary air damper]"
"Close secondary air valve [Close sec-
ondary air damper]"
"Open central fault"
The following mixer module actuators can be controlled separately depending
on the module (recommended during commissioning):
Display
"Pump on"
"Open valve"
"Close valve"

Adjusting the heating curves

The heating curves illustrate the relationship between the outside temperature and
the boiler water or flow temperature.
To put it simply: The lower the outside temperature, the higher the boiler water or flow
temperature.
The room temperature, again, depends on the boiler water or flow temperature.
Settings in the delivered condition:
■ Slope = 1.4
■ Level = 0
Commissioning, inspection, maintenance
Explanation
Test of fault alarm system connected on-
site (if installed).
Explanation
(cont.)
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