Viessmann VITOCROSSAL 300 CU3A 35 Operating Instructions Manual page 25
Floor mounted, gas-fired condensing boiler with matrix gas burner and lambda pro control, for operation with natural gas and liquid propane gas, heating input 19 to 199 mbh, 5.6 to 58 kw, with vitotronic 200 kw6b controls
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Also See for VITOCROSSAL 300 CU3A 35:
- Technical data manual (33 pages) ,
- Service instructions manual (116 pages) ,
- Installation instructions manual (60 pages)
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Vitocrossal 300 CU3A 26 to 199 Operating
Room Temperature
Heating Curve
Example: Changing the heating curve slope to 1.5
A graph clearly shows the change in the
heating curve as soon as you alter the value
for the slope or shift.
Depending on various outside temperatures (shown on
the horizontal axis), the assigned set supply temperatures
for the heating circuit are highlighted in white.
Central Heating - Zone Circuits (ZC)
Further information can be found in "Terminology" page 42.
Factory setting: 165°F (74°C)
For all fixed setpoint zone circuits
Extended menu
1.
2. "Zone Circuits"
3. Poss.
for the required zone circuit.
4. "Zone temp setpoint"
5. Set the required value.
6. OK to confirm
Your system's heating characteristics are affected by the
slope and the shift of the selected heating curve. Further
information about the heating curve can be found under
"Terminology" on page 42.
Setting the heating curve
Factory setting:
H "Slope": 1.4
H "Shift" of the heating curve: 0
Extended menu:
1.
2. "Zone Circuit"
3. Poss.
for the required heating circuit.
4. "Heating curve slope"
5. Set the required valve.
6. Heating curve shift.
7. Set the required value.
Note: Tips on when and how to change the heating curve
slope and shift are displayed by pressing ?.
25
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