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Further details regarding the individual steps
Explanations to the example diagram
Required heating or cooling water throughput
(min./max., see the specification from page 48)
for Vitoclima 200-C, type OC212:
Calculated available delivery pressure:
Result:
Starting from 0.75 bar ( 7.5 m head) in this diagram, the point of intersection
B with the pump curve for stage 1 lies outside the range of the required flow
rate.
The points of intersection with the pump curves for stage 2 (C) and 3 (D) lie
within the range of the required flow rate.
Therefore, set the pump to stage 2 or 3.
Adjusting the pump rate
Danger
Touching 'live' components can result in the transfer of dangerous body
currents.
Isolate the unit from the power supply, check that it is no longer 'live' and
safeguard against unauthorised reconnection.
Checking the set values and adjusting, if required
Note
For adjustments of the set values, see from page 36)
Commissioning, inspection, maintenance
(cont.)
Heating mode: 1835/2725 l/h
Cooling mode: 1734/2602 l/h
1. Remove the pump cover (for pump
position, see D in the figure on
page 6 and A in the Fig. on
page 9).
2. Position rotary selector D to the
required pump stage (A = stage 1;
B = stage 2; C=stage 3).
3. Fit the pump cover.
0.75 bar
21
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