To obtain an estimate of the flow temperature, the The device measures the flow temperature every 5 minutes and calculates the average since the last radio communication. It then adds the user-specified flow offset.
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(\text{average since last radio communication}) + \text{offset} |
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If the Radio Communication Interval is 5 minutes, then the estimated flow temperature is the raw flow temperature plus the user-specified flow offset.
If the Radio Communication Interval is 120 minutes, then the estimated flow temperature is
The device only moves the motor at each radio communication momentevery 60 minutes. To compute the motor movement, the device computes the flow moving average over the last 60 minutes and then applies a Proportional Controller Gain algorithm:.
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--uriencoded--\text%7BNew %25%7D = \text%7BPrevious %25%7D + (P * (\ |
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text%7BSetpoint Flow Temperature%7D - \text%7BFlow Moving Average%7D) * 4) |
The default value of P is 31. It can be modified via the downlink Port 1 Downlink packet.