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| Heating mode | Cooling mode | |
|---|---|---|
| Inputs |
|
|
| Output |
| - Set point of virtual thermostat for primary circuit |
| Limits |
|
|
| PID correction |  | |
| Info |
|---|
For more information about cooling / heating modes, see Heating and Cooling modes. |
Example scenario for zone hydronic heating
...
with equitherm regulation
Example scenario for zone hydronic cooling with equitherm regulation
How final set point is calculated
Equitherm curve returns temperature of flow water based on outdoor temperature. Angle of the curve, parallel shift, temperature limits and adjustments based on data from thermostats are affecting the final results.
Angle
For floor heating systems, values between 0.2 and 0.8 are commonly used. Lower values are more suitable for high quality insulation.
| Outdoor temperature | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Slope: | -20ºC | -15ºC | -10ºC | -5ºC | 0ºC | 5ºC | 10ºC | 15ºC | 20ºC |
| 0.2 | 33 | 32 | 32 | 30 | 29 | 27 | 24 | 22 | 20 |
| 0.4 | 42 | 40 | 38 | 36 | 33 | 30 | 27 | 24 | 20 |
| 0.6 | 50 | 48 | 45 | 41 | 37 | 33 | 29 | 25 | 20 |
| 0.8 | 59 | 56 | 52 | 47 | 42 | 37 | 31 | 26 | 20 |
| 1.0 | 65 | 61 | 57 | 53 | 47 | 40 | 34 | 27 | 20 |
| 1.2 | 74 | 69 | 64 | 58 | 52 | 44 | 37 | 28 | 20 |
| 1.5 | 82 | 76 | 70 | 64 | 58 | 50 | 40 | 30 | 20 |
| 1.75 | 90 | 84 | 77 | 71 | 63 | 54 | 43 | 32 | 20 |
| 2.0 | 90 | 90 | 84 | 77 | 70 | 60 | 47 | 34 | 20 |
| 2.25 | 90 | 90 | 88 | 82 | 75 | 65 | 52 | 36 | 20 |
| 2.5 | 90 | 90 | 90 | 87 | 80 | 70 | 56 | 38 | 20 |
| 2.75 | 90 | 90 | 90 | 90 | 84 | 73 | 57 | 38 | 20 |
| 3.0 | 90 | 90 | 90 | 90 | 86 | 77 | 61 | 41 | 20 |
Parallel shift
Ratio
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