Equithermic smart rule can be used in both modes - heating and cooling.

	Heating mode	Cooling mode
Inputs	Outdoor temperature Temperatures from zones	Outdoor temperature Temperatures from zones Humidity from zones
Output	Set point of virtual thermostat for primary circuit	- Set point of virtual thermostat for primary circuit
Limits	Minimal / Maximal set point	Minimal / Maximal set point Dew point limit (Early warning) Calculates minimal set point temperature based on highest relative humidity from all linked zone thermostats
PID correction

For more information about cooling / heating modes, see Heating and Cooling modes.

Example scenario for zone hydronic heating with equitherm regulation

Documentation EN > Equithermic regulation > image2018-2-20_7-57-6.png

Example scenario for zone hydronic cooling with equitherm regulation

Documentation EN > Equithermic regulation > image2018-2-20_7-58-46.png

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

Example scenario for zone hydronic heating with equitherm regulation

Example scenario for zone hydronic cooling with equitherm regulation

How final set point is calculated

Angle

Parallel shift

Ratio

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