EVCO EPH4DXP1CT Installer manual - Manual (Page 64)

Evco S.p.A. c-pro 3 CLIMA sistema | Installer manual ver.1.1 | Code 144CP3CSE114
page 64 of 74
8.2.8 Control of the high and low delivery temperature (MCCT module)
Whenever the temperature of the delivery water exceeds or drops below the minimum and maximum temperature
values accepted for the system of the hysteresis value, then the c-pro 3 mega MCCT thermal power plant will start
special management cycles for these emergencies:
- High temperature protection: the high temperature protection intervention will force the immediate closure of
the mixing valve in order to prevent overtemperatures in the controlled system, until the temperature returns
to the maximum values accepted for the system.
- Low temperature protection: After a fixed delay of 60 seconds, the intervention of the low temperature
protection will cause the activation of the delivery circulation pump in order to ease heating of the water in
the system. The pump will remain on until the minimum temperature conditions are recovered.
8.3 Regulation of the zone humidity (MCZN, MCCT modules)
8.3.1 Regulation principle
Whenever the function is enabled and a room humidity transducer is present in zone, during SUMMER functioning
mode when the relative humidity detected by the room humidity transducer is over the active zone humidity set-point
value plus the value of the differential, the MCZN regulator will activate the corresponding manifold/zone
dehumidification valve.
Whenever dehumidification makes use of the delivery water for its action (established via the relative parameter), the
activation of the manifold/zone dehumidification valve generates the same sequence of activations/controls triggered
with zone heating/cooling.
For its functioning, consult the zone temperature regulation part.
8.3.2 Management of the dehumidification manifold/valve (MCZN
module)
The manifold/zone dehumidification valve is activated when the value of the room relative humidity is over the active
room humidity set-point + hysteresis value (differential).
8.3.2.1 Valve closed in advance
This function (enabled from the parameter), thanks to a self-learning allow to disable the valve zone temperature early
with respect to the setpoint temperature is reached, so as to ensure optimum comfort zone avoiding excessive
temperature fluctuations.
8.3.3 Zone humidity work set-point (MCZN module)
The zone humidity work set-point is decided in manual mode via the relative maintenance technical parameters
present in the MCZN module or automatically, set by the final user via programmed weekly time bands.
To set the automatic humidity work set-points (Economy and Comfort set-points), consult the c-pro 3 CLIMA sistema
user manual.