EVCO EPH4DXP1CT Installer manual - Manual (Page 58)

Evco S.p.A. c-pro 3 CLIMA sistema | Installer manual ver.1.1 | Code 144CP3CSE114
page 58 of 74
the value of the differential for that zone, the MCZN regulator will activate the corresponding zone heating/cooling
manifold.
The activation of the manifold automatically generates an activation request for the delivery circulation pump in the
MCCT controller that serves the requesting zone which, after a delay time that can be set from the parameter,
activates the circulation of water in the system and the management of the mixing valve.
After activation of the circulation pump the delivery water temperature control is performed.
Whenever the temperature of the delivery water does not satisfy the delivery set-point (or the mixing valve set-point,
if present) after a delay time that can be set from parameter, the heat pump/boiler can be activated in winter mode
(depending on the settings made) or the chiller is activated in summer mode.
To regulate the delivery water temperature of the mixing valve and the relative utilities for heating/cooling of the
water, consult the relative paragraphs.
8.1.2 Management of the zone heating/cooling manifolds (MCZN
module)
The zone heating/cooling manifold is activated when:
- Winter functioning mode: the value of the room set-point is lower that the active room set-point - hysteresis
value (differential)
- Summer functioning mode: the value of the room set-point is higher that the active room set-point +
hysteresis value (differential)
Every zone heating/cooling manifold present in the system works independently and, once activated, generates an
activation request of the delivery circulation pump to which it is associated using the relevant parameter.
There is also the adaptive management of valve, this feature allows you to disable the valve in advance of the zone
temperature setpoint temperature is reached, so as to guarantee an optimal comfort zone avoiding excessive
temperature fluctuations as well as switching in advance.
8.1.3 Fan Coil
In the case of fan coil system that provides a setting other than serving both in temperature and moisture (summer
mode). For the characteristics of the zone module it is possible to predict the speed control of the fans is a 3-step is
modulating.
Are manage the following loads:
- ON-OFF water valve (one for heating/cooling) or free water – cooling function / dehumidification
- ON-OFF hot water valve – heating / post-heating function
- Post-heating electric coil / heating support – dehumidification / heating function
- 3 fan speed – cooling / heating / dehumidification function
- Modular fan speed regulation – cooling / heating / dehumidification function.
Depending on the configuration will be activated on the valve as a function of the set and of the control band. May also
be activated also the electric battery configured as support for the heating according to its own offset and a delay for
the activation of the resource.
Both the cooling and the dehumidification will be activated, according to its set and individual regulation proportional
band, the cold water valve. To manage the dehumidification request when there is not request of cooling, there will be
the following possibilities: