Regulation Of The Zone Humidity (Mczn, Mcct, Mcde Modules) - Evco C-PRO CLIMA SYSTEMA Installer Manual

9.2.9 Delivery anti-freeze protection (MCDE module)
During the winter functioning mode when the system is not running (i.e. in OFF state or with time
bands enabled but in a day when the system is off), however an delivery anti-freeze protection
control remains active
If the external temperature goes below the predefined anti-freeze threshold, the system will function
with special circulation pumps activation in order prevent breakage in the system caused by frozen
pipes.
- External temperature lower than 4.0°C: delivery pumps always active;
- External temperature between 5.0 and 1.5 °C: delivery pumps active 10 minutes every 6
hours;
-
External temperature over 1.5°C: delivery pumps off
When the external temperature is between -4.0 and -5.0°C the delivery pumps behaviour depends
on the previous situation.
9.3 Regulation of the zone humidity
9.3.1 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.
9.3.2 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).
Important parameters:
MCZN: Installer menu
MCZN: Installer menu
MCZN: Installer menu
MCZN: Installer menu
MCZN: Installer menu
MCZN: Installer menu
MCZN: Maintenance Menu
MCZN: Maintenance Menu
C-PRO CLIMA SISTEMA INSTALLER MANUAL
Zones Zone A(B)setup
Zones Zone A(B)setup
Zones Zone A(B)setup
Zones Zone A(B)setup
Zones Zone A(B)setup
Zones Zone A(B)setup
Zone A(B) Maintenance
Zone A(B) Maintenance
Page 77
(MCZN, MCCT, MCDE modules)
Sensor type
H. probe pos.
Dehum. with H2O
Zone probe signal
Zone probe signal)
Zone probe signal)
Regulation enabling
Humid. regulation
Probe type
Min H. value
Max H. value
Humidity
Hysteresis