EVCO c-pro CLIMA sistema Installer manual - Manual (Page 81)

C-PRO CLIMA SISTEMA INSTALLER MANUAL
Page 81
9.5.3 DHW tank work set-point (MCPS module)
The DHW tank work set-point is established in manual mode from the relevant Set-point menu
present in the main menu of the c-pro micro MCPS regulator.
Depending on the dimensions of the system, the DHW tank can have just one temperature probe
(DHW tank probe) or two different temperature probes (DHW tank upper and lower probe).
If the DHW tank works with two probes, temperature regulation will be satisfied when both the
lower water temperature and the upper water temperature have reached the work set-point value set.
The regulation differential of the DHW tank is fixed and corresponds to -1°C.
Important parameters:
MCPS: Main Menu
Setpoint Boiler
MCPS: Installer Menu General parameters Upper probe en.
MCPS: Installer Menu General parameters Lower probe en.
MCPS: Maintenance Menu General parameters Probes Offset Upper DHW tank
MCPS: Maintenance Menu General parameters Probes Offset Lower DHW tank
9.5.4 Management of the AUX1 auxiliary circuit circulation pump
(MCPS module)
The MCPS solar panels controller can manage an AUX1 hot water auxiliary circuit with relative
circulation pump.
Via the relevant parameter, the circulation pump can be managed as follows:
- CONTINUOUS: the auxiliary circuit circulation pump will remain constantly activated with
system ON and in absence of blocking alarms.
- TEMPERATURE REQUEST: with heating request by the AUX1 circuit (depending from
work set-point and differential), when the temperature of the DHW tank or of the solar
panels circuit (depending on the value of Control probe parameter) is over a value set by the
(Offset ON) parameter at the temperature of the AUX1 circuit, then the AUX1 water
circulation pump will be switched on, in a way to contribute with the heating of the AUX1
circuit.
Whenever the difference between DHW tank (or solar panels circuit) temperature and AUX1
becomes lower than a value set by (Offset OFF) parameter, the AUX1 circulation pump will
be switched off.
For the temperature regulation to be effective, it is necessary for the work set-point of the auxiliary
circuit to be lower than the DHW tank work set-point.
As well as the request by the AUX 1 circuit, the solar panels circuit circulation pump
will be activated for the following special cycles:
- auxiliary circuit low temperature protection
- anti-grip cycle
The correct functioning of the circulation pump is controlled via a digital input that can be
configured as pump protection input (thermal switch) or delivery flow switch (consult the relative
explanatory paragraph).
N.B.
The AUX1 auxiliary circuit can be managed only in systems with individual heating solar panels
circuits. If this is not the case, all other enablings and settings made will have no effect.