Initialization; Cascade Parameters - Immergas System Manager Kit Instructions And Warnings

5.13 INITIALIZATION.

In this section it is possible to restore the factory settings.
By performing this operation all of the operations previ-
ously carried out will be deleted including time periods,
zone numbering, etc...
Press the arrows and select "Initialization".
Press the button to enter the submenu (Z01).

5.14 CASCADE PARAMETERS.

This menu is activated only if the heat pumps are more
than one (max. 4). The manager deals with the activation
and deactivation of the heat pumps according to the
parameters set and to a possible request on the system.
As a result of a heating request the heat pumps are ac-
tivated in sequence, the activation of an individual heat
pump is determined according to the flow temperature
of the heat pumps in set configuration and to the heat-
ing-set. If the flow temperature of the heat pumps is lower
than the heating-set value minus the activation band
divided by 2, then after a period equal to the activation
delay time, the next machine will be started and so on
up to the maximum value set in the system definition
parameter (P07).
Vice-versa if, after a deactivation delay time, the flow
temperature of the heat pumps is higher than the heat-
ing-set value plus the activation band divided by 2, then
one of the heat pumps will be switched off and so on up
to complete switch-off of the heat pumps.
In the event of a domestic hot water or puffer request the
operation is similar.
In the event of cooling requests the logic is inverted.
(Activation if the flow temperature of the heat pumps
is greater than the cooling-set plus activation band
divided by 2).
N.B.: in order to simplify the installation and main-
tenance operations of the machines, it is necessary to
separately power the heat pumps.
- Cascade Parameters (C01).
- Simultaneous. All machines in set configuration will
intervene;
- Cascade. The machines are activated in sequence.
Attention: in case of installation in set configuration,
each heat pump must be equipped with omnipolar
disconnection.
- Activation Band to Start or Stop HP (C02). The
cascade generators are activated/deactivated if the
common delivery probe is outside the set-point range
± temperature / 2 set (E.g. 45° flow 10 set-point, range
= 40 ÷ 50 °C).
- Heat/Cool mode (C03). In case of heating or cooling
mode it corresponds to the wait time before the acti-
vation or deactivation of a machine.
- DHW mode (C04). In case of DHW request it cor-
responds to the wait time before the activation of a
machine.
N.B.: the total activation time (DHW and heating) of
the machines in set configuration must be less than the
integration time (if present).
- Period used to Reverse (C05). In presence of several
heat pumps one can perform a rotation in the activation
of the first heat pump in the cascade management. The
parameter sets the for how many days the heat pump
stays the first one to be activated.
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