Dominus (Optional); Room Chrono-Thermostats (Optional); Humidistat On/Off (Optional); External Temperature Probe (Optional) - Immergas TRIO PACK HYBRID 4 Instructions And Warnings

1.16 DOMINUS (OPTIONAL).

The system can be remote controlled using the optional Dominus
kit.
Connect the appliance as shown (Fig. 20).
The following is necessary to enable Dominus:
- position the Dip Switches: OFF-OFF-OFF-ON;
- set the System supervision parameter on the control panel =
Domin;
- configure the Dominus APP profile on Trio.
The Dominus firmware must be updated to at least
revision 2.02.
For further information, consult the relative instruction sheet.
1.17 ROOM CHRONO-THERMOSTATS
(OPTIONAL).
The indoor unit is prepared for the application of room
chrono-thermostats, which are available as optional kits (Fig. 20).
A maximum of 2 temperature controllers can be applied directly
to the appliance.
All Immergas chrono-thermostats are connected with 2 wires only.
Carefully read the user and assembly instructions contained in
the accessory kit.
Disconnect power to the appliance be-
fore any electrical connection.
On/Off Immergas digital chrono-thermostat.
The chrono-thermostat allows:
- set two room temperature values: one for day (comfort temper-
ature) and one for night (reduced temperature);
- set a weekly programme with four daily switch on and switch
off times;
- select the required operating mode from the various possible
alternatives:
- manual mode (with adjustable temperature);
- automatic mode (with set programme);
- forced automatic mode (momentarily changing the temperature
of the automatic programme).
The chrono-thermostat is powered by two 1.5V LR 6 type alkaline
batteries.
On/Off chrono-thermostat electrical connection (Optional).
The operations described below must
be performed after having removed the
voltage from the appliance.
On/Off ambient thermostat or Chrono-thermostat: must be con-
nected to the 40-1 / 41 terminals, eliminating the X40-1 jumper
for zone 1 and 40-2 / 41 for zone 2.
Make sure that the On/Off thermostat contact is "dry", i.e. in-
dependent of the mains voltage, otherwise the P.C.B. would be
damaged.
The connections must be made on the terminal board inside the
control panel or the appliance's main panel (Fig. 20).
If any On/Off chrono-thermostat is used, arrange two
separate lines in compliance with current regulations
regarding electrical systems.
No indoor unit pipes must ever be used to earth the
electric system or telephone lines.
Ensure elimination of this risk before making the indoor unit
electrical connections.

1.18 HUMIDISTAT ON/OFF (OPTIONAL).

You can make a dehumidification demand by using a humidistat.
Connect the appliance as shown (Fig. 20).
1.19 EXTERNAL TEMPERATURE PROBE
(OPTIONAL).
The outdoor condensing unit has a standard external probe that
can be used as an external probe of the heat pump.
The external probe is used to:
- Thermoregulate the water flow temperature;
- Determine the use of additional generators.
If the outdoor condensing unit is positioned in an area that is not
suitable for temperature reading, it is advisable to use an additional
external probe (Fig. 21), which is available as an optional kit.
Refer to the relative instruction sheet for positioning of the ex-
ternal probe.
For the correct operation of the optional probe, it is necessary to
install the Expansion Kit (optional) and then enable it (Par. 3.27).
The presence of the external probe allows the system flow temper-
ature to be set automatically based on the outdoor temperature
in order to adapt the heating or cooling provided to the system.
The system flow temperature is determined by the setting on the
"Zone" menu and by the "User" menu for the offset values based
on the curves shown in the diagram (Par. 1.20).
If the system is divided into two zones, the flow tem-
perature is calculated based on the zone with the higher
temperature in central heating mode and with the lower
temperature in cooling mode.
In case of failure, after having powered off and back on, the out-
door temperature is automatically detected by the external probe
on the outdoor condensing unit.
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