24
INSTALLATION
Method ON/OFF HEAT / COOL Digital input effect Remote controller Setup*
A √
The operation mode is defined by the digital input.
The unit will be ON in COOL mode when L1-C is closed.
The unit will be on in HEAT mode when H-L1 is closed.
If both digital input are closed the unit
will be ON in COOL mode.
The user can only
set the target
water flow temp.
B √
The unit will be ON when the digital input is closed.
The unit will operate in the mode
defi ned by the controller.
The user can set
the operation
mode and the
target water
flow temp.
6 ROOM THERMOSTAT
ROOM THERMOSTAT
MODE SETTING
DUAL ROOM
THERMOSTAT
SCROLL
YES
NON
YES
NON
YES
NON
6 ROOM THERMOSTAT
ROOM THERMOSTAT
MODE SETTING
DUAL ROOM
THERMOSTAT
SCROLL
YES
NON
YES
NON
YES
NON
Room thermostat (ON/OFF - HEAT/COOL by digital input)
External ON / OFF (thermostat)
External COOL/HEAT (thermostat)
Voltage 220-240VAC
Maximum running
current
0.2A
Wiring size 0.75mm
2
HEAT
COOL
POWER IN POWER IN
Method B Method A
Nota For more details refer to paragraph " ROOM THERMOSTAT (ON/OFF - HEAT/COOL by digital input)" in the section "SET UP OF THE
SYSTEM".
H
H
RT RT
L1
L1C C
Booster heater of the DHW tank (TBH)
Voltage 220-240VAC
Maximum running current
0.2A
Wiring size 0.75mm
2
Boiler (AHS)
Outside circulation pump (P_o)
Voltage 220-240VAC
Maximum running current
0.2A
Wiring size 0.75mm
2
Voltage
Passive relay
(dry contact)
Maximum running current
100mA
Wiring size 0.75mm
2
For 5-7, unit, the
terminal number is 25
and 26.
Electrical booster
The unit is able to manage a 2-stage electric booster (For the OMNIA UI
HI unit the electric booster is already installed and wired inside the indoor
unit).
TANK BOOST HEATER
CONTROL SIGNAL
OUTPUT
AHS BOILER CONTROL
(dry contact)
P_o outside pump
IBH1
stage 1 booster
IBH2
stage 2 booster
TBH
AHS1
P_o
IBH1 IBH2
AHS2
N
IBH1 IBH2
N
☞
fi g. 1 fi g. 2
fi g. 3
fi g. 4
fi g. 5
fi g. 6
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