Ferroli OMNIA M 3.2 Installation And Owner's Manual page 145

Method C
Double zone control
Hydraulic Module is connected with two room thermostat, while
user interface FOR SERVICEMAN set ROOM THERMOSTAT
to DOUBLE ZONE:
C.1 When unit detect voltage is 230VAC between H and L1
,zone1 turns on.When unit detect voltage is 0VAC between H
and L1, zone1 turns off.
C.2 When unit detect voltage is 230VAC between C and L1,
zone2 turns on according to climate temp curve. When unit
detect voltage is 0V between C and L1, zone2 turns off.
C.3 When H-L1 and C-L1 are detected as 0VAC, unit turns off.
C.4 when H-L1 and C-L1 are detected as 230VAC, both zone1
and zone2 turn on.
Room thermostat type2 (Low voltage):
CN21
CN5 CN28
CN32
CN29
CN25
CN42
CN40
DIS1
CN41
S3
S4
CN22
CN1
CN2
1 2 3 4 5 6 7 8 9 10
13 14 15 16 17 18 19 20 21
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Method A
Mode set control
CN21
CN5 CN28
CN32
CN29
CN25
CN42
CN40
DIS1
CN41
S3
S4
CN22
CN1
CN2
1 2 3 4 5 6 7 8 9 10
13 14 15 16 17 18 19 20 21
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Method B
One zone control
CN8 CN6
S1 S2
CN4
SW9
CN17
25 26 27 28
11 12
1 2 3 4
22 23 24 29 30
31 32
6 7 8 9
CN7 CN30
HEAT(HT) COM COOL(CL)
POWER
IN
RT1
CN8 CN6
S1 S2
CN4
SW9
CN17
11 12 25 26 27 28
1 2 3 4
22 23 24 29 30 31 32
6 7 8 9
CN7 CN30
HEAT(HT) COM
POWER
IN
RT1
CN21
CN5
CN32
CN29
CN42
CN40
CN41
CN22
CN1
CN2
CN24
CN16
1 2 3 4 5 6 7
CN13
13 14 15 16 17 18
CN15
CN18
CN11
CN31
CN35
CN36
HEAT(HT)
Method C
5
10
Double zone control
There are three methods for connecting the thermostat cable
(as described in the picture above) and it depends on the
application.
Method A
Mode set control
RT can control heating and cooling individually, like the
controller for 4-pipe FCU. When the hydraulic module is
connected with the external temperature controller, user
CN24
CN16 interface FOR SERVICEMAN set ROOM THERMOSTAT to
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MODE SET
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A.1 When unit detect voltage is 12VDC between CL and COM
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,the unit operates in the cooling mode.
A.2 When unit detect voltage is 12VDC between HT and COM,
the unit operates in the heating mode.
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A.3 When unit detect voltage is 0VDC for both side(CL-COM,
HT-COM) the unit stop working for space heating or cooling.
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A.4 When unit detect voltage is 12VDC for both side(CL-COM,
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HT-COM) the unit working in cooling mode.
Method B
One zone control
5
RT provide the switch signal to unit. User interface FOR
10
SERVICEMAN set ROOM THERMOSTAT to ONE ZONE
B.1 When unit detect voltage is 12VDC between HT and COM,
unit turns on.
B.2 When unit detect voltage is 0VDC between HT and COM,
unit turns off.
Method C
Double zone control
Hydraulic Module is connected with two room thermostat, while
user interface FOR SERVICEMAN set ROOM THERMOSTAT
to DOUBLE ZONE:
C.1 When unit detect voltage is 12VDC between HT and COM
,zone1 turn on.When unit detect voltage is 0VDC between HT
and COM, zone1 turn off.
46
CN28 CN8 CN6
CN25
S1 S2
DIS1
S3 S4
CN4
SW9
CN17
8 9 10 11 12 25 26 27 28
1 2
19 20 21 22 23 24 29 30 31 32
6 7
CN7
COM
COOL(CL)
POWER IN
RT1 RT2
zone1 zone2
CN24
CN16
CN13
CN15
CN18
CN31
CN35
CN36
3 4 5
8 9 10
CN30
POWER IN