Innova Stone Monoblock M1, Руководство по установке, Страница: 43 / 72

43
INSTALLATION
Terminal block for wiring
Power supply and communications
V+ V-
Control Panel power supply
H+ L-
Serial connection for communication with the CONTROL PANEL
(CAN Bus)
A+ B- Modbus connection
Probes
PT1
Plant temperature probe
PT4
Domestic hot water tank temperature probe
PT-Com
Probe connection common
Digital inputs
TA
Consent from room thermostat or generic voltage-free contact
S
Silent or Heating/Cooling switching
ON/OFF
Remote On/Off
PI-Com
Common for digital inputs
Relay outputs
PV1
Plant/domestic hot water diverter valve
PP3
Secondary circulation pump
RL-Com
Relay output common
Auxiliary generator
BC1 Backup heat generator
1 2 3 7 10 4 5 6 8 9 11 12
V+
V–
H+
L–
A+
B–
13 14 15 16
PT1
17 18
PT-Com PI-Com
PP3
RL-Com
PT4
TA
(PI3)
S
(PI4)
ON/OFF
(PI 5)
(RL1) (RL3)
BC1
PV1
< < < < < <
Description of auxiliary contacts
Power and communication terminals
1 - 2:
V+ V- power supply connection of the Control Pan-
el. There are two cases distinguished:
• No relay output used: the power supply can come from
the heat pump board with a two-core cable with a min-
imum cross-section area of 0.5 mm² and a maximum
length of 50 m.
• Minimum one relay output used: the power supply must
come from a separate source with 12 or 24 VDC character-
istics, 3W + the power required by the coils of the relays
used.
3 - 4:
H+ L- serial connection to the control panel. The
connection is polarised. Use a core shielded cable
for RS485 serial connection, minimum cross-section
area of 0.35 mm², maximum length of 100 m, sepa-
rated from the power supply cables.
5 - 6: A+ B- Modbus connection for control with external
supervisor.
Probe terminals
7 - 9:
connection of plant temperature probe PT1. For the
cases of use, see the chapter on plant water man-
agement in the Control Panel manual.
8 - 9:
connection of domestic hot water tank tempera-
ture probe PT4.
The probes are supplied with the unit. Position the probe
used in a suitable sump on the relevant tank (max. distance
50 m).
Digital input terminals
10 - 13:
TA consent from room thermostat or general volt-
age-free contact
• Closed contact: the unit is switched on for heating or cool-
ing the plant water.
• Open contact: the unit is switched off for heating or cool-
ing the plant water
If the domestic hot water function is active, this function
has priority even when the contact is open.
The terminals are supplied jumped (contact closed). Re-
move the jumper to connect the TA consent.
11 - 13:
S configurable input for activating/deactivating the
Silent function or for switching the Cooling/Heating
operating mode. The Silent function reduces the
noise level of the appliance by lowering the work-
ing frequency of the compressor and the fan.
• Operation must be activated by parameter PF5 (see Con-
trol Panel manual).