36
Air-to-Water Heat Pump
Connecting the internal control unit – TT3000
Connecting the device to the power source can only be performed by a qualified installer in a volt-
age-free state!
As part of connecting the internal control unit to the connecting clips X1…X7, connect the following
cables:
• Power cable,
• Communication cable for the external device,
• Outdoor temperature sensor
Legend of cable connections to the connecting clips:
Installation of Indoor Unit
MARK
CONNECTING
TERMINALS
DIMENSIONS
OF CABLE
DESCRIPTION
X1
L1, L2, L3, N,
Power cable
X2
A5, GND
2 x 0.75 mm
2
Temperature sensor of outdoor temperature
Q12, N
2 x 0.75 mm
2
Additional external source
N, Q11,
3 x 0.75 mm
2
Cooling valve
X3
Q7, N,
3 x 0.75 mm
2
Circulation pump of heating cycle 1 (optional)
Q8, N,
3 x 0.75 mm
2
Circulation pump of heating cycle 2 (optional)
N, Q9+, Q10-
3 x 0.75 mm
2
Mixing valve of heating cycle 2 (optional)
A7, GND
2 x 0.75 mm
2
Temperature sensor of mixing-heating cycle 2 (optional)
X4
D8, GND
2 x 0.75 mm
2
Switch for heating/cooling (optional)
D7, GND
2 x 0.75 mm
2
Thermostat of mixing cycle 2 (optional)
D6, GND
2 x 0.75 mm
2
Thermostat of mixing cycle 1 (optional)
D5, GND
2 x 0.75 mm
2
Remote on/off (optional)
X5
BUS–A, BUS – B,
GND
3 x 0.75 mm
2
Communication of the external control unit in the
WPLV device
X6
A+, B-, 12 V, GND
4 x 0.75 mm
2
Communication spatial corrector (optional)
X7
A+, B-, 12 V, GND
4 x 0.75 mm
2
Communication with the expansion unit TT3003
5
Web module
TW MODBUS
UTP
Communication with PLC
TX MODBUS
/
Not in use
Ethernet
UTP
Internet connection
1,MFL69676201,영영 2017. 3. 8. 영영 3:07 Page 36
