Installation Manual
43
ENGLISH
Installation of Indoor Unit
ELEMENT
TERMINAL BLOCK
DESCRIPTION
X1
L1, L2, L3, N, PE
Power cable
X2
A5, GND
Temperature sensor for external temperature
Q11, N
Cooling valve
Q12, N, PE
Additional external source
X3
Q7, N, PE
Circulation pump of heating cycle 1 (optional)
Q8, N, PE
Circulation pump of heating cycle 2 (optional)
N, Q9+, Q10-
Mixing valve of heating cycle 2 (optional)
A7, GND
Temperature sensor of mixing-heating cycle 2 (optional)
X4
D8, GND
Switch heating/cooling and/or PV signal (optional)
D7, GND
Thermostat of heating cycle 2 (optional)
D6, GND
Thermostat of heating cycle 1 (optional)
D5, GND
Remote on/off (optional)
X5
BUS-A, BUS-B, GND
Communication with the ODU
X6
A+, B-, 12 V, GND
Communication spatial corrector (optional)
X7
A+, B-, 12 V, GND
Communication with expansion unit TT3003
1
Flow electrical heater
2
Tree way valve for switching between heating and DHW
3
Basic input/output module MD1
4
D4
Flow switch
5
Web module (OPTIONAL)
TW Modbus
Communication with PLC
TX Modbus
Not in use
Ethernet
Internet connection
6
A6
Temperature sensor of the supply pipe
7
Q3
Main circulation pump
8
A1
Temperature sensor of the return line
9
Process module - PLC
WM
Communication with the Web module
TEX
MODBUS communication with the ODU
TS
Communication with the spatial corrector
TE2
Communication with the basic module MD1
RQ1
ALARM dry contact
RQ2
RESET dry contact
10
Power supply ~ 230 V / 12 V
L
Phase 230 V 50 Hz
N
Neutral 230 V 50 Hz
Protective earth
V-
GND
V+
12 V dc
11
A3
Temperature sensor refrigerant pipe – condenser inlet.
12
A4
Temperature sensor refrigerant pipe – condenser outlet.
13
Membrane Keyboard
14
A2
Temperature sensor of sanitary water
C
Electrical contactor of the electrical heater
TV
Thermal protection of the electrical heater
RC
RC Filter.
1,MFL69676201,영영 2017. 3. 8. 영영 3:07 Page 43
