
52
PIPING AND WIRING FOR OUTDOOR UNIT
ENGLISH
Terminal Block Information
Symbols used below pictures are as follows :
- L, L1, L2, L3 : Live (230 V AC)
- N : Neutral (230 V AC)
- BR : Brown , WH : White , BL : Blue , BK : Black
Terminal Block 1
Opening or closing
water flow for FCU cooling
Power supply for 2
nd
circuit kit
Mix Pump
Mix Valve
2WAY VALVE
(A)
L
N
L1
L2
N
L1
N
L2
1
2
3
4
5
6
8
7
Connection for
thermostat (230 V AC)
Supporting type : Heating
only or Heating/Cooling
THERMOSTAT
(Default : 230 V AC)
OUTDOOR UNIT
L
N
L1
L2
1(L)
3
2(N)
9
10
11
12
13
15
16
14
Power supply for Indoor
unit and communication
Connecting external electric power
supply for internal backup heater
POWER SUPPLY
L3 : 1Ø, 220-240V, 50Hz ; 2kW; 16A
L3, L2 : 1Ø, 220-240V, 50Hz ; 4kW; 20A
L3, L2, L1 : 3Ø, 380-415V, 50Hz ; 6kW; 16A
L1
L2
L3
N
Terminal Block 2
Terminal Block 3
17
A
CN_COM
CN_EXT
18
19
20
B
Connection for
3
rd
Party
controller (5 V DC)
Connection
for External
Controller
Terminal Block 4
Terminal
Block 4
Terminal
Block 1
Terminal
Block 2
Terminal
Block 3