49
PIPING AND WIRING FOR OUTDOOR UNIT
ENGLISH
Terminal Block Information
Symbols used below pictures are as follows :
- L, L1, L2 : Live (230 V AC)
- N : Neutral (230 V AC)
- BR : Brown , WH : White , BL : Blue , BK : Black
Terminal Block 1
energizing water
pump for solar
thermal system
water flow switching between
under floor heating and
DHW tank heating
water flow switching between
using solar thermal heating
and skipping solar
thermal heating
turn on or off DHW
tank heater
3WAY VALVE
(B)
WATER
PUMP
(B)
WATER
TANK
HEATER
3WAY VALVE
(A)
L
L1
N
L
N
L
L
L1
N
N
1
2
3
4
5
6
8
9
7
10
Power supply for Indoor
unit and communication
Connection for thermostat
(230 V AC)
Supporting type : Heating only or
Heating/Cooling
opening or closing
water flow for FCU
cooling
OUTDOOR UNIT
2WAY VALVE
(A)
THERMOSTAT
(Default : 230 V AC)
1(L)
2(N)
3
L1
L2
N
L
N
L1
L2
11
12
13
14
15
16
17
18
19
20
1(L)
2(N)
3(L)
4(N)
connecting external electric
power supply for internal
electric heater
connecting external electric
power supply for DHW tank
electric heater
TO ELB FOR
DHW TANK E/HEATER
POWER SUPPLY
(1 Ø, 220-240 V, 50 Hz)
Terminal Block 2
Terminal Block 3 (1Ø Electric Heater)
Connection for 3
rd
Party controller
(5 V DC)
Power supply for
2
nd
heating kit
3
rd
PARTY
CONTROLLER
(DC 5 V)
Mix
Pump
Mix Valve
1(L)
2(N)
21
22
23
24
25
26
27
Terminal Block 4 & 5
TO ELB FOR
DHW TANK
E/HEATER
POWER SUPPLY
(3 Ø, 380-415 V, 50 Hz)
L
N
R
S
T
1
2
3
4
5
connecting external electric
power supply for DHW tank
electric heater
connecting external electric
power supply for DHW tank
electric heater
Terminal Block 3 (3Ø Electric Heater)
Terminal
Block 1
Terminal
Block 2
Terminal
Block 4 & 5
Terminal
Block 3