Table of Contents
Advertisement
PIPING AND WIRING FOR INDOOR UNIT
36
Wiring Connection
Connect the wires to the terminals on the control board individually according to the outdoor unit
connection.
• Ensure that the wire color of the outdoor unit and terminal No. are same as those of the indoor
unit respectively.
Terminal Block 1
energizing water
pump for solar
thermal system
1
2
3
4
L
L1
N
L
WATER
3WAY VALVE
PUMP
(B)
(B)
water flow switching between
using solar thermal heating
and skipping solar
thermal heating
Terminal Block 2
opening or closing water
flow for FCU cooling
11
12
13
14
15
L1
L2
2WAY VALVE
(A)
Terminal Block 3 (1Ø Electric Heater)
connecting external electric power
supply for internal electric heater
1(L)
2(N)
3(L)
TO ELB FOR
DHW TANK E/HEATER
connecting external electric
power supply for DHW
tank electric heater
CAUTION
!
Be sure to test the power line and communication line for incorrect wiring before power is
applied.
1) If the power line and communication line are swapped over, the product will be damaged.
2) Incorrect wiring confirmation test method : Measure the resistance across the power
terminals (L,N) using a multi meter.
- Resistance value of a normal connection: 1 mΩ or more
- Incorrect wiring resistance value: 500 mΩ or less
water flow switching between
under floor heating and
DHW tank heating
5
6
7
8
9
N
L
N
L
L1
WATER
3WAY VALVE
TANK
(A)
HEATER
turn on or off DHW
tank heater
16
17
18
19
20
N
L
N
L1
L2
THERMOSTAT
(Default : 230 V AC)
Connection for thermostat (230 V AC)
Supporting type : Heating only
or Heating/Cooling
4(N)
POWER SUPPLY
(1 Ø, 220-240 V, 50 Hz)
10
N
Terminal
Terminal
Block 1
Block 2
Terminal Block 4 & 5
21
22
23
A
B
3
rd
PARTY
CONTROLLER
(DC 5 V)
Connection for 3
rd
Party controller
(5 V DC)
WARNING
!
Make sure that the screws of the terminal
are free from looseness.
Terminal
Terminal
Block 4 & 5
Block 3
24
25
26
27
28
L(L1) N(L2) 3(A) 4(B)
POWER
COMM
(
)
(
)
- Quick Links:
- Model Information
Hide quick links:
Advertisement
Table of Contents
