ELECTRICAL AND CONTROL SETTINGS
Model
Power supply
~ 230V 50Hz
HWD-WE-
220S(-K)
3N~ 400V 50Hz
• Check to ensure that existing installation (mains power switches, circuit breakers, wires, connectors and wire
terminals) already complies with the national and local regulations.
• The use of the DHW tank heater is disabled as factory setting. If it is desired to enable the DHW tank heater
operation during normal indoor unit operation, adjust the DSW4 pin 3 of the PCB1 to the ON position and use the
adequate protections.
4.2
System wiring diagram
Connect the units according to the following electric
diagram:
TB
:
Terminal board
CB
:
Circuit breaker
ELB
:
Earth leakage breaker
Earth
Earth
PMML0596 rev.0 - 04/2022
Operation mode
Without electric heaters
With electric heater
With DHW tank heater
With electric and DHW tank heaters
Without electric heaters
With electric heater
With DHW tank heater
With electric and DHW tank heaters
1,2
Operating Line
(Twisted shielded
pair cable or
shielded pair cable)
Outdoor unit
DC5V (Non-Pole
RASM-VRW1E
Transmission,
x
H-LINK system)
x
YUTAKI H Combi
Z
(Ω)
max
-
0.27
-
0.19
-
-
-
-
:
Field wiring
:
Field-supplied
:
Outdoor-Indoor communication
Outdoor unit
RASM-RW1E
x
Earth
x
YUTAKI H Combi
Earth
Status regarding compliance
with EN 61000-3-12
EN61000-3-2
EN61000-3-12
EN61000-3-2
EN61000-3-12
EN61000-3-2
EN61000-3-12
EN61000-3-2
EN61000-3-12
Operating Line
(Twisted
shielded
pair cable or
shielded pair
cable)
DC5V
(Non-Pole
Transmission,
H-LINK
system)
EN
3