EAS ELECTRIC ETHKH160 Manual De Instrucciones página 79

NOTE: Wiring of the 3-way valve is different for NC (normal close)
and NO (normal open). Before wiring, read the Installation & Owner's
manual for the 3-way valve carefully and install the valve as should in
the picture. Make sure to connect it to the correct terminal numbers.
Procedure
1. Connect the cable to the appropriate terminals as shown in the
picture
2. Fix the cable with cable ties to the cable tie mountings to ensure
stress relief.
For remote shutdown:
SWITCH SIGNAL INPUT
9 10
M1
CLOSE: SHUT DOWN
For DHW pipe pump P_d and mixing pump P_c:
17
16
P_c N
MIXING PUMP
CONTROL SIGNAL OUTPUT
Voltage
Maximum running current
Wiring size
Procedure
1. Connect the cable to the appropriate terminals as shown in the
picture.
2. Fix the cable with cable ties to the cable tie mountings to ensure
stress relief
For room thermostat:
Extermal ON/OFF thermostat
14 3 14 3
13 13 13 13
H H L1 C L1
H H
HEAT
COOL
POWER IN
RT RT
Method A: Method B:
Extermal thermostat
3 3 15 15 3 3 15 15
13 13 13 13
C C C C
H H N N H H N N
COOL
HEAT
L L
RT N N RT
Method A: Method B:
M2
30
29
P_d N
DHW PIPE PUMP
CONTROL SIGNAL OUTPUT
220VAC-240VAC
0.2A
0.75mm 2
14 3
13 13
C L1 C
H H
POWER IN POWER IN POWER IN
RT RT
Method C:
3 3 15 15
13 13
C C
H H N N
L L L L L
N N RT N RT N N
Method C:
Voltage
Maximum running current
Wiring size
There are three methods for connecting the thermostat cable (as
described in the picture above) and it depends on the application.
If method "A" is selected, the space operation mode can be selected
on the room thermostat. If method "B" is selected, the room
thermostat is used as a switch. When the room temperature reaches
the target temperature, the units will turn off, while the space operation
mode can only be selected on the user interface.
If method "C" is selected, application 6 (refer to "Application 6")
should be applied. Any room thermostat sent ON signal to the unit
will the unit turn on. Both room thermostat sent OFF signals to the
unit will the unit turn off. The operation mode can be set in the user
interface.
When the room thermostat is installed the ON/OFF of the unit is
decided by the temperature detected by the thermostat, the user
interface can only set the target temperature.
NOTE:
1.The wiring of the thermostat should correspond to the settings
of the user interface. Refer to "Field setting/Room Thermostat".
2. Power supply of machine and room thermostat must be
connected to the same Neutral Line and (A) Phase Line.
Procedure
1. Connect the cable to the appropriate terminals as shown on the
picture
2. Fix the cable with cable ties to the cable tie mountings to ensure
stress relief
Procedure
1. Connect the cable to the appropriate terminals as shown on the
picture
2. Fix the cable with cable ties to the cable tie mountings to ensure
strain relief
For boiler and outside circulating pump P_o:
8 9
P_o N
OUTSIDE CIRCULATING PUMP
CONTROL SIGNAL OUTPUT
Voltage
Maximum running current
Wiring size
27
220VAC-240VAC
0.2A
0.75mm
2
25 26
AHS1 AHS2
ADDITIONAL HEAT SOURCE
CONTROL SIGNAL OUTPUT
NOTE
The unit only sends an
ON/OFF signal to the boiler.
220VAC-240VAC
0.2A
0.75mm 2
V.1