51
GB
GB
10. WIRING DIAGRAMS
H.P.SW.
EXP.V.
28
25
21
13
14
11
22
29
8
9
10
TRANSFORMER
Top
Down
PUMP
U
V
W
W
V
U
R
W
B
OR
Y
Y
OR
OHR
L
N
(250V T5A)
GR
R
G/Y
W
R
B
B
GR
GR
BL
Y
GR
B
W
B
B
3
2
1
(250V T3.15A)
(250V T3.15A)
R
R
B
B
B
B
B
W
W
B
BL
BL
W
B
30
44
32
40
35
33
SW
5
SW
6
SW
7
31
42
(250V T10A)
41
43
39
BR
GR
BL
Y
OR
R
B
DO
DO
DO
DO
DO
N
DO
DO
6
6
1
2
3
4
4
W
BR
GR
B
BL
W
Y
R
OR
MODO SW.
DISPLAY
RESET SW.
POMPA SW.
SENSOR (Discharge temperature)
SENSOR (Intake temperature)
4-way valve
Resistance defrost
Tank resistance
Compressor
Reactor
FUSE
Reactor
Motor Fan
Motor Fan
SENSOR Defrost
temperature
FUSE
Morsettiera
Linea elettrica
SENSOR
External Air
SENSOR
W
ater inlet
SENSOR
Oultlet water
FUSE
G BR BL
Wire colors
: Nero : Bianco : Rosso
B W R
: Grigio : Arancione : Giallo
GR OR Y
: Verde : Marrone : Blu
FUSE
Electrical Shock !
ATTENTION !
Connect terminals pressing the lever locking and pull
Be careful when making the electrical connections!
• Do not touch electrical parts, can cause electrical shock even if the circuit is switched off.
• Before making any maintenance be sure to wait at least 5 minutes after removing the power the power supply and check that the voltage of the pump connector 13 (between black and white + -) is less than 10 volts.
• Do not touch any part of the circuit as it has high voltage to ground.
• Be careful not to damage the cable insulation when tightening the screws as exposed wires can cause shock or malfunction.
How to connect self-locking terminals
Lever
Electrical Shock !
ATTENTION !
Back side of control
PCB TERMINAL BLOCK
PCB MAIN
A
1
2
3
4
5
6
Temp. W
ater
Supply System
Outdoor Temp.
Sanitar
y T
ank
W
ater Sensor
IN
COM
12V
7
8
9
Dew Point Sensor
Remote On/Off
10
11
Night Mode
12
Remote Cool/Heat
13
14
+
Set Point 2
-
Out Signal 0-10V
26
27
Power Supply 24V 3V
A
C
D
E
Room Thermostat
Elec. heat Sanitar
y
Pump 1
L
K
J
F
Input Pump1-2
Ext. Heat Source
L
I
Out Pump 2
H
G
3W
. V
. Sanitar
y
Dehumidifier
-
+
G
12V
Sig.
GND
LAN
RS485
Model EH1614DC, EH1314DC
