EAS ELECTRIC ETHKH10A Manual De Instrucciones página 103

8.3.1 Main control board of indoor unit
Order Port Code
1 POWER Port for power supply
CN21
2 S3 / Rotary dip switch
3 DIS1 Digital display
/
4 CN5 GND Port for ground
5
CN28 PUMP Port for variable speed pump power input
6 Port for IC programming
CN25 DEBUG
Dip switch
/
7
S1,S2,S4,SW9
8 CN4 USB Port for USB programming
9 Port for flow switch
CN8 FS
Port for temperature sensor of refrigerant liquid
T2
side temperature of indoor unit (heating mode)
Port for temperature sensor of refrigerant gas
T2B
side temperature of indoor unit (cooling mode)
Port for temperature sensor of inlet water
TW_in
CN6
10
temperature of plate heat exchanger
Port for temperature sensor of outlet water
TW_out
temperature of plate heat exchanger
Port for temperature sensor of final outlet
T1
water temperature of indoor unit
Port for upper temp. sensor of balance tank
11 CN24 Tbt1
Port for lower temp. sensor of balance tank
Tbt2
12 CN16
13 CN13 T5 Port for domestic hot water tank temp. sensor
14 Port for zone 2 temp.sensor of outlet water
CN15
Tw2
15 CN18 Tsolar Port for solar panel temp. sensor
Port for variable speed pump communication
16 PUMP_BP
CN17
Control port for room thermostat (heating mode)
HT
17
CN31
COM Power port for room thermostat
CL Control port for room thermostat (cooling mode)
Port for smart grid (grid signal)
SG
CN35
18
Port for smart grid (photovoltaic signal)
EVU
Assembly unit Order Port Code
M1 M2
Port for remote switch
19
CN36
Port for temperature board
T1 T2
Communicate port between indoor unit and
20 CN19 P Q
outdoor unit
21 CN14 A B X Y E Port for communication with the wired controller
1 2 3 4 5 Port for communication with the wired controller
Communicate port between indoor unit and
22
CN30 6 7
outdoor unit
9 10 Port for Internal machine Parallel
26 30/31 32 Compressor run/Defrost run
23 Port for antifreeze E-heating tape(external)
CN7 25 29
Port for additional heat source
27 28
1 2 Input port for solar energy
3 4 15 Port for room thermostat
5 6 16 Port for SV1(3-way valve)
7 8 17
Port for SV2(3-way valve)
9 21 Port for zone 2 pump
10 22 Port for outside circulation pump
24 CN11
11 23 Port for solar energy pump
12 24 Port for DHW pipe pump
13 16 Control port for tank booster heater
14 17 Control port for internal backup heater 1
18 19 20 Port for SV3(3-way valve)
Feedback port for external temperature
25
CN2
TBH_FB
switch(shorted in default)
Feedback port for temperature switch
26 CN1 IBH1/2_FB
(shorted in default)
Control port for internal backup heater 1
IBH1
27 CN22 IBH2
Reserved
Control port for tank booster heater
TBH
28 CN41 HEAT8 Port for anti-freeze electric heating tape(internal)
29 CN40 HEAT7 Port for anti-freeze electric heating tape(internal)
30 CN42 HEAT6 Port for anti-freeze electric heating tape(internal)
31 CN29 HEAT5 Port for anti-freeze electric heating tape(internal)
IBH0 Port for backup heater
32 CN32
24
Assembly unit
V.2