IOM SYSHP MINI HYDRO

24
8.3.1 Main control board of indoor unit
3029
32
25 26 27 28
31
7
1211
109
18
8
7
5
2322 24
1 2
13
3
4
6
2014 15 17 1916 21
6 8 9
10
5
4321
CN4
CN22
CN5
S3
DIS1
CN24
CN1
CN2
CN6
CN8
CN13
CN15
CN16
CN18
CN28
S2
CN42
CN21
S1
S4
CN11 CN7
CN17
CN19
CN30
CN35
CN14
CN31
CN36
1
4
5
2 3
22
CN25
6
CN29
CN40
CN41
9
10
11
12
13
14
15
17
18
19
7 8
16
20
21
23
24
25
26
27
28
29
30
31
Assembly unit Assembly unitOrder Order
1
2
3
4
5
8
10
16
17
19
20
21
22
23
24
Port for power supply
Digital display
Port for ground
Port for variable speed pump power input
Port for temperature sensor of refrigerant liquid
side temperature of indoor unit (heating mode)
Port for temperature sensor of refrigerant gas
side temperature of indoor unit (cooling mode)
Port for thermostat transfer board
Communicate port between indoor unit and
outdoor unit
Port for antifreeze E-heating tape(external)
Port for SV2(3-way valve)
Port for zone 2 pump
Port for outside circulation pump
Feedback port for external temperature
switch(shorted in default)
Feedback port for temperature switch
(shorted in default)
Reserved
Control port for tank booster heater
6
25
26
27
28
Port for temperature sensor of outlet water
temperature of plate heat exchanger
Port for temperature sensor of inlet water
temperature of plate heat exchanger
Port for temperature sensor of final outlet
water temperature of indoor unit
Dip switch
Port for USB programming
Port for flow switch
Port for IC programming
Rotary dip switch
9
11
Port for upper temp. sensor of balance tank
12
Port for lower temp. sensor of balance tank
13
Port for domestic hot water tank temp. sensor
14 Port for zone 2 temp.sensor of outlet water
Port for solar panel temp. sensor
Port for variable speed pump communication
Control port for room thermostat (heating mode)
Power port for room thermostat
Control port for room thermostat (cooling mode)
18
Port for smart grid (photovoltaic signal)
Port for smart grid (grid signal)
Port for solar energy pump
Port for DHW pipe pump
Control port for tank booster heater
Control port for internal backup heater 1
Port for SV3(3-way valve)
Control port for internal backup heater 1
29
30
31
Port for anti-freeze electric heating tape(internal)
Port for anti-freeze electric heating tape(internal)
Port for anti-freeze electric heating tape(internal)
Port for anti-freeze electric heating tape(internal)
32
CN21
POWER
S3
/
DIS1
CN5
GND
CN28
PUMP
CN25 DEBUG
CN4 USB
FS
T2
T2B
TW_in
TW_out
T1
CN6
CN19
CN14
27 28
1 2
3 4 15
5 6 16
7 8 17
9 21
10 22
IBH1/2_FB
IBH1
IBH2
TBH
TBH_FB
25 29
CN7
CN11
CN2
CN1
CN22
Port Port
Code Code
Port for communication with the wired controller
Port for Internal machine Parallel
Compressor run/Defrost run
Port for additional heat source
Input port for solar energy
Port for room thermostat
Port for SV1(3-way valve)
/
7
S1,S2,S4,SW9 /
CN8
CN24 Tbt1
CN16
Tbt2
CN13
T5
CN15
Tw2
15 CN18 Tsolar
CN17
PUMP_BP
CN31
HT
COM
CL
CN35
SG
EVU
CN36
M1 M2
Port for remote switch
T1 T2
P Q
A B X Y E
CN30
1 2 3 4 5 Port for communication with the wired controller
6 7
Communicate port between indoor unit and
outdoor unit
9 10
26 30/31 32
11 23
12 24
13 16
14 17
18 19 20
CN41
CN40
CN42
CN29
HEAT8
HEAT7
HEAT6
HEAT5
CN3232
SW9
CN32
IBH0 Port for backup heater