
Wiring diagrams
Models: WHU09CTA21S, WHU12CTA21S, WHU18CTA21S,
WHU24CTA21S, and WHU36CTA21S
Fan motor
1
2
3
4
5
Pin No. Terminal
code
Vm
GND
Vcc
Function of terminal
Control power voltage input
GND
Motor power voltage input
Lead wire
color
7
FG
Revolution pulse output
Blue
White
Black
6
Vsp
Speed control voltage input
Yellow
Red
Main control board
Water level switch
CN7
Display board
Room temperature sensor
Coil temperature sensor
10
CN1
CN11
ROOM
CN12
COIL
CN6
CN19
CN17
VDC (C15.6)
GND (C15.4)
VCC (C15.3)
Vsp (C15.2)
FB (C15.1)
VDD
GND
VCC
Vsp
FG
CN15
DC FAN
CN2 (LIN)
DC motor
BRN
Terminal panel To outdoor unit
USE COPPER SUPPLY WIRES
L
N
SI
BLU
RED
CN3 (NIN)
CN3 (SI)
CN18 (EARTH)
SWING
CN4
HEAT
CN5
STEP
CN8
5
CN10
Step motor1
Step motor2
Step motor3
Step motor4
PM
OUT INPUT
ON/OFF
output
CN16
ON/OFF input or Fire input
Door input
CN9
PUMP
YEL/GRN
YEL/GRN
Pump motor Motor
WATER
3
4
3
4
1
2
1
2
3
4
3
4
1
2
1
2
2
1
2
1
4
3
4
3
Thermistor
( Pipe temp. )
15 k
6.5 k
4.5 k
1.3 V
2.2 V
2.7 V
20
30
0
68 F
F
86 F
32
Temperature
Thermistor
( Room temp. )
15 k
6.5 k
4.5 k
1.3 V
2.2 V
2.7 V
-
27
-
Содержание WHU09CTA21S
Страница 55: ...Cassette grille Optional parts WH AG4CT1 1 2 3 4 5 54 Parts list ...
Страница 57: ...Cassette grille Optional parts WH AG4CT2 1 2 3 4 5 6 7 8 9 56 ...
Страница 59: ...Indoor unit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 WHU09CTA21S 58 ...
Страница 61: ... 60 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Indoor unit WHU12CTA21S ...
Страница 63: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 62 Indoor unit WHU18CTA21S ...
Страница 65: ... 64 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 Indoor unit WHU24CTA21S ...
Страница 67: ...2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 66 Indoor unit WHU36CTA21S ...
Страница 69: ...Outdoor unit WHU09SZA21S 68 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 ...
Страница 70: ... Refrigerant cycle 69 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ...
Страница 71: ... Electrical parts 70 32 33 34 35 36 37 38 39 40 31 41 ...
Страница 73: ...Outdoor unit WHU12SZA21S 72 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 ...
Страница 74: ... Refrigerant cycle 73 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ...
Страница 75: ... Electrical parts 74 32 33 34 35 36 37 38 39 40 31 41 ...
Страница 77: ...Outdoor unit WHU18SZA21S 76 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 ...
Страница 78: ... Refrigerant cycle 77 17 18 19 20 21 22 23 24 25 26 27 28 29 30 35 31 34 48 32 33 ...
Страница 79: ... Electrical parts 78 36 37 38 39 40 41 42 43 45 46 47 44 ...
Страница 81: ...Outdoor unit WHU24SZA21S 80 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 1 ...
Страница 82: ... Refrigerant cycle 22 23 24 25 26 27 28 29 30 32 33 34 35 36 31 81 37 ...
Страница 83: ... Electrical parts 82 38 39 40 42 43 44 45 46 47 48 49 41 ...
Страница 85: ...Outdoor unit WHU36SZA21S 84 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 ...
Страница 86: ... Refrigerant cycle 85 17 18 19 20 21 22 23 24 25 26 27 28 29 30 32 33 31 ...
Страница 87: ... Electrical parts 86 34 35 36 37 38 39 40 42 43 44 45 46 47 48 49 41 ...
Страница 90: ......