Haier AU52NFIAKA [104/139] Resumeable heat

Haier AU52NFIAKA [104/139] Resumeable heat

Commercial Air Conditioner

Model: AU28/342FHAIA,

AU522FIAKA, AU52,60NFIAKA

-100-

gas pipe temp. sensor

indoor fan motor

fan

capacitor

CN14

3

2

1

4

CN13

3

6

5

4

7

2

1

10

8

9

1

2

4

3

B

A

5

4 3 2

6

7

1

10

9

7

8

2

3

1

4

6

5

liquid pipe temp. sensor

receive display

CN5

CN1

CN10

CN20

CN18

CN25

1PH.220-230V~.50Hz

Indoor unit wiring diagram

electronic

expansion valve

box power supply

and communication

R

R

CN1

2

1

ambient temp.

sensor

C D

2

1

wired controller

NOTE：

Must connect electronic expansion valve box

power and communication from corresponding

indoor,wiring sequence must correspond with

the label respectively,other wise, will cause

PCB of indoor and electronic expansion valve

box not work and damaged.

M

electronic

expansion valve

CN6

42 3

1

5 6

2

3

1

CN11

float switch

1

3 2

negative ion generator or high

voltage accumulator

23

1 3 2

1

earthing

connector

pump motor

swing motor

CN19

CN22

only applicable for unit with

auxiliary electric heater

CN4

CN7

CN12

resumeable heat

protector70

10A/250VAC

auxiliary heater

FUSE

T15A/250VAC

About control board outer connector

indoor power

outdoor

communication

SW1

CN2

LED1LED2LED3

emergency switch(ON/OFF)

SW1

indicator power green

LED1

LED2

indicator timer yellow

indicator running red

LED3

B:Black

BL:Blue

BR:Brown

R:Red

W:White

Y/G:Yellow/Green

0010577030

2

1

choise of remote

cotroller type

choise of wire

controller type

water temperate sensor

Only used for inbuilt valve type

1

2

CN24

sw01

Indoor control board

unit code setting

sw03

sw02

CN16

serial

1

2

FUSE

T3.15A/250VAC

b

a

c

In the diagram,gas pipe temp. sensor,liquid pipe temp.

sensor,indoor fan motor are necessary parts;

Wired

expansion

are parts

(combined usage) .

Auxiliary electric

high voltage accumulator

comfort.

combination

Wired controller and receive display

only can choose one

The setting of SW01,SW02 and SW03 :

1.The former three bits of SW01 are used to set unit

number,which are operated by the installer on field .

2.The fourth bit of SW01 is used to choose different

indoor fan speed in heating mode."ON"means that fan

speed can be set as middle and low level,"OFF"means

that fan speed can be set as high,middle and low level.

3.The first bit of SW02 and SW03 is used to choose

wired control type or remote control type.

equipped with wired controller

can make remote

operation on wired controller with remote controller such

as YR-H71 .

"ON"means that the unit with wired controller(other parts

are as the same as remote control unit). And "OFF"is

remote controller.

4.The second bit of SW02 is used to choose built-in or

outside electronic expansion valve setting .

Attentions:

electronic expansion valve communication,and the

electronic expansion valve box(MP3A) control indoor

refrigerant flow.

CN6 is connected with

electronic expansion valve and indoor unit control

refrigerant flow itself.

CN25 is connected with

"OFF"means outside type:

"ON"means built-in type :

heater,negative ion generator,

are optional parts for health and

usage arbitrarily).

expansion valve setting .

outside electronic

Used for

E0

E1

E3

E4

E5

E9

E8

E7

E6

Float switch abnormal or water temperature sensor abnormal

Outdoor unit failure

Liquid pipe temperature sensor failure

Gas pipe temperature sensor failure

Repeated indoor unit number (E5 flashes for a while and then turn to E9)

EEPROM abnormal

Communication abnormal with EEV box

Communication abnormal between wired controller and indoor PCB

Communication abnormal between indoor and outdoor.

at will.

M

1.When the TES unit is used,the second bit of SW03 is

OFF and CN9 is connected with the water temp

.sensor ;otherwise ,the second bit of SW03 is ON and

without water temp.sensor .

2.The float switch and the water pump are optional in

the future .when the unit is with water pump,the float

switch should be connected or else should be short

connected with a jumper.

one-off heat protector

105 20A/250VAC

M

℃，

℃，

M

swing motor, indoor

controller,receive display,electronic

valve and

the model

Indoor temperate

sensor

temp. sensor

matched with

AE**2F A A wiring diagram: L I

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