Haier 1U48LP2VHA, 1U36LP2VHA, 1U24LP2VHA, AW36LP2VHA, AL24LP2VHA Service Manual

FlexFit PRO

SYJS-04-2017REV.B

Edition： 2017-04

FlexFit PRO

CONTENTS

Part 1 General Information .......................................................................................................................................1

1. Lineup ..................................................................................................................................................................2

2. Features ..............................................................................................................................................................3

Part 2 Indoor Unit Technical Overview - Wall Mount ..................................................................................

1.Components......................................................................................................................................................... 5

2.Testing.................................................................................................................................................................13

3.Error Codes.........................................................................................................................................................15

....................................................................................................................................................21

3. Dimensions ........................................................................................................................................................24

............................................................................................................................................. 25

5. Air Velocity and Temperatures ...........................................................................................................................26

6. Installation .........................................................................................................................................................30

Part 4 Indoor Units-Medium ESP Duct Type .........................................................................................................36

1. Features ............................................................................................................................................................37

....................................................................................................................................................38

3. Dimensions ........................................................................................................................................................41

.............................................................................................................................................43

5. Instalaltion .........................................................................................................................................................45

Part 5 Outdoor Units ...............................................................................................................................................51

....................................................................................................................................................50

2. Dimensions ........................................................................................................................................................53

3. Piping ...............................................................................................................................................................55

.............................................................................................................................................56

5. Installation .........................................................................................................................................................58

Part 6 Controls and Troubleshooting ....................................................................................................................63

1. Indoor Unit PCB ................................................................................................................................................64

2. Dip Switches ......................................................................................................................................................65

3. Outdoor Unit PCB ..............................................................................................................................................68

4. Error Codes .......................................................................................................................................................70

5. Error Code Analysis ...........................................................................................................................................83

6. Functions ...........................................................................................................................................................92

7. Controllers ......................................................................................................................................................104

Part 7 Appendix

1. Sensor Characteristics .................................................................................................................................104

.................. 5

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02.............................................................................................................................................................. serutaeF.1

FlexFit Pro

Part 1 General Information

Part 1 General Information .......................................................................................................................................1

1. Lineup ..................................................................................................................................................................2

2. Features ..............................................................................................................................................................3

3.Indoor Unit Technical Overview - Wall Mount .................................................................................................... 5

4.Components......................................................................................................................................................... 5

5.Testing.................................................................................................................................................................13

6.Error Codes.........................................................................................................................................................15

1

FlexFit Pro

1. Line up

Outdoor unit

Indoor unit High-Wall AW24LP2VHA

Model Apperance

1U24LP2VHA
1U36LP2VHA

1U48LP2VHA

Model Apperance

AW36LP2VHA

Model Apperance

AL24LP2VHA
AL36LP2VHA

4-Way Cassette

AL48LP2VHA

Indoor unit

AM24LP2VHA

Medium Esp Duct

AM36LP2VHA
AM48LP2VHA

Model Apperance

Panel 4-Way Cassette PB-950KB

2

FlexFit Pro

2. Features

Double side 4 handles

Two handles on each side make installation a breeze.

Stylish Design

Built-in service valves mean a clean looking exterior and
allow for a 4-direction line set connection.

Easy Installation

"888" Digital Display

Easy for technicians to check running parameters and error
codes.

3

FlexFit Pro

Low Sound Level

Super big inlet grille

Inlet grille is 23% larger than conventional models, which
means quiet operation and lower air speed.

New Fan

Larger size and aerodynamic design mean low sound and

less resistance.

Comfort

360° air supply

360 degree air pattern eliminates dead air spots and

Easy Installation

Convenient Grille Clip

Holds grille in place during installation to save time and
effort.

4 way air ow

Unique 360° air ow design

4

I

1U24LP2VHA 1U36LP2VHA

V/Hz/-

Minimum Circuit Amp A 21 26

Rated Capacity Btu/hr

24000

35000

Rated Power Input W 2,182 3,500

17.0

17.0

Btu/hr

Dimension: Height in (mm)

38 (965) 38 (965)

Indoor Sound Level dB

CFM

in (mm)

Max. External Static Pressure in.W.G(Pa) NA NA

Max. Drain-Lift height in(mm) NA NA

Factory Charge Oz 88.2 88.2

Ft / m

FlexFit Pro

Model Name and

Operation Range

Power Supply

Cooling

Heating

Outdoor Unit

System Type Wall Mount Wall Mount

Outdoor

Indoor AW24LP2VH* AW36LP2VH*

Voltage, Cycle, Phase

Wire Size between ID and OD 14/4 AWG Stranded 14/4 AWG Stranded

Maximum Fuse Size A 25 30

Capacity Range Btu/hr 6800-30700 8500-37500

SEER

EER

Moisture Removal Pt./h 4.10 5.1

Rate Heating Capacity 47°F

Heating Capacity Range Btu/hr 6800-34100 8500-41000

Rated Power Input W 2700 3700

HSPF 10.0 10.0

Outdoor Noise Level dB 47 52

Dimension: Width in (mm) 37 3/8(950) 37 3/8(950)

Dimension: Depth in (mm) 14 5/8(370) 14 5/8(370)

208-230/60/1 208-230/60/1

11.0

27000 37000

10.0

Indoor Unit

Refrigerate Line

Weight (Ship/Net)- lbs (kg) 202.8/ 176.4 (92/80) 207.2/180.7 (94/82)

(Turbo/High/Med/Low/Quiet)

Airflow (Turbo/High/Med/Low/Quiet)

Dimension: Height in (mm) 13 1/4(336) 14 3/8(365)

Dimension: Width in (mm) 43 7/8(1115) 51 13/16(1316)

Dimension: Depth

Drainpipe Size O.D. in NA NA

Internal Condensate Pump NA NA

Grill Model NA NA

Grill Dimension: H×W×D in (mm) NA NA

Weight (Ship/Net)- lbs (kg) 45.4/37.5(20.6/17) 55.1/46.3(25.5/21)

Connections Flare Flare

Liquid/Suction O.D. in 3/8 5/8 3/8 5/8

Maximum Line Length

Maximum Height Ft / m 100/30 100/30

49/47/42/36/34 50/48/44/38/36

710/650/560/440/410 720/660/570/450/420

9 9/16(243) 10 7/8(275)

165/50 165/50

5

FlexFit Pro

6

AW24LP2VHA
AW36LP2VHA

10

11

12

13

141516

17

18

FlexFit Pro

Part 3 Indoor Units--4-Way Cassette Type

1. Features ..............................................................................................................................................................20

......................................................................................................................................................21

3. Dimensions ........................................................................................................................................................24

.............................................................................................................................................25

5. Air Velocity and Temperatures ...........................................................................................................................26

6. Installation .........................................................................................................................................................30

19

FlexFit Pro

1. Feature

Stylish Grille Design

"Spiral" panel

Spiral panel concept is a Haier exclusive.

Full-closing Panel

Flap is hidden during the off cycle for an attractive look and
low energy loss.

ABS Panels

Bright white color won't yellow over time.

New designed fan

This is already in the OD section. Eliminate or change
picture and text.

Individual Flaps

Control all four independently to provide maximum comfort
and air movement.

Adiustable

Comrner installation solution

Comfort solution

20

FlexFit Pro

2. Specications

System AL24LP

Model Name

Cooling

Moisture Removal Pt./h 5.1

Rate Heating Capacity 47°F Btu/hr 27300

Heating

Operating Range

Power Supply Voltage, Cycle, Phase V/Hz/- 208-230/60/1

Outdoor Unit

Motor Speed (Turbo/High/Med/Low/Quiet) RPM 500/400/300/250

Indoor Sound Level dB (Turbo/High/Med/Low/Quiet) 36/33/29/26

Indoor Unit

Refrigerant Lines

Heating Capacity Range Btu/hr 6800-30500

Minimum Circuit Amp A 21.0

Outdoor Fan Speed RPM 750/700/650/600/500/400/300

Outdoor Noise Level dB 47

Dimension: Height in (mm) 38 (965)

Dimension: Width in (mm) 37 3/8(950)

Dimension: Depth in (mm) 14 5/8(370)

Weight (Ship/Net)- lbs (kg) 202.8/ 176.4 (92/80)

Airow (Turbo/High/Med/Low/Quiet) CFM 740/630/480/400

Dimension: Height in (mm) 9 5/8 (246)

Dimension: Width in (mm) 33 1/8(840)

Dimension: Depth in (mm) 33 1/8(840)

Max. External Static Pressure in.W.G(Pa) NA

Internal Condensate Pump Standard

Max. Drain-Lift height in(mm) 39 3/8 (1000)

Grill Dimension: Height in (mm) 2 (50)

Grill Dimension: Width in (mm) 37 3/8 (950)

Grill Dimension: Depth in (mm) 37 3/8 (950)

Weight (Ship/Net)- lbs (kg) 79.4/68.3 (36/31)

Maximum Line Length Ft / m 165/50

Maximum Height Ft / m 100/30

Outdoor 1U24LP2VHA

Indoor AL24LP2VH*

Rated Capacity Btu/hr 24000

Capacity Range Btu/hr 6800-27000

Rated Power Input W 2,087

SEER 17

EER 11.5

Rated Power Input W 2,281

HSPF 10

Cooling °F(°C) 0~115F(-18-46C)*
Heating °F(°C) -4°F~75°F （-20-24

Compressor Type DC Inverter Driven Rotary

Maximum Fuse Size A 25.0

Fan Speed Stages 4 + Auto

Drainpipe Size O.D. in 1 1/4

Grill Model PB-950KB

Connections Flare

Liquid O.D. in 3/8

Suction O.D. in 5/8

Factory Charge Oz 88.2

℃）

21

FlexFit Pro

System AL36LP

Model Name

Cooling

Moisture Removal Pt./h 6.3

Rate Heating Capacity 47°F Btu/hr 36500

Heating

Operating Range

Power Supply Voltage, Cycle, Phase V/Hz/- 208-230/60/1

Outdoor Unit

Motor Speed (Turbo/High/Med/Low/Quiet) RPM

Indoor Sound Level dB (Turbo/High/Med/Low/Quiet)

Heating Capacity Range Btu/hr 8500-38500

Outdoor Fan Speed RPM 750/700/650/600/500/400/300

Outdoor Noise Level dB 52
Dimension: Height in (mm)
Dimension: Width in (mm) 37 3/8(950)

Dimension: Depth in (mm) 14 5/8(370)

Weight (Ship/Net)- lbs (kg) 207.2/180.7 (94/82)

Airow (Turbo/High/Med/Low/Quiet) CFM

Outdoor

Indoor AL36LP2VH*

Rated Capacity Btu/hr 35000

Capacity Range Btu/hr 8500-37500

Rated Power Input W 3,500

SEER 17

EER 10

Rated Power Input W 3,253

HSPF 10.3

Cooling °F(°C) 0~115F(-18-46C)*
Heating °F(°C)

Compressor Type DC Inverter Driven Rotary

Maximum Fuse Size A 30

Minimum Circuit Amp A 26.0

Fan Speed Stages 4 + Auto

1U36LP2VHA

-4°F~75°F （-20-24

38 (965)

990/900/776/700

650/550/450/400

45/42/38/34

℃）

Indoor Unit

Refrigerant Lines

Dimension: Height in (mm) 9 5/8 (246)
Dimension: Width in (mm) 33 1/8(840)

Dimension: Depth in (mm) 33 1/8(840)

Max. External Static Pressure in.W.G(Pa) NA

Drainpipe Size O.D. in 1 1/4

Internal Condensate Pump Standard

Max. Drain-Lift height in(mm) 39 3/8 (1000)

Grill Model

Grill Dimension: Height in (mm)

Grill Dimension: Width in (mm)
Grill Dimension: Depth in (mm)

Weight (Ship/Net)- lbs (kg) 79.4/68.3 (36/31)

Connections Flare

Liquid O.D. in 3/8

Suction O.D. in 5/8

Factory Charge Oz 88.2

Maximum Line Length Ft / m 165/50

Maximum Height Ft / m 100/30

PB-950KB

2 (50)
37 3/8 (950)
37 3/8 (950)

22

FlexFit Pro

System AL48LP

Model Name

Cooling

Rate Heating Capacity 47°F Btu/hr 49000

Heating

Operating Range

Power Supply Voltage, Cycle, Phase V/Hz/- 208-230/60/1

Outdoor Unit

Indoor Sound Level dB (Turbo/High/Med/Low/Quiet) 41/36/33/31

Indoor Unit

Heating Capacity Range Btu/hr 13600-61000

Outdoor Fan Speed RPM 750/700/650/600/500/400/300

Dimension: Height in (mm) 53 1/8 (1350)
Dimension: Width in (mm) 37 3/8(950)

Dimension: Depth in (mm) 14 5/8(370)

Weight (Ship/Net)- lbs (kg) 260.1/231.5 (118/105)

Airow (Turbo/High/Med/Low/Quiet) CFM 1147/941/847/705

Motor Speed (Turbo/High/Med/Low/Quiet) RPM 750/650/500/400

Dimension: Height in (mm) 11 3/8 (288)
Dimension: Width in (mm) 33 1/8(840)

Dimension: Depth in (mm) 33 1/8(840)

Max. External Static Pressure in.W.G(Pa) NA

Internal Condensate Pump Standard

Max. Drain-Lift height in(mm) 39 3/8 (1000)

Grill Dimension: Height in (mm) 2 (50)

Grill Dimension: Width in (mm) 37 3/8 (950)
Grill Dimension: Depth in (mm) 37 3/8 (950)

Weight (Ship/Net)- lbs (kg) 83.8/70.5 (38/32)

Refrigerant Lines

Maximum Line Length Ft / m 230/75

Outdoor 1U48LP2VHA

Indoor AL48LP2VH*

Rated Capacity Btu/hr 45000

Capacity Range Btu/hr 11900-52800

Rated Power Input W 4,286

SEER 17

EER 10.5

Moisture Removal Pt./h 11.0

Rated Power Input W 4,533

HSPF 10.5

Cooling °F(°C) 0~115F(-18-46C)*
Heating °F(°C) -4°F~75°F （-20-24

Compressor Type DC Inverter Driven Rotary

Maximum Fuse Size A 40

Minimum Circuit Amp A 35.0

Outdoor Noise Level dB 53

Fan Speed Stages 4 + Auto

Drainpipe Size O.D. in 1 1/4

Grill Model PB-950KB

Connections Flare

Liquid O.D. in 3/8

Suction O.D. in 5/8

Factory Charge Oz 131

Maximum Height Ft / m 100/30

℃）

23

FlexFit Pro

3. Dimensions

AL24LP2VHA AL36LP2VHA

30 (760)

AL48LP2VHA

30(760)

779

779

10 3/8(264)

1 7/8

(47)

11 5/8(288)

37 3/8(950)

33(840)

59

37 3/8(950)

37 3/8(950)

33(840)

59

1 7/8

(47)

37 3/8(950)

24

FlexFit Pro

4. PCB Conguration

0150516956U

FRESH AIR MOTOR /

EXTERNAL ALARM OUTPUT

(FUNCTION IN FUTURE )

( Contact rating_230VAC,3A)

M

M

DC FAN MOTOR

.

ROOM

TEMP.

SENSOR

.

TEMP

PIPING

SENSOR

FLOAT

SWITCH

ROOM CARD

DRAIN

PUMP

M

CN10

CN9

CH1

CN6

CN3

CN19

CN1

ELECTRIC HEATING TERMINAL

RATING_230VAC,3A

CONNECT TO THIRD PARTY RELAY

CN8

INDOOR UNIT

MAIN CONTROL

87654321

OFF

87654321

OFF

CN11

CN26

BA

C

A

ELECTRIC HEATING

THERMOSTAT / FUSE

CN15

FUSE

BOARD

SW1(BM1)

ON

SW3(BM3)

ON

B

L

N

CN16

T5A 250VAC

CN13

CN14

CN4

Y/G

RD

BLK

WHT

LOUVER STEP

M

M

LOUVER

3
2
1

MOTOR2

M

CN2

CN6

.

CN4

STEP MOTOR4

LOUVER STEP

MOTOR1

CN1

CN7

CN3

M

LOUVER

STEP MOTOR3

Y/G:YELLOW/GREEN

RD:RED WHT:WHITE

TO OUT DOOR UNIT

INDOOR UNIT

TERMINAL BLOCK

INTELLIGENT

I.R .RECEIVER

(WITH DIGITAL

DISPLAY)

BLK:BLACK

MOVE EYE DEVICE

CAPACITY

(BTU/H)

******************

I.R .RECEIVER :

INFRARED REMOTE

RECEIVER .

TEMP.:TEMPERATURE

(SLIM)

TYPE DEFINE

Cassette

OFF

SW1-8

OFF

SW1-7

OFF

SW1-6

COOL HEAT

COOL ONLY

HEAT PUMP

24000

SW1-5

Room card

SW1-4

OFF

ON

unavailable

available

ON

OFF

36000

42000

48000

ON

ON

OFF

SW1-3

C

B

A

WIRED

CONTROLLER

WiFi

MODULE

NOTE:

1.DASHED PARTS ARE OPTIONAL.

2.USER SHOULD NOT CHANGE THE

DIP SWITCH SW1 SW3 WITHOUT GUIDENCE

SW1-2

3.SW3-5->SW3-8 ARE USED FOR WIRED CONTROLLER

ADRESS SELECT. SW3-1->SW3-4 ARE RESERVED.

SW1-1

ON

ON

OFF ON

ON

ON

ON

ON

ON

25

FlexFit Pro

5. Air velocity and temperature distribution

AL24/36LP2VHA:

a. Cooling and air velocity

Cooling
33 degree ap angle
Air velocity distribution

2.5m/s

2.5m/s

8.9ft

6.6ft

1.5m/s

0.5m/s

13ft 13ft

9.8ft 6.6ft 3.3ft

b. Cooling and temperatures

Cooling
33 degree ap angle
Temperature distribution

1.5m/s

3.3ft

0.5m/s

0ft

0ft 3.3ft 6.6ft

62.6

O

F

O

68

F

O

F

62.6

O

68

9.8ft

F

8.9ft

6.6ft

3.3ft

O

72

F

13ft 13ft

9.8ft 6.6ft 3.3ft

0ft 3.3ft 6.6ft

26

O

F

72

9.8ft

0ft

FlexFit Pro

c. Heating and air velocity

Heating
60 degree ap angle
Air velocity distribution

8.9ft

6.6ft

2.0m/s

1.0m/s

13ft

9.8ft 6.6ft 3.3ft

d. Heating/Temperature distribution

Heating

60 degree ap angle

Temperature distribution

3.0m/s

3.0m/s

2.0m/s

1.0m/s

0ft 3.3ft 6.6ft

9.8ft

13ft

3.3ft

0ft

8.9ft

13ft

6.6ft

O

F

90

O

84

F

O

79

F

9.8ft 6.6ft 3.3ft

0ft 3.3ft 6.6ft

O

90

F

O

F

84

3.3ft

O

79

F

0ft

9.8ft

13ft

27

FlexFit Pro

AL48LP2VHA

a. Cooling and air velocity
Cooling

33 degree ap angle
Air velocity distribution

2.5m/s

8.9ft

6.6ft

3.0m/s

1.5m/s

0.5m/s

13ft 13ft

0ft

3.3ft

6.6ft

2.0m/s

1.0m/s

9.8ft9.8ft 6.6ft 3.3ft

b. Cooling and temperatures
Cooling

33 degree ap angle
Temperature distribution

64.4

O

F

O

70

F

O

73

F

64.4

O

F

O

F

70

O

F

73

3.3ft

0ft

8.9ft

6.6ft

3.3ft

13ft 13ft

0ft

3.3ft

6.6ft

28

9.8ft9.8ft 6.6ft 3.3ft

0ft