Haier AC-8888-20 User manual

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HAIER
CASSETTE TYPE
AIR CONDITIONER
SERVICE MANUAL
PART # AC-8888-20
HAIER AMERICA TRADING, LLC
www.haier.com

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Table Of Contents
1. Product’s Code Explanation and Series Introduction 3
2. Product’s Characteristics 4
3. Product’s Technical Parameter 6
4. Product’s Specification 25
5. Name, Size and Function Of Major Components and Accessories 30
6. Usage and Setting Of Remote Controller 34
7. Introduction of Electric Control Functions 41
8. Electric Diagram 49
9. Diagnostic of Abnormal Working Conditions 52
10. System Flow Chart 57

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b. Table 1
HAIER produces the following cassette type air conditioners - Classified by
control mode:
1) Remote control type:
AB42NACABA+AU42NAIABA (HBU-42HC03); AB42NACMBA+AU42NAIMAA (HBU-
42CC03)
AB282ACABA+AU282AHAAA (HBU-28HC03); AB282ACMBA+AU282AHMAA (HBU-
28CC03)
AB282ACBAA+AU282AHBAA (HBU-28HA03/R1); AB42NACBAA+AU42NAIBAA
(HBU-42HA03/R1)
Indoor conditions Outdoor conditions
No. Operation conditions Temperature
(°F) Humidity Temperature (°F) Humidity
1 Nominal cooling DB: 27 WB: 19 DB: 35 WB: 24
2 Nominal heating DB: 20 WB: 15 DB: 7 WB: 6
1. Product’s Code Explanation and Series Introduction

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2) Wire control type:
B42NACAAA+AU42NAIABA (HBU-42HA03); AB42NACMAA+AU42NAIMAA (HBU-
42CA03)
AB282ACAAA+AU282AHAAA (HBU-28HA03); AB282ACMAA+AU282AHMAA (HBU-
28CA03)
Classified by refrigerant
1) Taking R22 as refrigerant: AB42IACMAA+AU42IAIMAA (HBU-42C13)
AB42NACAAA+AU42NAIABA (HBU-42HA03); AB42NACMAA+AU42NAIMAA)(HBU-
42CA03)
AB282ACAAA+AU282AHAAA (HBU-28HA03); AB282ACMAA+AU282AHMAA (HBU-
28CA03)
AB42NACABA+AU42NAIABA (HBU-42HC03); AB42NACMBA+AU42NAIMAA (HBU-
42CC03)
AB282ACABA+AU282AHAAA (HBU-28HC03); AB282ACMBA+AU282AHMAA (HBU-
28CC03)
2) Taking R407C as refrigerant:
AB2821) Taking R22 as refrigerant: AB42IACMAA+AU42IAIMAA (HBU-42C13)
AB42NACAAA+AU42NAIABA (HBU-42HA03); AB42NACMAA+AU42NAIMAA)(HBU-
42CA03)
AB282ACAAA+AU282AHAAA (HBU-28HA03); AB282ACMAA+AU282AHMAA (HBU-
28CA03)
AB42NACABA+AU42NAIABA (HBU-42HC03); AB42NACMBA+AU42NAIMAA (HBU-
42CC03)
AB282ACABA+AU282AHAAA (HBU-28HC03); AB282ACMBA+AU282AHMAA (HBU-
28CC03)
Enhanced Features
Efficient And Safer Filtration
Efficient antibiotic materials are utilized to prevent germs from breeding effectively
Easy Installation
The Slim design i.e. body, complete ceiling and easy-to-carry design makes installation
easier. It also fills empty spaces, hence reducing extra cost. It features a specific
drainage system with up to 24 inches lift, which allows reduction of installation spaces
and ensures smooth drainage. With the help of it's "smudge-free" mobile outlet grill,
the ceiling can be protected from pollution and allow airflow for better performance.
Supporting Power Supply
When a power failure occurs during operation, once the power is restored air
conditioner will automatically restart with the previous status.
Safety Control:
1. Additional press buttons on the panel
2. Additional temperature sensors (indoor ambient temperature sensors, indoor
coil pipe temperature sensors, outdoor ambient temperature sensors, outdoor
coil pipe temperature sensors;)
3. Piping pressure signals
4. Compressor current signals
5. Testing signals

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6. System time-shorten signal
7. Water overflowing signal
8. Communication signals between indoor unit and front plate or between indoor
unit and outdoor unit
Wire And Remote-Control
When using wire-control mode, the length of wire can be up to 49 feet.
The big LCD board makes it easier to operate. Remote mode is convenient to operate
Silent Design
The use of radial outward flow turbine fan produces larger Clyde airflow volume and
significantly decreases operating noise.

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2. Product Technical Parameter
Type HBU-28HA03/R1
Appearanc
e color
(Indoor/outdoor
unit) White/white
Cold producing capacity 28000BTU Heat producing capacity 29000BTU
Cold producing
coefficient 2.54 Heat producing coefficient 3.07
Cold producing power 2800W Heat producing power 2600W
Defrosting capacity 3.0×10-3 m 3/h Ratio of energy generating to
consuming -------------
New wind capacity Attached at new air
inlet
Negative hedonism quantity of
negative hedonism type machine -------------
Operating voltage scope 220-230V Operating current scope 8-22.5A
Operating temperature
scope See to Figure 2 Operating fitting frequency 50HZ
Temperature
adjustment difference -19.4~109.4°f Type of refrigerant 764.6°F
Climate type T1 Anti-static protection type I
Indoor unit noises (cold
producing) 39/37/35 Db (A) Outdoor unit noises (cold producing) High/low 58 Db (A)
Indoor unit noises (heat
producing) 39/37/35 Db (A) Outdoor unit noises (heat producing) High/low 58 Db (A)
External dimension of
indoor unit 33.07x33.07x9.44 in External dimension of outdoor unit 37.32x13.38x32.67in
Package dimension of
indoor unit 35.82X35.82X11.81 in Package dimension of outdoor unit 41.13x17.32x38.54in
Installation
motherboard dimension
See to the installation
figure
Layer restriction of laminated indoor
and outdoor unit 4/2
Net weight/gross weight
of indoor unit 61.729/66.139 lb Net weight/gross weight of outdoor unit 163.14/196.21 lb
Maximum installation
fall 49.2126ft Current-in side (indoor/outdoor)
Allowable infusing
quantity of refrigerant 4.299 lb Maximum infusing quantity of refrigerant -------------
Cleanout frequency of
filter Once per month Type of filter (filer screen) -------------
Filtration efficiency ------------- Dimension of filter (filter screen) -------------
Type of air compressor ZR34K3E-PFJ-522 Manufacturer of air compressor Copeland
Oil in pouring volume to
air compressor 99.30 in3Type of air compressor protector TI 15HM1529
Cut off valve type φ9.52; φ15.88 Four-way valve type -------------
Dimension of air-in grid
shaking flake ------------- Quantity /space of air-in grid shaking flake 4
Length of maximum
connecting pipe of unit 32.8084yd Total length of refrigerating pipe circuit (liquid /gas) -------------
Drainage pipe type PVC Length/ diameter of drainage pipe φ25 (inside); φ32 (outside)
Flow value of
evaporator and
condensation
4/4 Type /diameter of evaporator and
condensation pipe TP2Mφ9.52; φ15.88
Total area of evaporator 0.01283 in Total area of condensation 0.02441in
Temperature scope of
evaporator 356.6-44.6°F Temperature scope of condensation 109.4-140°f
Total fin quantity /its
row number 2/898; 2/446 Thickness /space of fin 0.11/1.9
Fin coefficient ------------- Fin material kind Light foil

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Type of capillary TP2Y Diameter /length of capillary -------------
Protector type on
control panel 3.15A Temperature sensor type 10KΩ23KΩ5KΩ
Real-time adjustment
scope ------------- Consumed power capacity Indoor: 130WOutdoor: 60x2
Type of accessories on
computer board See attachment Type of segregator for gas and liquid 2.0L
Rotating speed of air
fan
Indoor: 700/590/470
Outdoor: 840 Type /quantity of air fan Indoor: centrifugal/1 Outdoor: axial-flow/1
Type of muffle φ40x2 Kind of adopted noise reduction
material XPE
Type of desiccators ------------- Type of vibration absorbing material Daub
Air-out grid flake’s
shaking frequency ------------- Angle /distance of air ventilation Not adjusted/10m
Maximum work
pressure on heated side 3.2Mpa Maximum work pressure on cooled side 3.2Mpa
Indoor hygrometer
temperature See Table 1 Outdoor hygrometer temperature See to Table 1
Authentication
certificate held CE
Antisepsis dimension Type And
Screen (sterilization Screen) Resin screen
Appearance feature of
in and outdoor unit of
the product
Attractive Shelter material
Dispersed electro-zinc
coated sheet
Product peculiarities
1. Low noise
2. Convenient
installation, simple
operation
Product functions See to attachment
Type HBU-28CA03
Appearance
color
(Indoor/outdoor
unit) White/white
Cold producing
capacity 28000BTU Heat producing capacity -------------
Cold producing
coefficient 2.54 Heat producing coefficient -------------
Cold producing
power 2800W Heat producing power -------------
Defrosting capacity 3.0×10-3 m 3/h Ratio of energy generating to
consuming -------------
New wind capacity Attached at new air inlet Negative hydronium quantity of
negative hydronium type machine -------------
Operating voltage
scope 220-230V Operating current scope 9-16.8A
Operating
temperature scope See Figure 2 Operating fitting frequency 50HZ
Temperature
adjustment
difference
32-109.4°f Type of refrigerant R22
Climate type T1 Anti-static protection type I
Indoor unit noises
(cold producing) 39/37/35 Db (A) Outdoor unit noises (cold producing) High/low 58 Db (A)
Indoor unit noises
(heat producing) / db (A) Outdoor unit noises (heat producing) High/low / Db (A)
External dimension
of indoor unit 33x33x9.4488in External dimension of outdoor unit 38x32x32.6772f
Package dimension
of indoor unit 35x35x11.8110in Package dimension of outdoor unit 41x17x38.5433 in

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Installation
motherboard
dimension
See the installation figure Layer restriction of laminated indoor
and outdoor unit 4/2
Net weight/gross
weight of indoor
unit
61.1729/66.139 lb Net weight/gross weight of outdoor
unit 154.32/187.39 lb
Maximum
installation fall 49.2126 lb Current-in side (indoor/outdoor)
Allowable infusing
quantity of
refrigerant
4850.2 lb Maximum infusing quantity of
refrigerant -------------
Cleanout frequency
of filter Once per month Type of filter (filer screen) -------------
Filtration efficiency ------------- Dimension of filter (filter screen) -------------
Type of air
compressor ZR34K3-PFJ-522 Manufacturer of air compressor Copeland
Oil in pouring
volume to air
compressor
99.30 in3Type of air compressor protector TI 15HM1529
Cut off valve type φ9.52; φ15.88 Four-way valve type -------------
Dimension of air-in
grid shaking flake ------------- Quantity /space of air-in grid shaking flake 4
Length of maximum
connecting pipe of
unit
32.8064yd Total length of refrigerating pipe
circuit (liquid /gas) -------------
Drainage pipe type PVC Length/ diameter of drainage pipe φ25 (inside); φ32 (outside)
Flow value of
evaporator and
condensation
4/4 Type /diameter of evaporator and
condensation pipe TP2Mφ9.52; φ15.88
Total area of
evaporator 0.01283in Total area of condensation 0.02441 in
Temperature scope
of evaporator 35.6-44.6°F Temperature scope of condensation 109.4-140f
Total fin quantity
/its row number 2/898; 2/446 Thickness /space of fin 0.11/1.9
Fin coefficient ------------- Fin material kind Light foil
Type of capillary TP2Y Diameter /length of capillary -------------
Protector type on
control panel 3.15A Temperature sensor type 10KΩ23KΩ5KΩ
Real-time
adjustment scope ------------- Consumed power capacity Indoor: 130WOutdoor: 60x2
Type of accessories
on computer board See attachment Type of segregator for gas and liquid 2.0L
Rotating speed of
air fan
Indoor: 700/590/470
Outdoor: 840 Type /quantity of air fan Indoor: centrifugal/1 Outdoor: axial-flow/1
Type of muffle φ40x2 Kind of adopted noise reduction
material XPE
Type of desiccators ------------- Type of vibration absorbing material Daub
Air-out grid flake’s
shaking frequency ------------- Angle /distance of air ventilation Not adjusted/10m
Maximum work
pressure on heated
side
2.94Mpa Maximum work pressure on cooled
side 0.9Mpa
Indoor hygrometer
temperature See Table 1 Outdoor hygrometer temperature See to Table 1
Authentication
certificate held CE Antisepsis dimension Type And Screen (sterilization Screen) Resin screen

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Appearance feature
of in and outdoor
unit of the product
Nice and elegant Shelter material Dispersed electro-zinc coated
sheet
Product peculiarities
1.Low noise
2.Convenient Installation,
Simple Operation
Product functions See to attachment
Type HBU-28HA03 Appearance color
(Indoor/outdoor unit) White/white
Cold producing
capacity 28000BTU Heat producing capacity 29000BTU
Cold producing
coefficient 2.54 Heat producing coefficient 3.07
Cold producing
power 2800W Heat producing power 2600W
Defrosting capacity 3.0×10-3 m 3/h Ratio of energy generating to
consuming -------------
New wind capacity Attached at new air inlet Negative hydronium quantity of
negative hydronium type machine -------------
Operating voltage
scope 220V -230V Operating current scope 9-17.2A
Operating
temperature scope See to Figure 2 Operating fitting frequency 50HZ
Temperature
adjustment
difference
-44.6-109.4°f Type of refrigerant R22
Climate type T1 Anti-static protection type I
Indoor unit noises
(cold producing) 39/37/35 dB (A) Outdoor unit noises (cold producing) High/low 58 DB (A)
Indoor unit noises
(heat producing) 39/37/35 DB (A) Outdoor unit noises (heat producing) High/low 58 DB (A)
External dimension
of indoor unit 33x33x9.44 in External dimension of outdoor unit 41.3386x17.3228x35.5433in
Package dimension
of indoor unit 35x35x11.81 in Package dimension of outdoor unit 41.3386x17.3228x38.5433in
Installation
motherboard
dimension
See the installation figure Layer restriction of laminated
indoor and outdoor unit 4/2
Net weight/gross
weight of indoor
unit
61.729/66.139 lb Net weight/gross weight of outdoor
unit 163.14/196.21 lb
Maximum
installation fall 16.4042 lb Current-in side (indoor/outdoor)
Allowable infusing
quantity of
refrigerant
5291.1pd Maximum infusing quantity of
refrigerant -------------
Cleanout frequency
of filter Once per month Type of filter (filer screen) -------------
Filtration efficiency ------------- Dimension of filter (filter screen) -------------
Type of air
compressor ZR34K3-PFJ-522 Manufacturer of air compressor Copeland
Oil in pouring
volume to air
compressor
99.30800in3 Type of air compressor protector TI 15HM1529
Cut off valve type φ9.52; φ15.88 Four-way valve type -------------
Dimension of air-in
grid shaking flake ------------- Quantity /space of air-in grid shaking flake 4
Length of maximum 32.8084yd Total length of refrigerating pipe -------------

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connecting pipe of
unit
circuit (liquid /gas)
Drainage pipe type PVC Length/ diameter of drainage pipe φ25 (inside); φ32 (outside)
Flow value of
evaporator and
condensation
4/4 Type /diameter of evaporator and
condensation pipe TP2Mφ9.52; φ15.88
Total area of
evaporator 0.01286 in Total area of condensation 0.0244in
Temperature scope
of evaporator 35.6-446°F Temperature scope of condensation 109.41407
Total fin quantity
/its row number 2/898; 2/446 Thickness /space of fin 0.11/1.9
Fin coefficient ------------- Fin material kind Light foil
Type of capillary TP2Y Diameter /length of capillary -------------
Protector type on
control panel 3.15A Temperature sensor type 10KΩ23KΩ5KΩ
Real-time
adjustment scope ------------- Consumed power capacity Indoor: 130WOutdoor: 60x2
Type of accessories
on computer board See attachment Type of segregator for gas and liquid 2.0L
Rotating speed of
air fan
Indoor: 700/590/470
Outdoor: 840 Type /quantity of air fan Indoor: centrifugal/1 Outdoor: axial-flow/1
Type of muffle φ40x2 Kind of adopted noise reduction
material XPE
Type of desiccators ------------- Type of vibration absorbing material Daub
Air-out grid flake’s
shaking frequency ------------- Angle /distance of air ventilation Not adjusted/10m
Maximum work
pressure on heated
side
2.94Mpa Maximum work pressure on cooled
side 2.94Mpa
Indoor hygrometer
temperature See Table 1 Outdoor hygrometer temperature See to Table 1
Authentication
certificate held CE
Antisepsis dimension Type And
Screen (sterilization Screen) Resin screen
Appearance and
feature of indoor
and outdoor unit
Nice and elegant Shelter material Dispersed electro-zinc coated
sheet
Product peculiarities
1.Low noise
2.Convenient installation,
Simple Operation
Product functions See to attachment
Type HBU-28CC03 Appearance color
(Indoor/outdoor unit) White/white
Cold producing
capacity 28000BTU Heat producing capacity -------------
Cold producing
coefficient 2.54 Heat producing coefficient -------------
Cold producing
power 2800W Heat producing power -------------
Defrosting capacity 3.0×10-3 m 3/h Ratio of energy generating to
consuming -------------
New wind capacity Attached at new air inlet Negative hydronium quantity of
negative hydronium type machine -------------
Operating voltage 220-230V Operating current scope 4.0-6.5A