HFU 09,12H03R2DB SM(05 05 04).p 12H03/R2(DB) 09 12h03r2db Sm05 04

User Manual: HFU-12H03/R2(DB)

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Domestic Air Conditioner
SERVICE MANUAL
Models
HFU-09H03/R2(DB)
Features
International well-known compressor,economic and convenience.
Novelty appearance,beautiful and generous.
Anti-fungus filtration, multi-layer of fresh air.
Powerful operation,adjust temperature quickly.
CFC free refrigerant for environmental protection.
Serial Number: 0010540329 Version
n
:04.00 Edition: 2004-12-24
HFU-12H03/R2(DB)
Content
1. Description of product model coding and series introduction--3
2. Specifications -------------------------------------------------------------5
3. Curves of performance---------------------------------------------------8
4. Description,net dimensions and functions of main components
and accessories------------------------------------------------------------12
5. Knock-down drawings and part lists---------------------------------15
6. Brief introduction to electrical control functions-------------------22
7.
Abnormity diagnose-------------------------------------------------------38
8.
----------------------------------------------------------34
9.
Circuit diagram------------------------------------------------------------ 36
10. Trouble shooting------------------------------------------------------------40
11. Refrigerating cycle diagram------------------------------------------42
12. Noise level test chart and air veloc ity distribution-------------------------44
13. Installation manual -----------------------------------------------------47
Domestic Air Conditioner Model: HFU-09H03/R2(DB)
Wiring diagram
1
HFU-12H03/R2(DB)
Features
1.comfortable:wide-angle airflow
The vertical dual-flap and horizontal wide-angle louvers ensure the cool(warm air reaches every
corner of the room.
efficiency of cooling/heating functions.
4.Convenience
Auto restart and washable panel:
The grille can be removed easil y and washed when necessary.Any series have the function then
even if the power falls when the unit is operating unit will automatically return to the operating
settings in use before the power failure when power is restored.
5.Wide variety of functions
24-Hour Timer:
24-hour timer allows users to select the exact time they would like the air conditioner to turn on
and to turn off.Timers on previous models operation based on the number of hours of desired
operation.
6.Night-set models
When the air conditioner is operationg on the timer-off circuit.The preset room temperature
gradually rises(going down in heating)before the unit stops as shown delow.Users can sleep
comfortably without sudden change in temperature.
7.Program”dry”
This function automatically reduces the level of humidity while maintaining the preset indoor
temperature.
Domestic Air Conditioner Model: HFU-09H03/R2(DB)
HFU-12H03/R2(DB)
2
2.Quiet operation
Fan With Random-pitched Blades.
Random-pitched blades help reduce operating noise while maintaining a high airflow rate.
3
.Engergy efficient
The design of inner-grooved copper tube greatly increases the refrigerant contact area and the
Description of product model
coding and series introduction
Domestic Air Conditioner Model:
3
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
4
Introductory Remarks
A. Description of coding rules of unit model
Coding rules and descriptions are as follows:
Applicable frequency:0(50HZ),1(60HZ)
Applicable voltage:3(220~230V),4(240V)
Refrigerant type:R1(R407C),R2(R410A)
Developing sequence :A,B,C,D...
Function code
R/H-heat pump
E-electric aided heating
Nominal cooling capacity (BTU/h)with the first two
numbers based on thousand unit
The structure code of indoor & outdoor unit:
S(wall-mounted),W(window type),P (cabinet type)
H-Abbreviation of Haier
234567
18 9
L/C-cooling only
10 11
Examples:
H2SM-18HS03/R2,It represents wall-mounted split type heat pump air conditioner .The cooling
capacity is 18000BTU/h,and the power supply is 220-230V/50Hz,”S” means the developing
sequence,"2"means one by two,and"R2" means the refrigerant is R410A.
No.
1
2
3
Operating condition
Norminal cooling
Norminal heating
Norminal electrical
heating
indoor air status
DBOCWB
OC
20OCnot control
DBO
CWB
OC
7O
C 6O
C
outdoor air status
--- --- --- ---
B.Standard Situation/Conditions
27O
C19OC35
O
C24
O
C
Domestic Air Conditioner Model:
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
Specifications
Domestic Air Conditioner Model:
5
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
Model: HFU-09H03/R2(DB)
Cooling capacity(W) 2800 Heating capacity(W) 3150
Cooling coefficient(W/W) 3.46 Heating coefficient(W/W) 3.62
Cooling power input(W) 810 Heating power input(W) 870
Moiture removal(m /h)31.0X10-3 Frequency range(Hz) 50
Operating voltage range (V ) 220-230 ~ Refrigerant type R410A
Operating temp. range (OC ) -7-43 Air sending angle 60O
indoor unit Cross flow fan
Variation of temp. adjust (OC ) + 1 Fan type
outdoor unit Axial flow fan
Climate type: T1 Class of electric shock I
Indoor unit noise 40/36/31 Outdoor unit noise 48
Net dimensions mm
(indoor unit) 720*205*630 Net dimensions mm
(outdoor unit) 780*245*540
Packaging dimensions mm
(indoor unit) 780*280*690 Packaging dimensions mm
(outdoor unit)
Net/gross weight (kg)
(indoor unit) 17/20 Net/gross weight (kg)
(outdoor unit) 30/35
indoor unit 8
Max. mounting height
difference(m) 10 Piling layers
outdoor unit 4
Refrigerant charge(g)
(
R410
A
640 Current entering side
(
indoor/outdoor
)
Indoor
Frequency of filter cleaning Once/2 weeks Compressor manufacturer TOSHIBA
Compressor model DA89X1C-20FZ Compressor oil type NMOCZE-Gles RB68EP or
Equivdent
Compressor oil charge (cc) 270 Compressor protector type B130-150-241E
Maxi. length of connecting
pipe (m) 15 length(mm) 2000
Refrigerant recharged(Length
of connecting pipe is more
than 5 meter
)
20g per meter
drain hose
diametre(mm) 16
Cap. tube type muffle
model: TP2YType of tube of evaporator
and condenser Internal treaded
Fan speed(H/M/L)(r/min)
(indoor unit) 1000/900/800 Size of tube of evaporator and
condenser(mm) Dia. 7 / 7
Fan speed(r/min)
(outdoor unit) 900 Appearance features of indoor
unit console type
two-way 1/4
Cu
t
off vavle
(
inch
)
Appearance features of outdoor
uni
t
Metal type
three-way 3/8
Max. operating pressure at Max. operating pressure at cool
warm side(Mpa
)
4.15 side(Mpa) 4.15
Domestic Air Conditioner Model:
6
930*340*620
HFU-09H03/R2(DB)
HFU-12H03/R2(DB)
Model: HFU-12H03/R2(DB)
Cooling capacity(W) 3900 Heating capacity(W) 4100
Cooling coefficient(W/W) 3.51 Heating coefficient(W/W) 3.42
Cooling power input(W) 1110 Heating power input(W) 1200
Moiture removal(m /h)31.3X10-3 Frequency range(Hz) 50
Operating voltage range (V ) 220-230 ~ Refrigerant type R410A
Operating temp. range (OC ) -7-43 Air sending angle 60O
indoor unit Cross flow fan
Variation of temp. adjust (OC ) + 1 Fan type
outdoor unit Axial flow fan
Climate type: T1 Class of electric shock I
Indoor unit noise 41/37/31 Outdoor unit noise 53
Net dimensions mm
(indoor unit) 720*205*630 Net dimensions mm
(outdoor unit) 780*245*540
Packaging dimensions mm
(indoor unit) 780*280*690 Packaging dimensions mm
(outdoor unit)
Net/gross weight (kg)
(indoor unit) 17/20 Net/gross weight (kg)
(outdoor unit) 30/35
indoor unit 8
Max. mounting height
difference(m) 15 Piling layers
outdoor unit 4
Refrigerant charge(g)
(
R410
A
640 Current entering side
(
indoor/outdoor
)
Indoor
Frequency of filter cleaning Once/2 weeks Compressor manufacturer SANYOO
Compressor model C-6RZ092H1A Compressor oil type FV-68S
Compressor oil charge (cc) 350 Compressor protector type ---------------
Maxi. length of connecting
pipe (m) 15 length(mm) 2000
Refrigerant recharged(Length
of connecting pipe is more
than 5 meter
)
20g per meter
drain hose
diametre(mm) 16
Cap. tube type muffle
model: TP2YType of tube of evaporator
and condenser Internal treaded
Fan speed(H/M/L)(r/min)
(indoor unit) 1000/900/800 Size of tube of evaporator and
condenser(mm) Dia. 7 / 7
Fan speed(r/min)
(outdoor unit) 900 Appearance features of indoor
unit console type
two-way 1/4
Cu
t
off vavle
(
inch
)
Appearance features of outdoor
uni
t
Metal type
three-way 3/8
Max. operating pressure at Max. operating pressure at cool
warm side(Mpa
)
4.15 side(Mpa) 4.15
Domestic Air Conditioner Model:
7
930*340*620
HFU-09H03/R2(DB)
HFU-12H03/R2(DB)
Curves of performance
Domestic Air Conditioner Model:
8
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
Curves of cooling capacity and heating capacity as a function of outdoor
temperature(-7OC~43OC)
Domestic Air Conditioner Model:
9
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
CURVES OF CAPACITY AND POWER INPUT.
COOLING CAPACITY
Hz 30 50 60 80 90 110 120
Cooling 1244 2321 2833 3983 4502 5565 6246
COOLING CAPACITY
0
2000
4000
6000
8000
1234567
Power Input
Hz 30 50 60 80 90 110 120
Power Input 387 570 691 973 1109 1465 1605
Power Input
0
500
1000
1500
2000
1234567
Domestic Air Conditioner Model:
C-6RZ092H1A
10
Curves of compressor performance
Compressor: DA89XIC-20FZ Model:HFU-09H03/R2(DB)
35
8.3
Ambient temp OC
UNDER COOL OC
SUCTION GAS TEMP OC
35
6.5
5.5
3.5
1200
1000
800
3000
4000
600
2000
1000
60.0
55.0
50.0
45.0
60.0
55.0
50.0
45.0
60.0
55.0
50.0
45.0
-0 510
evaporating temp OC
capacity (W) input (W) curent (A)
Condensing temp OC
4.5
500
1500
2500
3500
-5
2.5
60.0
11
Model:
HFU-09H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner
DA89X1C-20FZ
Description,dimension and function of
main components and accessories
Domestic Air Conditioner Model:
12
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
Indoor unit 1.OUTLET
2.CONTROL PANEL
3.INLET
4.FILTER (inside)
5.OUTLET
Outdoor unit
13
Parts and Functions
INLET
OUTLET DRAIN HOSE
CONNECTING PIPING AND ELECTRICAL WIRING
Indoor unit for HFU-09H03/R2(DB) HFU-12H03/R2(DB)
NET DIMENSIONS:
14
845 286
256
15 123 55 67
68
140
62
540
780
500
845
140
62
540
780
500
720
205
630
HFU-09H03/R2(DB)
HFU-12H03/R2(DB)
Knock-down drawings
Domestic Air Conditioner Model:
15
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
KNOCK-DOWN DRAWINGS FOR INDOOR UNIT
Domestic Air Conditioner el
16
HFU-09H03/R2(DB)
HFU-12H03/R2(DB)
KNOCK-DOWN DRAWINGS FOR OUTDOOR UNIT
21
17
2
3
4
5
69
11
13
18
19
20
22
23
10
1
78
12
15
16
14
24 28 29
30
25 26
27
Domestic Air Conditioner el
17
HFU-09H03/R2(DB)
HFU-12H03/R2(DB)
Model: HFU-09H03/R2 DB
NO. In
exploded
view
Name of part
Part
specialized
code
Model QTY. remark
1 Front grille 0010800954 HFU-09H03/R2 DB 1 indoor unit
2 Air purifying filter 0010201169 HFU-09H03/R2 DB 1 indoor unit
3 Button 0010201288 HFU-09H03/R2 DB 1 indoor unit
4 Front panel 0010800923 HFU-09H03/R2 DB 1 indoor unit
5 Heat exchanger 0010706830 HFU-09H03/R2 DB 1 indoor unit
6 Temperature sensor 001A3900059 HFU-09H03/R2 DB 1 indoor unit
7 DOWN Motor cover 0010800928 HFU-09H03/R2 DB 1 indoor unit
8 Bearing 0010201176 HFU-09H03/R2 DB 2 indoor unit
9 Bearing 0010201176 HFU-09H03/R2 DB 2 indoor unit
10 Flap 0010201191 HFU-09H03/R2 DB 1 indoor unit
11 Air outlet assy 0010800930 HFU-09H03/R2 DB 1 indoor unit
12 Bottom plate 0010800924 HFU-09H03/R2 DB 1 indoor unit
13 Plate cushion 0010800932 HFU-09H03/R2 DB 1 indoor unit
14 Back panel 0010100571 HFU-09H03/R2 DB 1 indoor unit
15 Screw 5002008 HFU-09H03/R2 DB 1 indoor unit
16 Screw 5002116 HFU-09H03/R2 DB 1 indoor unit
17 Screw washer 5401031 HFU-09H03/R2 DB 1 indoor unit
18 Screw 5002118 HFU-09H03/R2 DB 1 indoor unit
19 Swing motor 0010400935 HFU-09H03/R2 DB 1 indoor unit
20 Motor 0010400933 HFU-09H03/R2 DB 1 indoor unit
21 Display board ------ HFU-09H03/R2 DB 1 indoor unit
22 UP Motor cover 0010800926 HFU-09H03/R2 DB 1 indoor unit
23 Control box shell 0010100572 HFU-09H03/R2 DB 1 indoor unit
24 Control box 0010201188 HFU-09H03/R2 DB 1 indoor unit
25 Main board 0010403628 HFU-09H03/R2 DB 1 indoor unit
26 Power board ------ HFU-09H03/R2 DB 1 indoor unit
27 Service cover 0010201189 HFU-09H03/R2 DB 1 indoor unit
28 Teminal block 0010400931 HFU-09H03/R2 DB 1 indoor unit
29 Wiring clamp 0010201269 HFU-09H03/R2 DB 1 indoor unit
30 Screw 5002099 HFU-09H03/R2 DB 1 indoor unit
31 Screw 5002236 HFU-09H03/R2 DB 1 indoor unit
32 Hand switch 0010201275 HFU-09H03/R2 DB 1 indoor unit
33 Slect board ------ HFU-09H03/R2 DB 1 indoor unit
34 Motor 0010400934 HFU-09H03/R2 DB 1 indoor unit
35 Flap 0010201209 HFU-09H03/R2 DB 1 indoor unit
36 Drain pan assy 0010201208 HFU-09H03/R2 DB 1 indoor unit
37 Wires 0010400932 HFU-09H03/R2 DB 1 indoor unit
38 DOWN Below fan 0010201184 HFU-09H03/R2 DB 1 indoor unit
39 Up fan 0010201175 HFU-09H03/R2 DB 1 indoor unit
40 Cover panel 0010201281 HFU-09H03/R2 DB 1 indoor unit
41 Screw 5002236 HFU-09H03/R2 DB 1 indoor unit
42 Power wire 4200094 HFU-09H03/R2 DB 1 indoor unit
43 Remote controller 0010401605 HFU-09H03/R2 DB 1 indoor unit
Model: HFU-12H03/R2 DB
NO. In
exploded
view
Name of part
Part
specialized
code
Model QTY. remark
1 Front grille 0010800954 HFU-12H03/R2 DB 1.00 indoor unit
2 Air purifying filter 0010201169 HFU-12H03/R2 DB 1.00 indoor unit
3 Button 0010201288 HFU-12H03/R2 DB 1.00 indoor unit
4 Front panel 0010800923 HFU-12H03/R2 DB 1.00 indoor unit
5 Heat exchanger 0010706824 HFU-12H03/R2 DB 1.00 indoor unit
6 Temperature sensor 001A3900059 HFU-12H03/R2 DB 1.00 indoor unit
7 DOWN Motor cover 0010800928 HFU-12H03/R2 DB 1.00 indoor unit
8 Bearing 0010201176 HFU-12H03/R2 DB 2.00 indoor unit
9 Bearing 0010201176 HFU-12H03/R2 DB 2.00 indoor unit
10 Flap 0010201191 HFU-12H03/R2 DB 1.00 indoor unit
11 Air outlet assy 0010800930 HFU-12H03/R2 DB 1.00 indoor unit
12 Bottom plate 0010800924 HFU-12H03/R2 DB 1.00 indoor unit
13 Plate cushion 0010800932 HFU-12H03/R2 DB 1.00 indoor unit
14 Back panel 0010100571 HFU-12H03/R2 DB 1.00 indoor unit
15 Screw 5002008 HFU-12H03/R2 DB 1.00 indoor unit
16 Screw 5002116 HFU-12H03/R2 DB 1.00 indoor unit
17 Screw washer 5401031 HFU-12H03/R2 DB 1.00 indoor unit
18 Screw 5002118 HFU-12H03/R2 DB 1.00 indoor unit
19 Swing motor 0010400935 HFU-12H03/R2 DB 1.00 indoor unit
20 Motor 0010400933 HFU-12H03/R2 DB 1.00 indoor unit
21 Display board ------ HFU-12H03/R2 DB 1.00 indoor unit
22 UP Motor cover 0010800926 HFU-12H03/R2 DB 1.00 indoor unit
23 Control box shell 0010100572 HFU-12H03/R2 DB 1.00 indoor unit
24 Control box 0010201188 HFU-12H03/R2 DB 1.00 indoor unit
25 Main board 0010403628 HFU-12H03/R2 DB 1.00 indoor unit
26 Power board ------ HFU-12H03/R2 DB 1.00 indoor unit
27 Service cover 0010201189 HFU-12H03/R2 DB 1.00 indoor unit
28 Teminal block 0010400931 HFU-12H03/R2 DB 1.00 indoor unit
29 Wiring clamp 0010201269 HFU-12H03/R2 DB 1.00 indoor unit
30 Screw 5002099 HFU-12H03/R2 DB 1.00 indoor unit
31 Screw 5002236 HFU-12H03/R2 DB 1.00 indoor unit
32 Hand switch 0010201275 HFU-12H03/R2 DB 1.00 indoor unit
33 Slect board ------ HFU-12H03/R2 DB 1.00 indoor unit
34 Motor 0010400934 HFU-12H03/R2 DB 1.00 indoor unit
35 Flap 0010201209 HFU-12H03/R2 DB 1.00 indoor unit
36 Drain pan assy 0010201208 HFU-12H03/R2 DB 1.00 indoor unit
37 Wires 0010400932 HFU-12H03/R2 DB 1.00 indoor unit
38 DOWN Below fan 0010201184 HFU-12H03/R2 DB 1.00 indoor unit
39 Up fan 0010201175 HFU-12H03/R2 DB 1.00 indoor unit
40 Cover panel 0010201281 HFU-12H03/R2 DB 1.00 indoor unit
41 Screw 5002236 HFU-12H03/R2 DB 1.00 indoor unit
42 Power wire 4200094 HFU-12H03/R2 DB 1.00 indoor unit
43 Remote controller 0010401605 HFU-12H03/R2 DB 1.00 indoor unit
No. in
explode
d view
Spare parts
number
Spare parts description in english Model QTY
.
Failure
rate
The proportion
of the spare part
stock
remark
1 001A0100017 Front grille HFU-09H03/R2(DB) 1
2 001A1101009 Front panel HFU-09H03/R2(DB) 1
3 0010203662 Fan HFU-09H03/R2(DB) 1 *
4 0010403487 Motor HFU-09H03/R2(DB) 1 *
5 0010100419 Frame for motor HFU-09H03/R2(DB) 1
6 0010706498 Heat exchanger HFU-09H03/R2(DB) 1
7 001A5736055 Fixed clip forenviroment temp.
sensor HFU-09H03/R2(DB) 1
8 001A3800082 Temperature sensor HFU-09H03/R2(DB) 1 *
9 0010101388 Back panel HFU-09H03/R2(DB) 1
10 001A1101010 Top panel HFU-09H03/R2(DB) 1
11 001A3900056 Compressor temperature sensor HFU-09H03/R2(DB) 1 *
12 001A3900055 Tube temperature sensor HFU-09H03/R2(DB) 1 *
13 0010706509 Entering gas pipe HFU-09H03/R2(DB) 1
14 0010706497 Capillary Tube HFU-09H03/R2(DB) 1
15 0010403022 4-way valve coil HFU-09H03/R2(DB) 1 *
16 0010704488 4-way valve HFU-09H03/R2(DB) 1
17 0010705988 Stop valve HFU-09H03/R2(DB) 1
18 0010705255 Stop valve HFU-09H03/R2(DB) 1
19 001A5102050 Flange Nut HFU-09H03/R2(DB) 3
20 0010706492 Compressor HFU-09H03/R2(DB) 1 *
21 001A17621544 Cushion HFU-09H03/R2(DB) 1
22 001A1101014 Bottom plate HFU-09H03/R2(DB) 1
23 001A1436042 Service cover HFU-09H03/R2(DB) 1
24 0010804196 Separating plate HFU-09H03/R2(DB) 1
25 001A0100427 Reactor box HFU-09H03/R2(DB) 1
26 0010403365 Reactor HFU-09H03/R2(DB) 1 *
27 0010403368 Power Module HFU-09H03/R2(DB) 1 *
28 0010403521 PCB HFU-09H03/R2(DB) 1 *
29 0010403520 Capacitor board HFU-09H03/R2(DB) 1 *
30 001A4000105 Terminal Block HFU-09H03/R2(DB) 1
1,The failer rate and the proportion of the spare-part stock are regarded as the reference of the stock for spare-parts;The first
time should be stocked accroded with the proportion of the spare-parts,and it should be adjusted with the actual quantity 3
months later.
2,easy-damaged;The spare-part which is often damaged and the customer must stock in the spare-parts warehouse,and
should be marked with"*"
3,possible damaged:The spare-part which is not often damaged like the easy damaged one and the customer may stock in
the spare-part warehouse accord with the actual case,should be marked with " ".
4,not need provided :The spare-part which is seldom damaged or the maintenance man could not maitmains.The spare
parts may be air freighted by the factory if they were damaged.The customer nees not stock in the spare-part
warehouse,should be marked with " x ".
5,Above should be improved accord with the reply of the market half a year per time.
6.The spare parts price on net is FOB Qingdao term.
Model:
Edition:2005/03/14
HFU-09H03/R2(DB)
Domestic Air Conditioner
20
26
No. in
exploded
view
Spare parts
number
Spare parts description in english Model QTY
.
Failure
rate
The proportion
of the spare
part stock
remark
1 001A0100017 Front grille HFU-12H03/R2(DB) 1
2 001A1101009 Front panel HFU-12H03/R2(DB) 1
3 0010203662 Fan HFU-12H03/R2(DB) 1 *
4 0010403508 Motor HFU-12H03/R2(DB) 1 *
5 0010100419 Frame for motor HFU-12H03/R2(DB) 1
6 0010706505 Heat exchanger HFU-12H03/R2(DB) 1
7 001A5736055 Fixed clip forenviroment temp. sensor HFU-12H03/R2(DB) 1
8 001A3800082 Temperature sensor HFU-12H03/R2(DB) 1 *
9 0010101388 Back panel HFU-12H03/R2(DB) 1
10 001A1101010 Top panel HFU-12H03/R2(DB) 1
11 001A3900056 Compressor temperature sensor HFU-12H03/R2(DB) 1 *
12 001A3900055 Tube temperature sensor HFU-12H03/R2(DB) 1 *
13 0010706502 Entering gas pipe HFU-12H03/R2(DB) 1
14 0010706504 Capillary Tube HFU-12H03/R2(DB) 1
15 001A2500076 4-way valve coil HFU-12H03/R2(DB) 1 *
16 0010703501 4-way valve HFU-12H03/R2(DB) 1
17 0010705256 Stop valve HFU-12H03/R2(DB) 1
18 0010705255 Stop valve HFU-12H03/R2(DB) 1
19 001A5102050 Flange Nut HFU-12H03/R2(DB) 3
20 0010706499 Compressor HFU-12H03/R2(DB) 1 *
21 001A17621544 Cushion HFU-12H03/R2(DB) 1
22 001A1101014 Bottom plate HFU-12H03/R2(DB) 1
23 001A1436042 Service cover HFU-12H03/R2(DB) 1
24 0010804196 Separating plate HFU-12H03/R2(DB) 1
25 001A0100427 Reactor box HFU-12H03/R2(DB) 1
26 0010403365 Reactor HFU-12H03/R2(DB) 1 *
27 0010403368 Power Module HFU-12H03/R2(DB) 1 *
28 0010403519 PCB HFU-12H03/R2(DB) 1 *
29 0010403520 Capacitor board HFU-12H03/R2(DB) 1 *
30 001A4000105 Terminal Block HFU-12H03/R2(DB) 1
1,The failer rate and the proportion of the spare-part stock are regarded as the reference of the stock for spare-parts;The first
time should be stocked accroded with the proportion of the spare-parts,and it should be adjusted with the actual quantity 3
months later.
2,easy-damaged;The spare-part which is often damaged and the customer must stock in the spare-parts warehouse,and
should be marked with"*"
3,possible damaged:The spare-part which is not often damaged like the easy damaged one and the customer may stock in
the spare-part warehouse accord with the actual case,should be marked with " ".
4,not need provided :The spare-part which is seldom damaged or the maintenance man could not maitmains.The spare
parts may be air freighted by the factory if they were damaged.The customer nees not stock in the spare-part
warehouse,should be marked with " x ".
5,Above should be improved accord with the reply of the market half a year per time.
6.The spare parts price on net is FOB Qingdao term.
Model:
Edition:2004/09/20
HFU-12H03/R2(DB)Domestic Air Conditioner
21
Brief introduction to electrical
control function
Domestic Air Conditioner Model:
22
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
1. Introduction to electrical control function
Including brief introduction to air conditioners of series models and electrical control function as well as the technical
information.
1.1 Brief introduction to electrical function
1.1.1 Status conversion
As the following figure:
Press Emergency 10-15
Press Emergency or
Remote Timer RemoteControltostop
Control Stops Operation
1.1.2 Automatic function (automatic running function is selected after pressing emergency button 0-5s)
1.1.2.1 Status conversion under automatic running
As the following figure:
Cool (setting temp. 26嘙C)
23嘙C
Heat (setting temp. 23嘙C)
When running in the automatic emergency status, indoor unit can receive the remote controller’ s signal to convert
status.
1.1.2.2 Air volume control under automatic running
Wind speed of indoor fan is automatically adjusted when automatic running, refer to air volume control under
cool/heating running for details.
Malfunction meter
Unit stops
Timer
Cool
Dehumidify
Heat
Trial running
Emergency Cool
Emergency Heat
Abnormity Diagnose
Sensor Abnormity
Ambient Temp.
1.1.2.3 Frequency control for compressor under automatic running
It is the same as the frequency control for compressor under cool/heating running.
Domestic Air Conditioner Model:
23
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
1.1.2 Cooling running
1.1.2.1 Air volume control under cooling running (Cool compensation temp. – 0.33嘙C)
When setting manual control, wind speed will run accord to the setting value during compressor running, and run
in the speed of setting value minus 60rpm during compressor stopping.
When setting automatic wind speed, its velocity is related to temperature difference T ( ambient temp.
compensation temp. setting temp. ). See the following table for details:
Temperature difference (嘙C) T> 4.3 4.3 T0.3 T < 0.3
Wind speed High Middle Low
1.1.2.2 Compressor control under cooling running
compressor frequency:1.1.2.2.1 when running in normal status, control of
Temperature difference (嘙
C)
4.3 T
T> 4.3 1.3 1.3 T -1 T < -1
Maximum frequency (Hz) High frequency Mid. frequency Low frequency Compressor
stop
1.1.2.2.2 when running in cool mode, the setting air volume restricts frequency as follows:
Maximum frequency (Hz) Setting air volume
Middle 90 Hz
Low 52 Hz
s frequ
Outdoor ambient C) Maximum frequency (Hz)
T 26 No limitation
T < 26 60 Hz
1.1.3 Dehumidificati
.1.3.1 Air volume control under dehumidification running (Cool compensation temperature – 0.33
Except for the first runn at fan runs in low speed during compressor stopping, fan sto
FF.
hen setting manual control, wind speed runs according to the following table during comp
1.1.2.2.3 when running in cool mode, the outdoor ambient temperature restrict ency as follows: (only
applying to the machine models with outdoor ambient temperature sensor).
temp. (嘙
on running
1嘙C)
ps during compressor
ressor running:
C)
ing th
O
W
Temperature difference (嘙T 0.3 T < 0.3
Wind speed Setting Low
When setting automatic wind speed, its velocity is related to temperature difference (ambient temp. setting
emp.). See the following table for details:
Temperature difference (嘙C) T> 4.3 4.3 T
Wind speed High Middle
0.3 T < 0.3
Low
t
Domestic Air Conditioner Model:
24
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
1.1.3.2 Compressor control under dehumidification running
1.1.3.2.1 When running in normal status, control of compressor frequency:
Temperature difference (嘙
C) T> 4.3 4.3 T
1.3 1.3 T -1 T < -1
Mid. frequency Low frequency Compressor
Maximum frequency (Hz) High frequency stop
1.1.3.2.2 When running in dehumidify mode, the setting air volume restricts frequency as follows:
Setting airflow Maximum frequency (Hz)
Middle 90 Hz
Low 52 Hz
1.1.3.2.3 When running in dehumidify mode, the outdoor ambient temperature restricts frequency as follows:
(only applying to the machine models with outdoor ambient temperature sensor).
Outdoor ambient temp. (嘙C) Maximum frequency (Hz)
T 26 No limitation
T < 26 60 Hz
1.1.4 Heating running (heat compensation temp. 4.67嘙C)
.1.4.1 Air volume control under heating running
en compressor restarts, it shall be warm start to prevent cold
wind.
Therma e:
35.1嘙C(u
25.2嘙C (undetermined)
15 嘙C (undetermined)
Low Lower stop
N
For different machine type, the “ undetermined” parameters is also different, here only take this example for illustration.
“ * ” Indicating that if unit maintains in this wind speed for more than 4 minutes, it then select higher speed.
When setting automatic wind speed, its velocity is related to the temperature difference (including compensation
mperature), see the following table for details:
e(嘙C)
1
When heating running starts, defrosting stops. Wh
l conversion temperatur
ndetermined)
35.1嘙C (undetermined)
*Selecthigherwindspeedafter4minutes
stop Lower Low setting
ote:
te
Temperature differenc T> 4.3 4.3 T0.3 T < 0.3
Wind speed High Middle Low
Domestic Air Conditioner Model:
25
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
1.1.4.2 Compressor control under heating running
1.1.4.2.1 When runnin status, control of co frequency:g in normal mpressor
Temperature difference (嘙
C) T> 4.3 4.3 T
1.3 1.3 T -1 T < -1
Maximum frequency (Hz) High frequency Mid. frequency Low frequency Compressor
stops
1.1.4.1.2 Wh ode, the r ambi emp restricts ncy as follows:
(only applying to the m els with outdoor a t temperature sensor).
Outdoor ambient temp. (嘙C) Maximum frequency (Hz)
en running in dehumidify m outdoo ent t erature freque
achine mod mbien
T 15 60 Hz
T < 15 No limitation
1.1.5 Defrosting
1.1.5.1 D
ference, and
the maximum heating frequency is displayed.
Compressor does not stop in the process of defrosting.
Defrosting beginning conditions: Heat mode, the first power on operation or the lasting time to the previous
defrosting finishing is more than 47 minutes, and the outdoor ambient temperature is continuously found to be less
Outdoor fa Def
4-way valve Defrosting process 55S
Defrosting finish compressor restart
.1.5.2 Air volum
.1.6.1.1 Beginni
running
efrosting process
When defrosting during heating operation, frequency is not controlled according to the temperature dif
than -4嘙C ( model: 26, 28) or -5嘙C (model: 32, 36, 40) during compressor running, and then defrosting starts.
Defrosting process as following illustration:
n rosting process
Compressor 55S 5S Defrosting process 60S
1 e control during defrosting
is firstly selected during defrosting, then indoor fan stops running.
n
ng conditions
20 seconds Low wind
1.1.6 Special functio
1.1.6.1 Trial running
1
Domestic Air Conditioner Model:
26
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
Pressing emergency button 5-10 seconds and buzzer sounding twice, then starts.
1.1.6.1.2 Running status
When in trial running, the display frequency of compressor is 58Hz, running mode is cool, compressor keeps on
running for 30 minutes and will not be restricted by low-load protection (refer to protection function).
1.1.6.1.3 Finishing conditions
Trial running will stop when remote control or emergency signal is received. After 30 minutes trial running,
emergency running (automatic running) starts.
1.1.6.2 Abnormity diagnose
When displaying abnormity, using indicator to express the previous error.
hen having no error code record, show nothing.
he abnormity indicating mode will automatically disappeared 30 seconds later.
he remote controller only receives stopping signal and abnormity record indicating mode will finish according to
roller.
Pressin 5 seconds zzer sounds three times, a en r
1.1.6.2.2
The indicator displays the previous error code (see the error code list).
Finishing when remote control or emergency signal is received.
1.1.7 Prote o nction
1.1.7.1 Lo protection
uring cooling running, if the indoor coil-pipe does not evaporate thoroughly and the temperature is too low, the
for protection to prevent it from damaging due to the system “ liquid hitting” . See the
details:
Thermal conversion temperature:
-0.5º C
Normal Min. frequency Stop Min Limit
W
T
T
the stopping signal of the switch or the remote cont
1.1.6.2.1 Beginning conditions
g emergency switch 10-1 , the bu nd th sta t.
Running status
1.1.6.2.3 Finishing condition
cti n fu
w-load
D
compressor must be stopped
following figure for action
Low-load protection control:
2º C
Normal
frequency
Domestic Air Conditioner Model:
27
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
uring cooling-dehumidification running, low-load protection is carried out according to indoor coil-pipe
e displayed frequency is “ 58Hz” .
ncy is displayed when indoor coil- pipe temperature is lower than 2º C and coil-pipe
temperature is above -0.5º C.
When thermal conversion temperature is lower than 0.5º C, selecting 3 minutes stand-by status.
hen indoor coil-pipe temperature is 2.1º C, the compressor restarts.
uring trial running, the low-load protection control can be overlooked.
stopped for
protection to prevent it from damaging due to the system overheating. See the following figure for details:
Indoor coil pipe temperature sensor type: R (25º C)=10Kȍ
D
temperature; whereas, th
The minimum freque
W
D
1.1.7.2 High-load protection
During heating running, if the indoor coil-pipe temperature is too high, the compressor must be
Thermal conversion temperature
67º C (undetermined)
62º C (undetermined)
51º C (undetermined)
49.2º C (undetermined)
47º C (undetermined)
45.2º C (undetermined)
Indicate
HFU-12H03(B)/R1
3 minutes standby C B A B C Stop
Parameters
80Hz
30Hz
ion is limited to act twice within 30 minutes, it is high-load protection alarm.
ature is lower than 45º C, it comes back to normal control.
frequency
Stop C
Frequency A
Frequency B
Frequency C
72Hz
50Hz
Frequency D
When high-load protect
he frequency of high load protection is priority.
When indoor coil pipe temper
T
Domestic Air Conditioner Model:
28
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
e temperature protection
hen air conditioner is running, the discharge temperature need not to be detected within the first 10 minutes and
tarts to detect after 10 minutes. If the detected temperature is found too high, the compressor shall be protected
om damaging by decreasing frequency or stopping, see the following figure for details:
20º C (undetermined)
13º C (undetermined)
08º C (undetermined)
80º C (undetermined)
release
top restore
(compressor restarts)
If stops twice within 30 minutes, the compressor discharge temperature protection
alarms.
No
Th s.
Th after frequency is limited, and the real
line indicates the continuous ascending curve of the discharge temperature after frequency is limited.
1.1
Wurrent
and protect the compressor, the frequency must be reduced or the compressor must be stopped, see the following for
de
7.2
5.8A (undetermined)
5.1
1.1.7.3 Compressor discharg
W
s
fr
1
1
1
normal limit stop (3 minutes stand-by) s
the compressor continuously
te:
e undetermined data are for the example machine type, not for all type
e dotted line indicates the descending curve of the discharge temperature
.7.4 AC over-current protection
hen compressor is running, overhigh current will appear if the system load is heavy. In order to reduce the c
tails:
A (undetermined)
A (undetermined)
f
If continuously
1.1.7.5
When compressor is e will
send over-cu it stops
normal limit reduce unitstops(3minutesstand-by) restore
requency
appears twice within 30 minutes, AC over-current protection alarms.
rren
ru odul
rrent signal of power module” to outdoor computer board to protect it from damaging and the un
Over-cu t protection of the power module
nning, if “ rotation obstacle” appears or the system pressure is too high, the power m
“
Domestic Air Conditioner Model:
29
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
and alarms.
1.1.7.6 erature protection of the outdoor computer board
If the tem he outdoor compute is too high, the system will reduce the frequency or stop the
compressor to protect other components on the computer board from damaging, see the following figure for details:
75º
75º (undetermined)
normal reduce unit stop ( 3 minutes stand-by) restore
frequency
1.1
1.1
W
W
1.1 8.2
When in running, tem
If abnormity
1.1.
Within 30 minute if the upper limit of
high-load acts once m
1.1
Displayed as thermistor abnormity mode respectively after outdoor unit received the abnormal error code signals of
defrosting, discharge temperature, control board and outdoor thermistor.
Re erature sensor abnormity released.
If
1.1 8.5
Di
Ov
ov l rotation.
1.1 abnormity
According to the communication between indoor unit and outdoor unit, it is considered abnormal if outdoor unit
cannot receive signals within 20 seconds after indoor unit’ s sending. (Except for the first 2 minutes after power on).
Overhigh temp
perature of t r board
C (undetermined)
C
.8 Abnormity confirmation alarm
.8.1 Indoor ambient temperature sensor abnormal
hen in running, temperature above 126º C or below -31º C is abnormal.
hen leaving the above ranges, operation resets automatically.
. Indoor coil pipe temperature sensor abnormal
perature above 196º C or below -53º C is abnormal.
When leaving the above ranges, operation resets automatically.
appears, the low-load protection shall be released.
ection
s after on will alarm
ore.
8.3 High-load prot
upper limit of high-load acting, the high-load protecti
.8.4 Outdoor ambient temperature sensor abnormal
setting operation automatically after outdoor unit received the signal of temp
abnormity appears, the low-load protection shall be released.
. Control action of outdoor unit protection
tection of control board, low-voltage protection and compressor abnorma
splaying abnormity confirmation mode since outdoor unit received the following error code:
erhigh temperature protection of air discharge pipe, DC peak current, CT wiring disconnected, AC over-current,
erhigh temperature pro
.8.6 Transmission
Domestic Air Conditioner Model:
30
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
It is regarded as transmission abnormity after outdoor unit receives the signal of transmission abnormity.
Tr is released by running stopping.
1.1
Wmount are not identical.
EEPROM is considered abnormal since the outdoor received the abnormal signal of EEPROM.
g are not accepted.
It
Li
Error display
ansmission abnormity
.8.7 EEPROM
hen power on, EEPROM is abnormal if the control parameters and the checking total a
At the same time, remote control and emergency runnin
is only can be released by power blackout.
st of error code
Abnormity mode Powe
r
Time
r
Run
ning
Indoor Outdoor
Automatic
restore
Abnormity of indoor
thermistor * *
Abnormity of thermal
conversion thermistor * *
Abnormity of defrosting
thermistor **
Abnormity of
or **
control **
dule **
*
discharging thermist
Abnormity of
board thermistor
Abnormity of mo
thermistor
Abnormity of outdoor **
thermistor
Transmission abnormity
*
Compressor running
abnormity
Overhigh discharging
*
temperature protection *
AC current protection *
DC current protection *
Insufficient current
protection *
Outdoor control board
temperature protection *
Module temperature
rising protection *
High-load protection *
CT wiring disconnected
protection *
*
EEPROM abnormity
*
Note: : Flashing
: Blackout
* Indicating that this function
is provided.
: Lightening
Domestic Air Conditioner Model:
31
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
Parameter list of the main components
No. Name Type Unit
Indoor
unit
Outdoor
unit Remarks
1 Optical coupler TLP371 Piece 1 1
2Optical silicon
controlled rectifier TLP3526 Piece 1
3 Rectifying bridge S15VB60 (15A 600V) Piece 2
4 Rectifying bridge SINB60 Piece 1
5 Power module TM-03 Piece 1
6 Relay G4A-1A DC12V (20)A Piece 1 1
7 Ceramic resonator CST10.0MTW-TF01 Piece 1
8 Receiver HS0038A2M Piece 1
Domestic Air Conditioner Model:
32
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
For henomena, please refer to the following table for trouble analysis and troubleshooting:
List of error code:
Error display
the appeared abnormal p
Abnormity mode Po
we
r
nIndoor Outdoor Autom c Possible reason
Ti Ru
mning
er
ati
restore
Abnormity
thermistor
of indoor * * 1. Inserter does not contact well or
control board is not good.
Abnormity of
thermal conversion
thermistor
* * 1. Inserter does not contact well or
control board is not good.
Abnormity of
defrosting thermistor * * 1. Inserter does not contact well or
control board is not good.
Abnormity of
discharging
thermistor
* * 1. Inserter does not contact well or
oard is not good. control b
Abnormity
control board
rm
of
the istor
* * erter does not contact well or
control board is not good.
1. Ins
Abno
du
rmity of
le thermistor mo
1. Inserter does not contact well or
control board is not good.
**
Ab
ou
no
tdo
rmity of
or thermistor *1. Inserter does not contact well or
control board is not good.
*
*1. There is g ence source
around
reat interfer
Tran
no
smission
ab rmity * 2. Incorrect w connection or control
board is not good.
ire
Co
ab
m nning
no
pressor ru
rmity *1 eck if com ressor shaft is seized.
2 hether pow r module is damaged
. Ch
. W
p
e
Over
discharging
temperature
protection
high
*
1 hether system gas is insufficient or
charged gas is too much.
2. hether system voltage is too high
(above242V) or too low (below
187V)
3. Whether capillary tube is blocked.
4. Whether sensors or control board
components are abnormal.
5. Whether the indoor/outdoor ambient
temperature is too high.
. W
W
AC current
protection *
1. Whether system is charged too many
gases.
2. Whether voltage is too low (below
187V).
3. Whether CT or control board
component is abnormal.
Domestic Air Conditioner Model:
33
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
It is regarded as transmission abnormity after outdoor unit receives the signal of transmission abnormity.
Tr is released by running stopping.
1.1
Wmount are not identical.
EEPROM is considered abnormal since the outdoor received the abnormal signal of EEPROM.
g are not accepted.
It
Li
Error display
ansmission abnormity
.8.7 EEPROM
hen power on, EEPROM is abnormal if the control parameters and the checking total a
At the same time, remote control and emergency runnin
is only can be released by power blackout.
st of error code
Abnormity mode Powe
r
Time
r
Run
ning
Indoor Outdoor
Automatic
restore
Abnormity of indoor
thermistor * *
Abnormity of thermal
conversion thermistor * *
Abnormity of defrosting
thermistor **
Abnormity of
or **
control **
dule **
*
discharging thermist
Abnormity of
board thermistor
Abnormity of mo
thermistor
Abnormity of outdoor **
thermistor
Transmission abnormity
*
Compressor running
abnormity
Overhigh discharging
*
temperature protection *
AC current protection *
DC current protection *
Insufficient current
protection *
Outdoor control board
temperature protection *
Module temperature
rising protection *
High-load protection *
CT wiring disconnected
protection *
*
EEPROM abnormity
*
Note: : Flashing
: Blackout
* Indicating that this function
is provided.
: Lightening
Fan motor abnormity *
Domestic Air Conditioner Model:
34
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
Chapter I: Indoor Unit and Main board for Outdoor Unit
Notice:
During operations under any mode, if short circuit, open circuit and other
malfunctions of the temperature sensors are detected, the main engine should
come to a halt immediately.
1. Outdoor-board:
1.1.Forced cooling operation switch:
Short circuit this switch before electrifying, data communication to indoor unit
will be ignored:
Forced cooling will function, the 3-minute delay will be cancelled, and the
following output will be ON simultaneously:
High wind volume (H) for outdoor fan motor;
Compressor operates at the frequency of 80Hz.
1.2.Forced heating operation switch:
Short circuit this switch before electrifying, data communication to indoor unit
will be ignored:
Forced heating will function, the 3-minute delay will be cancelled, and the
following output will be ON simultaneously:
High wind volume (H) for outdoor fan motor;
Compressor operates at the frequency of 80Hz.
CPU checks all A/D ports
B When safeguarding action happens outdoors, the actions in A should be
OFF, and other inputs are independent of the actions in A.
C LED output: Goes along even if safeguarding action happens outdoors;
Cut this switch and go back to the original state. (The out-door safeguarding
action will continue)
Chapter II: Basic Functions
3. Cooling mode
3.1.The four-way valve does not work (not electrified)
3.2.The discharge temperature sensor will not be tested within five minutes
after the compressor is started
3.3.Outdoor fan motor control: The fan motor starts five seconds after the
compressor starts, switching conditions for the two gears of wind volume are
as follows: T ambient temp. <21 , Low wind volume
T ambient temp. >21 , High wind
volume When the fan motor starts up, and
the ambient temperature is at the return difference ( 2 ), it runs at the low
wind volume.
3.4.Compressor control: Frequency range: 30HZ---------120HZ
T ambient temp. <16 , the maximum frequency is
65HZ 16 T ambient temp. 30 the maximum
frequency is 90HZ
30 T ambient temp. 41 the maximum frequency is
110HZ
T ambient temp. 41 the maximum frequency is 85HZ
Actual temperature and frequency maybe adjusted through EEPROM
34
Model:
HFU-09H03/R2(DB)
HFU-12H03/R2(DB)
Domestic Air Conditioner
35
OU
TD
OO
R
U
NIT PART
4.Heating mode
4.1.The four-way valve is electrified 2 seconds after the compressor is
electrified
4.2.Malfunctions of the discharge temperature sensor will not be tested within
five minutes after the compressor is started
4.3.Outdoor fan motor control: The fan motor starts five seconds after the
compressor starts, switching conditions for the two gears of wind volume are
as follows: T ambient temp. <16 , High wind
volume T ambient temp. 16 , Low
wind volume When the fan motor
starts up, and the ambient temperature is at the return difference ( 2 ), it
runs at the low wind volume.
4.4.Compressor control: Frequency range: 30HZ---------120HZ
T ambient temp. >22 , the maximum frequency is 70HZ
9 T ambient temp. 22 the maximum frequency is 90HZ
2 T ambient temp. 9 the maximum frequency is
100HZ
T ambient temp. <2 the maximum frequency is 110HZ
Actual temperature and frequency can be adjusted through EEPROM
4.5.Conditions to enter into the defrosting stage:
A Conditions to enter into the defrosting stage
After the heating operation has begun, and the operation time of the compressor
adds up to 45 minutes (The total operation time of the compressor will be reset
to zero after defrosting or the operating mode switched into cooling), through
examining the defrosting sensor TE (Examining the frosting status of the outdoor
heat exchanger) and the ambient temperature sensor TA, if the following
conditions are met continuously up to 5 minutes, then defrosting operation is
entered:
TE C TA
Of which C TA 0 C=0.8
TA 0 C=0.3
maybe adjusted through EEPROM
For places easy to frost, set as H; For places not easy to frost, set as L; It
is set as M when leaving factory.
Temperature limit to enter into the defrosting stage -15 E C TA 2 E
B Time interval of defrosting
While the calculated data of C TA fall within the range of -15 E C
TA , the time interval between two defrosting operation is 45 minutes
While the calculated data of C TA fall within the range of C TA
-15 E, the time interval between two defrosting operation is 55 minutes
C Defrosting operation
When defrosting begins, the compressor and the outdoor fan motor stops,
and the four-way valve turns OFF 50 seconds later.
The compressor starts and stays at the frequency of 60HZ for 30 seconds,
then operates towards the target frequency (Can be adjusted through
EEPROM)
The current safeguard and the compressor discharge safeguard and
other means of safeguard remain valid while defrosting. If the compressor
35
Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner
36
halts during the defrosting stage, remain still for 30 seconds, then
conducts defrosting operation if it is still within the defrosting stage, the
compressor starts according to the demand of the startup of the
defrosting compressor.
Entering into the defrosting stage, it must be guaranteed that the
minimum operation time of the compressor should amount at least to 2
minutes before exit defrosting.
D. Conditions to exit the defrosting stage
The defrosting operation will return to heating operation if any of the following
conditions is met.
1 The temperature of the outdoor heat exchanger remains above
7 (Can be adjusted through EEPROM) for over 80 seconds
continuously.
2 Keep defrosting operation for 9 minutes (Can be adjusted
through EEPROM) continuously.
E After the condition to exit defrosting operation is met, work as
follows.
The compressor stops, the outdoor fan motor stops 50
seconds later, the four-way valve turns on, the compressor starts
according to the starting process.
Time sequence of the defrosting operation is as follows:
Compressor
Outdoors fan motor
Four-way valve
60 9Max
5.Outdoor condensation temperature control while cooling:
5.1.When the operation frequency F 40HZ, if the temperature of the
outdoor coiled pipe T outdoor coil 52 , decrease the operation frequency
of the compressor by 2Hz then examine the temperature of the outdoor
coiled pipe at 10-second intervals, if T outdoor coil 52 , decrease the
operation frequency further by 2Hz until the frequency is the lowest;
During the frequency-decreasing operation, if 47 T outdoor coil 52 , the
compressor and the fan motor keep their original states;
the compressor runs at the normal operating frequency, and the outdoor fan
motor returns to its original state,
5.2.When the operation frequency F 40HZ, if the temperature of the outdoor
coiled pipe T outdoor coil 57 , decrease the operation frequency of the compressor
by 2Hz then examine the temperature of the outdoor coiled pipe at 10-second
intervals, if T outdoor coil 57 , decrease the operation frequency further by 2Hz
until the frequency is the lowest;
During the frequency-decreasing operation, if 52 T outdoor coil 57 , the
compressor and the fan motor keep their original states;
When T outdoor coil 51 , the compressor runs at the normal operating frequency,
6
Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner
37
and the outdoor fan motor returns to its original state;
The above temperature points, frequency-decreasing step and time interval can
all be adjusted through EEPROM
III. Anti over-loading operation while heating:
5.3.When the operation frequency F 40HZ, if the temperature of the outdoor
coiled pipe T outdoor coil 52 , the outdoor fan motor performs forced high-speed
operation and the operation frequency of the compressor should be decreased by
2Hz then examine the temperature of the outdoor coiled pipe at 10-second
intervals, if T outdoor coil 52 , decrease the operation frequency further by 2Hz
until the frequency is the lowest;
During the frequency-decreasing operation, if 47 T outdoor coil 52 , the
compressor and the fan motor keep their original states;
When T outdoor coil 46 , the compressor runs at the normal operating frequency,
and the outdoor fan motor returns to its original state;
5.4.When the operation frequency F 40HZ, if the temperature of the outdoor
coiled pipe T outdoor coil 57 , the outdoor fan motor performs forced high-speed
operation and the operation frequency of the compressor should be decreased by
2Hz then examine the temperature of the outdoor coiled pipe at 10-second
intervals, if T outdoor coil 57 , decrease the operation frequency further by 2Hz
until the frequency is the lowest;
During the frequency-decreasing operation, if 52 T outdoor coil 52 , the
compressor and the fan motor keep their original states
When T outdoor coil 51 , the compressor runs at the normal operating frequency,
and the outdoor fan motor returns to its original state;
The above temperature points, frequency-decreasing step and time interval can
all be adjusted through EEPROM
6.. Compressor discharge safeguard:
5 minutes after the compressor starts, when the compressor temperature
rises above 105 , decrease the compressor frequency by 2HZ/stop for 10
seconds, until the compressor temperature falls below 90 , the compressor
returns to normal operation;
When the compressor temperature rises above 115 , the compressor
should stop at once, wait until the compressor temperature falls below 90
and the waiting time period exceeds 3 minutes, the compressor returns to
normal operation;
After the compressor restarts, if the compressor temperature rises above
115 once more within 15 minutes, the compressor should stop at once
and give an alarm.
The temperature points are stored in EEPROM
37
Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner
38
WIRING DIAGRAM
39
Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner
40
Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner
B BLACK
BL BLUE
R RED
W WHITE
Y/G YELLOW
OR ORANGE
/GREEN
GR GRAY
SPDU
2
1
The capacitor retains high voltage even after
the plug-off. For your safety, be sure to wait at
least 5 minutes. after plug off and use a tester
to confirm the voltage between connector CN1
and CN2 is less than DC 10V before start
servicing.
DON'T TOUCH CAPACITOR, EVEN AFTER
PLUG-OFF ( DANGER OF ELECTRIC
SHOCK)
WARNING
CAUTION
WIRING DIAGRAM OF OUTDOOR UNIT
INDUCTANCE
COMPRESSOR
4-WAY VALVE
FAN MOTOR
FAN MOTOR
TERMINAL
BLOCK
TO INDOOR UNIT
AMBIENT TEMP.SENSOR
TEMP.SENSOR OF HEAT
COMP.TEMP.SENSOR
FAN MOTOR IS FOR“9000BTU”UNITS
FAN MOT OR I S FO R“12000B TU”UNITS
A
CAPACITOR PCB BOARD
Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner
41
CIRCUIT DIAGRAM
42
Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner
••
•••••••••
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10
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1
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10
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1
2
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+5V
IR
•••••••••
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+5
••
•••
Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner
OUTDOOR UNIT:
43
ABNORMITY DIAGNOSE
44
Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner
.LED output:
Twinkling times of
LED
Possible cause of the malfunction
1 Outdoor temperature sensor abnormity
2 Outdoor defrosting sensor abnormity
3 Compressor discharge temperature abnormity
4 High compressor discharge temperature
5 Indoor-outdoor communication abnormity
6 Abnormal communication to IPDU module
7 E2PROM data abnormity
8 IPDU abnormity: Maximum revolving rate exceeded
9 IPDU abnormity: Vibration
10 IPDU abnormity: Displaced
11 IPDU abnormity: Speeding up abnormity
12 IPDU abnormity: G-TR short circuit
13 IPDU abnormity: Position-testing loop abnormity
14 IPDU abnormity: Current sensor abnormity
15 IPDU abnormity: Compressor locked
16 IPDU abnormity: Compressor damaged
17 IPDU abnormity: Case thermo action
45
Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner
OUTDOOR UNIT PART
TROUBLE SHOOTING
46
Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner
47
Is the air filter dirty? Normally it should be
cleaned every 15 days.
Are there any obstacles before inlet and outlet?
Is temperature set correctly?
Are there some doors or windows left open?
Is there any direct sunlight through the
window during the cooling operation?(Use
curtain)
Are there too much heat sources or too many
people in the room during cooling operation?
Cause or check points
Phenomenon
The system does not restart
immediately.
Noise is heard:
Smells are generated.
Mist or steam are blown out.
Does not work at all.
Multiple
check
Normal
Performance
inspection
Poor cooling
Before asking for service, check the following first.
When unit is stopped, it won't restart
immediately until 3 minutes have elapsed
to protect the system.
When the electric plug is pulled out and
reinserted, the protection circuit will work
for 3 minutes to protect the air conditioner.
During unit operation or at stop, a swishing
or gurgling noise may be heard. At first 2-3
minutes after unit start, this noise is more
noticeable. (This noise is generated by
refrigerant flowing in the system.)
During unit operation, a cracking noise may
be heard. This noise is generated by the
casing expanding or shrinking because of
temperature changes.
Should there be a big noise from air flow in
unit operation, air filter may be too dirty.
This is because the system circulates smells
from the interior air such as the smell of
furniture, cigarettes.
During COOL or DRY operation, indoor unit
may blow out mist. This is due to the sudden
cooling of indoor air.
Is power plug inserted?
Is there a power failure?
Is fuse blown out?
Trouble shooting
Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner
REFRIGERATING-CYCLE DIAGRAM
48
Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner
49
Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner
NOISE LEVEL TEST CHART
& AIR VELOCITY DISTRIBUTION
50
Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner
$ǃNoise level test chart







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G%$







G%$
LQGRRU
XQLW
RXWGRRU
XQLW
Domestic Air Conditioner Model:
51
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
52
Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner Model:
HFU-12H03/R2(DB)
HFU-09H03/R2(DB)
Domestic Air Conditioner
Installation manual
Domestic Air Conditioner Model:
53
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
54
Installation Manual of Room Air Conditioner
Tool necessary
Standard accessories
Following parts shall be field
supplied
Mark Part name
B
C
D
E
F
A
Drain hose
Putty
Insulation material
Connecting hose
Pipe clip
Adhensive tape
Fixing of the unit
1. Position of the wall hole
2. Making a wall hole
Drill a hole of 120x70mm dia. with a little slope towards
outside.
Wall hole should be decided according to installation
place and piping direction.(refer to installation drawings).
Indoor side Outdoor side
Wall hole Thickness
of wall
(Cross section of wall hole)
No. Shape and description QTY
2
1
1
1
1
1
1
4
4
3
Note: There isn't connecting wire with this unit.
1.Screw driver
2.Hacksaw
3.70mm dia. hole core drill
4.Spanner(dia.17,27mm)
6.Pipe cutter
7.Flaring tool
8.Knife
9.Nipper
12.Reamer
10.Gas leakage detector
or soap water
11.Measuring tape
5.Spanner(14,17,27mm)
13.Refrigerant oil
Remote controller
dry battery #7
Drain hose
Putty
Drain-elbow
Rubber pad
Wall hole cover
Refrigerant oil
Wire clip
Self-tapping screw
Domestic Air Conditioner Model:
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
55
Installation Manual of Room Air Conditioner
Forced fastening without careful
centering may damage the
threads and cause a leakage of gas.
Pipe Diameter Fastening torque
Liquid side 6.35mm(1/4") 18N.m
Gas side 9.52mm(3/8")
Gas side 12.7mm(1/2")
42N.m
55N.m
Piping connection of the indoor unit
1. Arrangement of piping and drainage pipe
Remove the cover before working.
Cut away, with a hammer or a saw, the lid for piping according to piping direction.
3. Piping connection
Connecting method
Apply refrigerant oil at half union and flare nut.
To bent a pipe, give the roundness as large as possible not to crash the pipe.
Be careful not to let foreign matters, such as sands enter the pipe.
When connecting pipe, hold the pipe center to center then screw nut on by hand, refer to Fig.
2. Arrangement drain hose
Drain hose shall be placed in under place.
There should be a slope when arrange drain hose. Avoid up and down waves in drain hose.
If humidity is high, drain pipe(especially in room and indoor unit) must be covered with
installation material.
with outdoor unit.
Insert the bound piping connecting electric cable and drain hose through wall hole to connect
together with polyethylene tape.
According to the piping method, connect the piping on indoor unit with union of connection pipe.
Arrange the piping as per the wall hole and bind drain hose connecting electric cable and piping
insulation material
Drain hose
Copper tube
Connecting electric cable for
indoor and outdoor unit
Domestic Air Conditioner Model:
Domestic Air Conditioner Model:
Domestic Air Conditioner Model:
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
56
3. Piping connection of the outdoor unit
Connecting the connecting pipe and inlet and
outlet liquid pipe according to the piping method
Purging Method:
90o
3-way valve
2-way valve
Service port
Open
90ofor 6 sec.
2-way valve 3-way valve
Service port cap
2-way valve
Valve rod cap
Valve rod cap
3-way valve
Tube(for R410A)
3-way valve
Gas Side
9.52mm(3/8")
6.35mm(1/4")
2-way valve
Gaugemanifold(for R410A)
Anti countercurrent joint
Vacuum pump(for R410A)
Liquid Side
12.7mm(1/2")
Installation Manual of Room Air Conditioner
Detach the service port's cap of 3-way valve, the
valve rod's cap for 2-way valve and 3-way's, connect
the service port into the projection of charge hose
(low) for gaugemanifold. Then connect the projection
of charge hose (center) for gaugemanifold into
vacuum pump.
Open the handle at low in gaugemanifold, operate
vacuum pump. If the scale-moves of gause (low)
reach vacuum condition in a moment, check again.
Vacuumize for over 15min. And check the level gauge
which should read -0.1 MPa (-76 cm Hg) at low
pressure side. After the completion of vacuumizing,
close the handle 'Lo' in gaugemanifold and stop the
operation of the vacuum pump.
Check the condition of the scale and hold it for 1-2min.
If the scale-moves back in spite of tightening, make
flaring work again, the return to the beginning of .
Open the valve rod for the 2-way valve to an angle of
anticlockwise 90 degrees.
After 6 seconds, close the 2-way valve and make
the inspection of gas leakage.
No gas leakage?
In case of gas leakage, tighten
parts of pipe connection. If
leakage stops, then proceed
steps.
Detach the charge hose from the service port, open
2-way valve and 3-way. Turn the valve rod anticlockwise
until hitting lightly.
To prevent the gas leakage, turn the service port's
cap, the valve rod's cap for 2-way valve and 3-way's
a little more than the point where the torque increases
suddenly.
After attaching the each caps, check the gas leakage
around the caps.
CAUTION:
1.If the refrigerant of the air conditioner leaks, it is necessary to
discharge all the refrigerant. Vacuumize first, then charge the liquid
refrigerant into air conditioner according to the amount marked on
the name plate.
2.Please do not let other cooling medium, except specified one
(R410A),
or air enter into the cooling circulation system. Otherwise, there will be
abnormal high pressure in the system to make it crack and lead to
personal injuries.
If it does not stop gas leakage, discharge
whole refrigerants from the service port.
After flaring work again and vacuumize,
fill up prescribed refrigerant from the gas
cylinder
Open
Close
3-way valve
2-way valve
9.52mm(3/8")
6.35mm(1/4")
Gas Side
Liquid Side
12.7mm(1/2")
Domestic Air Conditioner Model:
Domestic Air Conditioner Model:
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
57
Installation Manual of Room Air Conditioner
Wiring of indoor unit
Replace cover after wiring.
Pull it out from front.
Pull the cable gently to make sure it is tight.
Insert the cable from outside the wall hole where piping already exist.
Loose terminal screw and insert cable end fully into terminal block, then tighten it
Indoor unit
Outdoor unit
White
Black
Red
Yellow/Green
power
1(N) L
N
2(L) 3(C)
Electric wiring
Note:
Electric wiring must be done by qualified person.
Use copper wire only.
The parameter of the connecting cable is H05RN-F or H07RN-F
HFU-09H03/R2(DB) :3G1.5mm2+1x0.75mm2
HFU-12H03/R2(DB) :3G2.5mm2+1x0.75mm2
Note: When additional refrigerant is necessary, first purge air out of connecting pipe by external gas,
then drive out the excessive refrigerant by purging method..
Brand new unit is charged 80g more refrigerant than spec. This is only for first installation to purge air
in the indoor unit and connecting pipe.
When piping is longer than 5m, change additional refrigerant specified in this list.
Pipe length
Refrigerant charge(g)
5m 10m 15m
90 180
Terminal block
Wire clip
Wire loop
Wiring of outdoor unit
Pull it out from front.
Insert the cable from inside the wall hole where piping already exist.
Loose terminal screw and insert cable end fully into terminal block, then tighten it
Pull the cable gently to make sure it is tight.
Replace cover after wiring.
Note:
When connecting indoor and outdoor wire, check the number on indoor and outdoor terminal
blocks. Terminals of same number and same color shall be connected by the same wire.
Incorrect wiring may damage air conditioner's control or cause operation failure.
Domestic Air Conditioner Model:
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
HFU-09H03/R2(DB)
HFU-12H03/R2
(
DB
)
58
Installation Manual of Room Air Conditioner
Flare tooling die
Correct Incorrect
Lean Damage of flare Crack Partial Too outside
A
Liquid side
Gas side
Gas side
Pipe diameter Size A (mm)
6.35mm(1/4")
9.52mm(3/8")
12.7mm(1/2")
0.8~1.5
1.0~1.8
1.2~2.0
Others
1. Power supply
2. Piping cutting and flaring
Insert flaring tool to make a flare
Be sure to carry out deburring after cutting with a pipe cutter.
Air conditioner must use an exclusive line(over 20A) and there is not power plug with this type,
the type of power supply wire is HF05VV-3G2.5mm2.
For installation in other places, use circuit breaker as for as possible.
leakage.
When installation air conditioner in a wet place, try to use a circuit breaker against current
Installation inspection and test run:
Please operate unit according to this Manual
Are there any gas leakage?
Is room temp. regulator normal?
Is cooling operation normal?
Is control display normal?
Is there any noise?
Is drainage securely carried out?
Is earth line(grounding) securely connected?
Is power supply voltage abided by the code?
Is electric wiring of indoor and outdoor securely fixed?
How is insulation at piping connection carried out?
Are electric wires of indoor and outdoor unit firmly inserted into terminal block?
Items to be checked during test run. Please made a " " in " "
Domestic Air Conditioner Model:
Sincere Forever
Haier Group
Haier Industrial Park, No.1, Haier Road
266101, Qingdao, China
http://www.haier.com

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