Haier HCFU-42CF03 User manual

Commercial Air Conditioning
SERVICE MANUAL
Model
zFeatures
zLong distribution pipe and high drop
zAuto-check function
zFlexible and easy installation
zFresh air hole, more natural, more healthy
zInfrared remote controller & wired controller
ƽOptional safety devices and much more precision control device
Manual code: SYJS-007-06REV.1Edition: 2006-07-21
HCFU-42CF03 HCFU-42HF03

Commercial Air Conditioner Model: HCFU-42CF03
HCFU-42HF03
2
CONTENTS
Contents………………………………………………………...2
1. Description of products & features………………………..3
2. Specification…………………………………………………6
3. Safety precaution……………………………………………9
4. Net dimension of indoor and outdoor……………………..11
5. Installation instructions………..……………………………13
6. Parts and functions…………………………………………24
7. Remote controller functions……………………………….25
8. Refrigerant diagram………………………………………...37
9. Electrical control functions…………………………………39
10. Diagnostic information (trouble shooting)……………….45
11. Electrical data………………………………………………49

1.DESCRIPTION OF PRODUCTS & FEATURES
1.1. Products code explanation
HCFU---18 H F 03
Applicable voltage: 03 stands for 200-220V/50Hz
Design number
Product type: H stands for heat pump type, C stands for cool
only type, E stands for electric heating type
Cooling / Heating capacity,18=18000BTU/h
Product type : “B” stands for cassette type, “CF” stands for
convertible type, ”D” stands for duct, “P” stands for cabinet
type, ”Q” stands for chiller system, "E" stands for ceiling
concealed type, “U” stands for outdoor unit
Haier
1.2 Brief Introduction for T1
ǃ
T2
ǃ
T3 working condition
1.3 Operating Range of Air Conditioners
Temp. Mode Rated Maximum Minimum
DB ć27 32 18
Indoor
WB ć19 23 14
DB ć35 43 10
Cooling
Outdoor
WB ć24 26 6
DB ć20 27 15
Indoor
WB ć14.5 --- --
DB ć7 24-7
Heating
Outdoor
WB ć6 18 ---
Climate type
Type of Air
Conditioner T1 T2 T3
Cooling Only 18 ć~43ć10ć~35ć21ć~52ć
Heat pump -7ć~43ć-7ć~35ć-7ć~52ć
Electricity Heating ~43ć~35ć~52ć
Commercial Air Conditioner Model: HCFU-42CF03
HCFU-42HF03
3

1.4 Products line up
1.4.1 Outdoor unit
Commercial Air Conditioner Model: HCFU-42CF03
HCFU-42HF03
4
HCFU-42CF03
HCFU-42HF03

1.5 Product features
1.5.1 Outdoor unit .
Flexible and easy installation
The outdoor can meet the higher request of installation. From the specifications, you will find for
each unit, how long and how high the piping will be, which will be convenient for design and installation.
Optional safety devices and much more precision control device
a. Ambient temperature sensor, coil temperature sensor and compressor temperature sensor
make the temperature control and defrosting control more precise.
b. High/low pressure switch can feel the discharging pipe pressure and suction pipe pressure on
time and precisely. If the pressure is too low or too high, it will stop the compressor to prevent it
being damaged for the sake of pressure.
c. 3 minutes delay protection for the compressor, the device can protect the compressor from
some damages and make the compressor have a long life.
Silent operation
New design of long piping length and large drop
1.5.2 Decent convertible indoor unit
Optional installation mode
The indoor unit can be installed on the floor or to the ceiling, it is determined by the host favor and
the room décor. It is more convenient to service and installation.
Silent operation
The convertible unit is equipped with a high efficient, smooth, multi-blade centrifugal fan, which
generates a powerful but gentle airflow to any corner in the room.
Space-saving design
An innovative fan and the ultra thin heat exchanger result in the ultra thin convertible unit. Fully
adjustable mounting brackets make it possible to install the unit enven in the tightest places. Less than
199mm (for HDU-18) of vertical direction are required for installation.
Large angle air supplying
I00º wide angle louvers and 70º wide angle blades design to make a precise control of the airflow,
it equably distributes the comfortable air to every coner of the room
Automatically control of airflow direction for fast temperature adjusting
Central control function, if connected with a central controller
Commercial Air Conditioner Model: HCFU-42CF03
HCFU-42HF03
5

2. SPECIFICATION
Commercial Air Conditioner Model: HCFU-42CF03
HCFU-42HF03
6
Function coolin
g
heatin
g
Capacity BTU/h 42000 /
Capacity kW 12.3 /
Sensible heat ratio 75% /
W4600 /
W5700 /
EER or COP W/W 2.67 /
Dehumidifying capacity 10ϋ³×m³/h
Power cable section
Signal cable section
Connecting cable section
Wired control cable for wired control unit section //
Power source N, V, Hz
A / A
Start Current A
Class of anti electric shock ǂI/
Circuit breaker A 30 /
Max. operating pressure of heat side Mpa 2.8 /
Max. operating pressure of cold side Mpa 2.8 /
Unit model (color)
Type × Number
Speed(H-M-L) r/min
Fan motor output power kW
Air-flow(H-M-L) m³/h
Type / Diameter mm
Total Area m²
Temp. scope ć
External ˄L×W×H˅mm×mm×mm
Package ˄L×W×H˅mm×mm×mm
Air sending angle //
Drainage pipe (material , I.D./O.D.) mm
Control type (Remote /wired /model)
Fresh air hole dimension mm
Outlet distribution hole dimension mm
kW
dB(A)
kg / kg
External ˄L×W×H˅mm×mm×mm
Package ˄L×W×H˅mm×mm×mm
kg / kg
Unit model (color)
Model / Manufacture
Oil model
Oil type
Oil charging
Type
Protection type
Starting method
Type × Number
Speed r/min
Fan motor output power kW
Air-flow(H-M-L) m³/h
Type / Diameter mm
Row / Fin pitch
Temp. scope ć
External ˄L×W×H˅mm×mm×mm
Package ˄L×W×H˅mm×mm×mm
Drainage pipe (material , I.D./O.D.) mm
Refrigerant control method mm/mm
Volume of Accumulator L
Noise level dB(A)
material of reduce noise
crankcase heater power W
kg / kg
Type / Charge g
Recharge quantity g/m
Liquid mm
Gas mm
Connecting Method
m
m
4×0.75mm2
SUNISO 4GSDID-K/DAPHNE SE56P
1500-1700
/
/
0.808(1350*252*39.9)
2000/1800/1600
/
2-7
1710*790*315
Fan
Heat exchanger
Fan
Dimension
Compressor
Weight (Net / Shipping)
Dimension
Refrigerant
/
/
55
/
64
740±50
SCROLL
Defrosting Automatic
/
Axial × 1
/
Capillary tube
Weight (Net / Shipping) 92/100
Type of Four way valve /
/
MAX.Drop 30
MAX.Pi
p
in
g
len
g
th 50
Heat exchanger
inner grooved pipe/ij9.52
PIPING
R22/2500G
/
Pipe 9.52
19.05
Flared
Between I.D &O.D
Outdoor unit
HCFU-42CF03
(
OUTDOOR
)
˄WHITE˅
Weight (Net / Shipping) 54/61
Panel
Dimension 1008×830×410
1130×930×490
2 /
cooling: 43~60 / heating: 6~7
Centrifugal × 1
0.156
6000
inner grooved pipe/ij7
ǂJT160BCBY1L DAKIN
/
/
Inner thermal protection
hard startup
1580*700*240
ǂREMOTE
0.14
item Model HCFU-42CF03
4.7
ǂ5G×2.5mm2
Total power input
Max. power input
Running /Max.Running current
Norminal condition: indoor temperature (cooling): 27 ćDB/19ćWB, indoor temperature (heating): 20 ćDB
Outdoor temperature(cooling): 35ćDB/24ćWB, outdoor temperature(heating): 7 ćDB/6ćWB
The noise level will be measured in the third octave band limited values, using a Real Time Analyser calibrated sound intensity meter. It is a sound pressure noise level. The
detailed method please refer to the following information:
ǂ1200±50/1100±50/950±50r/min
3ˈ380-400ˈ50
Indoor unit
HCFU-42CF03(INDOOR)˄WHITE˅
Noise level (H-M-L)
Electricity Heater
ǂcooling 8.5/9.3
50
PVC26/32

Commercial Air Conditioner Model: HCFU-42CF03
HCFU-42HF03
7
Function coolin
g
heatin
g
Capacity BTU/h 42000 48000
Capacity kW 12.3 14.06
Sensible heat ratio 75%
W4600 4600
W5540 5220
EER or COP W/W 2.67 3.06
Dehumidifying capacity 10ϋ³×m³/h
Power cable section
Signal cable section
Connecting cable section
Wired control cable for wired control unit section //
Power source N, V, Hz
A / A
Start Current A
Class of anti electric shock ǂIǂI
Circuit breaker A 30 30
Max. operating pressure of heat side Mpa 2.8 2.8
Max. operating pressure of cold side Mpa 2.8 2.8
Unit model (color)
Type × Number
Speed(H-M-L) r/min
Fan motor output power kW
Air-flow(H-M-L) m³/h
Type / Diameter mm
Total Area m²
Temp. scope ć
External ˄L×W×H˅mm×mm×mm
Package ˄L×W×H˅mm×mm×mm
Air sending angle //
Drainage pipe (material , I.D./O.D.) mm
Control type (Remote /wired /model)
Fresh air hole dimension mm
Outlet distribution hole dimension mm
kW
dB(A)
kg / kg
External ˄L×W×H˅mm×mm×mm
Package ˄L×W×H˅mm×mm×mm
kg / kg
Unit model (color)
Model / Manufacture
Oil model
Oil type
Oil charging
Type
Protection type
Starting method
Type × Number
Speed r/min
Fan motor output power kW
Air-flow(H-M-L) m³/h
Type / Diameter mm
Row / Fin pitch
Temp. scope ć
External ˄L×W×H˅mm×mm×mm
Package ˄L×W×H˅mm×mm×mm
Drainage pipe (material , I.D./O.D.) mm
Refrigerant control method mm/mm
Volume of Accumulator L
Noise level dB(A)
material of reduce noise
crankcase heater power W
kg / kg
Type / Charge g
Recharge quantity g/m
Liquid mm
Gas mm
Connecting Method
m
m
Norminal condition: indoor temperature (cooling): 27 ćDB/19ćWB, indoor temperature (heating): 20 ćDB
Outdoor temperature(cooling): 35ćDB/24ćWB, outdoor temperature(heating): 7 ćDB/6ćWB
The noise level will be measured in the third octave band limited values, using a Real Time Analyser calibrated sound intensity meter. It is a sound pressure noise level.
The detailed method please refer to the following information:
ǂ1200±50/1100±50/950±50r/min
3ˈ380-400ˈ50
Indoor unit
HCFU-42HF03(INDOOR)˄WHITE˅
Noise level (H-M-L)
Electricity Heater
cooling 8.8/9.6 heating8.6/9.2
50
PVC26/32
1580*700*240
ǂREMOTE
0.14
item Model HCFU-42HF03
4.7
ǂ5G×2.5mm2
Total power input
Max. power input
Running /Max.Running current
Centrifugal × 1
0.016
6000
inner grooved pipe/ij7
Outdoor unit
HCFU-42HF03
(
OUTDOOR
)
˄WHITE˅
Weight (Net / Shipping) 54/61
Panel
Dimension 1250×340×948
1350×410×1090
2 /
cooling: 43~60 / heating: 6~7
Heat exchanger
inner grooved pipe/ij9.52
PIPING
R22/2800
/
Pipe 9.52
19.05
Flared
Between I.D &O.D MAX.Drop 30
MAX.Pi
p
in
g
len
g
th 50
Weight (Net / Shipping) 106/111
Type of Four way valve /
/
Defrosting Automatic
/
Axial × 1
ǂJT160BCBY1L DAKIN
/
/
Inner thermal protection
hard startup
/
Capillary tube
Refrigerant
/
/
55
47
62
840±50
SCROLL
Fan
Heat exchanger
Fan
Dimension
Compressor
Weight (Net / Shipping)
Dimension
6×0.75mm2
SUNISO 4GSDID-K/DAPHNE SE56P
1500-1700
/
/
0.808(1350*252*39.9)
2000/1800/1600
/
2-7
1710*790*315

Commercial Air Conditioner Model: HCFU-42CF03
HCFU-42HF03
8
Note: Ĵis the real time
analyser position
outdoor unit:
1.air outlet from side: the noise level is the average sound pressure level measured from front, left, right directions.
2.air outlet from top: the noise level is the average sound pressure level measured from front, back, left, right directions.
measured point:
H ( height to the ground) = (h (unit height) + 1m) /2
and, it is 1m to each side.
Installation state: the unit should be placed on the flat floor or be mounted in horizontal direction.
Testing method:
mounting-on-ceiling unit:
1m
1m
h
1m
1m
1m
1m

3. Safety precaution of indoor and outdoor
Commercial Air Conditioner Model: HCFU-42CF03
HCFU-42HF03
9
Carefully read the following information in order to operate the airconditioner correctly.
Below are listed three kinds of Safety Cautions and Suggestions.
WARNING!
CAUTI N! Incorrect operations may result in injuries or machine damages; in some cases may
cause serious consequences.
Incorrect operations may result in severe consequences of death or serious injuries.
INSTRUCTI NS: hese information can ensure the correct operation of the machine.
Be sure to conform with the following important Safety Cautions.
The Safety Cautions should be at hand so that they can be checked at any time when needed.
If the conditioner is transferred to the new user, this manual should be as well transferred to the new user.
WARNING!
If any abnormal phenomena is found
(e. g.smell of firing), please cut off the
power supply immediately, and contact
the dealer to find out the handling
method.
Don't dismantle the outlet of the
outdoor unit.
he exposure of fan is very dangerous
whichmay harm human beings.
switch
off
In such case, to continue using the
conditioner will damage the conditioner,
and may cause electrical shock or fire
hazard.
Incorrect maintenance and repairment
may cause water leak, electrical shock
and fire hazard.
When need maintenance and repairment,
call dealer to handle it.
After a long time use of air-conditioner
the base should be checked for any
damages.
If the damaged base is not repaired, the
unit may fall down and cause accidents.

Commercial Air Conditioner Model: HCFU-42CF03
HCFU-42HF03
10
Air-conditioner can't be installed in
the environment with inflammable
gases because the inflammable gases
near to air-conditioner may cause fire
hazard.
Connect earthing wire.
Use discharge pipe correctly to ensure
efficient discharge.
Earthing wire should not be con-
nected to the gas pipe, water pipe,
lightning rod or phone line, in-correct
earthing may cause shock.
Incorrect pipe use may cause water
leaking.
Earthing
WARNING!
Installed electrical-leaking circuit
breaker.
It easily cause electrical shock without
circuit breaker.
Please let the dealer be responsible for
installing the conditioner.
Incorrect installation may cause water
leak, electrical shock and fire hazard.
Call the dealer to take measures to
prevent the refrigerant from leaking.
If conditioner is installed in a small
room be sure to take every measure in
order to prevent suffocation accident
even in case of refrigerant leakage.
When conditioner is deinstalled or
reinstalleddealer should be responsible
for them.
Incorrect installation may cause water
leaking, electrical shock and fire hazard.
No goods or nobody is permitted to
placed on or stand on outdoor unit.
he falling of goods and people may
cause accidents.
Don't operate the air-conditioner with
damp hands.
Otherwise will be shocked.
nly use correctly-typed fuse.
May not use wire or any other materials
replacing fuse, other-wise may cause
faults or fire accidents.

4. Net dimension of indoor and outdoor
4.1 Indoor unit
Commercial Air Conditioner Model: HCFU-42CF03
HCFU-42HF03
11
224
D=50 D=200
D=47
D=47
D=47
D=47
90
155
D=25
60
300
40
440 D=47
150
95
D=47 D=47 D=47
D= 200
114
36
55
90
495
598
285
640
570
240
700
1580

HCFU-42CF03
Commercial Air Conditioner Model: HCFU-42CF03
HCFU-42HF03
12
410
Power wiring terminal
20
20
60
1006
70
180
447
825
!
180
!
646
!
!
!
4.2 Outdoor unit
HCFU-42HF03
185 185
30
52
88
Screw Hole
(M10)
580
950
Power wiring Terminal
70
1818
340
380
1250
25

5INSTALLATION INSTRUCTIONS
Commercial Air Conditioner Model: HCFU-42CF03
HCFU-42HF03
13
WARNING !
CAUTI N !
Please ask the dealer or specialist to install, never try by the users themselves. After the installation please
be sure of the following conditions.
Incorrect installation may cause water leaking, shock and fire hazard.
Please call dealer to install the air-conditioner.
Air-conditioner can't be installed in the
envi-ronment with inflammable gases
because the inflammable gases near to
air-conditioner may cause fire hazard.
Installed electrical-leaking circuit breaker.
Connect earthing wire.
Use discharge pipe correctly to ensure efficient
discharge.
[Location]
[Wiring]
[ perating noise]
It easily cause electrical shock without circuit
breaker.
Air-conditioner should be located in well-vented
and easily-accessible place.
Air-conditioner should not be located in the
following places:
(a) Places with machine oils or other oil
vapours.
(b) Seaside with high salt content in the air.
(c) Near to hot spring with high content of
sulfide gases.
(d) Area with frequent fluctuation of voltage
e.g. factory, etc.
(e) In vehicles or ships.
(f) Kitchen with heavy oil vapour or humidity.
(g) Near to the machine emitting electric-
magnetic waves.
(h) Places with acid, alkali vapuor.
V, radio, acoustic appliances etc are at least
Earthing wire should not be con-
nected to the gas pipe, water
pipe, lightning rod or phone line,
incorrect earthing may cause
Incorrect pipe use may cause water leaking.
supply wire, connecting wire, pipes, otherwise images
may be disturbed or noises be created.
As required, take measures against heavy snow.
Air-conditioner should be equipped with special power
supply wire.
Choose the following locations:
(a) Capable of supporting air-conditioner weight,don't
increase operating noise and vibration.
(b) Hot vapour from outdoor unit outlet and operating
noise don't disturb neighbour.
No obstacles around the outdoor unit outlet.
Earthing
For authorized service personnel only
WARNING
(1) For the room air conditioner to operate satisfactorily, install it as outlined in this installation manual.
(2) Connect the indoor unit and outdoor unit with the room air conditioner piping and cords available
from our standard parts. his in stallation manual describes for the correct connections so that the
installation set available from our standard parts should be used.
(3) Installation work must be performed in accordance with national wiring standardsby authorized
personnel only.
(4) Never cut the power cord, lengthen or shorten the cord, or change the plug.

Commercial Air Conditioner Model: HCFU-42CF03
HCFU-42HF03
14
SELECTING THE M UNTING P SITI N
WARNING
CAUTI N
Be careful not to scratch the room air conditioner when handing it.
After installation, explain correct operation to the customer, according to the operating manual.
Let the customer keep this installation manual because it will be used when the room air conditioner is
serviced or moved.
(5) Also, do not use an extension cord.
(6) Plug in the power cord plug firmly. If the receptacle is loose, repair it before using the air conditioner.
(7) Do not turn on the power until all installation work is done.
Do not install where there is the danger of combustible gas leakage.
Do not install near heat sources.
If children under 10 years old may approach the unit, take preventive measures so that they cannot
reach the unit.
Install at a place that can withstand the weight of the indoor units and install positively so that the units
will not topple or fall.
(1) Install the indoor unit level on a strong wall which is not subject to vibration.
(2) he inlet and outlet ports should not be obstructed : the air should be able to blow all over the room.
(3) Do not install the unit where it will be exposed to direct sunlight ,
(6) ake servicing , etc.into consideration and leave the spaces shown in (Fig.1 or 2) .
Also install the unit where the filter can be removed .
(4) Install the unit where connection to the outdoor unit is easy.
(5) Install the unit where the drain pipe can be easily installed.
0.4"(10mm)
over
For mounted on the ceiling:
Ceiling
INDOOR UNI
3"(80mm)
over
6"(150mm)
over
Fig. 1
For half concealed installation:
3"(80mm)
over
6"(150mm)
over
Ceiling panel
Fig. 2
INDOOR UNI

Commercial Air Conditioner Model: HCFU-42CF03
HCFU-42HF03
15
Optional parts
ACCESS RIES
Standard accessories:
INSTALLATI N PR CEDURE
Install the room air conditioner as follows:
CONNEC ION PIPE REQUIREMEN
1) REM VE THE INTAKE GRILL AND SIDE C VER
(1) Remove the two Air filters
Ceiling panel
Mark Parts name
Adhesive tape
Saddle (L.S) with screws
Drain hose
Heat insulation material
Piping hole cover
Putty
Plastic clamp
A
B
C
D
E
F
G
1
2
3
4
5
1
2
4
1+1
2+2
No. Accessory parts Qty.
Remote controller
Battery
Wire clamp
Heat
insulation
sheathing
Screw
Screw cap
Remote
controller
bracket
6
7
1
1+1
Remarks
Drain hose 1
9
88
Flat washer
(2) Remove the two intake grilles
(3) Remove the Side cover A (Right and left side)
(4) his air conditioner can be set up to intake fresh air .
For information about how to install for fresh-air intake, refer to
page 22 "FRESH-AIR IN AKE".
Side cover A (Right side)
Side cover A (Left side)
Intake grille
Air filter
0.4"(10mm)
over
Ceiling panel
Model
Diameter
Liquid side Gas side
Maximum
length
Maximum height
(between indoor
and outdoor)
9.52 mm 19.05mm 50 m 30 m
9.52 mm 15.88mm 30 m 20 m
For series 362, 482
For series 282

Commercial Air Conditioner Model: HCFU-42CF03
HCFU-42HF03
16
2) LOCA ION OF CEILING SUSPENSION BOL S
For half-concealed installation
Supension-bolt pitch should be as shown in Fig.4.
Ceiling Opening:1530mm
40mm 40mm
Ceiling panel
Suspension bolt should
extend outward 30 to 50mm.
Ceiling Opening:640mm
Ceiling panel
15mm
Suspension bolt should
extend outward 30 to 50mm.
Suspension bolt pitch 1530mm
30mm 30mm
INDOOR UNI ( OP VIEW)
Dimensions
(Space Required for
installation)
10mm
155mm
300mm
Fig. 3
Fig. 4
DRILLING HE HOLES AND A ACHING HE SUAPENSION BOL S
IF USING ANCHOR BOL S
(1) Drill holes for anchor bolts at the locations at which you will set the suspension bolts.Note that anchor
bolts (to be obtained locally).
(2) Install the anchor bolts ,then temporarily attach special nut "B" (included) and a locally-procurde M10
nut to each of the bolts. (See Fig.6.)
(1) Drill 25mm-diameter holes at the suspension-bolt locations.
( he two special nuts are provided with the unit. he M10 nut must be obtained locally.) Refer to Fig.5.
(2) Install the bolts, then temporarily attach Special nuts A and B and a normal M10 nut to each bolt.
Ceiling panel
10 to 15 mm
Special nut A (included)
M10 nut (Obtained locally)
Special nut B (included)
Bolt Strength 980 to 1470 N (100 O 150 kgf)
Fig. 5
Anchor-Bolt Strength 980 to 1470 N (100 O 150 kgf)
M10 Nut
(Obtaied locally)
Special nut B
(included)
10 to 15 mm
M10 Nut
(Obtaied locally)
Fig. 6

Commercial Air Conditioner Model: HCFU-42CF03
HCFU-42HF03
17
INSTALLING THE C UPLER HEAT INSULATI N
After checking for gas leaks, insulate by wrapping insulation around the two parts (large and small) of the
indoor unit coupling, using the coupler hest insulation.
After installling the coupler heat insulation, wrap both ends with vinyl tape so that there is no gap.
Secure both ends of the heat insulation material using nylon fasteners.
INSTALLING THE IND R UNIT
(1) Lift unit so that suspension bolts pass through suspension fittings at the sides (four places),and slide
the unit back.(See Fig.8.)
FOR HALF-CONCESLED INS ALLA ION
In order to check the drainage, be sure to use a level during installation of the
indoor unit. If the installation site of the indoor unit is not level, water leskage
may occur
CAUTI N
When installing the indoor unit in a semi-concesled orientation, make sure to reinforce the insulation of
the unit on all sides. Drops of water may fall from the unit if it is not thoroughly insulated.
Glass wool insulate
(10 to 20mm thick )
INDOOR UNI
( op view)
Wall
Ceiling pannel
(2) Fasten the indoor unit into place by tightening-up the special "B",blots and the M10 nuts. Make sure
that unit is secure and willl not shift back and forth.
Fig. 9
Ceiling panel
Wall
Wall
Ceiling
Fig. 7 Fig. 8

Commercial Air Conditioner Model: HCFU-42CF03
HCFU-42HF03
18
When using an auxiliary pipe, make sure that the fastener used is insulated in the sane way.
Indoor unit
Nylon fastner (large)
Nylon fastner (small)
No gap
Coupler heat insulation
DRAIN PIPING
Install the drain pipe with downward gradient (1/50 to 1/100) and so there are no rises or traps in the pipe.
Use general hard polyvinyl chloride pipe (VP25)[outside diameter 38 mm.]
During installation of the drain pipe,be careful to avoid applying pressure to the drain point of the unit.
When the pipe is long,install supporters(Fig 11).
Do not perform air bleeding.
Always heat insulate (8mm or over thick) the indoor side of the drain pipe.
BAD BAD
Bracket 5 to 6.5 ft
(1.5 to 2m)
Fig. 11
Coupler heat insulation(large)
Coupler pipe (large)
Coupler pipe (small)
Coupler heat insulation(small)
Indoor unit
Fig. 10
G D

Commercial Air Conditioner Model: HCFU-42CF03
HCFU-42HF03
19
(1) Install insulation for the drain pipe.(See Fig.12 and 13)
Cut the included insulation material to an appropriate size and adhere it to the pipe.
Insulation for Drain pipe
( o be obtained locally.Length
shoud be at least 8mm)
Indoor unit(drain port)
Drain pipe insulation
Drain pipe
Indoor unit
No gap 10mm or over
Drain pipe
Drain pipe insulation
(2) If "Right rear piping ":fasten the drain pipe with V wires so that the pipe slopes
correctly within the indoor unit.
Fig. 12
Fig. 13
ELECTRICAL WIRING
H W T C NNECT WIRING T THE TERMINALS
(1)Cut the wire and with a wire cutter or wire-cutting pliers,then strip the insulation to about 15/16"(25mm)
of expose the solid wire.
(2)Using a screwdriver ,remove the terminal screw(s) on the terminal board.
(3)Using pliers,bend the solid wire to form a loop suitable for the terminal screw.
B.For strand wiring
(1)Cut the wire and with a wire cutter or wire-cutting pliers,then strip the insulation to about 3/8"(10mm)
of expose the solid wire.
(2)Using a screwdriver ,remove the terminal screw(s) on the terminal board.
A.For solid core wiring (or F-cable)
Indoor unit (rear view)
V wire
Drain hose
Fig. 14

Commercial Air Conditioner Model: HCFU-42CF03
HCFU-42HF03
20
Insulation tube
Cord clamp
Use VW-1, 0.5 to 1.0 mm thick, PVC tube as the insulation tube.
CAUTI N
(1) Match the terminal block numbers and connection cord colors with those of the
outdoor unit. Erroneous wiring may cause burning of the electric parts.
(2) Connect the connection cords firmly to the terminal block. Imperfect installation
may cause a fire.
(3) Always fasten the outside covering of the connection cord with the cord clamp.
(If the insulator is chafed, electric leakage may occur.)
(4) Always connect the ground wire.
ELECTRICAL REQUIREMENT
Electric wire size and fuse capacity:
Fig. 16
After passing the connection cord and power cable through the insulation tube, fasten it with the cord
clamp, as shown in Fig.16
H W T FIX C NNECTI N C RD AND P WER CABLE AT THE C RD CLAMP
Screw with
special washer
Round
terminal
Wire
erminal
block
Screw with
special washer
Round
terminal
Wire
A. Solid wire
B. Strand wire
Round terminal
Loop
Insulation
Strip 15/16"(25mm) Strip 15/16"(25mm)
Fig. 15
30
Item
Model Phase Switch breaker
(A)
Circuit breaker
Overcurrent
protector
Power
source wire
size (mm
2
)
1 40 26 6.0
Switch
breaker
Earth leakage breaker
Leak
current(mA)
40
For series
282
3 30 4.0 3020 20
For series
362, 482
Select wire sizes and circuit protection from table below. ( his table shows 20 m length wires
with less than 2% voltage drop.)