HSU-18HEK03/R2
Indoor unit
Outdoor unit
)
L
(
1
)43
N
(
2
HSU-18HEA03/R2
1. If the supply cord is damaged, it must be replaced by the manufacturer or its
service agent or a similar quali
ed person. The type of connecting wire is
H05RN-F
or H07RN-F.
2.IfthefuseonPCboardisbrokenpleasechangeitwiththe
type of
T. 3.15A /250V.
3.Thewiringmethodshouldbeinlinewiththelocalwiringstandard.
4. After installation, the power plug should be easily reached.
5. A breaker should be incorporated into
xed wiring. The breaker should be
all-pole
switch and the distance between its two contacts should be not less
than 3mm.
HSU-18HV03/R2
HSU-14HR03/R2
HSU-18HR03/R2
Outdoor unit
4
HSU-18RE03/R2
HSU-22RE03/R2
HSU-18HRA03/R2
HSU-18RH03/R2
)
L
(
1
)
N
(2
Power cable: 1.5mm
2
(For: L N )+2x0.75mm
2
Power cable: .5mm
2
5mm
2
Connecting wiring:
Outdoor unit
Indoor unit
A
B
Outdoor unit
Indoor unit
A
B
A
B
Outdoor unit
Indoor unit
Oil trap
Outdoor unit
Install according to Drawing for the installation of indoor and
outdoor units
To bend a pipe, give the roundness as large as possible not to crush the pipe ,
andthebendingradiusshouldbe30to40
mm or longer.
Connecting the pipe of gas side
rst makes working easier.
TheconnectionpipeisspecializedforR410A.
Use the same method on indoor unit. Loosen the screws on
terminal block and
insert the plugs fully into terminal block, then tighten the screws.
Insert the cable according to terminal number in the same manner as the indoor
unit.
If wiring is not correct, proper operation can not be carried out and controller
may be damaged.
Fix the cable with a clamp.
Installation of Outdoor Unit
Half union
Flare nut
Torque wrench
CAUTION
Becarefulthatmatters,suchaswastesofsands,etc.shallnotenterthepipe.
Thestandardpipelengthis5m.Ifitisover7m,thefunctionoftheunitwillbe
affected. If the pipe has to be lengthened, the refrigerant should be charged,
according to 20 g/m. But the charge of refrigerant must
be conducted by profes-
sional air conditioner engineer. Before adding additional refrigerant, perform air
purging from the refrigerant pipes and indoor unit using a vacuum pump,then
Spanner
Forced fastening without careful centering may
damage the threads and cause a leakage of gas.
Pipe Diameter( ) Fastening torque
Liquid side6.35mm(1/4") 18N.m
Liqui
sside9.52mm(3/8") 42N.m
as side 12.7mm(1/2") 55N.m
as side 15.88mm(5/8") 60 N.m
Max.Elevation:
In case the elevation A is more
than 5m, oil trap shoud be
installed every 5~7m
Max. Length:
Incasethepipelength B is
more than 7m, the refrigerant
should be charged, according
to 20 g/m.
Connection of pipes
charge additional refrigerant.
Connection
If the drain-elbow is used,
please attach it as gure. (Note:
Onlyforheatpumpunit.)
Detachtheserviceport’scap of
1.
3-way valve, the valve rod’s cap for 2-way valve
and3-way’s,connecttheserviceportintothe
projection of charge hose (Iow)
for gaugemanifold.
Then connect the projection of charge hose (center) for gau-
gemanifold into vacuum pump.
Open the handle at Iow in
2.
gaugemanifold, operate vacuum pump. If the scale-
moves of gause (Iow) reach vacuum condition in a moment, check 1. again.
Vacuumize for over 15min.And check the level gauge which should read -0.1MPa
3.
(76cmHg) at Iow
pressure side. After the
completion of vacuumizing, close the
handle ‘Lo’ in gaugemanifold and stop the operation of the vacuum pump. Check
condition of the scale and hold it for 1-2min. If the scale-moves back in spite of
tightening, make
aring work again, the return to the beginning of 3 .
Attaching Drain-Elbow
Purging Method:To use vacuum pump
Openthevalverodforthe2-wayvalvetoanangle of4.
anticlockwise 90 degrees.
After 6 seconds, close the
2-way valve and make the
inspection of gas leakage.
Amax=10m
Bmax=15m
1(L) 2(N)
3
4
Connecting wiring: 1(L) 2(N)
2
3 4
2
Indoor unit
HSU-18HEK03/R2 Installation
38
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