1. If the supply cord is damaged, it must be replaced by the manufacturer or its
service agent or a similar qualified person. The type of connecting wire is
H05RN-F or H07RN-F.
2. If the fuse on PC board is broken please change it with the type of
T. 3.15A/250V.
3. The wiring method should be in line with the local wiring standard.
4. After installation, the power plug should be easily reached.
5. A breaker should be incorporated into fixed wiring. The breaker should be
all-pole switch and the distance between its two contacts should be not less
than 3mm.
3
Outdoor unit
Indoor unit
Connecting wiring :
Power cable
3G1.5mm
2
+1x0.75mm
2
3G1.5mm
2
Outdoor unit
Indoor unit
4 G1.5mm
HSU-09RR03/R2(SDB)
HSU-12RR03/R2(SDB)
Connecting wiring (with fresh function):
5G1.5mm
2
Connecting wiring (without fresh function):
4G1.5mm
2
Power cable: ≥3G1.5mm
2
Indoor unit
Outdoor unit
connection line for
indoor PCB signal
connection line for
heating exchange
HSU-09RUC03/R2(SDB)
HSU-12RUC03/R2(SDB)
Power cable
3G1.5mm
2
Connecting wiring :
2
Indoor unit
Outdoor unit
4G1.5mm
2
HSU-09RUF03/R2(SDB)
HSU-12RUF03/R2(SDB)
Power cable
3G1.5mm
2
Indoor unit
Outdoor unit
Power cable: 3G1.5mm
2
Connecting wiring(with fresh function): 5G1.5mm
2
Connecting wiring(without fresh function): 4G1.5mm
2
HSU-09RU03/R2(SDB)
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 ,
ƽ
and the bending radius should be 30 to 40 mm or longer.
Connecting the pipe of gas side first makes working easier.
ƽ
The connection pipe is specialized for R410A.
ƽ
Use the same method on indoor unit. Loosen the screws on
ƽ
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.
ƽ
If wiring is not correct, proper operation can not be carried out and controller
may be damaged.
ƽ
Fix the cable with a clamp.
ƽ
Installation of Outdoor Unit
Half union
Flare nut
Torque wrench
CAUTION
Be careful that matters, such as wastes of sands, etc. shall not enter the pipe.
The standard pipe length is 5m. If it is over 10m, the function of the unit will be
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.
Max.Elevation: Amax=10m
●
In case the elevation A is more
●
than 5m, oil trap shoud be
installed every 5~7m
Max. Length: Bmax=15m
●
In case the pipe length B is
●
more than 10m, 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 figure.
ƽ
Attaching Drain-Elbow (Optional)
Purging Method:To use vacuum pump
Pipe Diameter(ǿ)
Fastening torque
Liquid side6.35mm(1/4")
18N.m
Liquid/Gas side9.52mm(3/8")
42 N.m
Gas side 12.7mm(1/2")
55N.m
Gas side 15.88mm(5/8")
60 N.m
Detach the service port’s cap of
1.
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 (Iow)
Note
When connecting the cable, confirm the terminal number of indoor and
outdoor units carefully. If wiring is not correct, proper operation can not
be carried out and will cause defect.
After the cable connection,
ƽ
never fail to fasten the connected cable with the
wiring cover.
HSU-12RU03/R2(SDB)
4G1.5mm
2
3G1.5mm
2
+2x0.75mm
2
(RS model with fresh function):
(RS model without fresh function):
HSU-09HVd03/R2(SDB)
HSU-12HVd03/R2(SDB)
HSU-09RS03/R2(SDB)
HSU-12RS03/R2(SDB)
or
4G1.5mm
2
HSU-18RK03/R2(SDB)
To indoor unit
To outdoor fresh
air motor
The connecting method of
fresh air box signal wire
Signal line: 22AWGx2
For the units with
fresh air function
(for Hvd model)
(Note:Not available for North European Area unit)
