
Page 16
4. Connect the indoor unit’s refrigerant piping
to the connective piping that will join the
indoor and outdoor units. Refer to the
Refrigerant Piping Connection section
of this manual for detailed instructions.
5. Based on the position of the wall hole
relative to the mounting plate, determine the
necessary angle of your piping.
6. Grip the refrigerant piping at the base of the
bend.
7. Slowly, with even pressure, bend the piping
towards the hole. Do not dent or damage the
piping during the process.
Step 5: Connect drain hose
By default, the drain hose is attached to the left-
hand side of unit (when you’re facing the back
of the unit). However, it can also be attached to
the right-hand side.
1. To ensure proper drainage, attach the drain
hose on the same side that your refrigerant
piping exits the unit.
2. Attach drain hose extension (purchased
separately) to the end of drain hose.
3. Wrap the connection point firmly with Teflon
tape to ensure a good seal and to prevent
leaks.
4. For the portion of the drain hose that will
remain indoors, wrap it with foam pipe
insulation to prevent condensation.
5. Remove the air filter and pour a small amount
of water into the drain pan to make sure that
water flows from the unit smoothly.
NOTE ON DRAIN HOSE
PLACEMENT
Make sure to arrange the drain hose
according to Fig. 3.9
DO NOT kink the drain hose.
DO NOT
create a water trap.
DO NOT put the end of drain hose in
water or a container that will collect
water.
PLUG THE UNUSED DRAIN HOLE
To prevent unwanted leaks you must plug
the unused drain hole with the rubber plug
provided.
CORRECT
Make sure there are no
kinks or dent in drain
hose to ensure proper
drainage.
NOT CORRECT
Kinks in the drain hose
will create water traps.
NOT CORRECT
Do not place the end
of the drain hose in
water or in containers
that collect water. This
will prevent proper
drainage.
NOT CORRECT
Kinks in the drain hose
will create water traps.
Fig. 3.9
Fig. 3.10
Fig. 3.11
Fig. 3.12
Page 17
BEFORE PERFORMING
ELECTRICAL WORK, READ
THESE REGULATIONS
1.
All wiring must comply with local and
national electrical codes, and must be
installed by a licensed electrician.
2.
All electrical connections must be made
according to the Electrical Connection
Diagram located on the panels of the
indoor and outdoor units.
3.
If there is a serious safety issue with
the power supply, stop work immediately.
Explain your reasoning to the client, and
refuse to install the unit until the safety
issue is properly resolved.
4.
Power voltage should be within
90-110% of rated voltage. Insufficient
power supply can cause malfunction,
electrical shock, or fire.
If connecting power to fixed wiring,
install a surge protector and main
power switch with a capacity of 1.5
times the maximum current of the unit.
5.
6.
If connecting power to fixed wiring,
a switch or circuit breaker that
disconnects all poles and has a contact
separation of at least 1/8in (3mm) must
be incorporated in the fixed wiring.
The qualified technician must use an
approved circuit breaker or switch.
7.
Only connect the unit to an individual
branch circuit outlet. Do not connect
another appliance to that outlet.
8.
Make sure to properly ground the
air conditioner.
9.
Every wire must be firmly connected.
Loose wiring can cause the terminal to
overheat, resulting in product
malfunction and possible fire.
10.
Do not let wires touch or rest against
refrigerant tubing, the compressor, or
any moving parts within the unit.
11.
If the unit has an auxiliary electric
heater, it must be installed at least 1
meter (40in) away from any
combustible materials.
Step 6: Connect signal cable
The signal cable enables communication between
the indoor and outdoor units. You must first
choose the right cable size before preparing
it for connection.
Cable Types
•
Indoor Power Cable(if applicable):
H05VV-F or H05V2V2-F
•
Outdoor Power Cable:H07RN-F
•
Signal Cable:H07RN-F
Minimum Cross-Sectional Area of
Power and Signal Cables
Other Regions
Rated Current of
Appliance (A)
Nominal Cross-Sectional
Area (mm²)
> 3 and ≤6 0.75
> 6 and ≤10 1
> 10 and ≤16 1.5
> 16 and ≤25 2.5
> 25 and ≤32 4
> 32 and ≤40 6
CHOOSE THE RIGHT CABLE SIZE
The size of the power supply cable, signal
cable, fuse, and switch needed is determined
by the maximum current of the unit. The
maximum current is indicated on the nameplate
located on the side panel of the unit. Refer to
this nameplate to choose the right cable, fuse,
or switch.
WARNING
BEFORE PERFORMING ANY ELECTRICAL
OR WIRING WORK, TURN OFF THE MAIN
POWER TO THE SYSTEM.
North America
Appliance Amps (A) AWG
10 18
13 16
18 14
25 12
30 10