Senville SENL12HDMI User manual

SENL/12HD/MI
SENL/18HD/MO

9
10
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2
SAFETY PRECAUTIONS
WARNING
Read the follow SAFETY PRECAUTIONS carefully before installation.
Electrical work must be installed by a licensed electrician. Be sure to use the correct rating
of the power plug and main circuit for the model to be installed.
Incorrect installation due to ignoring of the instruction will cause harm or damage.
The seriousness is classified by the following indications.
This symbol indicates the possibility of death or serious injury.
The items to be followed are classified by the symbols:
Symbol with background white denotes item that is PROHIBITED from doing.
CAUTION
This symbol indicates the possibility of injury or damage to property.
WARNING
1) Engage dealer or specialist for installation. If installation done by the user is defective, it will cause water
leakage, electrical shock fire.
2) Install according to this installation instructions strictly. If installation is defective, it will cause water
leakage, electrical shock fire.
3) Use the attached accessories parts and specified parts for installation. otherwise, it will cause the set to fall,
water leakage, electrical shock fire.
4) Install at a strong and firm location which is able to withstand the set s weight. If the strength is not enough
or installation is not properly done, the set will drop and cause injury.
,
5) For electrical work, follow the local national wiring standard, regulation and this installation instructions. An
independent circuit and single outlet must be used. If electrical circuit capacity is not enough or defect found
in electrical work, it will cause electrical shock fire.
6) Use the specified cable and connect tightly and clamp the cable so that no external force will be acted on
the terminal. If connection or fixing is not perfect, it will cause heat-up or fire at the connection.
7) Wiring routing must be properly arranged so that control board cover is fixed properly. If control board cover
is not fixed perfectly, it will cause heat-up at connection point of terminal, fire or electrical shock.
8) When carrying out piping connection, take care not to let air substances other than the specified
refrigerant go into refrigeration cycle. Otherwise, it will cause lower capacity, abnormal high pressure
in the refrigeration cycle, explosion and injury.
9) Do not modify the length of the power supply cord or use of extension cord, and do not share the
single outlet with other electrical appliances. Otherwise, it will cause fire or electrical shock.
CAUTION
1) This equipment must be earthed and installed with earth leakage current breaker. It may cause electrical
shock if grounding is not perfect.
2) Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and
accumulates at surrounding of the unit, it may cause fire.
3) Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water
may enter the room and damage the furniture.

3
Selecting installation place
Read completely, then followstep by step.
Indoor unit
Do not expose the indoor unit to heat or steam.
Select a place where there are no obstacles
in front or around the unit.
Make sure that condensation drainage can
be conveniently routed away.
Do not install near a doorway.
Ensure that the space on the left and right
of the unit is more than 12cm.
Use a stud finder to locate studs to prevent unnecessary damage to the wall.
The indoor unit should be installed on the wall at a height of 2.0 metres or more from the floor.
The indoor unit should be installed allowing a minimum clearance of 15cm from the ceiling.
Any variations in pipe length will/may require adjustment to refrigerant charge.
There should not be any direct sunlight. Otherwise, the sun will fade the plastic cabinet and
affect its appearance. If unavoidable, sunlight prevention should be taken into consideration.
Outdoor unit
If an awning is built over the outdoor unit to
prevent direct sunlight or rain exposure,
make sure that heat radiation from the
condenser is not restricted.
Ensure that the clearance around the back
of the unit is more than 30cm and left side is
more than 30cm. The front of the unit should
have more than 200cm of clearance and the
connection side (right side) should have more
than 60cm of clearance.
Do not place animals and plants in the path of the air inlet or outlet.
Take the air conditioner weight into account and select a place where noise and vibration
will not be an issue.
Select a place so that the warm air and noise from the air conditioner do not disturb neighbors.
If the outdoor unit is installed on a roof structure, be sure to level the unit.
Ensure the roof structure and anchoring method are adequate for the unit location.
Consult local codes regarding rooftop mounting.
If the outdoor unit is installed on roof structures or external walls, this may result in
excessive noise and vibration, and may also be classed as a non serviceable installation.
Rooftop installation:
INSTALLATION INSTRUCTIONS
More than 30cm
More than 60cm
More than 30cm
More than 200cm
Fig.2
More than 2.0m
More than 15cm
More than 12cm
More than 12cm
Fig.1
1. Wall-mounted type

This illustration is for explanation purposes only.
The actual shape of your air condtioner may be
slightly different.
Copper lines must be insulated independently
Use a stud finder to locate studs to prevent
unnecessary damage to the wall.
A minimum pipe run of 3 metres is required
to minimise vibration & excessive noise.
Two of the A, B and C directions should be
free from obstructions.
CAUTION
INSTALLATION INSTRUCTIONS
5
CAUTIONS
One-Two
One-Three
One-Four
More than 12cm
Air filter
Remote
controller
More than 12cm
Air filter
Remote
controller
Remote
controller
Air filter
More than
12cm
More than 15cm
More than
12cm
Air filter
Remote
controller
More than
10cm
A
BC
More than 200cm
Air out
More than 60cm
More than
30cm
More than
60cm
Loop a
connective
cable
1
2
3
4
5
6
Fig.3

6
INSTALLATION INSTRUCTIONS
Fig.4
Correct orientation
of Installation Plate
Wall
Indoor Outdoor
5-7mm
Fig.6
Fig.5
Indoor unit installation(wall-mounted type)
2. Drill a hole in the wall
Note:
1. Fit the Installation Plate
1. Fit the installation plate horizontally
on structural parts of the wall with
spaces around the installation plate.
2. If the wall is made of brick, concrete
or the like, drill eight (8) 5mm diameter
holes in the wall.Insert Clip anchor for
appropriate mounting screws.
3. Fit the installation plate on the wall
with eight (8) type “A” screws.
Fit the Installation Plate and drill
holes in the wall according to the
wall structure and corresponding
mounting points on the installation
plate. The Installation Plate may be
slightly different according to the
different models of indoor unit.
(Dimensions are in “mm” unless
otherwise stated)
1. Determine hole positions according
to the diagramdetailed in Fig.5. Drill
one (1) hole ( 65mm) slanting slightly
to outdoor side.
2. Always use wall hole conduit when
drilling metal grid, metal plate or the like.
3. Connective Pipe and Drainage
Installation
1. Run the drain hose sloping downward.
Do not install the drain hose as
illustrated in Fig.7.
Drainage
Fig.7
Do not block water flow by a rise.
Do not put the end of
drain hose into water.
A
40
B
Right rear side
refrigerant
pipe hole 65
Installation plate
Indoor unit outline
Left rear side
refrigerant
pipe hole 65
150mm or more to ceiling
120mm or
more to wall
120mm or
more to wall
90
40
45
Model A(mm)
710
B(mm)
250
12000Btu/h
790 265
815 280
>12000Btu/h
780 270
780 270
750 250
Indoor unit outline
12cm or
more to wall 12cm or more to wall
Left refrigerant
pipe hole 65 Right refrigerant
pipe hole 65
Installation plate
A
45
B
15cm or more to ceiling
45 96
45
(1)
(2)

7
INSTALLATION INSTRUCTIONS
1. For the left-hand and right-hand piping,
remove the pipe cover from the side
panel.
2. For the rear-right-hand and rear-left-hand
piping, install the piping as shown in Fig.9.
Bend the connective pipe to be laid at 43mm
height or less from the wall.
3. Fix the end of the connective pipe. (Refer
to Tightening Connection in REFRIGERANT
PIPING CONNECTION)
Connective pipe installation
2. When connecting extension drain hose,
insulate the connecting part of extension
drain hose with a shield pipe, do not let
the drain hose slack.
Right-hand piping
Left-hand piping
Rear-right piping
Rear-left piping
Indoor unit outline
Connective pipe
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43
Fig.8
Fig.9
Fig.10
4. Piping and wrapping
Bundle the tubing, connecting cable, and drain
hose with tape securely, evenly as shown in
Fig.11.
Because the condensed water from rear of the
indoor unit is gathered in ponding box and is
piped out of room. Do not put anything else in
the box.
Indoor unit
Connective
pipe
Pipe room
Ponding box
Wrapping belt
Connective
cable
Drain hose
Fig.11
Connect the indoor unit first, then the
outdoor unit.
Do not allow the piping to let out from
the back of the indoor unit.
Be careful not to let the drain hose slack.
Heat insulated both of the auxiliary piping.
Be sure that the drain hose is located at
the lowest side of the bundle. Locating
at the upper side can cause drain pan
to overflow inside the unit.
Never intercross nor intertwist the power
wire with any other wiring.
Run the drain hose sloped downward to
drain out the condensed water smoothly.
CAUTION

8
INSTALLATION INSTRUCTIONS
Fig.12
1. Pass the piping through the hole in the
wall.
2. Put the upper claw at the back of the
indoor unit on the upper hook of the
installation plate, move the indoor unit
from side to side to see that it is securely
hooked (see Fig.12).
3. Piping can easily be made by lifting the
indoor unit with a cushioning material
between the indoor unit and the wall.
Get it out after finish piping.
4. Push the lower part of the indoor unit up
on the wall, then move the indoor unit
from side to side, up and down to check
if it is hooked securely.
4. Indoor unit installation
(R410A)
Max. 40m
(R407c/R22)
Max.10m
Max.5m
(R410A)
(R407c/R22)
10.5KW

Refrigerant pipe connection
Oblique
90 Roughness
Burr
Main cause for refrigerant leakage
is due to defect in the flaring work.
Carry out correct flaring work
using the following procedure:
A: Cut the pipes and the cable.
1. Use the piping kit accessory or pipes
purchased locally.
2. Measure the distance between the indoor
and the outdoor unit.
3. Cut the pipes a little longer than the
measured distance.
4. Cut the cable 1.5m longer than the pipe
length.
1. Flaring work
B: Burr removal
1. Completely remove all burrs from the cut
cross section of pipe/tube.
2. Put the end of the copper tube/pipe in a
downward direction as you remove burrs in
order to avoid dropping burrs into the tubing.
Pipe
Reamer
Point down
Fig.13
Fig.14
C: Putting nut on
Remove flare nuts attached to indoor and
outdoor unit, then put them on pipe/tube
having completed burr removal.(not possible
to put them on after flaring work)
Flare nut
Copper tube
Fig.15
9
REFRIGERANT PIPE CONNECTION

10
ELECTRICAL WORK
Bar
Copper pipe
Clamp handle Red arrow mark
Cone
Yoke
Handle
Bar
"A"
Fig.16
D: Flaring work
Firmly hold copper pipe in a die in the
dimension shown in the table below.
Caution
Align the center of the pipes.
Sufficiently tighten the flare
nut with fingers, and then tighten
it with a spanner and torque wrench
as shown in Fig.51 & 52.
Tightening Connection
Excessive torque can break nut
depending on installation conditions.
Outer
diam. Tightening torque(N.cm) Additional tightening
torque(N.cm)
6.35 1570
(160kgf.cm) 1960 (200kgf.cm)
4900
(500kgf.cm)
5390
(550kgf.cm)
12.7
Outer diam.
(mm)
A(mm)
Max. Min.
6.35 1.3 0.7
9.53
1.6 1.0
12.7
1.8 1.0
9.53
2940
(300kgf.cm)
3430
(350kgf.cm)
Fig.18
Indoor unit tubing Flare nut Pipings
Fig.17
Electric safety regulations for the initial Installation
1. If there is serious safety problem about the power supply, the technicians should refuse
to install the air conditioner and explain to the client until the problem is solved.
2. Power voltage should be in the range of 90%~110%of rated voltage.
3. The creepage protector and main power switch with a 1.5 times capacity of Max. Current
of the unit should be installed in power circuit.
4. Ensure the air conditioner is grounded well.
7. An individual branch circuit and single receptacle used only for this air conditioner must be available.
5. According to the attached Electrical Connection Diagram located on the panel of the outdoor
unit to connect the wire.
6. All wiring must comply with local and national electrical codes and be installed
by qualified and skilled electricians.
12.7
1.8 1.0
Electrical work

11
ELECTRICAL WORK
Fig.19
Connect the cable to the outdoor unit
1. Remove the electrical control board cover
from the outdoor unit by loosening the screw
as shown in Fig.51.
2. Connect the connective cables to the
terminals as identified with their respective
matched numbers on the terminal block of
indoor and outdoor units.
3. Secure the cable onto the control board with
the cord clamp.
4. To prevent the ingress of water, from a loop
of the connective cable as illustrated in the
installation diagram of indoor and outdoor
units.
5. Insulate unused cords (conductors) with
PVC-tape.Process them so they do not
touch any electrical or metal parts.
Wiring connection
NOTE: Before performingany electrical
work, turn off the main power to the system.
Connection Cable
10mm
CAUTIONS
Do not touch the capacitor even if you
have disconnected the power for there is
still high voltage power on it, or electric
shock hazard may occur. For your safety,
you should start repairing at least 5 minutes
later after the power is disconnected.
The power is supplied from the Outdoor
Unit. The four Indoor Unit are connected
with a signal wires or power cords are
connected reliably and correctly, or the
air conditioner could not run normally.
Fig.20
Minimum norminal cross-sectional area
of conductors:
Rated current ofappliance
(A)
Nominal cross-sectional
2
area (mm )
>3 and <6
>6 and <10
>10 and <16
>16 and <25
0.75
1
1.5
2.5
Screw
Cover
Fig.21
Fig.22
Fig.23
Make sure to connect the indoor unit (A,B, C, D)
to the Hi and Lo valve and terminals of signal
wires(A, B, C, D) of outdoor unit as identified
with their respective matched connection.
Wrong wiring connections may cause some
electrical parts to malfunction.
CAUTIONS

NOTE:
For some models, the indoor unit is especially designed to used as either MULTI models
or MONO models. If your air conditioner is not set to the MULTI position, see the following
INDOOR WIRING DIAGRAM to modify the indoor unit from MONO model to MULTI model.
(Fig.56 & 57)
1. Carefully remove the front panel and frame, then remove the Electricall control cover
by loosen the screw.
2. Remove the POWER SUPPLY cord of MONO model(Fig.56).
3. Unplug the “L” RED wire connected with “4” on pinboard of RY1, then connect it
with “3” on pinboard of Ry1.
4. Reinstall the Electrical Control cover and screw, rip off the white paper above the
Slide Switch and move it to the MULTI position(see Fig. 56).
5. Reinstall the front panel and frame.
6. Now the indoor unit can be used as MULTI models(Fig.57). Because the control
system is changed, the AUTO CLEAN function is unavailable for MULTI models.
MONO MODELS
MULTI MODELS
MONO
MONO
MULTI
Rip off the
white paper
MONO
MONO
MULTI
Fig.24
Fig.25
ELECTRICAL WORK
12
RED
RED
4
3
3
3
2
PLUMB STEP MOTOR DOOR STEP MOTOR
This symbol indicates the element
is optional,the actual shape shall
be prevail.
Notes:
RED
RED
4
3
3
3
2
PLUMB STEP MOTOR DOOR STEP MOTOR
This symbol indicates the element
is optional,the actual shape shall
be prevail.
Notes:
202032590637

After the confirmation of the above conditions, prepare the wiring as follows:
1) Never fail to have an individual power circuit specifically for the air conditioner. As for
the method of wiring, be guided by the circuit diagram posted on the inside of control
cover.
2) The screw which fasten the wiring in the casing of electrical fittings are liable to come
loose from vibrations to which the unit is subjected during the course of
transportation. Check them and make sure that they are all tightly fastened. (If they
are loose, it could cause burn-out of the wires.)
3) Specification of power source.
4) Confirm that electrical capacity is sufficient.
5) See to that the starting voltage is maintained at more than 90 percent of the rated
voltage marked on the name plate.
6) Confirm that the cable thickness is as specified in the power source specification.
7) Always install an earth leakage circuit breaker in a wet or moist area.
8) The following would be caused by voltage drop.
Vibration of a magnetic switch, which will damage the contact point, fuse breaking, disturbance of the
normal function of the overload.
9) The means for disconnection from a power supply shall be incorporated in the fixed
wiring and have an air gap contact separation of at least 3mm in each active(phase)
conductors.
CAUTION
CAUTION
CAUTION
CAUTION
Air and moisture in the refrigerant system have undesirable effects as indicated below:
Pressure in the system rises.
Operating current rises.
Cooling or heating efficiency drops.
Moisture in the refrigerant circuit may freeze and block capillary tubing.
Water may lead to corrosion of parts in the refrigeration system.
Therefore, the indoor unit and tubing between the indoor and outdoor unit must be leak tested
and evacuated to remove any noncondensables and moisture from the system.
Air purging with vacuum pump
Preparation
Check that each tube(both liquid and gas side tubes) between the indoor and outdoor units
have been properly connected and all wiring for the test run has been completed. Remove
the service valve caps from both the gas and the liquid side on the outdoor unit. Note that
both the liquid and the gas side service valves on the outdoor unit are kept closed at this
stage.
Pipe length and refrigerant amount:
Connective
pipe length
Less than 5m
More than 5m
Air purging
method
Use vacuum
pump.
Use vacuum
pump.
Additional amount of refrigerant to be charged
AIR PURGING
Air purging
13
R22: (Pipe length-5m)x30g/m
R410A: (Pipe length-5m)x15g/m
R407c: (Pipe length-5m)x30g/m

14
AIR PURGING
When relocate the unit to another place,
perform evacuation using vacuum pump.
Make sure the refrigerant added into the air
conditioner is liquid form in any case.
(Not applicable to the units adopt freon R22 )
Open the valve stem until it hits against the
stopper. Do not try to open it further.
Securely tighten the valve stem cap with a
spanner or the like.
Valve stem cap tightening torque (See
Tightening torque table in previous page ).
Outdoor
unit
Indoor
unit
Refrigerant
Flare nut
Stopper
Cap
Valve body
Packed valve
Half union
Gas side
Liquid side
AC
D
B
Valve stem
Fig.26
Fig.27
When Using the Vacuum Pump
(For method of using a manifold valve, refer
to its operation manual.)
1. Completely tighten the flare nuts, A, B, C, D,
connect the manifold valve charge hose to a
charge port of the low-pressure valve on the
gas pipe side.
2. Connect the charge hose connection to the
vacuum pump.
3. Fully open the handle Lo of the manifold valve.
4. Operate the vacuum pump to evacuate. After
starting evacuation, slightly loose theflare nut
of the Lo valve on the gas pipe side and
check that the air is entering(Operation noise
of the vacuum pump changes and a
compound meter indicates 0 instead of minus)
5. After the evacuation is complete, fully close
the handle Lo of the manifold valve and stop
the operation of the vacuum pump. Make
evacuation for 15 minutes or more and check
that the compound meter indicates
5
-76cmHg (-1x10 Pa).
6. Turn the stem of the packed valve B about
o
45 counterclockwise for 6~7 seconds after
the gas coming out, then tighten the flare nut
again. Make sure the pressure display in the
pressure indicator is a little higher than the
atmosphere pressure.
7. Remove the charge hose from the Low
pressure charge hose.
8. Fully open the packed valve stems B and A.
9. Securely tighten the cap of the packed valve.
Manifold valve
Compound meter
-76cmHg
Handle Lo Handle Hi
Charge hose Charge hose
Vacuum pump
Pressure gauge
Low pressure valve
Fig.28
Caution in handling the packed valve

Perform the electric safe check after
completing installation:
1. Insulated resistance
The insulated resistance must be more than
2M .
2. Grounding work
After finishing grounding work, measure the
grounding resistance by visual detection and
grounding resistance tester. Make sure the
grounding resistance is less than 4 .
3. Electrical leakage check (performing during
test running)
During test operation after finishing installation,
the serviceman can use the electroprobe and
multimeter to perform the electrical leakage
check. Turn off the unit immediately if leakage
happens. Check and find out the solution
ways till the unit operate properly.
A: Lo packed valve B: Hi packed valve
C and D are ends of indoor unit connection.
CAUTION
Electrical safety check
Gas leak check
1. Soap water method:
Apply a soap water or a liquid neutral
detergent on the indoor unit connection
or outdoor unit connections by a soft
brush to check for leakage of the
connecting points of th piping. If bubbles
come out, the pipes have leakage.
2. Leak detector
Use the leak detector to check for leakage.
Safety and leakage check
1
Indoor unit
check point
Outdoor unit
check point
nmk
jih
A
B
C
a
c
b
d
e
f
a,b,c,d,h,i,j , kare points for one-two type.
a,b,c,d,e,f,,h,i,j,k,m,n are pointsfor one-three type.
Indoor unit
check point
Outdoor unit
check point
One-four type
15
AIR PURGING
Fig.29
Fig.30
NOTE: The illustration is for explanation
purpose only. The actual order of A, B, C
and D on the machine may be slightly
different from the unit you purchased. The
actual shape shall prevail.

Test running
Perform test operation after completing gas leak check at the flare nut connections and
electrical safety check.
Check that all tubing and wiring have been properly connected.
Check that the gas and liquid side service valves are fully open.
1. Connect the power, press the ON/OFF button on the remote controller to turn the unit on.
2. Use the MODE button to select COOL, HEAT, AUTO and FAN to check if all the functions
works well.
3. When the amient temperature is too low(lower than 17 C), the unit cannot be controlled by
the remote controller to run at cooling mode, manual operation can be taken. Manual
operation is used only when the remote controller is disable or maintenance necessary.
Press the Manual control button to select the AUTO or COOL, the unit will operate under
Forced AUTO or COOL mode(see User Manual for details).
4. The test operation should last about 30 minutes.
Hold the panel sides and lift the panel up to an angle until it remains fixed with a clicking
sound.
Manual control
Button
16
TEST RUNNING
Fig.31
Manual control
button
AUTO/COOL