Tosot TM12HKDI User manual

TM12HKDI
TM18HKDI

User Notice
◆When operating, the entire capacity of the cooperating indoor unit should be not larger
than 150% of outdoor unit. Otherwise, it will cause the shortage of cooling (heating) capacity.
◆A Breaker(or fuse) need to be installed in every indoor unit, and the capacity should
in according with indoor unit’s electrical parameter; all the indoor units are required to be
centralized controlled by a total Switch, this Switch can cut off the electric power supply in
case of emergency. The Breaker(or fuse) on each indoor units have the function of short
circuit prevention and abnormal overload avoiding, it should be connected in normal situation.
The total switch controlling the power supply of all the indoor units. Before clearing and
maintenance job being carried out to the indoor units, it is very important to turn off the total
power supply switch.
◆In order to turn on the units successfully, the main power switch should be opened 8
hours before the operation.
◆After receiving the turn off signal, every indoor unit will continue to work for 20-70sec to
make use of the rest cool air or the rest heat air in the heat exchanger, while preparing for the
next operation. And this is normal.
◆When the selected operating mode of the indoor unit are clash with the operating
mode of the outdoor unit, the malfunction light will blink after 5s on the indoor unit or remote
controller showing that the operation clash, then the indoor unit will stop. At this time, change
the operation mode of the indoor unit to the one that would not clash with the outdoor operating
mode to make the operation normal. The cooling mode is not clash with the dry mode, while
the fan mode is not clash with any mode.
◆The appliance shall not be installed in the laundry.
◆An all-pole disconnection switch having a contact separation of at least 3mm in all poles
should be connected in xed wiring.
◆Information regarding transport/storage temperature (-25-55°C) is missing.
◆Main switch provided by end user: main switch handle should be black or gray, it can be
locked in “OFF” position with padlock.
◆The main disconnection device should be explained in user manual and the height
should be recommended at 0.6-1.7m. over current protection is required(UL 1995,CSA C22.2).
◆The cooling range of the unit is the outdoor environment temp.-5~48°C DB, the heating
range of the unit( only for the heat pump type unit) is the outdoor environment temp. -15~27°C
WB.
This product must not be disposed together with the domestic waste. This product
has to be disposed at an authorized place for recycling of electrical and electronic
appliances.
Thank you for your selecting of Tosot air conditioner, please read this usage and
install instruction carefully and keep it well in order to use this unit correctly.

Contents
1 Safety Information .....................................................................................1
2 Install of The Compact Panel Cassette Type Indoor Unit..........................2
2.1 Schematic diagram of installation spaces......................................................... 2
2.2 Select install location of the indoor unit............................................................. 2
2.3 Important notice ................................................................................................ 3
2.4 Dimension of ceiling opening and location of the hoisting screw (M10)............ 3
2.5 Main body of hoisting air conditioner................................................................. 3
2.6 Connection of the refrigerant pipe..................................................................... 4
2.7 Drainage hose................................................................................................... 5
2.8 Electrical wiring ................................................................................................. 7
2.9 Install the panel................................................................................................. 8
3 Constitutes and Names of Parts of Compact Panel Cassette Type Indoor Unit ..10
4 Working Temperature Range................................................................... 11
5 Malfunction Debarring .............................................................................12
5.1 Check the following items before contacting maintenance center .................. 12
5.2 Instruction........................................................................................................ 13
5.3 The following circumstance are not malfunction ............................................. 13
5.4 After-sales Service .......................................................................................... 13
6 Maintenance Method...............................................................................14
6.1 Cleaning air lter ............................................................................................. 14
6.2 Clean air inlet grille.......................................................................................... 15
6.3 Install and change of air purier ...................................................................... 15
6.4 Clean Outlet vent and Surface Panel.............................................................. 16
6.5 Maintenance before or after usage season..................................................... 16

Safety Information
1
1 Safety Information
Please read this manual carefully before use this unit, and operate it correctly according to the
guide in this manual.
Please take specially note to the meaning of these two marks:
Warning!: This mark means that it may cause casualty or badly heart if the operation is
incorrect.
Note!: This mark means that it may cause casualty or property loss if the operation is
incorrect.
Warning:
◆Do not adopt fuse with unsuitable capacity or adopt iron thread instead of fuse, otherwise
malfunction or re may happened.
◆Cut down the main power switch immediately if malfunction (such as smell the burning odor
etc.) happened.
◆Maintain ventilation to prevent oxygen leakage in room.
◆Don’t insert nger or stick like things into discharge vent or outlet grill.
◆Please make sure that the unit is installed in the place that can bear the weight of it
adequately. If the place is not strong enough, the air conditioner may drop and cause casualty event.
◆Don’t spray or smear any oil paint or insecticide on the surface of unit, otherwise, re may be
leaded.
(1). Do not ret the conditioner. Please contact the agency or prefect ional personnel to repair or
move the conditioner.
An all-pole disconnection switch having a contact separation of at least 3mm in all poles
should be connected in xed wiring.
Note!:
◆Please check and make sure that the cord, drainage pipe and tubes are connected in the
correct way to prevent leakage of water, refrigerant, electric shock or re.
◆The main power must connectable to the earth in order to assure the conditioner earthing
effectively and to prevent electric shock. Please don’t connect the earthing line with the gas pipe,
water pipe, lightening rod or the connecting line of telephone.
◆The air conditioner should be turned off at least after 5 mins’ operation; otherwise it would
affect the duration of the unit.
◆Don’t let the children operate the air conditioner.
◆Please don’t operate the unit by wet hand.
◆Please turn off the main power of the unit before cleaning the conditioner or change the lter.
◆Please cut off the main power if the conditioner will be used for a long time.

Install of The Compact Panel Cassette Type Indoor Unit
2
2 Install of The Compact Panel Cassette Type Indoor Unit
2.1 Schematic diagram of installation spaces
≥2500
≥1500
≥1500
Model H
260
unit:mm
＞20
Wall
surface
Wall
surface
Wall
surface
Ground
surface
H
TM12HKDI
TM18HKDI
Fig.1
2.2 Select install location of the indoor unit
(1). Obstruct should put away from the intake or outlet vent of the indoor unit so that the airow
can be blown though all the room.
(2). Make sure that the installation had accord with the requirement of the schematic diagram of
installation spaces.
(3). Select the place where can stand 4 times of the weight of the indoor unit and would not
increase the operating noise and oscillate.
(4). The horizontally of the installation place should be guaranteed.
(5). Select the place where easy drain condensated coagulated water, and easy connect with
outdoor unit.
(6). Make sure that there are enough space for care and maintenance. Make sure that the
weight between the indoor unit and ground is above 2500mm.
(7). When installing the steeve bolt, check if the install place can stand the weight 4 times of the
unit’s. If not, reinforce before installation. (Refer to the install cardboard and nd where should be
reinforced)
Note!
There will be lots of lampblack and dust stick on the acentric, heat exchanger and water pump
in dining room and kitchen, which would reduce the capacity of heat exchanger, lead water leakage
and abnormal operation of the water pump. The following treatment should be taken under this
circumstance:
(8). Ensure that the smoke trap above cooker has enough capacity to obviate lampblack to
prevent the indraft of the lampblack by the air conditioner.
(9). Keep the air conditioner far from the kitchen so that the lampblack would not be indraft by
the air conditioner.

Install of The Compact Panel Cassette Type Indoor Unit
3
2.3 Important notice
◆To guarantee the good performance, the unit must be installed by professional personnel
according with this instruction.
◆Please contact the local Tosot special nominated repair department before installation. Any
malfunction caused by the unit that is installed by the department that is not special nominated by
Tosot would not deal with on time by the inconvenience of the business contact.
2.4 Dimension of ceiling opening and location of the hoisting screw (M10)
650
570
400
570 604 650
Fig.2 Install dimension of mode
TM12HKDI,TM18HKDI
◆The drilling of holes in the ceiling must be done by the professional personnel.
Ceiling
Installation stands for main body of the unit
(160)
Above 20
Fig.3
Notes: The dimension for the ceiling openings with * marks can be as large as 610mm. But the
overlapping sections of the ceiling and the decorated surface boards should be maintained at no
less than 20mm.
2.5 Main body of hoisting air conditioner
(1). The primary step for install the indoor unit.
◆When attach the hoisting stand on hoisting screw, do use nut and gasket individually at the
upper and lower of the hoisting stand to x it. The use of gasket anchor board can prevent gasket
break off.
(2). Use install cardboard.
◆Please refer to the install cardboard about the dimension of ceiling opening.
◆The central mark of the ceiling opening is marked on the install cardboard.

Install of The Compact Panel Cassette Type Indoor Unit
4
◆Install the install cardboard on the unit by bolt (3 piece), and x the angle of the drainage pipe
at the outlet vent by bolt.
(3). Adjust the unit to the suitable install place. (Refer to the g.3)
(4). Check if the unit is horizontal.
◆Inner drainage pump and bobber switch are included in the indoor unit, check if 4 angle of
every unit are horizontal by water lever. (If the unit is slant toward the opposite of the coagulate
water ow, there may be malfunction of the bobber switch and lead water drop.)
(5). Backout the gasket anchor board used to prevent gasket break off and tighten the nut on it.
(6). Backout the install cardboard.
Fig.4
Note!: Please do tighten the nuts and bolts to prevent air conditioner break off.
2.6 Connection of the refrigerant pipe
◆When connect the pipe to the unit or backout it from the unit, please do use both spanner and
torque wrench. as shown in g.5.
◆ When connect, smear both inside and outside of the are nut with freeze motor oil, screw it
by hand and then tighten it with spanner.
◆Refer to form 1 to check if the wrench had been tightened (too tight would mangle the nut
and lead leakage).
◆Examine the connection pipe to see if it had gas leakage, then take the treatment of heat
insulation, as shown in the g.5.
◆Only use median sponge to entwine the wiring interface of the gas pipe and heat preservation
sheath of the gas collection tube.

Install of The Compact Panel Cassette Type Indoor Unit
5
Smear freeze motoroil
here
Spanner
Thread fasten(x4)
Median sponge (attachment)
(entwine the wiring interface
with seal mat)
Gas collection tube
Liquid inlet tube
Heat preservation
sheath of liquid inlet
tube (attachment) (for
liquid tube)
Heat preservation
sheath of gas collection
tube (attachment)(for
gas tube)
Flare nut
Wiring interface
Torque wrench
Fig.5
Form 1: The tightening torque needed for tightening nut
Diameter（Inch）Surface thickness（mm）Tightening torque (N·m)
φ1/4’’ ≥0.5 15-30 (N·m)
φ3/8’’ ≥0.71 30-40 (N·m)
φ1/2’’ ≥1 45-50 (N··m)
φ5/8’’ ≥1 60-65 (N·m)
φ3/4’’ ≥1 70-75 (N··m)
2.7 Drainage hose
(1). Install the drain hose
◆The diameter of the drain hose should be equal or bigger than the connection pipe’s. ( The
diameter of polythene pipe: Outer diameter 25mm Surface thickness ≥1.5mm)
◆Drain hose should be short and drooping gradient should at less 1/100 to prevent the
formation of air bubble.
◆If drain hose cannot has enough drooping gradient, drain raising pipe should be added.
◆To prevent bent of the drain hose, the distance between hoisting stand should is 1 to 1.5m.
Fig.6
◆Use the drain hose and clamp attached. Insert the drain hose to the drain vent, and then
tighten the clamp.
◆Entwine the big sponge on the clamp of drain hose to insulate heat.
◆Heat insulation should be done to indoor drain hose.

Install of The Compact Panel Cassette Type Indoor Unit
6
Sponge(attachment)
Clamp(attachment)
Below 4mm
Clamp
Drain hose
Sponge (gray)
Fig.7
Drain stepup pipe note
◆The install height of the drain raising pipe should less than 280mm.
◆The drain raising pipe should form a right angle with the unit, and distance to unit should not
beyond 300mm.
Fig.8
Instruction
◆The slant gradient of the attached drain hose should be within 75mm so that the drain hole
doesn’t has to endure the unnecessary outside force.
Fig.9
◆Please install the drain hose according to the following process if several drain hoses join
together.
Fig.10
(2). Check the smoothness of drain after installation.
◆Check the drain state by immitting 600cc water slowly from the outlet vent or test hole.
◆Check the drain in the state of refrigerating after installation of the electric circuit.

Install of The Compact Panel Cassette Type Indoor Unit
7
Fig.11
2.8 Electrical wiring
Note:The power of the entire indoor unit must be connected in outdoor unit.
◆About the electrical wiring, please see the circuit diagram attached with the unit.
◆All the installation of electrical wiring must be done by professional personnel.
◆Please do take the earthing treatment.
Wiring method of connection unit and controller
◆Connection wiring (communication):
①Open electric box cover, drag the wiring (communication)from the rubber plug A, and impact
them well individually by impact fastener.
②Wiring according to the indoor side circuit diagram.
◆Fix the impact fastener after connection.
◆Entwine the small sponge on the electric wire( do entwine it to prevent condensation).
◆Impact tightly by impact fastener after connection and then t on the electric box.
◆Connect the 3 cord rubber wire to the counter terminal of the 3 way terminal board.
The power cord reference Power cord standard recommending table
Fig.12
Power cord standard recommending table
Model Power Supply
(V, Ph, Hz)
Min. Sectional Area of
Earth Wire(AWG)
Min. Sectional Area of
Power Cord(AWG)
TM12HKDI
TM18HKDI
208~203V-1Ph-60Hz UL1015 AWG 18*1 UL1015 AWG 18*3
208~203V-1Ph-60Hz UL1015 AWG 18*1 UL1015 AWG 18*3