Tosot TU18H3O Owner'S Manual Download Page 15 | Manualshive

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DC Inverter U-match Series Cassette Type Unit

11

Table 4.1

Unit: mm (inch)

Item

Model

A

B

C

D

E

F

G

H

I

J

TU18HKI

670

(26-3/8)

570

(22-1/2)

570

(22-1/2)

495

(19-1/2)

600

(23-5/8)

240

(9-1/2)

140

(5-1/5)

236

(9-1/4)

595

(23-1/2)

665

(26-1/5)

For the units: 24k~42k

Fig. 4.2

Table 4.2

Unit: mm (inch)

Item

Model

A

B

C

D

F

G

H

TU24HKI

995

(39-1/8)

950

(37-3/8)

915

(36)

840

(33-1/8)

240

(9-1/2)

140

(5-1/2)

215

(8-1/2)

TU30HKI

995

(39-1/8)

950

(37-3/8)

915

(36)

840

(33-1/8)

320

(12-5/8)

140

(5-1/2)

215

(8-1/2)

TU36HKI

995

(39-1/8)

950

(37-3/8)

915

(36)

840

(33-1/8)

320

(12-5/8)

140

(5-1/2)

215

(8-1/2)

TU42HKI

995

(39-1/8)

950

(37-3/8)

915

(36)

840

(33-1/8)

320

(12-5/8)

140

(5-1/2)

215

(8-1/2)

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Summary of Contents for TU18H3O

Page 1: ......

Page 2: ...g refrigerant and lubricant If the product is not to be used for long cut off the power supply please energize and preheat the unit in advance before reusing it 3 Please properly select the model according to actual using environment otherwise it may impact the using convenience 4 This product has gone through strict inspection and operational test before leaving the factory In order to avoid dama...

Page 3: ... final right to interpret for this instruction manual belongs to TOSOT Exception Clauses Manufacturer will bear no responsibilities when personal injury or property loss is caused by the following reasons 1 Damage the product due to improper use or misuse of the product 2 Alter change maintain or use the product with other equipment without abiding by the instruction manual of manufacturer 3 After...

Page 4: ...nit 10 4 1 Installation of the Indoor Unit 10 4 2 Installation of the Outdoor Unit 14 4 3 Installation of the Connection Pipe 16 4 4 Vacuum and Gas Leakage Inspection 20 4 5 Installation of the Drain Hose 22 4 6 The Panel Installation 27 4 7 Electrical Wiring 29 5 Installation of Controller 35 6 Test Running 36 6 1 Trial Operation and Testing 36 6 2 Working Temperature Range 38 7 Troubleshooting a...

Page 5: ... Improper installation may cause water leakage electrical shock or fire 5 Install the air conditioner according to the instructions given in this manual Incomplete installation may cause water leakage electrical shock or fire 6 Be sure to use the supplied or specified installation parts Use of other parts may cause the unit to come to lose water leakage electrical shock or fire 7 Install the air c...

Page 6: ... stop valve is open during pump down air will be sucked in when the compressor is run causing abnormal pressure in the freezer cycle which will lead to breakage and even injury 18 Be sure to establish an earth Do not earth the unit to a utility pipe arrester or telephone earth Incomplete earth may cause electrical shock or fire A high surge current from lightning or other sources may cause damage ...

Page 7: ...DC Inverter U match Series Cassette Type Unit 3 2 Outline of the Unit and Main Parts Fig 2 1 NOTICE The connection pipe drain pipe and power cord for this unit should be prepared by the user ...

Page 8: ... with the hanger bolt for installing the unit for 24k 48k units 4 installation paperboard 1 Used for ceiling drilling 5 Gasket mounting board 4 Used to prevent gasket from falling off 6 Wireless Controller Battery 1 2 To control the indoor unit 7 sealing plaster 1 Used for holes through the wall 8 Fastener 4 To fasten the sponge 9 Insulation 1 To insulate the gas pipe 10 Insulation 1 To insulate t...

Page 9: ... near heat source steam or flammable gas 4 Children under 10 years old must be supervised not to operate the unit Decide the installation location with the customer as follows 3 2 1 Indoor Unit Select an installation site where the following conditions are fulfilled and that meets your customer s approval 1 Obstruct should be put away from the intake or outlet vent of the indoor unit so that the a...

Page 10: ...es of the weight of the unit If not reinforce it before installation NOTICE There will be large amount of greasy dirt accumulated on the fan heat exchanger and water pump located in the dinning room and kitchen which would reduce the capacity of the heater exchanger lead to leakage and abnormal operation of the water pump Unit mm inch Fig 3 1 Table 3 3 Model H mm inch TU18HKI 255 10 TU24HKI 260 10...

Page 11: ... as much as possible 2 Install the outdoor unit where it is convenient to connect with the indoor unit 3 Install the outdoor unit where the condensate water can be drained out freely during heating operation 4 Do not place animals and plants in the path of the warm air 5 Take the air conditioner weight into account and select a place where noise and vibration are small 6 Install the outdoor unit w...

Page 12: ... Φ6 Φ1 4 Φ12 7 Φ1 2 50 164 15 49 1 5 Φ25 1 5 Φ1 3 50 TU24HKI Φ9 5 Φ3 8 Φ16 Φ5 8 50 164 15 49 1 5 Φ25 1 5 Φ1 3 50 TU30HKI Φ9 5 Φ3 8 Φ16 Φ5 8 50 164 15 49 1 5 Φ25 1 5 Φ1 3 50 TU36HKI Φ9 5 Φ3 8 Φ16 Φ5 8 50 164 15 49 1 5 Φ25 1 5 Φ1 3 50 TU42HKI Φ9 5 Φ3 8 Φ16 Φ5 8 50 164 15 49 1 5 Φ25 1 5 Φ1 3 50 TU48HKI Φ9 5 Φ3 8 Φ16 Φ5 8 70 230 15 49 1 5 Φ25 1 5 Φ1 3 50 NOTICES 1 The connection pipe should be insulat...

Page 13: ... TU30HKI 208V 230V 60Hz 5 1 5 15 TU36HKI 208V 230V 60Hz 5 1 5 15 TU42HKI 208V 230V 60Hz 5 1 5 15 TU48HKI 208V 230V 60Hz 5 2 15 Table 3 6 Model Power Supply Fuse Capacity Minimum Circuit Ampacity Maximum Overcurrent Protection V Ph Hz A A A TU18H3O 208V 230V 60Hz 5 15 9 25 TU24H3O 208V 230V 60Hz 5 23 4 40 TU30H3O 208V 230V 60Hz 5 23 4 40 TU36H3O 208V 230V 60Hz 5 27 7 45 TU42H3O 208V 230V 60Hz 5 29 ...

Page 14: ... together For the unit 30k it s recommended to use 8m 26 1 4feet long communication line 4 Take 2 pieces of power cord of 0 75mm2 AWG18 as the communication lines between the wired controller and the indoor unit with their longest lengths of 30m 98 2 5feet Please select the appropriate line length as per the actual installation conditions The communication lines can not be twisted together It s re...

Page 15: ... 2 665 26 1 5 For the units 24k 42k Fig 4 2 Table 4 2 Unit mm inch Item Model A B C D F G H TU24HKI 995 39 1 8 950 37 3 8 915 36 840 33 1 8 240 9 1 2 140 5 1 2 215 8 1 2 TU30HKI 995 39 1 8 950 37 3 8 915 36 840 33 1 8 320 12 5 8 140 5 1 2 215 8 1 2 TU36HKI 995 39 1 8 950 37 3 8 915 36 840 33 1 8 320 12 5 8 140 5 1 2 215 8 1 2 TU42HKI 995 39 1 8 950 37 3 8 915 36 840 33 1 8 320 12 5 8 140 5 1 2 215...

Page 16: ...em Model A B C D F G TU48HKI 1040 41 790 31 1 8 840 33 1 8 910 35 7 8 290 11 3 8 140 5 1 4 Drilling of ceiling opening and installation of air conditioner must be performed by professionals Please refer to the installation cardboard for the dimension of drilling hole of lifting screw of cassette unit ...

Page 17: ...he unit to the best position 4 Check if the unit is installed horizontally at four directions If not the water pump and the float switch would function improperly and even lead to water leakage 5 Remove the gasket anchor board and tighten the nut remained 6 Remove the paper template 4 1 3 Installing the Suspension Bolts 1 Using the installation template drill holes for bolts four holes Fig 4 5 2 I...

Page 18: ... Unit mm inch Fig 4 5 Fig 4 6 Fig 4 7 4 1 4 Leveling The water level test must be done after installing the indoor unit to make the unit is horizontal as shown below Fig 4 8 4 2 Installation of the Outdoor Unit 1 Install the unit where it will not be tilted by more than 5 2 During installation if the outdoor unit has to be exposed to strong wind it must be fixed securely ...

Page 19: ...2 1 2 375 14 3 4 TU48H3O 4 2 2 Condensate Drainage of the Outdoor Unit Only for the heat pump unit 1 It is required to install a drain pipe for the outdoor unit to drain out the condensate water during heating operation only for the heat pump unit 2 When installing the drain pipe apart from the drain pipe mounting hole all other holes should be plugged so as to avoid water leakage only for the hea...

Page 20: ... cuttings from entering the pipe 3 Remove the flare nuts at the stop valve of the outdoor unit and inside the accessory bag of the indoor unit then insert them to the connection pipe after that flare the connection pipe with a flaring tool 4 Check if the flare part is spread evenly and there are no cracks see Fig 4 11 Fig 4 11 4 3 2 Bending Pipes 1 The pipes are shaped by your hands Be careful not...

Page 21: ...r over 2 If the pipe is bent repeatedly at the same place it will break 4 3 3 Connecting the Pipe at the Indoor Unit Side Detach the caps and plugs from the pipes 1 Be sure to apply the pipe against the port on the indoor unit correctly If the centering is improper the flare nut cannot be tightened smoothly If the flare nut is forced to turn the threads will be damaged 2 Do not remove the flare nu...

Page 22: ...wn in the Fig 4 14 Use the medium sized sponge to insulate the coupler of the gas pipe Fig 4 14 Table 4 5 Flare nut tightening torque Pipe Diameter inch Tightening Torque Φ1 4 15 30N m 11 22ft 1b Φ3 8 35 40N m 26 29ft 1b Φ1 2 45 50N m 33 37ft 1b Φ5 8 60 65N m 44 48ft 1b Be sure to connect the gas pipe after connecting the liquid pipe completely ...

Page 23: ...d is the same as that as at the indoor side Fig 4 15 4 3 5 Checking the Pipe Connections for Gas Leaking For both indoor and outdoor unit side check the joints for gas leaking by the use of a gas leakage detector without fail when the pipes are connected 4 3 6 Heat Insulation on the Pipe Joints Indoor Side Only Stick coupler heat insulation large and small to the place where connecting pipes Fig 4...

Page 24: ...aping should be done from lower to the upper part 2 All pipes are bound and taped together and also should be trapped to prevent water from returning to the room 3 Restraint all pipes to the wall with saddles Fig 4 18 4 4 Vacuum and Gas Leakage Inspection Do not purge the air with refrigerants but use a vacuum pump to vacuum the installation There is no extra refrigerant in the outdoor unit for ai...

Page 25: ...ads 0 1MPa 14 5psig if not it indicates there is leak somewhere Then close the switch fully and then stop the vacuum pump 6 Wait for some time to see if the system pressure can remain unchanged 3 minutes for the 18k 24k units 10 minutes for the 30k 36k 42k 48k units During this time the reading of the pressure gauge at the low pressure side can not be larger than 0 005MPa 0 72psig 7 Slightly open ...

Page 26: ...4 6 Item Model Additional Refrigerant Amount for Extra Pipe TU18HKI 45g per 1 5m 1 6 ounce per 5 feet TU24HKI 90g per 1 5m 3 2 ounce per 5 feet TU30HKI TU36HKI TU42HKI TU48HKI When the height difference between the indoor unit and outdoor unit is larger than 10m 32 4 5feet an oil bend should be employed for every 6m 19 2 3 feet Fig 4 20 4 5 Installation of the Drain Hose 1 It is not allowed to con...

Page 27: ... Improperly rigged piping could lead to leaks and eventually wet furniture and belongings Fig 4 21 4 5 2 Installing the Drain Pipes 1 Insert the drain pipe to the drain outlet of the unit and then tighten the clamp securely with tape 2 Connect the extension drain pipe to the drain pipe and then tighten the clamp with tape Insulate the pipe clamp and the drain hose using heat insulation sponge 1 Me...

Page 28: ... unit take the cassette type unit for example Unit mm inch Fig 4 22 4 When the drain hose cannot keep a sufficient gradient it is necessary to fit a riser pipe field supplied to it 5 If the air flow of indoor unit is high this might cause negative pressure and result in return suction of outdoor air Therefore U type water trap shall be designed on the drainage side of each indoor unit Fig 4 23 6 I...

Page 29: ...tion of the drainage pipe joint as shown in Fig 4 26 No 2 Attach the drain elbow as shown in Fig 4 27 No 3 Attach the horizontal pipe as shown in Fig 4 28 Fig 4 26 Fig 4 27 Fig 4 28 4 5 3 Precautions When Doing Riser Piping Work 1 Make sure that heat insulation work is executed on the following 2 spots to prevent any possible water leakage due to dew condensation 1 Connect the drain hose to the dr...

Page 30: ...rain pipe To accomplish this mount supporting brackets at an interval of 1 1 5m 3 2 7 5feet Fig 4 30 4 5 4 Testing of Drain Piping After piping work is finished check if drainage flows smoothly Shown in the Fig 4 31 Add approximately 1liter of water slowly into the drain pan and check drainage flow during COOL running Fig 4 31 ...

Page 31: ...re below for the relationship of the front panel and the connecting pipe Fig 4 32 2 Improper screwing of the screws may cause the troubles shown in Fig 4 33 Fig 4 33 3 If gap still exists between ceiling and decoration panel after tightening the screws readjust the height of the indoor unit Fig 4 34 Fig 4 34 ...

Page 32: ...the Panel 1 Place the panel at the unit and latch the hooks beside and opposite the swing flap motor 2 Latch other two hooks 3 Tighten four hexagonal screws under the latches about 15mm 5 8inch 4 Adjust the panel along the direction indicated by the arrow as shown in Fig 4 36 5 Tighten the screws until the thickness of the sealing material between the panel and the indoor unit reduces to 5 8mm 1 4...

Page 33: ...stall a leakage special branch circuit breaker in accordance with the related laws and regulations and electric company standards 1 The power source capacity must be the sum of the air conditioner current and the current of other electrical appliances When the current contracted capacity is insufficient change the contracted capacity 2 When the voltage is low and the air conditioner is difficult t...

Page 34: ...rd through the insulation tube fasten it with the cord clamp Fig 4 39 1 Before starting work check that power is not being supplied to the indoor unit and outdoor unit 2 Match the terminal block numbers and connection cord colors with those of the indoor unit side Erroneous wiring may cause burning of the electric parts 3 Connect the connection cords firmly to the terminal block Imperfect installa...

Page 35: ...DC Inverter U match Series Cassette Type Unit 31 4 Electric wiring between the indoor and outdoor units Single phase units 18k 30k Fig 4 40 Single phase units 36k 42k Fig 4 41 ...

Page 36: ... Inverter U match Series Cassette Type Unit 32 Single phase units 48k Fig 4 42 5 Electric wiring of indoor unit side Remove the electric box cover from the electric box sub assy and then connect the wire ...

Page 37: ...DC Inverter U match Series Cassette Type Unit 33 For the units 18k 42k Fig 4 43 ...

Page 38: ...lines should pass through the rubber rings at different electric box covers 3 Do not bundle the connection wire of the wired controller and the communication cord together or arrange them in parallel otherwise improper operation would occur 4 The high voltage and low voltage lines should be fixed separately and securely with internal big clamps for the former and small clamps for the latter 5 Tigh...

Page 39: ...Unit shall be grounded in compliance with the applicable local and national codes 6 Electric wiring of outdoor unit side NOTICE When connecting the power supply cord make sure that the phase of the power supply matches with the exact terminal board If not the compressor will rotate reversely and run improperly Remove the big handle front board of the outdoor unit and insert the end of the communic...

Page 40: ...9 Full water protection 8 F0 Indoor ambient temperature sensor error 9 F1 Evaporator temperature sensor error 10 F2 Condenser temperature sensor error 11 F3 Outdoor ambient temperature sensor error 12 F4 Discharge temperature sensor error 13 F5 Temperature sensor error of wired controller 14 C5 Capacity code error 15 EE Outdoor memory chip error 16 PF Electric box sensor error 17 H3 Compressor ove...

Page 41: ...er temperature protection 34 P9 Zero passage protection 35 PA AC current protection 36 Pc Drive current error 37 Pd Sensor connecting protection 38 PE Temperature drift protection 39 PL Bus low voltage protection 40 PH Bus high voltage protection 41 PU Charge loop error 42 PP Input voltage abnormality 43 ee Drive memory chip error NOTICE When the unit is connected with the wired controller the err...

Page 42: ...utton and the nearby Test button simultaneously for five seconds when the unit is Off 6 2 Working Temperature Range Table 6 2 Test Condition Indoor Side Outdoor Side DB C WB C DB C WB C Nominal Cooling 26 7 80 0 19 4 67 0 35 0 95 0 23 9 75 0 Nominal Heating 21 1 70 0 15 6 60 0 8 33 47 0 6 11 43 0 Rated Cooling 26 7 80 0 19 4 67 0 46 1 115 0 23 9 75 0 Low Temp Cooling 19 4 67 0 13 9 57 0 18 0 0 Rat...

Page 43: ...ooling effect 1 The air filter is dirty or blocked 2 There is heat source or too many people inside the room 3 The door or window is open 4 There is obstacle at the air intake or outlet 5 The set temperature is too high 6 There is refrigerant leakage 7 The performance of room temperature sensor becomes worse Poor heating effect 1 The air filter is dirty or blocked 2 The door or window is not firml...

Page 44: ...ean the unit with gasolene benzene thinner polishing powder or liquid insecticide otherwise it would cause discoloration and deformation of the unit WARNING Do not wet the indoor unit in case of electric shock or fire hazard Increase the frequency of cleaning if the unit is installed in a room where the air is extremely contaminated As a yardstick for yourself consider cleaning the filter once a h...

Page 45: ...he 18k 48k cassette type unit 1 Remove the screws by a screwdriver as shown in the picture 2 Push those two fasteners and open the panel grille 2 Disassemble the air inlet grille Open the air inlet grille at 45 raise it and remove the grille 3 Disassemble the filter screen Draw out the filter screen and remove it ...

Page 46: ...er screen by a vacuum cleaner or wash it by flashing water If the oil stain on the filter can not be removed or cleaned up wash it by warm water meld with the detergent Dry the filer in the shadow NOTICES 1 Never use hot water over 45 C 113 F in case of color fading or turning yellow 2 Never dry it by fire so as to prevent the filter caught fire or deformation 6 Reset the filer The same as step 3 ...

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