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Tecnibel CA250R5TA Series Installation Manual Download Page 35

9-4. Taping the Tubes

(1)

At this time, the refrigerant tubes (and electrical wiring
if local codes permit) should be taped with armoring
tape as 1 bundle. To prevent the condensate from
overflowing the drain pan, keep the drain hose separate
from the refrigerant tubing.

(2)

Wrap the armoring tape from the bottom of the outdoor
unit to the top of the tubing where it enters the wall.
As you wrap the tubing, overlap half of each previous
tape turn.

(3)

Clamps the tubing bundle to the wall, using 1 clamp
approx. every 1 m.

9-5. Finishing the Installation

After finishing insulating and taping over the tubing, use sealing
putty to seal off the hole in the wall to prevent rain and draft from
entering.

Do not wind the armoring tape too tightly since this will decrease
the heat insulation effect. Also be sure the condensation drain
hose splits away from the bundle and drips clear of the unit and
the tubing.

NOTE

Clamp

Drain hose

Isulated tubes

Apply putty here

Tubing

Air and moisture remaining in the refrigerant system have
undesirable affects 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 refrigerant 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.

10. AIR PURGING

■

AIR PURGING WITH A VACUUM PUMP (FOR
TEST RUN)

Preparation

Check that each tube (both narrow and wide) between the
indoor and outdoor units have been properly connected and
all wiring for the test run has been completed. Remove the
valve caps from both the wide and narrow service valves on
the outdoor unit. Note that both narrow and wide tube service
valves on the outdoor unit are kept closed at this stage.

Leak test

(1)

With the service valves on the outdoor unit remaining
closed, remove the 1 / 4 in. flare nut and its bonnet on
the wide tube service valve. (Save for reuse).

(2)

Attach a manifold valve (with pressure gauges) and
dry nitrogen gas cylinder to this service port with charge
hoses.

Manifold valve

Pressure
gauge

Charge hose

Nitrogen gas cylinder
(in vertical standing
position)

Service
valve

Wide tube

Narrow
tube

Outdoor unit

Intdoor unit

34

EG

Hi

Summary of Contents for CA250R5TA Series

Page 1: ...lit system air conditioner Condizionatore d aria split system Climatiseurs split system EG I F CA250R5TA CA360R5TA CA480R5TA SPA250R5TA SPA360R5TA SPA480R5TA DSAV250R5TA DSAV360R5TA DSAV480R5TA CAV250R5TA CAV360R5TA CAV480R5TA SPAV250R5TA SPAV360R5TA SPAV480R5TA DSAV250R5TA DSAV360R5TA DSAV480R5TA R 22 ...

Page 2: ...for top discharge 2 2 Installing the unit in heavy snow areas 2 3 Precautions for installation in heavy snow areas 2 4 Dimensions of snow wind proof ducting 2 5 Wind shield 3 HOW TO INSTALL THE INDOOR UNIT page 9 4 WAY AIR DISCHARGE SEMI CONCEALED TYPE page 9 3 1 Suspending the Indoor Unit 3 2 Preparation for Suspending 3 3 Burying Inside the Ceiling 3 4 Installing the Drain Piping 3 5 Checking th...

Page 3: ...e Compensation 8 5 State at Time of Power ON 9 HOW TO PROCESS TUBING page 32 9 1 Connecting Tubing Side 9 2 Connecting Tubing between Indoor and Outdoor Unit 9 3 Insulation of refrigerant Tubing 9 4 Taping the Tubes 9 5 Finishing the Installation 10 AIR PURGING page 34 11 HOW TO INSTALL THE CEILING PANEL page 36 4 WAY AIR DISCHARGE SEMI CONCEALED TYPE page 36 11 1 Before Installing the Ceiling Pan...

Page 4: ... from any moving parts Clean up the site after you finish remembering to check that no metal scraps or bits of wiring have been left inside the unit being serviced CAUTION This symbol refers to a hazard or unsafe practice which can resuklt in personal injury or product or property damage SPECIAL PRECAUTION ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH ONLY A QUALIFIED EXPERIENCED ELEC...

Page 5: ...Flaring oil New tools Yes Yes Yes Yes Yes R22 tools compatible with R407C No No Yes No No Remarks Types of refrigerant and refrigerating machine oil and pressure gauge are different To resist pressure and oil material has been changed Use a conventional vacuum pump if it is equipped with a check valve If it has no check valve purchase and attach a vacuum pump adaptor Leak detector for CFC an HCFC ...

Page 6: ...ealing recessed portion of power supply Tube connector 1 For sizing up of narrow tube from 6 35 to 9 52 only for 25 type Table 1 1 4 Way Air Discharge Semi Concealed Table 1 2 Ceiling Mounted White for insulating Part Name Figure Q ty Remarks Special washer 4 For suspending indoor unit from ceiling Drain insulator 1 For drain hose joint Flare insulator 1 Set For drain narrow tube joints Drain hose...

Page 7: ...ssible Refer to Table 1 4 for the details Installation Example 1 INDOOR UNIT Tubing length L OUTDOOR UNIT Elevation difference H Table 1 3 Concealed Duct Table 1 4 6 35 1 4 15 88 5 8 50 50 30 30 a 45 3 0 3 2 Tubing size Narrow tube mm in outer diameter Wide tube mm in Limit of tubing length m Outdoor unit is placed upper m Limit of elevation difference between the two units Outdoor unit is placed ...

Page 8: ...tions DO choose a place as cool as possible choose a place that well ventilated and autside air temperature does not exceed maximum 45 c constantly allow enough room around the unit for air intake exhaust and possible maintenance Fig 2 2 provide a solid base about 15 cm above ground level to reduce humidity and possible water damage in unit and drecrease service life Fig 2 3 use lug bolts or equal...

Page 9: ...strong wind the following problems may occur when the outdoor unit is not provided with a platform and snow proof ducting a The outdoor fan may not run and damage of the unit may be caused b There may be no air flow c The tubing may freeze and burst d The condenser pressure may drop because of strong wind and the indoor unit may freeze 2 3 Precautions for Installation in Heavy Snow Areas 1 The pla...

Page 10: ...ubing side Drain hose side Refrigerant tubing joint narrow tube side Refrigerant tubing joint wide tube side Drain inspection port Suspension lug Power supply inlet Unit mm 820 ceiling opening dimension 590 suspension bolt pitch Fig 3 1 Fig 3 3 Fig 3 2 3 HOW TO INSTALL THE INDOOR UNIT Table 3 1 Table 3 2 Unit mm Unit mm 2 5 Wind Shield for SHL SCL Model It is recommended to install wind shields fo...

Page 11: ...allation drawiong provided Transparent part for checking drainage Hose band supplied Hard PVC pipe pipe not supplied Drain hose supplied Packing supplied Nuts and washers 2 sets Suspension bolt Suspension lug Uppper Lower More than 60 mm 48 mm Fig 3 4 Fig 3 5 CAUTION Tighten the hose band firmly after the supplied drain hose has been inserted to touch the ends of both of the connection pipes as sh...

Page 12: ...e a pencil to mark the drill holes Fig 3 14 NOTE Since the diagram is made of paper it may shrink or stretch slightly because of high temperature or humidity For this reason before drilling the holes maintain the correct dimensions between the markings 2 Drill holes at the 4 points indicated on the fullscale diagram 3 Depending on the ceiling type a Insert suspension bolts as shown in Fig 3 15 or ...

Page 13: ... Fig 3 16 Fig 3 17 Pul out the Air Intake grille pushing claws of the hinges Hinge Screw Latch Air intake grille Suspension bolt field supply Ceiling surface Washer supplied Double nut field supply Fixture unit Slide toward front side Sode panel Ceiling surface Nut field supply Suspension bolt Washer supplied Approx 25 mm S l i d e Fig 3 18 Suspension bolt field supply Washer supplied Washer field...

Page 14: ...nect the drain piping so that it slopes downward from the unit to the outside Fig 3 29 Never allow traps to occur in the course of the piping Insulate any piping inside the room to prevent dripping Use the supplied drain pipe to connect the drain pipe with the drain outlet of the indoor unit After connecting the drain pipe securely wrap the supplied drain pipe insulator around the pipe seal the ga...

Page 15: ...bove the ceiling so that the indoor unit and ducts are not visible Only the air intake and air outlet ports are visible from below The minimum space for installation and service is shown in Table 3 3 It is recommended to provide inspection access 450 x 450 mm for checking and servicing the electrical system Fig 3 31 and Table 3 4 show the detailed dimensions of the indoor unit 3 10 Suspending the ...

Page 16: ... insulator around the pipe then secure it with the supplied clamps Fig 3 38 NOTE Make sure the drain pipe has a downward gradient 1 100 or more and that there are no water traps Fig 3 37 Fig 3 38 EG Fig 3 35 Fig 3 34 1 When placing the unit inside the ceiling determine the pitch of the suspension bolts refering to the dimensional data on the previous page Fig 3 31 Tubing must be laid and connected...

Page 17: ...41 Fig 3 42 3 12 Increasing the Fan Speed If external static pressure is too great due to long extension of ducts for example the air flow volume may drop too low at each air outlet This problem is solved by increasing the fan speed using the following procedure 1 Remove 4 screws on the electrical component box and remove the cover plate 2 Disconnect the fan motor sockets in the box 3 Take out the...

Page 18: ...ked inside the unit and can be accessed through the access panel Use tube benders to extend internal tubing to the outside 4 HOW TO INSTALL THE OUTDOOR UNIT Compressor Plastic spacer Anchor bolts not supplied Inter unit wiring outlets Rear power supply wiring outlets Right Down Tubing outlets Front Access panel Height min 15 cm Packing skid Fig 4 1 Fig 4 2 Fig 4 3 EG CAUTION To mount the tube co v...

Page 19: ... the manufacturer because special purpose tools are required 5 2 Recommended Wire Lenght and Wire Diameter for Power Supply System 1 Single Type One indoor unit one outdoor unit Type A Power Supply 4 mm2 B Inter unit wiring 2 5 mm2 Power Supply Terminal Base 425 type 3 phase 102 m 97 m 50 m 50 m 15 A 15 A 25 A 5 5 mm2 436 type 3 phase 96 m 60 m 50 m 50 m 15 A 20 A 25 A 5 5 mm2 448 type 3 phase 63 ...

Page 20: ...utdoor Unit R C Address on the PCB 0 S2 BLK 0 Factory shipped state Power supply 380 415 V 3 N 50 Hz Ground Ground Remote controller Option RED WHT BLK Single phase outdoor unit Indoor Unit Inter unit control wiring Low voltage Inter unit power wiring Line voltage Outdoor Unit R C Address on the PCB 0 S2 BLK 0 Factory shipped state Power supply 220 240 V 3 N 50 Hz Ground Ground Remote controller R...

Page 21: ...it Outdoor Unit R C Address on the PCB 8 S2 BLK Power supply 380 415 V 3 N 50 Hz Ground Ground Remote controller Option RED WHT BLK 2 Basic wiring diagram for group control This diagram shows when several units max 8 are controlled by a remote controller In this case a remote controller can be connected at any indoor unit NOTE R C Address should be set before turning the power on Auto address sett...

Page 22: ...er wiring or run it in the same metal conduit because this may cause malfunction Install the remote controller away from sources of electrical noise Install a noise filter or take other appropriate action if electrical noise affects the power supply circuit of the unit The mounting position for the remote controller should be located in an accessible place for control Never cover over the remote c...

Page 23: ...Indoor unit Outdoor unit Outdoor unit Outdoor unit Indoor unit Indoor unit Indoor unit Indoor unit Inter unit control wiring Terminal 3P Remote controller Branch wiring for group control Ground earth Outdoor unit Outdoor unit Outdoor unit Multiple remote control RED WHT BLK RED WHT BLK RED WHT BLK Wiring procedure Do the wiring according to the wiring diagram Recommended wire diameter and allowabl...

Page 24: ...sub Option Option Connection wiring for remote controller field work total lenght up to 500 m 3P terminal base White Red Black Earth Indoor unit Possible cause of trouble Alarm message E1 E2 E3 E4 E5 E6 E7 E8 E9 E10 E11 E12 E13 E14 E15 E16 E17 E18 Error receiving of serial communications signal Error trasmitting of serial communications signal Error receiving of serial communications signal Error ...

Page 25: ...d Compressor motor is overloaded Compressor motor is locked Compressor current detection circuit is abnormal Low pressure protector is activated low pressure switch or low pressure prevention Compressor contactor Mg SW is chattering Protective device in indoor unit is activated Protective device in outdoor unit is activated Protective device in indoor unit is activated Indoor thermistor is either ...

Page 26: ...truction Manual 1 Pan head tapping screw 4 4 x 10 Truss head tapping screw 2 4 x 16 Vinyl clamp 3 L 150 ALARM MESSAGE LABEL 1 4 WAY AIR DISCHARGED SEMI CONCEALED TYPE 7 1 Indicator section Installation Remove the mark section and install the indicator section 1 Remove the ceiling panel 2 Remove the corner cover behind the mark section 3 screws 3 Remove the mark section inside the ceiling panel 2 s...

Page 27: ...flap cannot be stopped at a certain position even when the FLAP button on the remote controller is pressed CEILING MOUNTED TYPE 7 3 Indicator Section Installation Remove the side panel to install the indicator section Fig 7 5 1 Remove the side panel Open the air intake grille remove the screw at one place and then remove the side panel by sliding it toward the front arrow direction 2 Remove cover ...

Page 28: ...mple installing a noise filter Fig 7 6 Electrical component box Operating controller NOTE Be sure to remove CN8 connector If otherwise the flap cannot be stopped at a certain position even when the FLAP button on the remote controller is pressed W2 W3 ADDRESS 1 2 3 SENSOR A C RCU Fig 7 8 A AIR CONDITIONER SET TEMP 1HR TIMER TEMP ON I OFF MODE NIGHT SETBACK FLAP FAN SPEED SELECT HH MM TIME SET BATT...

Page 29: ...e sure to set the ADDRESS switch on the operation controller to 1 Fig 7 10 NOTE In case of 4 way air discharge type test run operations is not possible without the ceiling panel installation During the test run all of the 3 indicator lamps on the indoor unit will flash During the test run the air conditioner runs continuously and the thermostat does not control the system To protect the air condit...

Page 30: ...tallation The remote controller can be operated from either a non fixed position or a wall mounted position To ensure that the air conditioner operates correctly do not install the remote controller in the following places In direct sunlight Behind a curtain or other place where it is covered More than 8 m away from the air conditioner In the path of the air conditioner s airstream Where it may be...

Page 31: ...il the tubing and wiring to the outdoor unit are completed CAUTION Do not twist the control wiring with the power wiring or run it in the same metal conduit because this may cause malfunction Install the weekly timer away from sources of electri cal noise Install a noise filter or take other appropriate action if electrical noise affects the power supply circuit of the unit ACCESSORIES No Accompan...

Page 32: ...edure Do the according to the following procedure 1 Loosen the retaining screw of the lead wire of weekly timer remove the collar and connect the provided connection wiring to the timer terminal 4P connector of weekly timer Place the provided connection wiring into the groove neatly and then fit back the fastening collar 2 Take out the provided connection wiring through the lead wire drawing out p...

Page 33: ...following characteristics inside surface is glossy and smooth edge is smooth tapered sides are of uniform length NOTE NOTE 9 1 Connecting Tubing Sides Use of the Flaring Method Many of the conventional split system air conditioners employ the flaring method to connect refrigerant tubes which run between indoor and outdoor units In this method the copper tubes are flared at each end and connected w...

Page 34: ...oisture Aplly refrigerant lubricant here and here Union Flare nut Torque wrench Spanner Outdoor unit Indoor unit Tube Dia Tightening Torque 6 35 mm 14 Approx 140 180 kg cm 9 52 mm 3 8 Approx 340 420 kg cm 15 88 mm 5 8 Approx 680 820kg cm 19 05 mm 3 4 Approx 1000 1200 kg cm 9 3 Insulation of Refrigerant Tubing CAUTION Always insulate tubes after draining water and completing leak tests on all conne...

Page 35: ...essure 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 refrigerant 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 10 AIR PUR...

Page 36: ...ak test 5 After the system is found to be free of leaks relieve the nitrogen pressure by opening the Lo knob of the manifold valve When the system pressure is reduced to normal disconnect the hose from the cylinder Evacuation 1 Attach the charge hose to the low side end and to the vacuum pump Close the Hi knob of the manifold valve Confirm that the Lo knob of the manifold valve is open Then run th...

Page 37: ... air conditioner is now ready to test run CAUTION To avoid gas from leaking when removing the charge hose make sure the stem of the wide tube is turned all the way out BACK SEAT position Wide tube Outdoor unit Indoor unit Max allowable tubing lenght at shipment Required additional charge 50 m Narrow tube 11 HOW TO INSTALL THE CEILING PANEL 4 WAY AIR DISCHARGE SEMI CONCEALED TYPE CAUTION Never touc...

Page 38: ...s Adjust the louver to the desired angle using the remote controller The louver also has an automatic air sweeping mechanism NOTE If the connector is not connected a misoperation signal P9 on the remote control display will be displayed when the unit is turned on 5 Install the air filter and air intake grille by performing the steps in section 11 1 in reverse Be sure to rehook its safety string be...

Page 39: ...oup control please follow the procedure described in sec 12 4 for addressing At the end of this step the address of each indoor units will be like this UNIT NO R C No Indoor unit number Refrigerant Circuit number Narrow tube service valve 3 way valve Fully OPEN Test run procedure The purpose of the test run function is to let you control the operation of the unit directly without the thermostat tu...

Page 40: ...ration will start CODE No Changes from flashing to ON state If the error is happened during the operation the alarm message will display Check and remove the cause If you want to interrupt the operation press the CL button then the unit stands in waiting mode Press the SET buton If the auto address operation finishes the display will disappear Execute the operation of the other R C line in the sam...

Page 41: ...nostics function table see Sec 12 7 12 8 12 9 and if there is a location to correct correct it Recheck the test items before test operation Check the indoor and outdoor unit combination wiring Sec 12 6 Set the remote controller to test operation Return the remote controller to normal Sec 12 1 Sec 5 3 Sec 12 3 Press A ADD S1 button See P22 Execute auto address operation with the remote controller S...

Page 42: ...4P DIP switch ON side ON side ON ON OFF side OFF side No Outdoor PCB Model No 1 2 3 4 425 type 1 phase ON ON ON OFF 425 type 3 phase ON ON ON OFF 436 type 3 phase OFF ON OFF ON 448 type 3 phase OFF OFF ON ON S4 Capacity code No Outdoor PCB Model No 1 2 AER 425 SHLE OFF ON AER 425 SHL3E OFF OFF AER 436 SHL3E OFF OFF AER 448 SHL3E OFF OFF S5 Model code No Outdoor PCB Model No 1 2 AER 425 SCLE ON ON ...

Page 43: ... case of multiple remote control Remote controller not properly connected Power supply not ON Remote controller not properly connected Wiring connection fault of Wiring connection fault of some indoor outdoor units indoor outdoor units inside the group Power supply of outdoor unit not ON Combination of indoor outdoor units is wrong Power supply of some indoor unit is not ON 2 main remote controlle...

Page 44: ...rqué puisque il est conforme aux Directives Basse Tension n 73 23 CEE et 93 68 CEE Compatibilité Electromagnétique n 89 336 CEE 92 31 CEE et 93 68 CEE Cette déclaration sera nulle en cas d une utilisation différente de celle déclarée par le Constructeur et ou de la non observation même si partielle des instructions d installation et ou d utilisation S A C Printed in italy R D 28 Reyrieux BP 131 01...

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