background image

59

GRFP

Fig. 8-5

Fig. 8-6

8-3.  Charging Additional Refrigerant

Charging additional refrigerant (calculated from the
narrow tube length as shown in P. 12, Amount of
additional refrigerant charge) using the narrow tube
service valve. (Fig. 8-5)

Use a balance to measure the refrigerant accurately.

If the additional refrigerant charge amount cannot
be charged at once, charge the remaining refriger-
ant in liquid form by using the wide tube service
valve with the system in Cooling mode at the time
of test run. (Fig. 8-6)

* If an additional refrigerant charge has been per-

formed, list the refrigerant tubing length and
amount of additional refrigerant charge on the
product label (inside the panel).

8-4.  Finishing the Job

(1) With a hex wrench, turn the narrow tube service

valve stem counter-clockwise to fully open the

valve.

(2) Turn the wide tube service valve stem counter-

clockwise to fully open the valve.

(3) Loosen the charge hose connected to the wide

tube service port (5/16 in.) slightly to release the

pressure, then remove the hose.

(4) Replace the 5/16 in. flare nut and its bonnet on the

wide tube service port and fasten the flare nut

securely with an adjustable wrench or box wrench.

This process is very important to prevent gas from

leaking from the system.

(5) Replace the valve caps at both wide and narrow

service valves and fasten them securely.

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.

Valve

Liquid

Manifold valve

Pressure
gauge

Lo

Hi

Outdoor unit

Narrow 
tube

Wide 
tube

Close

Close

Close

R410A

Outdoor unit

Narrow 
tube

Wide 
tube

Open

Open

Open

04-393 DC INV Tech p 45-63  12/13/04  11:34 AM  Page 59

Содержание CAFP 124 R

Страница 1: ...R Refrigerant R410A is used in the outdoor units GRFP 255 R GRFP 365 R GRFP 485 R GRFP Outdoor Units GRFP 255 L GRFP 365 L GRFP 485 L Optional Controllers Remote Controller K70D036Z Wireless Remote Co...

Страница 2: ...in alu minum fins on the air conditioner can cut your fingers When Installing In a Room Properly insulate any tubing run inside a room to prevent sweating that can cause dripping and water damage to w...

Страница 3: ...rrying power etc Most importantly the multi air conditioner system is able to replenish a large amount of refrigerant com pared to conventional individual air conditioners If a single unit of the mult...

Страница 4: ...nal vacuum pump if it is equipped with a check valve If it has no check valve purchase and attach a vacuum pump adapter Leak detector Yes No Leak detectors for CFC and HCFC that react to chlorine do n...

Страница 5: ...uid 3 2 Use R410A exclusive cylinder only Single outlet valve with siphon tube Liquid refrigerant should be recharged with the cylinder standing on end as shown 04 393 DC INV Tech p a 44 12 15 04 3 04...

Страница 6: ...g 3 17 Installing the Drain Piping Concealed Duct Type DSAFP Type 35 3 18 Required Minimum Space for Installation and Service 3 19 Suspending the Indoor Unit 3 20 Installing the Drain Piping 3 21 Chec...

Страница 7: ...c Functions and Corrections CAFP SPAFP DSAFP MAFP Type 10 26 Automatic Address Setting 10 27 Caution for Pump Down 11 HOW TO INSTALL THE WIRELESS REMOTE CONTROLLER RECEIVER 99 K70D037Z for 4 Way Casse...

Страница 8: ...ately from a local source you will need 1 Deoxidized annealed copper tube for refrigerant tubing 2 Foamed polyethylene insulation for copper tubes as required to precise length of tubing Wall thicknes...

Страница 9: ...ing screw 10 For improved tubing appearance For fixing the rear panel Truss head Phillips 4 16 mm Insulator 1 For insulating flare nut 255 type only Table 1 3 Ceiling Mounted Part Name Figure Q ty Rem...

Страница 10: ...over to HT tap Use 3 8 for suspension bolts Field supply for suspending bolts and nuts 1 5 Tubing Size A Single type Refrigerant tubing between the indoor and outdoor units shall be kept as short as p...

Страница 11: ...n tubing double twin Maximum difference between lengths of No 2 distribution tubing double twin Maximum allowable height difference Maximum indoor outdoor height difference If outdoor unit is higher I...

Страница 12: ...f the liquid narrow tubing Amount of additional refrigerant charge g Do not remove refrigerant from the system even if the result of the calculation is negative Use with the current refrigerant charge...

Страница 13: ...30 40 kg Range below the density limit of 0 3 kg m3 Countermeasures not needed Range above the density limit of 0 3 kg m3 Countermeasures needed Check of limit density When installing an air condition...

Страница 14: ...rrow tube K70A056Z Table 1 9 Dimensions of connections inner diameter of tubing Unit mm Position A B C D E F G Size 28 58 25 4 19 05 15 88 12 7 9 52 6 35 100 35 80 80 295 9 52 9 52 9 52 1 2 1 2 3 4 5...

Страница 15: ...n and other materials that were supplied with the outdoor unit Cut at a position that is as far away as possible from the dowel pin After cutting the tube be sure to remove any burrs and to finish the...

Страница 16: ...upplied tube connectors How to Install Distribution Joints Use the supplied distribution joints to complete refrig erant tubing work Install distribution joints so that the tubes are horizon tal after...

Страница 17: ...h to support the weight of the unit select a location where tubing and drain pipe have the shortest run to the outdoor unit allow room for operation and maintenance as well as unrestricted air flow ar...

Страница 18: ...d protect the unit against possible water damage and decreased ser vice life Fig 2 7 use lug bolts or equal to bolt down unit reducing vibration and noise 4 1 2 3 1 More than 1cm More than 100cm More...

Страница 19: ...trong wind and the indoor unit may freeze 2 5 Precautions for Installation in Heavy Snow Areas 1 The platform should be higher than the max snow depth Fig 2 9 2 The 2 anchoring feet of the outdoor uni...

Страница 20: ...rmine the pitch of the suspension bolts using the supplied full scale installation diagram The diagram and table Fig 3 3 and Table 3 2 show the relationship between the positions of the sus pension fi...

Страница 21: ...an 15 mm as shown in Fig 3 4 3 Thread the 3 hexagonal nuts and 2 washers field supply onto each of the 4 suspension bolts as shown in Fig 3 5 Use 1 nut and 1 washer for the upper side and 2 nuts and 1...

Страница 22: ...more The hose may slip off Align the hose bands with the end of the hose Tighten the hose band firmly Make sure that the bead is not covered by the hose band Fig 3 6 2 After checking the drainage wra...

Страница 23: ...ts connection to the unit Fasten the pipe to a wall frame or other sup port as close to the unit as possible Fig 3 11 Provide insulation for any pipes that are run indoors 3 5 Checking the Drainage Af...

Страница 24: ...above precautions are also applicable if tub ing goes through the wall in any other location 4 Using a sabre saw key hole saw or hole cutting drill attachment make a hole dia 80 mm in the wall Fig 3 1...

Страница 25: ...to Install the Indoor Unit In principle with this model wiring can be completed without removing the grille However if it is necessary to change the settings on the PCB follow the procedure below Rem...

Страница 26: ...g 3 27 Raising the clamp to lift up the indoor unit will facili tate this work Fig 3 28 To remove the indoor unit press up on the 2 loca tions marks on the lower part of the unit frame to disconnect t...

Страница 27: ...NING Do not supply power to the unit or operate it until all tubing and wiring to the outdoor unit are completed Left or left rear tubing 1 Pass the tubing and drain hose into the rear of the indoor u...

Страница 28: ...rt Top outlet port Remote controller wiring inlet port 30 knock out Power inlet port 40 knock out Power inlet port 40 knock out Knock out Side panel Position of plate inside side panel Side panel Left...

Страница 29: ...e diagram 3 Depending on the ceiling type a Insert suspension bolts as shown in Fig 3 38 or b Use existing ceiling supports or construct a suit able support as shown in Fig 3 39 NOTE WARNING It is imp...

Страница 30: ...supply 5 Before suspending the indoor unit remove the 2 or 3 screws on the latch of the air intake grilles open the grilles and remove them by pushing the claws of the hinges as shown in Fig 3 41 The...

Страница 31: ...Confirm that the indoor unit is evenly suspended For the installa tion to be correct leave a clearance of about 10 mm between the ceiling panel and the ceiling surface and fill the gap with an approp...

Страница 32: ...The drain hose is connected below the refrigerant tubing 2 Installing the drain hose To install the drain hose first place 1 of the 2 hose bands over the unit drain port and the other hose band over t...

Страница 33: ...om the unit to the outside Fig 3 53 Never allow traps to occur in the course of the piping Insulate any piping inside the room to prevent drip ping After the drain piping pour water into the drain pan...

Страница 34: ...roller For details refer to Fig 3 50 For the method used to insert the wiring refer to the figure below Fig 3 55 2 How to carry out wiring Open the knock out hole on the rear or top of the main unit A...

Страница 35: ...662 600 700 780 290 262 680 715 180 340 8 12 200 3 962 900 1 000 1 080 290 272 980 1 015 130 245 250 12 16 180 5 245 1 1 442 1 380 1 480 1 560 335 310 1 460 1 495 130 490 240 16 18 230 6 245 2 No of...

Страница 36: ...t test the strength of each attached suspension bolt 1 When placing the unit inside the ceiling determine the pitch of the suspension bolts referring to the dimensional data on the previous page Fig 3...

Страница 37: ...d to pre vent water leaks The PVC pipe must be purchased separately The transparent drain part on the unit allows you to check drainage Fig 3 63 CAUTION Do not use adhesive at the drain connection por...

Страница 38: ...e Fig 3 68 3 21 Checking the Drainage After wiring and drain piping are completed use the following procedure to check that the water will drain smoothly For this prepare a bucket and wiping cloth to...

Страница 39: ...g the fol lowing 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 booster cable sockets at both ends...

Страница 40: ...rain socket For details refer to the instruction manual of the drain socket optional part STK DS25T 4 3 Routing the Tubing and Wiring The tubing and wiring can be extended out in 4 direc tions front r...

Страница 41: ...ibility for any damage or misoperation that occurs as a result of such unauthorized changes 7 Regulations on wire diameters differ from locality to locality For field wiring rules please refer to your...

Страница 42: ...nded Wire Length and Wire Diameter for Power Supply System for the explanation of A B C D and E in the above diagrams 2 The basic connection diagram of the indoor unit shows the 7P terminal board so t...

Страница 43: ...outdoor units When shipping In shorted condition Otherwise the communication of S net link system is not performed For a system without link no con nection wiring between outdoor units do not remove t...

Страница 44: ...tightly connected When connecting each power wire to the terminal fol low the instructions on How to connect wiring to the terminal and fasten the wire securely with the fixing screw of the terminal...

Страница 45: ...l box for flush mounting 2 Attach the back case with the 2 small screws pro vided Using a screwdriver push open the cut outs on the back case These holes are for screws Use the spacers and take care n...

Страница 46: ...owing the order of the group address when the remote controller is operated Group control using 2 remote controllers It does not matter which of the 2 remote controllers you set as the main controller...

Страница 47: ...button Press the button to finish service mode To display the trouble history Press both and buttons on the remote controller for more than 4 seconds together Change the alarm message SET TEMP button...

Страница 48: ...the group address is set to the address of the master indoor unit If both the remote sensor and remote controller are used do not use the temperature sensor in the remote con troller 6 5 Connecting to...

Страница 49: ...connector and connect the remote controller cord optional to the connector on the remote controller unit Insert the remote controller cord optional into the groove and bend it into the correct shape...

Страница 50: ...Indoor unit is detecting error signaled from outdoor unit Outdoor unit is detecting error signaled from indoor unit Automatic address setting failed An indoor unit detected trouble in the signal from...

Страница 51: ...ure sensor E1 Indoor heat exchanger temperature sensor E2 Indoor temperature sensor Discharge temperature TD Outdoor heat exchanger temperature C1 Outdoor heat exchanger temperature C2 Outdoor air tem...

Страница 52: ...N times The cycle then repeats M 2 P alarm 6 L alarm N Alarm No Refer to 1 Examples of alarm display below 3 H alarm 4 E alarm 5 F alarm Alternate blinking during alarms Insufficient gas indicator 0...

Страница 53: ...eamer or file This process is impor tant and should be done carefully to make a good flare Be sure to keep any contaminants moisture dirt metal filings etc from entering the tubing Figs 7 1 and 7 2 Wh...

Страница 54: ...ten the flare nuts apply specified torque as at right When removing the flare nuts from the tubing con nections or when tightening them after connecting the tubing be sure to use 2 monkey wrenches or...

Страница 55: ...tor at both ends with the sup plied vinyl clamps Fig 7 10 Insulation material The material used for insulation must have good insu lation characteristics be easy to use be age resis tant and must not...

Страница 56: ...h previous tape turn 3 Clamp the tubing bundle to the wall using 1 clamp approx each meter Fig 7 12 Do not wind the armoring tape too tightly since this will decrease the heat insulation effect Also e...

Страница 57: ...rrow 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 The refrigerant charge at the time of shipment is only guar...

Страница 58: ...Connect the vacuum pump to the wide tube valve and apply vacuum at a pressure of 755 mmHg 5 torr or below Continue vacuum application for a minimum of 1 hour after the pressure reaches 755 mmHg 1 Att...

Страница 59: ...service valve stem counter clockwise to fully open the valve 2 Turn the wide tube service valve stem counter clockwise to fully open the valve 3 Loosen the charge hose connected to the wide tube servi...

Страница 60: ...ange of 12 17 mm If not within this range malfunction or other trouble may result A Ceiling side Main unit Ceiling opening dimension A Fig 9 1 Wing Fig 9 2 Fig 9 3 2 Fig 9 5 9 1 Before Installing the...

Страница 61: ...uare hole in unit Temporary fastener Push when you remove Temporary fastener Fig 9 7 Drain tubing corner Refrigerant tubing corner Panel installation hole 4 locations Ceiling panel Washer head screws...

Страница 62: ...oes not become caught Be sure to attach the safety cord to the ceiling panel unit as shown in the figure at right This keeps the air intake grille from accidentally dropping Direction that the unit fa...

Страница 63: ...panel for servicing remove the air intake grille and air filter disconnect the wiring connector inside the electrical component box and then remove the 4 mounting screws 9 7 Adjusting the Auto Flap T...

Страница 64: ...warm to the touch and the crankcase heater around the feet of the compressor should be hot to the touch Fig 10 1 6 Both the wide and narrow tube service valves are open If not open them now Fig 10 2...

Страница 65: ...utdoor power Set the remote controller to test run Turn ON the indoor and outdoor power Return the remote controller to normal control YES YES YES NO NO NO Automatic address See 10 4 See 10 8 1 5 See...

Страница 66: ...compressors for a minimum of 10 minutes in order to check for open phase When performing a test run using a wired remote controller operation is possible without attaching the cas sette type ceiling...

Страница 67: ...in the left Same as in the left Same as in the left Simultaneous operation multi system flexible combination Same as in the left Same as in the left Same as in the left Same as in the left Same as in...

Страница 68: ...nnect individual remote controllers for independent operation Be careful to avoid miswiring when connecting the wires Miswiring will damage the units 1 2 1 2 1 2 U2 U1 0 L N N U1 U2 1 2 L L N 1 2 U2 U...

Страница 69: ...witch Change the setting Indoor power crossover wiring up to 16 units no heater units only Inter unit control wiring WHT BLK Leakage breaker Leakage breaker Leakage breaker Leakage breaker Wiring proc...

Страница 70: ...imer time button and button simultaneously Hold for 4 seconds or longer Then press the button Item code AA appears All systems automatic address setting Automatic address setting is performed in seque...

Страница 71: ...r switch main Remote controller switch main Indoor unit Indoor unit 1 Outdoor unit Indoor unit 2 Indoor unit 3 Outdoor unit Ground Ground Ground Ground Ground Ground Remote controller switch sub Remot...

Страница 72: ...ontrol switch to TEST Turn ON the indoor and outdoor power Slide the indoor unit control switch back to ON YES NO YES NO YES NO See 10 13 3 See 10 13 3 See 10 15 See 10 11 See 10 16 Check the combinat...

Страница 73: ...oller for 10 minutes Install the remote controller in a position where the signal can be reliably received by the unit When group control is engaged be sure to use the body sensor 10 12 2 Using the re...

Страница 74: ...lain the operation manual and have the customer perform the actual steps Be sure to pass the manuals and warranty certificate to the customer Check that the AC 220 240 V wiring is not connected to the...

Страница 75: ...nits correctly Connect the units correctly Perform automatic address setting See 10 16 Reverse 2 phases of the outdoor unit 3 phase power and connect them correctly Same as in the left Same as in the...

Страница 76: ...ring diagram 1 Single type and simultaneous operation multi system Simultaneous operation multi system Up to 4 Double Twin indoor units can be connected to 1 outdoor unit for operation However coordin...

Страница 77: ...tdoor unit Ground Ground Ground Ground Ground Ground Ground System address rotary switch Change the setting to 1 System address rotary switch Change the setting to 2 Indoor power crossover wiring up t...

Страница 78: ...wiring diagram 2 Set the system addresses 1 2 System address No System address 10s digit 2P DIP switch System address 1s place Rotary switch 0 Automatic address Setting at shipment 0 1 If outdoor uni...

Страница 79: ...s used set the wired remote controller to Sub If 2 wireless remote controllers are used set the wireless PCB DIP switch on the second remote controller to Sub 10 16 6 Indoor unit address setting If mu...

Страница 80: ...ol PCB 2 HP Indoor unit control PCB 3 HP DIP switch Address switch SW101 SW102 DIP switch Address switch SW101 SW102 Remote controller address display Indoor unit PCB address DIP switch Main Sub Off O...

Страница 81: ...the actual steps Be sure to pass the manuals and warranty certificate to the customer Check that the AC 220 240 V wiring is not connected to the inter unit control wiring connector terminal If AC 220...

Страница 82: ...Set the Outdoor Unit System Address Set the automatic address setting from outside unit or remote controller See 10 22 1 How to Set Automatic Address Can operation be started Refer to Table of Self D...

Страница 83: ...tely 3 minutes after the power is turned ON or after it stops operating 3 If normal operation is not possible a code appears on the remote controller LCD display Refer to the Table of Self Diagnostic...

Страница 84: ...panel connector at one of the indoor units in the group is not connected correctly DC fan trouble at one of the indoor units in the group Indoor outdoor unit type mismatch Remote controller is not co...

Страница 85: ...switch on the outdoor unit PCB Automatic address setting from the outdoor unit CAFP SPAFP DSAFP type Case 1 If the power can be turned ON separately for the indoor and outdoor units in each system th...

Страница 86: ...eously and the alarm contents are displayed at the remote controller 4 After 1 system is completed be sure to press the automatic address setting button black at the other outdoor units to complete au...

Страница 87: ...ntroller timer time button and button simultaneously Hold for 4 seconds or longer 2 Next press the button Automatic address setting is performed in sequence for all outdoor units from No 1 to No 30 Wh...

Страница 88: ...ic address Setting at shipment 0 1 If outdoor unit is No 1 0 setting Both OFF Both OFF Both OFF 10s digit ON 20s digit ON 10s digit and 20s digit ON 1 setting 2 setting 1 setting 1 setting 0 setting 2...

Страница 89: ...the button again to return to the normal remote controller mode 10 22 4 Indicating marking the indoor and outdoor unit combination number Indicate mark the number after automatic address setting is c...

Страница 90: ...inter unit control wiring connector terminal If AC 220 240 V is accidentally applied the indoor or outdoor unit control PCB fuse 0 5 A for both indoor and outdoor units will blow in order to protect...

Страница 91: ...the indoor unit YES NO YES NO YES NO See 10 26 3 4 See 10 26 3 See 10 13 See 10 25 See 10 11 See 10 26 1 Check the combination wiring of indoor and outdoor units Is system single type 1 indoor unit is...

Страница 92: ...panel connector at one of the indoor units in the group is not connected correctly DC fan trouble at one of the indoor units in the group Indoor outdoor unit type mismatch Remote controller is not co...

Страница 93: ...ote controller crossover wiring for group control 10 26 Automatic Address Setting 10 26 1 Basic wiring diagram Link wiring A terminal plug black is attached to each of the outdoor unit control PCBs At...

Страница 94: ...tdoor unit is No 1 0 setting Both OFF Both OFF Both OFF 10s digit ON 20s digit ON 10s digit and 20s digit ON 1 setting 2 setting 1 setting 1 setting 0 setting 2 If outdoor unit is No 2 11 If outdoor u...

Страница 95: ...and outdoor units in each system The compressors must be run in order to automatically set the indoor unit addresses Therefore perform this step after completing the refrigerant tubing work 1 Turn ON...

Страница 96: ...2 Indoor 1 2 2 These numbers will be needed for maintenance Be sure to indicate them 10 26 5 Setting a wired remote controller as a sub remote controller Change the remote controller address connecte...

Страница 97: ...ver Be sure to press the ACL ALL CLEAR button after replacing the batteries Fig 10 29 Fig 10 30 To remove the remote controller pull it towards you Precautions for remote controller installation Befor...

Страница 98: ...ipment to recover the refrigerant 2 Press and hold the Recover refrigerant button on the outdoor unit PCB for 1 second or longer During refrigerant recovery LED 1 blinks and LED 2 is lit Close the liq...

Страница 99: ...Unit on the next page twist the wires together and use a cable fastener to fasten them leaving a length of wiring that is long enough to permit removal of the adjustable corner cap Fig 11 3 5 Install...

Страница 100: ...mote control unit Remote control holder Parts Q ty Parts Q ty AAA alkaline battery Receiver unit Tapping screw 4 16 Clamp No No 2 2 1 1 2PWHT CN001 WHT BLK Indoor unit Receiver PCB Remote controller T...

Страница 101: ...area of at least 0 5mm2 to 2mm2 The maximum total length of crossover cables must be no longer than 200m Ground Ground Ground Ground Fig 11 6 Fig 11 5 1 To assign the wired remote controller as the su...

Страница 102: ...the fastener that holds the louver motor wiring Fig 11 9 5 Reattach the side panel 6 Route the lead wire from the receiver unit along the louver motor wiring and other wiring and fas ten them with a...

Страница 103: ...when wiring the remote controller The remote con troller will be damaged if high voltage such as 220 240 VAC is applied The wireless receiver unit components cannot be used for more than 1 indoor unit...

Страница 104: ...main or sub unit can operate with any indoor unit Use field wiring cables with a cross sectional area of at least 0 5mm2 to 2mm2 The maximum total length of crossover cables must be no longer than 20...

Страница 105: ...er to prevent interfer ence from fluorescent lamps leave a minimum of 2 meters between the receiver unit and the fluores cent lamps and install the receiver unit in a loca tion where it can receive th...

Страница 106: ...ottom of the receiver unit Pry open with the screwdriver and remove the lower case Fig 11 23 2 In order to later pass the receiver wiring out through the upper case thin part at the top cen ter use ni...

Страница 107: ...the indoor unit before wiring the receiver unit and be sure not to wire incorrectly The unit will be damaged if high voltage such as 200 VAC is applied 6 Adjust the provided spacers so that they are s...

Страница 108: ...ot to wire incorrectly The unit will be damaged if high voltage such as 220 240 VAC is applied to it Wire of receiver unit field supply Power wire from receiver unit Separate receiver unit Connector I...

Страница 109: ...ts to control 1 indoor unit Using 2 separate receiver units to control a group of multiple indoor units The main and sub receiver units will operate regardless of the indoor unit in which they are ins...

Страница 110: ...hanical strain on the air conditioner do not use this mode except for conducting a test run 3 Select any one of the operation modes HEAT COOL or FAN for the test run The outdoor unit will not start ru...

Страница 111: ...R D 28 Reyrieux BP 131 01601 Tr voux CEDEX France T l 04 74 00 92 92 Fax 04 74 00 42 00 R C S Bourg en Bresse B 759 200 728 04 393 DC INV Tech p 64 110 12 13 04 11 35 AM Page 111...

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