Page 2 - SPECIAL PRECAUTIONS; accidental injury or death.; WARNING; CAUTION
2 IMPORTANT! Please Read Before Starting This air conditioning system meets strict safety and operatingstandards. As the installer or service person, it is an impor-tant part of your job to install or service the system so it oper-ates safely and efficiently. For safe installation and trouble-free o...
Page 3 - Check of Density Limit; The density limit of refrigerant which is used in multi air con-; If there are 2 or more refrigerating systems in a sin-; For the amount of charge in this example:; N O T E
2. The standards for minimum room volume are as follows. (1) No partition (shaded portion) (2) When there is an effective opening with the adja- cent room for ventilation of leaking refrigerant gas(opening without a door, or an opening 0.15% orlarger than the respective floor spaces at the topor bot...
Page 4 - Item; Be sure to recharge the refrigerant only in liquid form.; defects of the unit.; Different tools required; Material; Precautions for Installation Using New Refrigerant; Care regarding tubing
4 R407C tools Item compatible Remarkswith R410A? Manifold gauge Yes No Types of refrigerant, refrigerating machine oil, and pressure gauge are different. Charge hose Yes No To resist higher pressure, material must be changed. Vacuum pump Yes Yes Use a conventional vacuum pump if it is equippedwith a...
Page 5 - Confi
5 3-2. Use R410A exclusive cylinder only. When charging with a refrigerant cylinder, use anelectronic scale for charging refrigerant. In thiscase, if the volume of refrigerant in the cylinderbecomes less than 20% of the fully-chargedamount, the composition of the refrigerant startsto change. Thus, d...
Page 6 - CONTENTS
6 Concealed-Duct Type (U Type) . . . . . . . . . . . . . . 513-22. Required Minimum Space for Installation and Service 3-23. Suspending the Indoor Unit3-24. Installing the Drain Piping3-25. Checking the Drainage3-26. Increasing the Fan Speed 4. HOW TO INSTALL THE OUTDOOR UNIT . . . . . 56 4-1. Insta...
Page 7 - REFRIGERANT CHARGE
7 <RCS-BH80UA.WL> 7-12. Separate Type Signal Receiving Unit Installation7-13. Electrical Wiring7-14. Test Run Switch7-15. Misoperation Alarm Indicators7-16. Basic Wiring Diagram7-17. Wiring System Diagram for Group Control7-18. Wiring System Diagram for Multiple Remote Controllers <RCS-SH1U...
Page 13 - Single type; Single; Indoor unit type; Maximum length
13 1-5. Tubing Size Single type Refrigerant tubing between the indoor and outdoor unitsshould be kept as short as possible. The length of the refrigerant tubes between the indoorand outdoor units are limited by the elevation differencebetween the 2 units. During tubing work, try to make boththe tubi...
Page 14 - Gas tube; Amount of additional charge per 1 ft.; Table 1-11 List of Connection Tube Sizes
14 Limit of elevation difference between the 2 units No additional charge of compressor oil is necessary.* 1 If total tubing length becomes 100 to 165 ft., charge additional refrigerant by 0.43 oz./ft. Models C(H)2672R C(H)3072RC(H)3672R C(H)4272R Tubing Data Tubing size Liquid tube in. (mm) 3/8 (9....
Page 15 - Total amount of refrigerant
15 CAUTION CAUTION WARNING 1. This unit requires no additional refrig- erant charge up to 100 ft. tubing length.In case of more than 100 ft., additionalrefrigerant charge is required. Refer toTable 1-11. 2. In case of multi type installation, indoor units should be installed withinthe same room. If ...
Page 16 - SELECTING THE INSTALLATION SITE; N OT E; Side view
16 2. SELECTING THE INSTALLATION SITE 2-1. Indoor Unit AVOID: areas where leakage of flammable gas may be expected. places where large amounts of oil mist exist. direct sunlight. locations near inverter lamps which may affect the performance of the unit. locations near heat sources which may affect ...
Page 17 - Installation space; Distance between obstructions and the unit air inlet; Heat source; Installation requirements; Inlet side C; Air direction chamber
2-2. Outdoor Unit AVOID: heat sources, exhaust fans, etc. (Fig. 2-1) damp, humid or uneven locations DO: choose a place as cool as possible. choose a place that is well ventilated and outsideair temperature does not exceed maximum 115°Fconstantly. allow enough room around the unit for air intake/exh...
Page 21 - Required space around outdoor unit
21 Reference diagram for air-discharge chamber (field supply) C(H)2672R / 3072R / 3672R / 4272R with STK-DRV80U & DRE140A Required space around outdoor unit If the air discharge chamber is used, the space shown below must be secured around the outdoor unit. If the unit is used without the requir...
Page 23 - Dimensions of outdoor unit with snow-proof vents (field supply)
23 11-29/32 28-13/16 Wind direction Wind direction Wind direction Wind direction Wind direction Wind direction 48-7/16 47-19/37 37 24-7/8 15-15/16 14-31/32 13/32 19/32 25/32 25/32 30-3/32 25-13/32 7-1/16 2672R / 3072R / 3672R unit with STK-BDRE80A 11-29/32 16-3/4 15-15/16 14-31/32 13/32 19/32 25/32 ...
Page 24 - Reference diagram for snow-proof vents – 1; Top is blocked by an obstacle:; Outdoor unit
Reference diagram for snow-proof vents – 1 Space requirements for setting – (1) C(H)2672R / 3072R / 3672R / 4272R with STK-BDRE80A & STK-BDR140U Min. I Min. I Min. M Min. N Min. H Min. J (1) Single-unit installation (2) Multiple-unit installation (2 or more units) [Obstacle to the front of unit]...
Page 25 - Reference diagram for snow-proof vents – 2; tallation in front-rear row; tdoor
25 Reference diagram for snow-proof vents – 2 Space requirements for setting – (2) C(H)2672R / 3072R / 3672R / 4272R with STK-BDRE80A & STK-BDR140U Mi n . 11-1 3 / 3 6 Mi n . 11-1 3 /16 Mi n . 3 9- 3 / 8 Mi n . 7-7/ 8 Mi n . 59-1/16 Mi n . 7 8 - 3 /4 0 Mi n . 11-1 3 /16 Mi n . 3 9- 3 / 8 Mi n . ...
Page 26 - HOW TO INSTALL THE INDOOR UNIT; Ty; Concrete; Len; le
X 26 3. HOW TO INSTALL THE INDOOR UNIT 4-Way Air Discharge Semi-Concealed Type (X Type) 3-1. Suspending the Indoor Unit This unit uses a drain pump. Use a carpenter’s level to check that the unit is level. 3-2. Preparation for Suspending (1) Fix the suspension bolts securely in the ceiling using the...
Page 27 - -3. Placing the Unit Inside the Ceiling; Full-scale installation
27 X 3-3. Placing the Unit Inside the Ceiling (1) When placing the unit inside the ceiling, determine the pitch of the suspension bolts using the supplied full-scale installation diagram. (Fig. 3-4) The size of the opening for the indoor unit can be confirmed by attaching the full-scale installation...
Page 28 - Tighten the hose clamps so; Air bleeder
X 28 3-4. Installing the Drain Piping (1) Prepare standard hard PVC pipe for the drain and use the supplied drain hose and hose band to pre- vent water leaks. The PVC pipe must be purchased separately. The transparent part allows you to check drainage. (Fig. 3-6) (2) After checking the drainage, wra...
Page 30 - afety cord
X 30 Ceiling Panel 3-6. Before Installing the Ceiling Panel (1) Remove the air-intake grille and air filter from the ceiling panel. (Figs. 3-13 and 3-14) (a) Remove the 2 screws on the latch of the air- intake grille. (Fig. 3-13) (b) Press on the 2 latches of the air-intake grille with your thumbs i...
Page 32 - When installing in a pre-
X 32 3-9. Duct for Fresh Air There is a duct connection part on side of the indoor unit. (Fig. 3-16) An optional air-intake plenum (including duct connection box and flange) can be attached to the indoor unit. (1) Accessories Check that the following parts are in the box when unpacking. (2) Installa...
Page 34 - Also avoid areas where electri-; Set screws for transportation only; In case of left-rear or right-rear tubing; Plastic cover; OUTSIDE; Wall
34 K Wall-Mounted Type (K Type) 3-10. Removing the Wall Fixture from the Unit Remove and discard the set screws and take off the rear panel. (Fig. 3-19) Tubing can be extended in 3 directions as shown in Fig. 3-20. Select the direction that provides the shortest run to the outside unit. 3-11. Select...
Page 35 - Avoid any area where electrical; Tape
35 K One hole is required for the air conditioner tubing, and may be either on the left or right side. (Also see section 3-14. Preparing the Indoor Side Tubing.) (1) Tape the full-scale installation diagram on the wall at the location selected. Make sure the unit is horizontal using a level or tape ...
Page 37 - -12. Installing the Rear Panel on the Wall; Wall fixture
37 K 3-12. Installing the Rear Panel on the Wall Be sure to confirm that the wall is strong enough to suspend the unit. See either Item a) or b) below depending on the wall type. a) If Wooden Wall (1) Attach the rear panel to the wall with the 10 screws provid- ed. (Fig. 3-34) If you are not able to...
Page 38 - b) If the Wall is Brick, Concrete or Similar; wall fixture
38 K Confirm that the wall is strong enough to support the unit. a) If Wooden Wall (1) Attach the wall fixture to the wall with the 9 screws provided. (Fig. 3-38) If you are not able to line up the holes in the wall fixture with the beam locations marked on the wall, use rawl plugs or toggle bolts t...
Page 39 - take
39 K 3-13. Remove the Grille to Install the Indoor Unit Basically, these models can be installed and wired without removing the grille. If access to any internal part is needed, follow the steps given below: How to remove the grille (1) Set the 2 flaps in the horizontal position. (2) Unscrew the 3 s...
Page 40 - How to Remove the Grille; When replacing the grille, be careful not to crush the
40 K How to Remove the Grille (1) Remove the plastic cover. (Fig. 3-42) (2) Remove the clamp for the wiring connector. (Fig. 3-43) (3) Disconnect the 2 wiring connectors. (Fig. 3-44) (4) Set the flap in the horizontal position. (Fig. 3-45) (5) Remove the 3 screws. (Fig. 3-45) (6) Remove the grille. ...
Page 41 - Frame; Tab; Mounting slot
41 K 3-14. Preparing the Indoor Side Tubing Arrangement of tubing by directions (a) Right tubing The corner of the right frame needs to be cut by a hacksaw or the like. (Fig. 3-46) (b) Right-rear or left-rear tubing In this case, the corner of the frame need not be cut. To mount the indoor unit on t...
Page 43 - How to remove the cover plate; To access the terminal plate inside the indoor unit,; Wiring
43 K 3-16. Wiring Instructions for Inter-Unit Connections (1) Insert the inter-unit wiring (according to local electrical codes) into the through-the-wall PVC pipe. Run the wiring toward the indoor side allowing approx. 10 inches to extend from the wall face. (Fig. 3-57) (2) Route the inter-unit wir...
Page 44 - Never fix the wiring by any; (3) Secure the conduit connector to the chassis with a
Wall Plasticcover Rearpanel Wiring 5" Wall Wall fixture Connector Wiring 5" 44 K (1) Insert the inter-unit wiring (according to local codes) into the through-the-wall PVC pipe. Run the wiring toward the indoor side allowing approx. 5" to extend from the wall face. (Figs. 3-59a and 3-59b)...
Page 45 - Refrigerant tubing
K (1) Shape the refrigerant tubing so that it can easily go into the wall hole. (Fig. 3-62) CAUTION If using a stepladder, be careful to keep your balance and not fall off. To prevent the unit from damage and avoid personal injury, ask for someone’s help when feeding the tubing through the hole beca...
Page 46 - Do not supply power to the unit; Slant
46 K 3-17. Shaping the Tubing (1) Shape the refrigerant tubing so that it can easily go into the hole. (Fig. 3-69) (2) Push the wiring, refrigerant tubing and drain hose through the hole in the wall. Adjust the indoor unit so it is securely seated on the wall fixture. (3) Carefully bend the tubing (...
Page 48 - unit
48 T (5) Before suspending the indoor unit, remove the 2 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. 3-78. Then remove both side panels sliding them along the unit toward the front after removing the two screws ...
Page 50 - Check local electrical codes; t thi; Good
50 T 3-20. Duct for Fresh Air There is a duct connection port (knock-out hole) at the right-rear on the panel top of the indoor unit for drawing in fresh air. If it is necessary to draw in fresh air, remove the cover by knocking it out and connect the duct to the indoor unit through the connection p...
Page 51 - Installation and Service; This air conditioner is usually installed above the; Type; holes; Dimension; L M
51 U Concealed-Duct Type (U Type) 3-22. Required Minimum Space for Installation and Service This air conditioner is usually installed above 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 installati...
Page 53 - Air outlet duct
53 U Fig. 3-97 shows an example of installation. 3-24. Installing the Drain Piping (1) Prepare standard hard PVC pipe for the drain and use the supplied hose band to prevent water leaks. The PVC pipe must be purchased separately. When doing this, leave a gap between the drain socket of the unit and ...
Page 54 - Be careful since the fan will start; Do not use long screws as they
54 U CAUTION Do not install an air bleeder tube as this may causewater to spray from the drain pipe outlet. (Fig. 3-100) If it is necessary to increase the height of the drainpipe, the section directly after the connection portcan be raised a maximum of 19-11/16 in. Do not raise it any higher than 1...
Page 55 - HT : Using the booster cable
55 U 3-26. 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 may be solved by increasing the fan speed using the following procedure: (1) Remove 4 screws on the electr...
Page 56 - HOW TO INSTALL THE OUTDOOR UNIT; Drai
56 4. HOW TO INSTALL THE OUTDOOR UNIT 4-1. Installing the Outdoor Unit Use concrete or a similar material to create the base, andensure good drainage. Ordinarily, ensure a base height of 2 in. or more. If a drainpipe is used, or for use in cold-weather regions, ensure aheight of 6 in. or more at the...
Page 57 - ELECTRICAL WIRING; Outdoor Unit
57 5. ELECTRICAL WIRING 5-1. General Precautions on Wiring (1) Before wiring, confirm the rated voltage of the unit as shown on its nameplate, then carry out the wiring closely following the wiring diagram. (2) Provide a power outlet to be used exclusively for each unit, and a power supply disconnec...
Page 58 - K Ty; pp; us
58 5-3. Wiring System Diagrams Basic wiring diagram for standard control U2 U1 L1 L2 U1 U2 1 2 G 2 1 WHT Remote co n troller D A I n door un it B L1L2 Gro un di ng li n e BLK 2 1 I n ter- un it power li n e 20 8 / 2 3 0 V, 60 Hz Power su pply 20 8 / 2 3 0 V, 60Hz Gro un di ng li n e C Gro un d O u t...
Page 59 - wiring is tightly connected.
59 WARNING Loose wiring may cause the terminal to overheat or resultin unit malfunction. A fire hazard may also exist. Therefore, ensure that all wiring is tightly connected. When connecting each power wire to the correspond- ing terminal, follow the instructions on “How to connect wiring to the ter...
Page 60 - HOW TO INSTALL THE WIRED REMOTE CONTROLLER; pacer
60 RC (WD) 6-1. Installation Site Selection Install the remote controller at a height of between 3–5 ft. above the floor. Do not install the remote controller in a place where it will be exposed to direct sunlight or near a window or other place where it will be exposed to the outside air. Be sure t...
Page 61 - RC; -2. Wired Remote Controller Installation
61 RC (WD) (1) When you open the decorative cover, you will see two gaps under the remote controller. Insert a coin into these gaps and pry off the back case. (Fig. 6-4) (2) Attach the back case with the 2 small screws provided. Using a screwdriver, push open the cut- outs on the back case. These ho...
Page 62 - Diagram of outer dimensions; hielded wire
62 RC (WD) 6-3. Basic Wiring Diagram Use shielded wires for inter-unit control wiring and ground the shield on both sides. (Fig. 6-5) Otherwise misoperation because of noise may occur. Wiring procedure Install the wiring according to the above wiring diagram. Address setting is automatically execute...
Page 64 - Remote controller
64 RC (WD) 6-5. Wiring System Diagram for Multiple Remote Controllers When Installing Multiple Remote Controllers This multiple remote controller system is used for operating the unit(s) at different positions. (A maximum of 2 remote controllers can be installed.) Setting method To execute this cont...
Page 65 - (1) Contents of remote controller switch alarm display; Co; sp; Po
65 RC (WD) 6-7. Trouble Diagnostics (1) Contents of remote controller switch alarm display Remote co n troller i s detecti ng error s i gn al from i n door un it E01 E02 E10 E11 E14 E0 3 E0 8 E09 E04 E05 E06 E07 E15 E16 E20 E17 E1 8 E 3 1 L01 L02 L0 3 L04 L07 L0 8 L09 L10 L11 L1 3 I n door un it i s...
Page 67 - (2) LED Indicator Messages on Outdoor Control PCB; Remarks
67 RC (WD) (2) LED Indicator Messages on Outdoor Control PCB Power ON sequence 1. No communication from indoor units in system 2. Communication received from 1 or more indoor units in system 3. Regular communication OK (Capacity and unit quantity match) If it is not possible to advance to 3, repeats...
Page 68 - I M P O R TA N T; HOW TO INSTALL THE WIRELESS REMOTE CONTROLLER
68 RC (WL) Whe n us i ng thi s air co n ditio n er with the wirele ss remote co n troller it may s ometime s be impo ss ible to cha ng e the operatio n mode s while other i n door un it i s r unn i ng . Whe n thi s happe ns , a do u ble beep to n e s o un d s , the (operatio n lamp) li g ht s u p, a...
Page 69 - ss
69 RC (WL) 7-2. Room Tem p erature S en s or S ettin g The room temperat u re s e ns or s are b u ilt i n to the i n door un it a n d the wirele ss remote co n troller. Either of the s e room temperat u re s e ns or s ca n operate. The s y s tem i s s hipped from the factory s et to the i n door un ...
Page 73 - Cau; lam
73 RC (WL) 7-11. Mi s o p eration Alarm Indicator s Alarm i n dicator lamp s o n the i n door un it i n dicate the error ca us e if the air co n ditio n er fail s to operate u po n bei ng s witched o n . The po ss ible alarm i n dica- tio ns are g ive n i n Table 7-1. Fi g . 7-12 s how s the locatio...
Page 76 - UB
76 RC (WL) 7-1 3 . Electrical Wirin g Be s ure to do the wirin g correctly (incorrect wirin g will dama g e the e q ui p ment). Recomme n ded wire diameter a n d allowable le ng th for s i gn al receivi ng un it wiri ng a n d it s bra n ch wiri ng : AWG #1 8 , MAX 1, 3 00 ft. 1. Peel away 9/16 i n ....
Page 77 - nn
7-15. Mi s o p eration Alarm Indicator s A bli n ki ng lamp for other tha n the s i gn al receivi ng un it filter s how s that a problem ha s occ u rred i n the un it, s o make a n i ns pectio n . (Refer to s ervici ng i n formatio n i n the s ervice ma nu al, etc.) Al s o, if wired remote co n trol...
Page 81 - Wireless remote controller transmitter; Check the “Check Items Before the Test Run.”; Fully open the service valves on the gas-tube and liquid-tube sides.
81 RC (WL) Sliding switch 1 Wireless remote controller transmitter Verify that sliding switch 1 is in the “K” position. <For 3072R, 3672R> S: Flap model (4-direction, ceiling suspended)K: Swing-only model (wall-mounted), settings completedN: No-flap model (built-in) S K N Verify that sliding s...
Page 82 - Face the remote controller toward the receiver (indoor unit).; Using the controller; Temperature control is not possible during the test run.; Receiver; Controller
82 RC (WL) 7-21. Preparing for the Test Run 7-21-1. Changing the room temperature sensor 7-21-2. Using the remote controller 7-21-3. Test run Room temperature sensors are installed inside the indoor unit and the wireless remote controller. Either room temperature sensor can be used. Face the remote ...
Page 85 - SC; TALL THE
SC 85 8 . HOW TO IN S TALL THE S Y S TEM CONTROLLER (OPTIONAL PART) Fi g . 8 -1 S y s tem co n troller S witch box (with cover) M4 × 1- 3 /16 i n . S crew s (2) Flat-top S crew Back ca s e Gap Coi n Gap Fi g . 8 -2 Do not s u pp ly p ower to the unit or try to o p erate it until the tu b in g and wi...
Page 86 - ide of
SC 86 8 -2. Electrical Wirin g B1 I n door un it PCB CRV(CN91: WHT) 2P termi n al ba s e I n door un it S y s tem co n troller Acce ss ary co nn ector Wire joi n t co nn ectio n B2 B 3 B4 B5 B6 U1 U2 How to connect electrical wirin g (1) Co nn ect B1, B2 to i n door PCB CRV co nn ector us i ng acce ...
Page 87 - ON
87 SC 8 - 3 . Addre ss S witch S ettin g 1 ON Main/ s u b s election s witch OFF: S y s tem co n troller operate s a s mai n co n troller. ON: S y s tem co n troller operate s a s su b-co n troller. S W1 ALL/ZONE mode s election s witch ALL mode:All i n door un it s ca n be co n trolled by s y s tem...
Page 90 - Ce
SC 90 8 -5. How to Perform Zone Re g i s tration To operate the s y s tem co n troller properly, zo n e re g i s tratio n i s req u ired after fi n i s hi ng the te s t r un (a n d after s etti ng all i n door un it addre ss e s ) us i ng o n e of the followi ng method s . (a) Zo n e re g i s tratio...
Page 92 - nu
SC 92 ( b ) Zone re g i s tration u s in g the s y s tem controller ( S HA-KC64UG) I n thi s ca s e, yo u s et all ce n tral addre ss e s by the s y s tem co n troller at o n ce ma nu ally. (1) Pre ss the a n d ZONE b u tto ns at the s ame time for more tha n 4 s eco n d s . a n d CODE No. C1 will f...
Page 96 - witch; t Run
SC 96 8 -6. Connection with Other E q ui p ment ON/OFF t u p n i l ati g i D Alarm O u tp u t commo n CPEV AWG#16 ALL ON (+) CX TX ALL OFF (+) I n p u t commo n COM +24 CPEV AWG#16 e m a N s l a n i mr et t u pt u o/t u p n i l ati g i D met i t u pt u o/t u p n I t u pt u o s u t at S t u p n i l o...
Page 97 - HOW TO PROCESS TUBING; Use of the Flaring Method; Deburring; Flare tool
97 9. HOW TO PROCESS TUBING The liquid tubing side is connected by a flare nut, and the gas tubing side is connected by brazing. 9-1. Connecting the Refrigerant Tubing Use of the Flaring Method Many conventional split system air conditioners employ the flaring method to connect refrigerant tubes whi...
Page 98 - Caution Before Connecting Tubes Tightly; entering the tubes before they are used.; Cautions During Brazing
98 Fig. 9-7 When removing the flare nuts from the tubingconnections, or when tightening them afterconnecting the tubing, be sure to use 2 monkeywrenches or spanners as shown. (Fig. 9-6) If the flare nuts are over-tightened, the flare maybe damaged, which could result in refrigerantleakage and cause ...
Page 99 - Precautions for Packed Valve Operation; Valve stem cap tightening torque:; Tubing Insulation; * For gas tubing, the insulation material must be heat; Taping the flare nuts; Seal; tubes arranged together; Charging port; Packed valve
99 Fig. 9-10 Fig. 9-9 Fig. 9-8 Fig. 9-11 Do not use a spanner to tighten the valve stem caps.Doing so may damage the valves. Depending on the installation conditions, applyingexcessive torque may cause the nuts to crack. Precautions for Packed Valve Operation If the packed valve is left for a long t...
Page 101 - Vacuum pump; ADDITIONAL REFRIGERANT CHARGE; Manifold gauge
OutletInlet Vacuum pump Manifold valve Pressuregauge Lo Hi Charge hose Outdoor unit Liquidtube Gastube Nitrogen gas cylinder(In vertical standingposition) Close Close Open Cylinder valve C Fig. 10-1 Fig. 10-2 Fig. 10-3 10. LEAK TEST, EVACUATION AND ADDITIONAL REFRIGERANT CHARGE Perform an air-tightn...
Page 103 - To avoid gas from leaking
C Fig. 10-5 Fig. 10-6 10-3. Charging Additional Refrigerant Charging additional refrigerant (calculated from the liquid tube length as shown on page 14, Amount of additional refrigerant charge) using the liquid tube service valve. (Fig. 10-5) Use a balance to measure the refrigerant accurately. If t...
Page 104 - Liq
104 11. TEST RUN 11-1. Preparing for Test Run Before attempting to start the air conditioner,check the following: (1) All loose matter is removed from the cabinet especially steel filings, bits of wire, and clips. (2) The control wiring is correctly connected and all electrical connections are tight...
Page 106 - Indoor unit control PCB; Fuse
106 11-4. Items to Check Before the Test Run (1) Turn the breaker ON at least 12 hours in advance in order to energize the crank case heater. (2) Fully open the closed valves on the liquid tube and gas tube sides. 11-5. Test Run Using the Remote Controller (1) Press and hold the remote controller bu...
Page 110 - Outdoor unit control PCB; System address rotary switch; tem addre; 1-8-4. Automatic address setting using the remote controller
11-8-3. Setting the outdoor unit system addresses For basic wiring diagram 2 (Set the system addresses: 1, 2, 3...) ON 1 2 0 System address rotary switch(Set to “0” at time of shipment) System address rotary switch System address DIP switch OFF ON 10s 20s Outdoor unit control PCB System address rota...
