Page 2 - SAFETY PRECAUTIONS; Warning
• Before doing repair work, please read the " SAFETY PRECAUTIONS" carefully and fully understand them. • The precautionary items here are divided into " Warning" and " Caution" items. Items in particular which may cause death or serious injury to the service personnel if the ...
Page 4 - Table of Contents
Table of Contents SAFETY PRECAUTIONS TABLE OF CONTENTS 1. OPERATING RANGE 2. SPECIFICATIONS 2-1. Unit Specifications 2-2. Major Component Specifications 2-3. Other Component Specifications 3. DIMENSIONAL DATA 4. REFRIGERANT FLOW DIAGRAM 4-1. Refrigerant Flow Diagram 5. PERFORMANCE DATA 5-1. Temperat...
Page 5 - CHECKING ELECTRICAL COMPONENTS; Measurement of Insulation Resistance; SPECIAL PRECAUTIONS WHEN SERVICING UNIT; Page
9. CHECKING ELECTRICAL COMPONENTS 9-1. Measurement of Insulation Resistance 9-2. Checking Continuity of Fuse on PCB Ass'y 10. REFRIGERANT R410A: SPECIAL PRECAUTIONS WHEN SERVICING UNIT 10-1. Characteristics of New Refrigerant R410A10-2. Checklist before Servicing10-3. Tools Specifically for R410A10-...
Page 6 - Temperature; Cooling
95 °F DB / 71 °F WB 67 °F DB / 57 °F WB 1. OPERATING RANGE Maximum Minimum 115 °F DB 0 °F DB Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp. Cooling 6
Page 7 - eight
2. SPECIFICATIONS 2-1. Unit Specifications Indoor Unit CS-KS30NKU Outdoor Unit CU-KS30NKUA < 230V > DATA SUBJECT TO CHANGE WITHOUT NOTICE. Remarks: Rating conditions are:Cooling: Indoor air temperature 80 °F DB / 67 °F WB Outdoor air temperature 95 °F DB / 75 °F WB Vertical dB-AdB-A Indoor : H...
Page 11 - Indoor Unit; Flap Motor
Indoor Unit CS-KS30NKU 24BYJ48-1256 Flap Motor Type Stepping Motor Rating Model Coil Resistance Ohm (Ambient Temp. 77 °F (25 °C)) Each Pair of Terminal : 200 +/- 7% DC 12V Aluminum Plate Fin / Copper Tube 1 and 2 19.5 4.55 (0.423) Face Area Coil Rows Fins Per inch Heat Exchanger Coil ft 2 (m 2 ) DAT...
Page 13 - Outdoor Unit; External Finish; Fan
Outdoor Unit CU-KS30NKUA 2-2-2. Outdoor Unit P.C.Board Circuit Fuse Controls Part No. - 250V 25A POW-CH3082-B2 Noise Filer P.C.B Microprocessor 400V 3.15A CR-C3082-F Control P.C.B - - HIC-CH3072R-C1 H.I.C.Board DATA SUBJECT TO CHANGE WITHOUT NOTICE. Pints (cc) - Micro F VAC External Finish Acrylic b...
Page 15 - • Indoor air temp sensor
2-3. Other Component Specifications Indoor Unit CS-KS30NKU CS-KS36NKU Outdoor Unit CU-KS30NKUA CU-KS36NKUA 0 32 50 68 86 104 122 140 158 176 194 (0) (10) (20) (30) (40) (50) (60) (70) (80) (90) 40 60 80 100 120 140 160 180 200 20 50 1 0 2 3 4 5 6 7 8 9 10 59 68 77 86 95 104 (10) (15) (20) (25) (30) ...
Page 18 - Indoor unit; REFRIGERANT FLOW DIAGRAM
Wide tubeservicevalve Wide tube Narrowtubeservicevalve Narrow tube Heat e xchanger Heat e xchanger Cooling cycle Indoor unit Outdoor unit Electric expansion valve Strainer M O.D5/8" (15.88 mm) O.D. 3/8" (9.52 mm) 4. REFRIGERANT FLOW DIAGRAM 4-1. Refrigerant Flow Diagram Indoor Unit CS-KS30NK...
Page 19 - NOTE; (3) Indoor discharge air performance chart
5. PERFORMANCE DATA 5-1. Temperature Charts Indoor Unit CS-KS30NKU Outdoor Unit CU-KS30NKUA • Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value. NOTE Cooling Characteristics (RH : 46%, Indoor fan speed : High fan) (60Hz, 230V) (1) ...
Page 21 - CI
1. Rating conditions (#) : Indoor Unit Entering Air Temp. 80 °F (26.7 °C) DB / 67 °F (19.4 °C) WB : Outdoor Ambient Temp. 95 °F (35 °C) DB 2. 3. Above data represents the value when the operation frequency of a compressor is fixed. Above data does not take Freeze Prevention Protection during cooling...
Page 22 - Power supply : 230V Single Phase 60Hz
Outdoor Unit : CU-KS36NKUA Indoor Unit : CS-KS36NKU Power supply : 230V Single Phase 60Hz RATING CAPACITY: 34,000 BTU/h AIR FLOW RATE: 630 CFM INDOOR OUTDOOR ENT. TEMP. o F ( o C) AMBIENT TEMP. o F ( o C) WB DB 65 75 85 95 105 115 (18.3) (23.9) (29.4) (35.0) (40.6) (46.1) TC 27,450 28,140 28,840 29,...
Page 25 - : Axis air velocity 0
Horizontal distance (ft.) Axis air velocity (ft./sec.) V e rtical distance (ft.) Room air temp. : 80°F (26.7°C)Fan speed : High Cooling : Flap angle 0 , : Axis air velocity 0 : Flap angle 30 , : Axis air velocity 30 5-4. Air Throw Distance Charts Indoor Unit CS-KS30NKU 0 5 10 15 0 5 10 15 20 25 30 2...
Page 26 - : Axis air velocity 0
Horizontal distance (ft.) Axis air velocity (ft./sec.) Vertical distance (ft.) Room air temp. : 80°F (26.7°C)Fan speed : High Cooling : Flap angle 0 , : Axis air velocity 0 : Flap angle 30 , : Axis air velocity 30 Indoor Unit CS-KS36NKU 0 5 10 15 0 5 10 15 20 25 30 26
Page 32 - HIGH POWER operation from remote controller; Frequency; COOL and DRY modes
HIGH POWER NIGHT SETBACK Lamp colors Timer backup This function acts to raise the power but keeps the AC system in the same operating mode.This function is set with the HIGH POWER button on the remote controller.(It can be set regardless of the temperature and fan speed settings.) HIGH POWER operati...
Page 33 - ; operation; Fig.2 View from front
The noise reducing control is the function used for silent operation of the air conditioner by means of setting the dip switch on the outdoor unit P.C.Board to control the fan and compressor's motor speed. <Operation Sound> <Switching Procedure to Noise Reducing Control> (1) Remove the 3...
Page 34 - Maximum Current Value Change Function; the capacity is reduced.; Description of function
The maximum current value is changed to 14A (for CU-KS30NKUA) or 17A (for CU-KS36NKUA) to prevent power breaker tripping. (It is set to 24A when the unit is delivered from the factory.) <Maximum Current Value Change Procedure> (1) Remove the inspection panel. Refer to Fig. 2 in " Noise Red...
Page 35 - Indoor heat e
Compressor discharge temperature control Freeze prevention During COOL or DRY operation, freezing is detected and operation is stopped when the temperature of the indoor heat exchanger matches the conditions below.1. Freeze-prevention operation is engaged when the temperature of the indoor heat exch...
Page 36 - -1. Precautions before Performing Inspection or Repair; : The failure mode is stored in memory even when the power is not ON.; PROCEDURE; Step 1: Press and hold the remote controller QUIET button and 1 HR
8. TROUBLESHOOTING (BEFORE CALLING FOR SERVICE) 8-1. Precautions before Performing Inspection or Repair NOTE After checking the self-diagnostics monitor, turn the power OFF before starting inspection or repair. High-capacity electrolytic capacitors are used inside the outdoor unit controller (invert...
Page 37 - INDOOR UNIT
Since the indications cover various units, the corresponding parts listed below may not be present in some models. (1) OPERATION lamp (2) TIMER lamp (3) OPERATION TIMER ON/OFF INDOOR UNIT (1) Self-diagnostics Lamps INDICATION ON INDOOR UNIT .... OFF DIAGNOSIS CONTENTS POSSIBLE MALFUNCTION ROOM TEMP....
Page 38 - Normal
(2) If the self-diagnostics function fails to operate Check the indoor unit. Is the fuse blown? Replace the controller. Replace the circuit board or the fuse. No indicators illuminate and the indoor fan does not rotate.Check the power voltage. Normal Blown 38
Page 39 - -3. Checking the Indoor and Outdoor Units; operation by 60 times faster than normal).; Control
8-3. Checking the Indoor and Outdoor Units (1) Checking the indoor unit (2) Checking the outdoor unit Using the TEST/T-RUN terminals Control No. Check items (unit operation) T-RUN : Test run (compressor and fan motor turn ON). TEST/MV : Compresses time to 1/60th (accelerates operation by 60 times fa...
Page 40 - (3) Serial Communication Error Identification Procedure; Lamp; CAUTION; < Check Items before Troubleshooting Serial Communication Start >
(3) Serial Communication Error Identification Procedure Refer to "Method of Self-Diagnostics" for the self-diagnostics procedure. (3-1) Alarm Code : E05 < Before the Operation > If the lamps on the main body show the following conditions after the completion of self-diagnostics, a comm...
Page 43 - Measurement location
[Trouble symptom 3] Motor rotates for some time (several seconds), but then quickly stops, when the indoor unit operates. (There is trouble in the system that provides feedback of motor rotation speed from the motor to the indoor unit controller.) [Trouble symptom 4] Fan motor rotation speed does no...
Page 45 - -5. Noise Malfunction and Electromagnetic Interference
8-5. Noise Malfunction and Electromagnetic Interference An inverter A/C operates using pulse signal control and high frequencies. Therefore, it is susceptible to the effects of external noise, and is likely to cause electromagnetic interference with nearby wireless devices. A noise filter is install...
Page 46 - CHECKING ELECTRICAL COMPONENTS; Resistance; Resistance for Electrical Parts
Insulation tester Probe Clip Ground wire Terminal plate Coppertube ormetallic part Clip Insulation tester Probe Fig. 1 Fig. 2 Fig. 3 Fig. 4 Coppertube ormetallic part Clip Insulation tester Probe Clip Insulation tester Probe Metallic part From fan motor,compressor and other parts 9. CHECKING ELECTRI...
Page 47 - Remove the PCB Ass'y from the electrical
Fuse PCB Ass'y Fig. 5 Fig. 6 Fuse 9-2. Checking Continuity of Fuse on PCB Ass'y Remove the PCB Ass'y from the electrical component box. Then pull out the fuse from the PCB Ass'y. (Fig. 5) Check for continuity using a multimeter as shown in Fig. 6. 47
Page 48 - 0-1. Characteristics of New Refrigerant R410A; Less toxic, more chemically stable refrigerant; Thus, always charge the refrigerant while it is in liquid phase.
10. REFRIGERANT R410A: SPECIAL PRECAUTIONS WHEN SERVICING UNIT 10-1. Characteristics of New Refrigerant R410A 10-1-1. What is New Refrigerant R410A? R410A is a new refrigerant that contains two types of pseudo-non-azeotropic refrigerant mixture. Its refrigeration capacity and energy efficiency are a...
Page 49 - Specification A
Tubing precautions Refrigerant R410A is more easily affected by dust or moisture compared with R22, thus be sure to temporarily cover the ends of the tubing with caps or tape prior to installation. Never use 0.0276" (0.7 mm)-thick copper tubing or tubing which is less than 0.0315" (0.8 mm) i...
Page 51 - 0-5. In Case of Compressor Malfunction; compressor as quickly as possible.; Length of tubing
10-5. In Case of Compressor Malfunction CAUTION Should the compressor malfunction, be sure to make the switch to a replacement compressor as quickly as possible. Use only the tools indicated exclusively for R410A. See "10-3. Tools Specifically for R410A." 10-5-1. Procedure for Replacing Comp...
Page 52 - Single valve
Valve Single valve Charge liquid refrigerant with cylinder in up-side-down position. Single valve (with siphon tube) Charge with cylinder in normal position. Liquid Valve Liquid Charging cylinder Open Refrigerant cylinder Liquid NO! CAUTION Never charge a large amount of liquid refrigerant at once t...
Page 53 - carry out repairs, then recharge the refrigerant.
Length of tubing Evacuation time Less than 33 ft. (10 m) More than 10 minutes More than 33 ft. (10 m) More than 15 minutes 10-6. In Case Refrigerant is Leaking CAUTION Never attempt to charge additional refrigerant when refrigerant has been leaking from the unit. Follow the procedure described below...
Page 54 - with the indoor unit.; Charge additional refrigerant in liquid state only.; This will cause the air conditioner to; do not use its existing tubing.; completely new tubing must be used.; out repairs. Only then should you recharge the refrigerant.
10-7. Charging Additional Refrigerant 10-7-1. When Tubes are Extended Observe the proper amount of refrigerant as stated in this service manual or the installation manual that came with the indoor unit. Charge additional refrigerant in liquid state only. 10-8. Retro-Fitting Existing Systems 10-8-1. ...
Page 57 - This air conditioner uses the refrigerant R410A.; Split System Air Conditioner; Indoor Units; Operating Instructions
This air conditioner uses the refrigerant R410A. Split System Air Conditioner Model No. Panasonic Corporation 1006 Kadoma, Kadoma City, Osaka, Japan 85264181220002 Indoor Units CS-KS30NKUCS-KS36NKU Outdoor Units CU-KS30NKUACU-KS36NKUA Operating Instructions Before operating the unit, read these oper...
Page 58 - PRODUCT INFORMATION
2 FEATURES This air conditioner is an inverter type unit that automatically adjusts capability as appropriate. Details on these functions are provided below; refer to these descriptions when using the air conditioner. • Microprocessor Controlled Operation The interior compartment of the remote contr...
Page 59 - INSTALLATION LOCATION; • We recommend that this air conditioner be installed; • Before installation, check that the voltage of the electric; ELECTRICAL REQUIREMENTS; Wiring must be done by a qualified electrician.; SAFETY INSTRUCTIONS; • Read this Instruction Manual carefully before using; NOTICE
3 INSTALLATION LOCATION • We recommend that this air conditioner be installed properly by qualified installation technicians in accordance with the Installation Instructions provided with the unit. • Before installation, check that the voltage of the electric supply in your home or office is the sam...
Page 60 - NAMES OF PARTS; Air Intake; TIMER lamp
4 NAMES OF PARTS This illustration is based on the external view of a standard model.Consequently, the shape may differ from that of the air conditioner which you have selected. This air conditioner consists of an indoor unit and an outdoor unit. You can control the air conditioner with the remote c...
Page 61 - Symbols
5 REMOTE CONTROLLER (DISPLAY) (1) Operation mode MILD DRY .............................. COOL ..................................... FAN ........................................ (2) Fan speed Automatic operation ............... HIGH ..................................... MEDIUM...........................
Page 62 - REMOTE CONTROLLER
6 REMOTE CONTROLLER Transmitter When you press the buttons on the remote controller, the mark appears in the display to transmit the setting changes to the receiver in the air conditioner. Display Information on the operating conditions is displayed while the remote controller is switched on. If the...
Page 64 - USING THE REMOTE CONTROLLER; HOW TO INSTALL BATTERIES; HOW TO USE THE REMOTE CONTROLLER
8 USING THE REMOTE CONTROLLER HOW TO INSTALL BATTERIES 1. Slide the cover in the direction indicated by the arrow and remove it. 2. Install two AAA alkaline batteries. Make sure the batteries point in the direction marked in the battery compartment. 3. Use a thin object such as the tip of a pen to p...
Page 65 - OPERATION WITH THE REMOTE CONTROLLER; Adjusting the Fan Speed; A. Automatic fan speed; Simply set the FAN SPEED selector button to the
9 OPERATION WITH THE REMOTE CONTROLLER 1. Operation 2. Adjusting the Fan Speed A. Automatic fan speed Simply set the FAN SPEED selector button to the position.This automatically sets the best fan speed for the room temperature. B. Manual fan speed If you want to adjust fan speed manually during oper...
Page 66 - Night Setback Mode; Night Setback Mode is used for saving energy.; and
10 4. Night Setback Mode Night Setback Mode is used for saving energy. Press the NIGHT SETBACK button while unit is operating. (except FAN mode)The mark appears in the display. To release the night setback function, press the NIGHT SETBACK button again. Pressing the MODE selector button cancels Nigh...
Page 68 - SPECIAL REMARKS; Clicking sound is heard from the air conditioner; SETTING THE TIMER; How to set the present time; Operation
12 SPECIAL REMARKS How it works? • Once the room temperature reaches the level that was set, the unit’s operation frequency is changed automatically. • During DRY operation, the fan speed automatically runs at lower speed for providing a comfortable breeze. • ‘‘DRY’’ operation is not possible if the...
Page 69 - To cancel a timer program
13 2. How to set the OFF time (Example) To stop the air conditioner at 11:00 am. 3. How to set the ON time (Example) To start operation at 7:10 am. 4. How to set daily ON/OFF repeat timer (Example) To start operation at 7:10 am. and stop the air conditioner at 11:00 am. • The ON/OFF combination time...
Page 70 - Cancellation procedure:; Operation together with the daily ON/OFF; TIPS FOR ENERGY SAVING; Avoid; • Do not block neither the air intake nor the air outlet. It may; Do; B. Setting the airflow manually
14 USING THE 1-HOUR OFF TIMER 1. 1-Hour OFF Timer This function causes the unit to operate for one hour and then stop, regardless of whether the unit is on or off when this button is pressed. The indicator in the display indicates that this function is operating. Setting procedure: Regardless of whe...
Page 71 - When the air conditioner is not running; CARE AND CLEANING; Filter; Cleaning; Protrusions
15 • Use the FLAP button on the remote controller to adjust the position of the flap. If you move the flap by hand, the flap position according to the remote controller and the actual flap position may no longer match. If this should happen, shut off the unit, wait for the flap to close, and then tu...
Page 72 - Cleaning the main unit and Remote Controller; Removing and remounting the front panel; Removing; Washing the front panel with water; Front panel
16 Cleaning the main unit and Remote Controller • Wipe clean using a soft, dry cloth.• To remove stubborn dirt, moisten a cloth in warm water no hotter than 104 °F, wring thoroughly, and then wipe. • The front panel can be removed in order to wash it with water. Removing and remounting the front pan...
Page 74 - SPECIFICATIONS
18 SPECIFICATIONS Model No. Outdoor Unit Indoor Unit CS-KS30NKU CU-KS30NKUA 30,600 [ 10,900 ~ 30,600 ] 55 Single-phase, 208-230 V, 60 Hz 9.00 [ 3.20 ~ 9.00 ] -- --- 35-13/16×37-1/32×13-3/8 (910×940×340) - 49/44/39 -- Heating Capacity OperationSound Unit Dimensions (H×W×D)(Indoor unit : Include panel...
Page 77 - Contents
$/09(08*54+0:054,8;9,9:/,8,-80.,8(4:" >:,84(2+0(3,:,85-9,8<0*,658:" Split System Air Conditioner INSTALLATION INSTRUCTIONS NOTE & Contents Page IMPORTANT!Please Read Before Starting .................................. 2 1. GENERAL .......................................................
Page 78 - SPECIAL PRECAUTIONS; accidental injury or; WARNING
2 IMPORTANT! Please Read Before Starting This air conditioning system meets strict safety and operatingstandards. As the installer or service person, it is an importantpart of your job to install or service the system so it operatessafely and efficiently. For safe installation and trouble-free opera...
Page 79 - fins of the outdoor unit. You may get injured.; N OT E
3 8VHWKHIODUHPHWKRGIRUFRQQHFWLQJWXELQJ $SSO\UHIULJHUDQWOXEULFDQWWRWKHPDWFKLQJVXUIDFHVRI the flare and union tubes before connecting them,then tighten the nut with a torque wrench for a leak-free connection. &KHFNFDUHIXOO\IRUOHDNVEHIRUHVWDUWLQJWKHWHVWUXQ 'RQRWOHDNUHIULJHUDQWZKLOHSLSLQJZRU...
Page 80 - Model
4 1. General This booklet briefly outlines where and how to install theair conditioning system. Please read over the entire setof instructions for the indoor and outdoor units and makesure all accessory parts listed are with the system beforebeginning. 1-1. Tools Required for Installation (not suppl...
Page 81 - -5. Additional Materials Required for Installation; Installation Site Selection; Front View; Table 3
5 1-5. Additional Materials Required for Installation 1. Refrigeration (armored) tape 2. Insulated staples or clamps for connecting wire(See local codes.) 3. Putty 4. Refrigeration lubricant 5. Clamps or saddles to secure refrigerant tubing 2. Installation Site Selection 2-1. Indoor Unit AVOID: dire...
Page 85 - Required space around the outdoor unit
9 Required space around the outdoor unit -:/,=04+6855-+;*:09;9,+:/,96(*,9/5=4),25=3;9:),9,*;8,+(85;4+:/,5;:+558;40:-:/,;40:09;9,+=0:/5;::/,8,7;08,+96(*,(685:,*:0<,+,<0*,3(?(*:0<(:,68,<,4:04.:/,;40:-85356,8(:04. #04.2,;40:049:(22(:054 CAUTION $/,:56(4+)5:/90+,93;9:8,3(0456,4-:/,8,(8,5)9:(...
Page 88 - [Obstacles to the front and rear of unit]
12 04 58358, 04 58358, 04 58358, 04 58358, 04 58358, 04 58358, #04.2,;40:049:(22(:054 )49:(22(:0540965990)2,=0:/:/,3(>03;35;:+558;40:9 9:(*2,954)5:/90+,9 [Installation in front-rear rows] [Obstacles to the front and rear of unit] $/,:56(4+)5:/90+,93;9:8,3(0456,40:/,8:/,5)9:(*2,:5:/,-854:58:/,5)9:...
Page 89 - How to Install the Indoor Unit; -1. Remove the Rear Panel from the Unit; marks on the frame cover and disengage
13 Rear panel Fig. 7c Rear panel Fig. 7b Set screw only for transportation Fig. 6 Rear panel marks Fig. 7a ,-::;)04. "0./::;)04. "0./:8,(8:;)04.8,*533,4+,+ "0./:+5=4=(8+:;)04. ,-:8,(8:;)04. ,-:+5=4=(8+:;)04. Fig. 8 3. How to Install the Indoor Unit 3-1. Remove the Rear Panel from the Uni...
Page 90 - Table 4; (5) Measure the thickness of the wall from the inside; Rawl plug
14 Indoorside Outdoorside Hole should be made at a slight downward slant to theoutdoor side. N OT E Fig. 10 Plastic cover INSIDE OUTSIDE Wall Slightangle PVC pipe (Locally purchased) Fig. 12 PVC pipe (Locally purchased) Cut at slight angle Fig. 11 (4) Using a sabre saw, key hole saw or hole-cutting ...
Page 92 - General precautions on wiring
16 3-5. Shape the Indoor Side Tubing (1) Arrangement of tubing by direction a) Right or left tubing Cut out the corner of the right/left frame with ahacksaw or the like. (Figs. 20 and 21) b) Right-rear or left-rear tubing In this case, the corner of the frame need not becut. (2) To mount the indoor ...
Page 93 - Table 5; N O T E; Wire Size
17 3-7. Wire Size and Length Regulations on wiring diameter differ from locality to locality. For field wiring requirements, please refer to your local elec-trical codes. Carefully observe these regulations when carrying out the installation. Refer to the wiring system diagram (Fig. 23) for the mean...
Page 95 - How to connect wiring to the terminal; pletely using a screwdriver.; For stranded wiring; on the terminal plate.
19 When connecting each power wire to the correspondingterminal, follow the instructions “How to connect wiringto the terminal” and fasten the wire securely tight withthe fixing screw of the terminal plate. How to connect wiring to the terminal a) For Indoor Unit (1) Cut the wire end with a cutting ...
Page 96 - Push; Rear panel
20 3-9. Mounting (1) To install the indoor unit, mount the indoor unit onto the 3 tabs on the upper part of the rear plate. (2) Hold down the air discharge outlet and press the lower part of the indoor unit until it clicks to securelyfasten to the 2 tabs on the lower part of the rearplate. (Fig. 33)...
Page 97 - Switching drain hose and drain cap; (b) Remove the screw fastening the drain hose on
21 Hole in wall Bent part Narrow tube Wide tube Rear panel Fig. 38 Drain cap Drain hose Clamp Fig. 39 Left-side tubing (1) Lead the tubing and drain hose through the wall, allowing sufficient length for connection. Then bendthe tubing using a tube bender to make the attach-ment. (Fig. 38) (2) Switch...
Page 98 - To unmount indoor unit; Press the 2; Risk of Electric Shock
22 To unmount indoor unit Press the 2 marks on the lower part of the indoor unit and unlatch the tabs. Then lift the indoor unit andunmount. (Fig. 42) 3-10. Frame Fastening Method (1) Remove the screw cover on the bottom surface. (Fig. 43) (2) Fasten the frame to the rear panel using the 2 sup- plie...
Page 99 - How to Install the Outdoor Unit; First refer to Section 2. Installation Site Selection.; -1. Wiring Instructions for the Outdoor Unit; (4) Be sure to ground the unit according to your local; Cover B
23 4. How to Install the Outdoor Unit First refer to Section 2. Installation Site Selection. 4-1. Wiring Instructions for the Outdoor Unit Regulations on wire size differ from locality to locality. Forfield wiring requirements, please refer to your local elec-trical codes. Make sure that the install...
Page 100 - Refrigerant Tubing; -2. Flaring Procedure with a Flare Tool; Deburring
24 5. Refrigerant Tubing 5-1. Use of the Flaring Method Many of the conventional split system air conditionersemploy the flaring method to connect refrigerant tubeswhich run between indoor and outdoor units. In thismethod, the copper tubes are flared at each end andconnected with flare nuts. 5-2. Fl...
Page 101 - To fasten the flare nuts, apply specified torque as:; Table 6; (2) Wrap the armoring tape from the bottom of the outdoor; Clamp; Nut
25 5-4. Connecting Tubing between Indoor and Outdoor Units a) Tightly connect the indoor side refrigerant tubing exten-ded from the wall with the outdoor side tubing. (Fig. 52) b) To fasten the flare nuts, apply specified torque as: Table 6 5-5. Insulation of Refrigerant Tubing To prevent heat loss ...
Page 102 - Air Purging with a Vacuum Pump (for Test Run); Required time for evacuation when
26 6. Air Purging Air and moisture remaining in the refrigerant systemhave undesirable effects as indicated below. Therefore,they must be purged completely. pressure in the system rises operating current rises cooling (or heating) efficiency drops moisture in the air may freeze and block capillary t...
Page 104 - How to Test Run the Air Conditioner; a) Press and hold the QUIET button and the 1HR.; I M P O R T A N T
28 How to Test Run the Air Conditioner After turning on the power of the air conditioner, use theremote controller and follow the steps below to conduct thetest run. (1) Set the remote controller in Test Run mode. (Fig. 59a) a) Press and hold the QUIET button and the 1HR. TIMER button. b) Then press...
Page 105 - Pump Down; Pump Down Procedure; (1) Connect the Lo side charging hose of the manifold; Basic Functions of the Service Valves; Action; Wide Tube Service; Table 8
29 Pump Down Pump down means collecting all refrigerant gas in thesystem back into the outdoor unit without losing any ofthe gas. Pump down is used when the unit is to bemoved or before servicing the refrigerant circuit. Pump Down Procedure Be sure to carry out pump down with the unit incooling mode...
Page 106 - Mounting s crew s; Remote Controller Installation Position; In direct sunlight; Table 9; Service Valve Connections
30 ( $,3658(8?*544,*:054 #*8,=04@:;849)?/(4+0.* ) $5-(9:,4:/,-2(8,4;:9(662?96,*0-0,+:587;, (9$()2,(4+0.+ Fig. 60c Fig. 60d CAUTION $587;,=8,4*/ Be sure to tighten the flare nut using the prescribed torque. If the nut is over-tightened, refrigerant leakage may occur. Press Set in place Remote control...
Page 107 - -1. Address Setting of the Remote Controller; (3) Press and hold the remote controller QUIET button
31 8. Address Switch 8-1. Address Setting of the Remote Controller The address can be set in order to prevent interferencebetween remote controllers when 2 indoor units areinstalled near each other. The address is normally set to“A.” To set a different address, it is necessary to changethe address o...
