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 - Page
10. CHECKING ELECTRICAL COMPONENTS 10-1. Measurement of Insulation Resistance10-2. Checking Continuity of Fuse on PCB Ass'y 11. REFRIGERANT R410A: SPECIAL PRECAUTIONS WHEN SERVICING UNIT 11-1. Characteristics of New Refrigerant R410A11-2. Checklist before Servicing11-3. Tools Specifically for R410A1...
Page 7 - Electrical Rating
2. SPECIFICATIONS 2-1. Unit Specifications Indoor Unit CS-KE12NB41 & CZ-18BT1U Outdoor Unit CU-KE12NK1 2-1-1. Vertical dB-AdB-A Indoor : Hi/Me/LoOutdoor : Hi Air FilterCompressorRefrigerant / Amount charged at shipment Ibs (g) Refrigerant Control 12.6 1,260 ( 2.5 to 12.6 )( 250 to 1,260 ) 11,900...
Page 8 - DATA SUBJECT TO CHANGE WITHOUT NOTICE.
Indoor Unit CS-KE12NB41 & CZ-18BT1U Outdoor Unit CU-KE12NK1 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 Heating: Indoor air temperature 70 °F DB Outdoor air temperature 47 °F...
Page 15 - Outdoor Unit
2-2-2. Outdoor Unit Control PCB Control Circuit Fuse Controls Part No. Microprocessor 125V 25A CB-CU-KE12NK1 DATA SUBJECT TO CHANGE WITHOUT NOTICE. Pints (cc) WHT - BLU : BLU - RED : RED - WHT : 77.577.5 77.5 Micro F VAC External Finish Acrylic baked-on enamel finish FV50S ... 0.68 (320) -- Internal...
Page 17 - • Indoor air temp sensor
2-3. Other Component Specifications Indoor Unit CS-KE12NB41 & CZ-18BT1U CS-KE18NB4UW & CZ-18BT1U Outdoor Unit CU-KE12NK1 CU-KE18NKU 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...
Page 18 - Indoor Unit; Center of; AA
3. DIMENSIONAL DATA Indoor Unit CS-KE12NB41 & CZ-18BT1U CS-KE18NB4UW & CZ-18BT1U 6-5/16 6-11/16 1-3/16 (30) 4-19/32 1-25/32 1-25/32 2-3/32 8-15/32 22-5/8 (575) 11-5/32 (283) 3 6 5 Less than 31/32 Less than 31/32 3-5/8 22-5/8 (575) 12-7/8 Suspension bolt pitch Suspension bolt pitch 21-1/32 (5...
Page 21 - Indoor unit; REFRIGERANT FLOW DIAGRAM
Compressor Accumulator Wide tubeservicevalve Wide tube Narrowtubeservicevalve Narrow tube Heat e xchanger Heat e xchanger Muffler Capillary tube for split flow Cooling cycle(Defrosting cycle) Heating cycle Indoor unit Outdoor unit Electric expansion valve Strainer Strainer M Muffler O.D.3/8"(9.5...
Page 23 - (3) Indoor discharge air performance chart; NOTE
Hi Fan Lo Fan Cooling Characteristics (RH : 46%, Indoor fan speed : High fan) (60Hz, 115V) (1) Low pressure performance chart (2) Operating current performance chart (3) Indoor discharge air performance chart Check each performance value in test-run mode. Electrical performance values represent a co...
Page 31 - from the actual heating characteristics.
5-4. Heating Capacity Indoor Unit : CS-KE12NB41 & CZ-18BT1U Outdoor Unit : CU-KE12NK1 Power Supply : 115V Single Phase 60Hz < Heating Capacity > TH : Total Heating Capacity (BTU/h) 1. Rating conditions (#) : Indoor Unit Entering Air Temp. 70 °F (21.1 °C) DB : Outdoor Ambient Temp. 47 °F (8...
Page 33 - Heating
6. ELECTRICAL DATA 6-1. Electrical Characteristics Indoor Unit CS-KE12NB41 & CZ-18BT1U Outdoor Unit CU-KE12NK1 Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor + Compressor Performance at 115V Single-phase 60Hz Rating conditions Running amp. A 0.21 Power input W 18 12.39 1,242 Heating ...
Page 38 - Controller
ACL(Reset)button 1HR.TIMERbutton ON/OFFoperationbutton HIGH POWERbutton Test run mode Self-diagnostic mode Address setting mode Fig. 1 Fig. 2 Fig. 3 Tab ACL button 7. MAINTENANCE 7-1. Address Setting of the Remote Controller The address can be set in order to prevent interference between remote cont...
Page 40 - attempting to disassemble the unit.; WARNING
7-3. Disassembly Procedure 7-3-1. Remove the air intake grill. (1) Slide the 2 latches each to the corresponding arrow direction. (Fig. 1 and Fig. 2) Open downward the air intake grill located on the latch side. (2) Undo the air intake grill drop preventive hook. (Fig. 3) Undo the 2 hinges for the g...
Page 41 - There is no strap on the indicator cover.
NOTE 7-3-3. Remove the ceiling panel. (1) Open the clamp (4 locations) and remove the 2 lead wires from the clamps. (Fig. 6) (2) Remove the 4 screws fixing the corner cover (at 3 locations) and indicator cover (at 1 location). (Fig. 6) (3) Press the center 1 of the cover and remove the cover with th...
Page 50 - Heating operation; Defrosting Sequence; Releasing of defrosting; Reverse-Cycle Defrosting; Defrost detection and release
This function prevents the circuit breaker or fuse from operating to open the circuit. This function works when electrical current has increased due to an increase in the cooling / heating load, or to a decrease in the power supply voltage. In these cases, operation frequency is reduced or operation...
Page 51 - -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 HIGH POWER button and 1
< Clock display > Test run mode Self-diagnostics mode 9. TROUBLESHOOTING (BEFORE CALLING FOR SERVICE) 9-1. 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 ca...
Page 52 - INDOOR UNIT
Since the indications cover various units, the corresponding parts listed below may not be present in some models. (1) Self-diagnostics Lamps (1) DRAIN PUMP FAILURE (2) FS FAILURE (3) CHOKED DRAIN HOSE 8512-5261-99100-1 REMOTE CONTROL receiver OPERATION lamp TIMER lamp OPERATION button HIGH POWER la...
Page 53 - Normal; -3. Checking the Indoor and Outdoor Units; operation by 60 times faster than normal).; Control
(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 9-3. Checking the Indoor and Outdoor Un...
Page 54 - (3) Serial Communication Error Identification Procedure; < 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) Condition: E01 < Before the Operation > If the lamps on the main body show the following conditions after the completion of self-diagnostics, a commun...
Page 57 - 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 58 - DC 14V or more; Normal value
9-4-2. Outdoor Fan Motor This outdoor DC fan motor contains an internal control PCB. Therefore, it is not possible to measure the coil resistance, and the following procedure should be used to check the motor. Perform the trouble diagnosis by Test Run mode described on Installation Instructions. [Tr...
Page 59 - -5. Noise Malfunction and Electromagnetic Interference
9-5. 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 60 - 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 10. CHECKING ELECTR...
Page 61 - Remove the PCB Ass'y from the electrical
Fuse PCB Ass'y Fig. 5 Fig. 6 Fuse 10-2. 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. 61
Page 62 - SPECIAL PRECAUTIONS WHEN SERVICING UNIT; 1-1. Characteristics of New Refrigerant R410A; Less toxic, more chemically stable refrigerant; Thus, always charge the refrigerant while it is in liquid phase.; CAUTION
11. REFRIGERANT R410A: SPECIAL PRECAUTIONS WHEN SERVICING UNIT 11-1. Characteristics of New Refrigerant R410A 11-1-1. 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 63 - 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 65 - 1-5. In Case of Compressor Malfunction; compressor as quickly as possible.; Length of tubing
11-5. 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 "11-3. Tools Specifically for R410A." 11-5-1. Procedure for Replacing Comp...
Page 66 - 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 67 - 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 11-6. 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 68 - 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.
11-7. Charging Additional Refrigerant 11-7-1. 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. 11-8. Retro-Fitting Existing Systems 11-8-1. ...
Page 71 - Split System Air Conditioner; Indoor Units; Operating Instructions; This air conditioner uses the refrigerant R410A.; Ceiling Panel; • “Single use” means that only one indoor unit is
Split System Air Conditioner Model No. Panasonic Corporation 1006 Kadoma, Kadoma City, Osaka, Japan 85264181213002 Indoor Units CS-KE12NB41CS-KE18NB4UW Outdoor Units(For Single use) CU-KE12NK1CU-KE18NKU (For Multiple use) CU-3KE19NBUCU-4KE24NBUCU-4KE31NBU Operating Instructions Before operating the ...
Page 72 - 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 73 - 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 74 - NAMES OF PARTS; Air Intake
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 75 - Symbols
5 REMOTE CONTROLLER (DISPLAY) (1) Operation mode AUTO ..................................... HEAT ...................................... MILD DRY .............................. COOL ..................................... FAN ........................................ (2) Fan speed Automatic operation .....
Page 76 - 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 78 - 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 79 - OPERATION WITH THE REMOTE CONTROLLER; Automatic Operation
9 OPERATION WITH THE REMOTE CONTROLLER 1. Automatic Operation When the remote controller’s S/M switch is at the “S” (Single) position This unit automatically switches between cooling operation and heating operation according to the difference between the room temperature and the temperature setting....
Page 80 - Adjusting the Fan Speed; A. Automatic fan speed; Simply set the FAN SPEED selector button to the; Night Setback Mode; and
10 3. 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 operation, just set the FAN SPEED selector button as ...
Page 81 - SPECIAL REMARKS; Heating performance; SETTING THE TIMER; How to set the present time; Power failure during operation; Operation
11 • When the HIGH POWER button is pressed, the unit operates at maximum output for 30 minutes, regardless of the desired temperature. The fan speed is 1 step above “High”. • HIGH POWER Mode cannot be used when the operation mode is in Automatic Operation. • When set to High fan speed during heating...
Page 83 - TIPS FOR ENERGY SAVING; Avoid
13 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 84 - When the air conditioner is not running; CARE AND CLEANING; Cleaning the flaps
14 OPERATION WITHOUT THE REMOTE CONTROLLER If you have lost the remote controller or it has trouble, follow the steps below. When the air conditioner is not running Each time the OPERATION button is pressed, the type of operation conducted is indicated by the changing color of the OPERATION lamp. Pr...
Page 85 - Air filter; Care: After a prolonged idle period
15 Air filter The air filter collects dust and other particles from the air and should be cleaned once every 6 months.If the filter gets blocked, the efficiency of the air conditioner drops greatly. The frequency with which the filter should be cleaned depends on the environment in which the unit is...
Page 87 - SPECIFICATIONS; • For Single use; mm
17 SPECIFICATIONS Model No. • For Single use • For Single use Outdoor Unit Indoor Unit CS-KE12NB41 CU-KE12NK1 11,900 [ 3,000 ~ 11,900 ] 47 Single-phase, 115 V, 60 Hz 3.50 [ 0.90 ~ 3.50 ] 4.00 [ 0.90 ~ 4.00 ] 13,600 [ 3,000 ~ 13,600 ] - 49 - 21-9/16×28-11/32×10-7/16 (548×720×265) - 34/32/31 - 35/34/3...
Page 91 - Contents
This air conditioner uses the refrigerant R410A. External diameter of service port R410A: 5/16" Split System Air Conditioner 85264190577002 2011 INSTALLATION INSTRUCTIONS NOTE CV6233187839 Contents Page IMPORTANT!Please Read Before Starting .................................. 2 1. GENERAL ..........
Page 92 - SPECIAL PRECAUTIONS; accidental injury or
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 93 - 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 95 - -5. Additional Materials Required for Installation; Installation Site Selection; 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: direc...
Page 97 - How to Install the Indoor Unit; (1) Fix the suspension bolts securely in the ceiling using; -3. Placing the Unit Inside the Ceiling; transportation before hanging up the indoor unit.
7 Hole-in-anchor Concrete Insert Suspension bolt (M10 or 3/8") Hole-in-plug (locally purchased) Fig. 6-1 23-5/8"(600mm) 21-1/32"(534mm) Ceiling opening dimensions Suspension bolt pitch 23-5/8"(600 mm ) 21-1/32"(534 mm ) Ceiling opening dimensions Suspension bolt pitch Drain tubec...
Page 98 - (2) To install the drain hose, first place 1 of the 2 hose bands
8 In cases where it is necessary to raise the height of thedrain piping, the drain piping can be raised to a maximumheight of 2.78 ft. (850 mm) above the bottom surface ofthe ceiling. Under no conditions attempt to raise it higherthan 2.78 ft. (850 mm) above the bottom surface of theceiling. Doing s...
Page 101 - A. Attaching the corner cover
11 Fig. 6-23 Fig. 6-24 Fig. 6-25 fit into the holes in the ceiling panel. Place the corner cover so that the 3 tabs Then fasten it in place with the supplied screws. Pin Hole for ceiling panel hook the grille from dropping Hook that prevents Can be installed rotated 90 * The grille can be installed ...
Page 102 - General precautions on wiring; then carry out the wiring closely following the wiring diagram.; -8. Recommended Wire Length and Diameter; Never attempt to move the flap by hand.
3-7. Wiring Instructions 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, with a power supply disconnect a...
Page 103 - Table 4; WIRING SYSTEM DIAGRAM
13 Cross-Sectional (A)+(B) (A) Power Supply Wiring Length (ft) (C) Control Fuse or Circuit Area (AWG) (B) Power Line Length (ft) Line Length (ft) Model (#14) (#12) (#14) Breaker Capacity CU-KE12NK1 131 (Max.) 230 (Max.) 65 (Max.) 20A CU-KE18NKU 131 (Max.) 230 (Max.) 100 (Max.) 15A # ... AWG (America...
Page 104 - How to connect wiring to the terminal
14 When connecting each power wire to the corresponding terminal, fol-low the instructions “How to connect wiring to the terminal” and fastenthe wire securely tight with the fixing screw of the terminal plate. How to connect wiring to the terminal a) For Indoor Unit (1) Cut the wire end with a cutti...
Page 105 - For stranded wiring; How to Install the Outdoor Unit; First refer to Section 2. Installation Site Selection.; -1. Wiring Instructions for the Outdoor Unit; according to the drawing on the panel side.
15 For stranded wiring (1) Cut the wire end with a cutting pliers, then strip the insulation to expose the stranded wiring about 3/8" (10 mm) and tightly twist the wire ends. (Figs. 11 and 12) (2) Using a screwdriver, remove the terminal screw(s) on the terminal plate. (3) Using a ring connector...
Page 106 - Refrigerant Tubing; -2. Flaring Procedure with a Flare Tool; Deburring
16 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 107 - To fasten the flare nuts, apply specified torque as:; I M P O R TA N T
17 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. 21) b) To fasten the flare nuts, apply specified torque as: Table 5 5-5. Insulation of Refrigerant Tubing To prevent heat loss ...
Page 108 - (2) Wrap the armoring tape from the bottom of the outdoor; pressure in the system rises; Air Purging with a Vacuum Pump (for Test Run); Apply putty here
Be sure to use a manifold valve forair purging. If it is not available, usea stop valve (field supply) for thispurpose. The “Hi” knob of the mani-fold valve must always be kept closed. Insulated tubes Drain hose Clamp Hi Lo Indoor unit Outdoor unit Manifold valve(Exclusively for R410A) Pressuregauge...
Page 109 - Table 6
19 (4) With the “Lo” knob of the manifold valve open, run the vacuum pump. The operation time for the vacu-um pump varies with tubing length and the capacityof the pump. The following table shows the amountof time for evacuation: Table 6 Required time for evacuation when 26.4 gal/h (100 liter/h) vac...
Page 110 - How to Test Run the Air Conditioner; a) Press and hold the HIGH POWER button and the; OPERATION lamp
20 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 conductthe test run. (1) Set the remote controller in Test Run mode. (Fig. 29) a) Press and hold the HIGH POWER button and the 1HR. TIMER button. b) Then p...
Page 111 - 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 7
21 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 112 - Remote Controller Installation Position; In direct sunlight; To take out the remote controller, pull it forward.; Service Valve Connections; Table 8; Mounting screws
22 7. Remote Controller Installation Position The remote controller can be operated from either anon-fixed position or a wall-mounted position. To ensure that the air conditioner operates correctly, donot install the remote controller in the following places: In direct sunlight Behind a curtain or o...
Page 113 - -1. Address Setting of the Remote Controller; (3) Press and hold the remote controller HIGH; Test run mode
23 ACL(Reset) button 1HR.TIMERbutton ON/OFF operation button HIGH POWERbutton 8. Address Switch 8-1. Address Setting of the Remote Controller The address can be set in order to prevent interfer-ence between remote controllers when 2 indoor unitsare installed near each other. The address is normallys...
Page 116 - FEATURES; CONTENTS
2 FEATURES • Microprocessor Controlled Operation The interior compartment of the remote controller contains several features to facilitate automatic operation, easy logically displayed for easy use. • 24-Hour ON or OFF Timer This timer can be set to automatically turn the unit on or off at any time ...
Page 120 - Displayed when setting timer
6 REMOTE CONTROLLER (DISPLAY) (1) Operation mode AUTO .....................................(only for COOL/DRY/HEAT Model) HEAT ......................................(only for COOL/DRY/HEAT Model) MILD DRY .............................. COOL ..................................... FAN ....................
Page 124 - Operation together with the daily ON/OFF
10 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 127 - Installation location; How to install the remote controller; I M P O RTA N T; Table 1; Wired Remote Controller
Parts supplied with the remote controller See Table 1. Remote controller installation guidelines Mount the remote controller 3.3 to 4.9 ft. (1 to 1.5meters) off the floor where it can sense the averagetemperature of the room. Do not mount the remote controller in a placeexposed to direct sunligh...
Page 129 - How to wire the remote controller
Fig. 8 Indicator Wire harness Ceilingpanel Terminal cover Clamps 7P IND and 4P RCwiring connector 5P FLAPwiring connector Clamping strap FLAP RC IND 7P 4P 5P FLAPwiringconnector Wire harness Remotecontroller Wire harness Control PCB Indicator 7P IND and 4P RCwiring connector Putty 3 How to wire the ...
Page 130 - a) Press and hold the NIGHT SETBACK button and; Printed in China
4 Fig. 9 Fig. 10 Fig. 11 ON/OFFoperation button 1 HR.TIMERbutton NIGHT SETBACKbutton ACL (Reset)button SENSOR button OPERATION lamp TIMER lamp HIGH POWER lamp REMOTE CONTROL receiver OPERATION button How to Test Run the Air Conditioner After turning on the power of the air conditioner, use theremote...
