Panasonic : S-26PU1U6 User Manual Download

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INSTALLATION INSTRUCTIONS

Single Split System Air Conditioner

This air conditioner uses the refrigerant R410A.

NOTE

External diameter of service port R410A: 5/16"

Remote Controllers

Timer Remote Controller (wired)

CZ-RTC2

Timer Remote Controller comes with Instructions Manual.

Wireless Remote Controller

CZ-RWSU1U

for U1 and T1 type Indoor units

CZ-RWSC1U

for F1 type Indoor units

CZ-RWSK1U

for K1 type Indoor units

Units should be installed by licensed contractor according to
local code requirements.

85464369532012

Model No.

Indoor Units

Type

Indoor Unit Type

Remarks

4-Way Cassette

S-26PU1U6

(CZ-24KPU1U)**

S-36PU1U6

(CZ-36KPU1U)**

S-42PU1U6

(CZ-36KPU1U)**

with Wired Remote Controller: CZ-RTC2

Wall Mounted

S-26PK1U6

with Wireless Remote Controller: CZ-RWSK1U

Ceiling

S-26PT1U6

S-36PT1U6

S-42PT1U6

with Wired Remote Controller: CZ-RTC2

Low Silhouette Duct

S-26PF1U6

S-36PF1U6

with Wired Remote Controller: CZ-RTC2

** Panel (optional parts)

CV6233186962

Panasonic̲PAC-i̲IndoorUnit̲US-le1 1

2011/11/02 15:17:08

Summary of Contents for : S-26PU1U6

Page 1: ...talled by licensed contractor according to local code requirements 85464369532012 Model No Indoor Units Type Indoor Unit Type 26 36 42 Remarks U1 4 Way Cassette S 26PU1U6 CZ 24KPU1U S 36PU1U6 CZ 36KPU1U S 42PU1U6 CZ 36KPU1U with Wired Remote Controller CZ RTC2 K1 Wall Mounted S 26PK1U6 with Wireless Remote Controller CZ RWSK1U T1 Ceiling S 26PT1U6 S 36PT1U6 S 42PT1U6 with Wired Remote Controller C...

Page 2: ...nits Get a partner to help and bend your knees when lifting to reduce strain on your back Sharp edges or thin aluminum fins on the air conditioner can cut your fingers When Installing In a Room Properly insulate any tubing run inside a room to prevent Select an installation location which is rigid and strong enough to support or hold the unit and select a location for easy maintenance sweating tha...

Page 3: ...ant gas on contact with fire or heat can produce dangerously toxic gas Confirm after installation that no refrigerant gas is leaking If the gas comes in contact with a burning stove gas water heater electric room heater or other heat source it can cause the generation of poisonous gas WARNING Do not clean inside the indoor and outdoor units by users Engage authorized dealer or specialist for clean...

Page 4: ... unit 2 2 Since refrigerant composition changes and performance decreases when gas leaks collect the remaining refrigerant and recharge the required total amount of new refrigerant after fixing the leak 3 Different tools required 3 1 Tool specifications have been changed due to the characteristics of R410A Some tools for R22 and R407C type refrigerant systems cannot be used Unit inch Material O Co...

Page 5: ...nt if the amount in the charging cylinder is less than 20 Also charge the minimum necessary amount to the charging cylinder before using it to charge the air conditioning unit 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 Configuration and characteristics of cylinders Fig...

Page 6: ...3 24 Installing the Drain Piping 3 25 Checking the Drainage 3 26 Increasing the Fan Speed 3 27 When Installing the Indoor Unit 3 28 Required Minimum Space for Installation and Service SUPPLEMENT ON DRAIN PIPING 36 4 ELECTRICAL WIRING 37 4 1 General Precautions on Wiring 4 2 Recommended Wire Length and Wire Diameter for Power Supply System 4 3 Wiring System Diagram 4 4 How to Connect Wiring to the ...

Page 7: ...If you wish to purchase these materials separately 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 thickness of the insulation should be not less than 5 16 3 Use insulated copper wire for field wiring Wire size varies with the total length of wiring Refer to Sec...

Page 8: ...reless remote controller 1 1 2 2 Truss head tapping screw Battery 4 5 8 in Wireless remote controller mounting cradle 1 Insulator Drain hose adaptor 1 Table 1 2 Wall Mounted Table 1 1 4 Way Cassette Part Name Figure Q ty Part Name Figure Q ty Special washer Drain insulator Flare insulator Drain hose adaptor Drain hose clamp Insulating tape Vinyl clamp Full scale installation diagram Sealing putty ...

Page 9: ...uss head tapping screws Batteries 4 5 8 in Q ty Q ty Wireless remote controller mounting cradle Table 1 5 Accessories for the Wireless Remote Controller CZ RWSU1U Part Name Figure Q ty Part Name Figure Q ty Operation controller 1 Spacers 2 Indicator section 1 4 Wireless remote controller 1 2 1 3 Batteries 2 Wire joints 4 Pan head tapping screws 4 13 32 in Truss head tapping screws 4 5 8 in Run Tim...

Page 10: ...ews M4 1 in Ceiling installation paper pattern 3 3 4 2 1 32 in CZ RWSC1U Part Name Figure Q ty Part Name Figure Q ty 1 2 Carrier for ceiling installation 1 Wood screws 2 Wireless remote controller 1 Spacers 4 1 Wire joints 4 Batteries 2 Clamp 2 1 Separate type signal receiving unit comes with 7 7 8 in wire Wireless remote controller mounting cradle 1 Panasonic PAC i IndoorUnit US le10 10 Panasonic...

Page 11: ...ondition of 1 indoor unit only the main unit WARNING Always check the gas density for the room in which the unit is installed CAUTION Pay special attention to any location such as a basement or recessed area etc where leaked refrigerant can collect since refrigerant gas is heavi er than air Check of limit density When installing an air conditioner in a room it is neces sary to ensure that even if ...

Page 12: ... 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 around the unit install the unit within the maximum elevation difference above or below the outdoor unit and within a total tubing length L from the outdoor unit as detailed in the installation instructions packed with the outdoor unit allow room for moun...

Page 13: ...it and the panel Type Length Table 3 2 Unit inch mm S 26PU1U6 CZ 24KPU1U S 36PU1U6 S 42PU1U6 CZ 36KPU1U A 6 3 16 157 6 3 16 157 7 5 32 182 7 5 32 182 10 9 32 261 11 15 32 291 12 1 8 308 13 1 16 338 4 7 8 124 4 7 8 124 D E B C Hole in anchor Hole in plug Concrete Insert Suspension bolt M10 or 3 8 field supply Fig 3 1 g n i n e p o g n i l i e C 2 3 9 2 3 Grille center nsion bolt pitch e p s u S 6 1...

Page 14: ...ance between the bottom of the bolt and the bottom of the ceiling of 5 8 or more as shown in Fig 3 4 3 Thread the 2 hexagonal nuts field supply and washers onto the 4 suspension bolts as shown in Fig 3 5 Use 2 sets of nuts and washers upper and lower so that the unit will not fall off the suspension lugs 4 Remove the protective cardboard used to protect the fan parts during transport 5 Adjust the ...

Page 15: ... as this could result in water leaks Fig 3 9 Do not install the pipe with an upward gradient from the connection port This will cause drain water to flow backwards and leak when the unit is stopped Fig 3 10 Do not apply force to the piping on the unit side when connecting the drain pipe The pipe should not be allowed to hang unsupported from its connection to the unit Fasten the pipe to a wall fra...

Page 16: ...uctions attached to the outdoor unit 3 After drain checking is finished return the Opera tion Selector switch to the RUN position ON posi tion and remount the tube cover WARNING Do not supply power to the unit until the tubing and wir ing to the outdoor unit are completed CAUTION Be careful since the fan will start turning when checking the drainage WARNING To mount the tube cover use 5 16 4 8 mm ...

Page 17: ...panel 2 Pull down the two panel catches on the body of the indoor unit body Fig 3 15 CAUTION Never touch or attempt to move the air direction louver by hand or you may dam age the unit Instead use the remote controller if you want to change the direction or air flow Ceiling panel Air intake grille Latch Screw Safety cord Air filter 45 Fig 3 13 Fig 3 14 Fig 3 15 Ceiling panel Screws M5 with washer ...

Page 18: ...ting screws M5 with washers to permanently fasten the ceiling panel 4 Install the wiring connector from the ceiling panel to the connector in the electrical component box of the indoor unit After installing the connector use the clamp on the body of the indoor unit to secure the wiring 5 Install the air filter and air intake grille by perform ing the steps in section 3 6 in reverse NOTE Hook again...

Page 19: ...lenum with the supplied screws M5 L4 7 8 4 pcs CAUTION When installing in a pre existing location install the indoor unit before installing the duct connection box Air intake plenum Type CZ 26BCU1U CZ 24KPU1U S 26PU1U6 CZ 42BCU1U CZ 36KPU1U S 36PU1U6 S 42PU1U6 Air intake plenum for fastening Duct connection flange box for fastening For fresh air intake 2 5 32 2 3 8 4 ø 1 8 h o l e ø4 13 32 Detail ...

Page 20: ... green to the other side of the 3P socket white and 2P socket green respectively Reattach the socket cover Fig 3 18 Duct connection box Duct connection flange Panel catch M4xL1 2 4pcs Installation screws Ceiling panel Please fix the socket cover located on the switch box after closing the lid for the switch box CAUTION Take adequate precautions when installing onto the ceiling The air intake plenu...

Page 21: ... in any other location 4 Using a sabre saw key hole saw or hole cutting drill attachment cut a hole in the wall See Table 3 3 and Fig 3 22 Table 3 3 5 Measure the thickness of the wall from the inside edge to the outside edge and cut PVC pipe at a slight angle 1 4 shorter than the thickness of the wall Fig 3 23 6 Place the plastic cover over the end of the pipe for indoor side only and insert in t...

Page 22: ...es in the panel over the stud locations and then mount the rear panel 2 Double check with a ruler or level gauge that the panel is level This is important to install the unit properly Fig 3 26 3 Make sure the panel is flush against the wall Any space between the wall and unit will cause noise and vibration b If Block Brick Concrete or Similar Type Wall Make 3 16 dia holes in the wall Insert rawl p...

Page 23: ...er part Fig 3 29a Insert the tabs in the slots and push the lower part of the grille back into position 3 Press at each of the 5 tabs to completely close the grille Make sure that the grille and frame are firmly fitted together Fig 3 29b 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 Fi...

Page 24: ...ical 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 32 2 Route the inter unit wiring from the back of the indoor unit and pull it toward the front for connection Figs 3 33a and 3 33b 3 Connect the inter unit wiring to the corresponding terminals on the terminal plate Figs 3 33a and 3 33b while referring to...

Page 25: ...bing drain hose and inter unit wiring as shown in Fig 3 36 3 18 Installing the Drain Hose 1 The drain hose should be slanted downward on the outdoor side Fig 3 37 2 Never form a trap in the course of the hose 3 If the drain hose will run in the room insulate the hose so that chilled condensation will not damage furniture or floors Fig 3 38 Foamed polyethylene or its equivalent is recommended Cover...

Page 26: ...upport as shown in Fig 3 41 WARNING It is important that you use extreme care in supporting the indoor unit from the ceiling Ensure that the ceiling is sufficiently strong enough to support the weight of the unit Before hanging the ceiling unit test the strength of each attached suspension bolt 4 Screw in the suspension bolts allowing them to protrude from the ceiling as shown in Fig 3 41 The dist...

Page 27: ...method varies depending on whether the unit is next to the ceiling or not Figs 3 45 and 3 46 e d i l S Hinge Air intake grille Pull out the air Intake grille pushing claws of the hinges Screw Latch Fig 3 43 Slide toward front side Side panel Fig 3 44 unit Suspension bolt field supply Ceiling surface Washer supplied Double nut field supply Fixture Fig 3 45 unit Suspension bolt field supply Washer s...

Page 28: ...l Please confirm that the indoor unit is evenly suspended For the instal lation to be correct leave a clearance of about 3 8 between the ceiling panel and the ceiling surface and fill the gap with an appropriate insulation or filler material 8 If the tubing and wiring are to go towards the rear of the unit make holes in the wall Fig 3 50 9 Measure the thickness of the wall from the inside to the o...

Page 29: ...he room to prevent dripping Use the supplied drain pipe to connect the drain pipe with the drain outlet of the indoor unit After connecting the drain pipe securely wrap the supplied drain pipe insulator around the pipe seal the gap at the drain socket with the supplied black insulation tape then secure it with clamps Fig 3 55 After the drain piping pour water into the drain pan to check that the w...

Page 30: ... 1 32 in Suspension lug Power supply outlet 2 ø1 3 16 hole Fresh air intake port ø5 29 32 hole Flange for the flexible air outlet duct ø7 7 8 hole Tube cover Electrical component box Flange for the air intake duct Option or field supply 9 10 9 10 11 11 Suspension bolt pitch h c t i p t l o b n o i s n e p s u S M ø1 8 Hole 4 ø15 32 Hole Hole A O D L ø1 4 I 13 32 13 32 2 3 3 1 2 3 5 2 8 7 7 2 3 5 2...

Page 31: ... the ceiling material if necessary 3 Thread the 2 hexagonal nuts and washers field supply onto the 4 suspension bolts as shown in Figs 3 60 and 3 61 Use 2 sets of nuts and wash ers upper and lower so that the unit will not fall off the suspension lugs WARNING It is important that you use extreme care in supporting the indoor unit inside the ceiling Ensure that the ceiling is strong enough to suppo...

Page 32: ...ipe then secure it with the supplied clamps Fig 3 64 NOTE Make sure the drain pipe has a downward gradient 1 100 or more and that there are no water traps CAUTION Tighten the hose clamps so their locking nuts face upward Fig 3 63 Air outlet duct Air outlet grille Ceiling material Indoor unit Bolt anchor Suspension bolt Air intake duct Air intake grille Drain hose supplied Packing supplied Transpar...

Page 33: ...wing procedure to check that the water will drain smoothly For this prepare a bucket and wiping cloth to catch and wipe up spilled water 1 Connect power to the power terminal board L1 L2 terminal inside the electrical component box 2 Remove the tube cover and through the opening slowly pour about 0 3 gal of water into the drain pan to check drainage 3 Short the check pin CN5 white on the indoor co...

Page 34: ...values are shown based on the H air flow For the 26 type the air flow is 636 CFM while the external static pressure is 49 Pa at H position If external static pressure is too great due to long extension of duct for example the air flow volume may drop too low at each air outlet This problem may be solved by increasing the fan speed as explained above Refer to SUPPLEMENT ON DRAIN PIPING Indoor Fan P...

Page 35: ...pace for Installation and Service If the ceiling tiles cannot be removed provide the opening holes on the lower side of the indoor unit for removing the unit in order to maintain and clean the drain pan and heat exchanger or provide a minimum of 1 0 ft or more space Fig 3 72 Prohibited Prohibited Air outlet duct flange Level gauge Make sure to confirm that the unit is in horizontal at the position...

Page 36: ... Make sure whether drain water is running smoothly Water leakage 5 Make sure whether the power voltage matches the nameplate Inoperative burnout 6 Make sure whether there is miswiring or incorrect connection Inoperative burnout 7 Make sure whether the ground construction is completed Ground leakage 8 Make sure whether the wire gauge is followed by the recommended specifications Inoperative burnout...

Page 37: ...om locality to locality For field wiring rules must follow your LOCAL ELECTRICAL CODES before beginning You must ensure that installation complies with all relevant rules and regulations 8 To prevent malfunction of the air conditioner caused by electrical noise care must be taken when wiring as follows The remote control wiring and the inter unit control wiring should be wired apart from the inter...

Page 38: ...e to connect as shown in the Wiring System Diagram 3 In case of separate supply connection to indoor unit over current protection must be provided between power source and indoor unit MAXIMUM OVER CURRENT PROTECTION 15 A FUSE OR HACR TYPE CIRCUIT BREAKER Panasonic PAC i OutdoorUnit US l22 22 2011 07 08 9 46 23 L1 L2 Unit control Line Unit control Line U1 Power supply Power supply U2 5P terminal bo...

Page 39: ...ded wiring about 3 8 Fig 4 1 2 Using a Phillips head screwdriver remove the ter minal screw s on the terminal plate 3 Using a ring connector fastener or pliers securely clamp each stripped wire end with a ring pressure terminal Fig 4 1 4 Place the ring pressure terminal and replace and tighten the removed terminal screw using a screwdriver Fig 4 2 Fig 4 1 Stranded wire Ring pressure terminal Strip...

Page 40: ...ce where it is covered More than 26 ft away from the air conditioner In the path of the air conditioner s airstream Where it may become extremely hot or cold Where it may be subject to electrical or magnetic interference 1 If Wall mounted Fixed Position Install the remote controller at a convenient location on a nearby wall However before attaching the remote controller mounting cradle check that ...

Page 41: ...separately through the address switches The operating control has the reception address switch and the remote controller has the transmission address switch This function is utilized by matching the transmission and reception address switches 5 4 Setting the Model Code Flap display selector switch Make the slide switch settings in the battery compartment box of the remote controller depending on t...

Page 42: ... to the remote control wire WHT in the electrical component box For details on wiring see the section 5 9 Electrical wiring 3 Install the ceiling panel 4 Connect the indicator section and the operating controller with the 6P connector white 5 Form the wires with vinyl clamps and fasten 6 Connect the ceiling panel wiring connector 2P 3P to the body connector in the electrical component box 7 For de...

Page 43: ...e air intake section space between the fan motor and the electrical component box Fig 5 9 1 Fasten the operating controller to the ceiling panel of the air intake section with the 2 supplied screws 4 L13 32 2 Draw the lead wires into the electrical component box and connect the operating controller 2 wires WHT BLK to the remote control wires in the electrical component box 3 Connect the indicator ...

Page 44: ... air conditioner from overloading the outdoor unit will not start running for 3 minutes after power is applied or the air conditioner is turned off and then back on When the air conditioner fails to start the test run 1 or more of the 3 alarm indicator lamps on the indoor unit will flash See next section When the DIP switch is set to TEST ON temperature control from the wireless remote controller ...

Page 45: ... remote controller Compressor protector is working S C errors between indoor and outdoor units Indoor or outdoor thermistor is malfunctioning Outdoor unit protector is working Indoor unit protector is working TEST RUN switch on the operation controller is in ON state S C Serial communications OPERATION lamp TIMER lamp STANDBY lamp Remote control receiver Fig 5 12 NOTE Stick the alarm message label...

Page 46: ...1 If Wall mounted Fixed Position Install the remote controller at a convenient location on a nearby wall However before attaching the remote controller mounting cradle check that the remote controller can operate from the desired wall position Fig 5 14 How to Install Batteries See Fig 5 15 1 Press and slide the lid on the back of the remote controller in the direction of the arrow 2 Install two AA...

Page 47: ...in the lower section and prying it off 2 Cut out a section 3 3 4 2 1 32 on the ceiling using the paper pattern supplied as a guide 3 Run the wire through the mounting carrier and insert into the installation hole as shown in Fig 5 20 4 Fit securely into the ceiling material at sections A and B as shown in Fig 5 21 5 Connect the wire 2 wire core from the signal receiving unit with the wire from the...

Page 48: ...t the air conditioner from overloading the outdoor unit will not start running for approximately 3 minutes after power is applied or the air conditioner is turned off and then back on When the DIP switch is set to TEST ON temperature control from the wireless remote controller is disabled Do not use this setting at any time other than for the test run Doing so will place an excessive load on the s...

Page 49: ...r supply or mis wiring of signal receiving unit S C errors between the indoor unit s controller PCB and signal receiving unit S C errors between indoor and outdoor units Alternately Indoor unit protector is activated Alternately Outdoor unit protector is activated Compressor protector is activated Concurrent Mis setting of indoor unit Concurrent Mis setting of outdoor unit S C Serial communication...

Page 50: ...es place successively at intervals of 1 second by using combinations of the address setting of each unit In case of using shielded wires for inter unit control wiring ground the shield on one side Fig 5 26 Otherwise misoperation because of electrical noise may occur Shielded wire Ground Fig 5 26 U1 U2 U1 U2 1 2 Ground earth Outdoor unit Indoor unit No 1 1 2 Remote Controller Inter unit control wir...

Page 51: ...der of the group address when the remote controller is operated When using multiple signal receiving units up to 2 can be used one is the main signal receiving unit and the other is the sub signal receiving unit To set up a sub signal receiving unit change its remote control address connector RCU ADR located on its PCB from main to sub position main when shipped from factory sub 1 2 Wire joint Rem...

Page 52: ...method To execute this control make the setting according to the following procedure 1 Of the two installed signal receiving units make one the main signal receiving unit factory shipped state 2 On the other signal receiving unit change the address connector on the PCB from main to sub position In this state it functions as a sub signal receiving unit Basic wiring diagram Connection wiring Signal ...

Page 53: ...n Set the indoor unit controller to TEST Return the indoor unit controller to NORM Item 5 21 3 NO Is operation possible Verify the combination wiring of indoor and outdoor units Check using the Diagnosis function table Refer to 5 24 YES Note Check the indoor side drainage Item 5 20 Item 5 21 3 Wireless remote controller transmitter Verify that sliding switch 1 is in the S position S K N Set slidin...

Page 54: ...roller and the receiver When the remote controller signal is received correctly the indoor unit beeps It beeps twice only when operation is started Do not drop throw or wash the remote controller Do not place the remote controller in a location exposed to direct sunlight or near a stove or similar appliance 5 21 3 Test run Using the controller 1 Slide the main unit controller switch from ON to TES...

Page 55: ...g connections then disconnect the 2P connectors indoor unit blue OC CN40 outdoor unit blue OC which are connected to the PCB and connect the other 2P connectors indoor unit brown EMG CN44 outdoor unit brown EMG See the figure below If operation is still not possible with the brown connectors connected cut the varistor black for both the indoor and outdoor units Be sure to turn OFF the power before...

Page 56: ...ler only The slide switch setting at the time of factory shipment for model K1 type is B When using wired remote controller as sub to set its data to sub in remote controller setting mode When using wireless remote controller as sub set the switch on the indoor unit control PCS to A S 26PK1U6 A Nos 1 2 OFF No 3 ON B Nos 1 2 3 all OFF When using wireless remote controller as main When using wireles...

Page 57: ... panel connector is not connected correctly Group connection Remote controller is not connected with indoor unit correctly Indoor unit power is not ON Automatic address setting has not been completed Inter unit control wiring is cut or is not connected correctly Remote controller is not connected with indoor unit correctly Remote controller is not connected with indoor unit correctly Same as at le...

Page 58: ...l Air intake grille air intake optional Air outlet grille optional Low Silhouette Ducted type F1 type Water drain Air intake grille air intake Air outlet Drain pipe can be connected to either the left or right side Ceiling type T1 type Air outlet Air intake Wall Mounted type K1 type Panasonic PAC i IndoorUnit US le58 58 Panasonic PAC i IndoorUnit US le58 58 2011 11 02 15 17 39 2011 11 02 15 17 39 ...

Page 59: ...ects dust and other particles from the air and should be cleaned at regular intervals as indicated in the table below or when the filter indication on the display of the remote controller wired type shows that the filter needs cleaning If the filter gets blocked the efficiency of the air conditioner drops greatly Air filter Type U1 F1 T1 K1 Period Six months Depending on filter specifications Two ...

Page 60: ... filter CAUTION When cleaning the air filter never remove the safety chain If it is necessary to remove it for servicing and maintenance inside be sure to reinstall the safety chain securely hook on the grille side after the work When the filter has been removed rotating parts such as the fan electrically charged areas etc will be exposed in the unit s opening Bear in mind the dangers that these p...

Page 61: ...e hold of the finger hold on the air filter pull it toward you Ceiling type T1 How to remove the filter continued 1 Move the flap on the air outlet grille to its lowest position with the remote controller 2 The filter is disengaged by pushing the tab up gently Hold the air filter by the tab at the bottom and pull downward Wall mounted type K1 When replacing the filter make sure that the FRONT mark...

Page 62: ...e center Check the indoor and outdoor unit air intakes and outlets for blockage if there is a blockage remove it Care After a prolonged idle period Operate the fan for half a day to dry out the inside Disconnect the power supply and also turn off the circuit breaker Clean the air filter and replace it in its original position Outdoor unit internal components must be checked and cleaned periodicall...

Page 63: ...tion Poor cooling or heating performance 1 Dirty or clogged air filter 2 Heat source or many people in room 3 Doors and or windows are open 4 Obstacle near air intake or air discharge port 5 Thermostat is set too high for cooling or too low for heating 6 Outdoor temperature is too low 7 Defrosting system does not work 1 Clean air filter to improve the airflow 2 Eliminate heat source if possible 3 ...

Page 64: ...DC0811 21111 Printed in Japan Panasonic PAC i IndoorUnit US le1 1 Panasonic PAC i IndoorUnit US le1 1 2011 11 02 15 17 41 2011 11 02 15 17 41 ...

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