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Sanyo STW-2 User's Manual

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1. Electrical Requirements 1 All wiring must conform to the local electrical codes Consult your dealer or a qualified electrician for details 2 Each unit must be properly grounded with a ground or earth wire or through the supply wiring 3 Wiring must be done by a qualified electrician 4 Never use an extention cord with this air conditioner Safety Instructions Read this Instruction Manual carefully before using this air conditioner If you still have any difficulties or prob lems consult your dealer for help This air conditioner is designed to give you comfort able room conditions Use this only for its intended purpose as described in this Instruction Manual Avoid letting cooled heated air blow directly on your body for a long time Never use or store gasoline or other flammable vapor or liquid near the air conditioner it is very dangerous A e Do not tum the air conditioner on and off from the power mains switch Use the mode selector switch e Do not stick anything into the air outlet of the unit This is dan gerous because the fan is rotat ing at high speed Do not let children play with the air conditioner Do not cool or heat the room too much if babies or invalids are present AE Names of Parts Air outlet Cover switch and control panel Rear grille Wall case Air intake Front grille Air Intake Air from the room is drawn into
2. 3 INSTALLATION 1 Remove the front grille by pulling out at the bot tom to release it then lift it up to clear the rail along the chassis top 2 Slide the chassis into the wall case and secure with four screws through the chassis flange holes Wall case 3 Reinstall the front grille by hooking the top over the rail along the chassis top then pushing it in at the bottom US STW PTAC 8 8 01 5 34 PM Page 8 F 4 PERMANENT CONNECTION 4 1 For 230 208V Units The 230 208V model is equipped for connection with a power cord according to the unit capacity at the time of shipment Should local codes or special requirements speci fy permanent connection of this unit use optional adapter kit Cover plate and Bottom plate STKOJJ B A power cord is supplied with 230 208V units For direct connect applications the power cord is cut and a wire nut connection is made to the building power supply The cover plate and bottom plate are the junction box kit The conduit and wire nuts are supplied by the installer 4 1 1 Preparation 1 The electrical rating marked on the previously installed air conditioner must be the same as the supply branch circuit 2 The modification kit provides for connection of 1 2 trade size electrical conduit and connection to a wiring system in accordance with the National Electric Code ANSI NFPA No 70 1999 4 1 2 Installation 1 Remove the Front Grille from the chassi
3. the thermostat control cannot be turned all the way to the highest end or lowest end This is normal Do not attempt to force the control beyond its stopping points e A dirty air filter is blocking air flow The filter should be cleaned at least once every 2 weeks See the instruc tions in the cleaning section The room may have been very hot or very cold when the air conditioner was first turned on Allow time for it to cool down or warm up e The ventilation control may be set to the OPEN position allowing outside air to enter the room BURNING ODOR e Dust on the surface of the electrical ALWAYS COOL DURING COOLING OPERATION AIR IS NOT ALWAYS HOT DURING HEATING OPERATION AT START OF heater can cause a burning odor at HEATING the beginning of the heating opera OPERATION tion This odor should quickly fade OPERATING e Relay clicks may be heard when the SOUNDS compressor or fan cycles on and off This is normal The fan runs continuously when the unit is operating unless the Fan Cycle Switch under the control panel is set to CYCLE In this case the fan cycles on and off with the electrical heater or compressor AIRIS NOT The Fan Cycle Switch may be set to Fan Cont continuous This causes the fan to blow room air even when the compressor is off The continuous air flow provides better overall tem perature control e The Fan Cycle Switch may be set to Fan Cont contin
4. this section and passes through air filters which remove dust Air Outlet Conditioned air is blown out of the air con ditioner through the air outlet Control Panel and Operation Functions THERMOSTAT SELECTOR OFF FAN JAN HEAT e ol eet Ded MAW Ye Thermostat A A g Mode N selector E y WARMER COOLER termediate iange 72 F J 88 F 1 55 F WARMER COOLER Thermostat Control The thermostat knob is used to control the room tempera ture The unit automatically cycles on and off to maintain room temperature A comfortable temperature will be maintained in most rooms when the control is set to about intermediate range Mode Selector HI HEAT provides heating with high fan speed operation LOW HEAT provides heating with low fan speed operation OFF setting stops heating or cooling operation FAN provides fan operation without cooling or heating LO COOL provides cooling with low fan speed operation HI COOL provides cooling with high fan speed operation As long as power is connected to the unit Freeze Protection always functions at any position even at OFF position e US STW PTAC 8 8 01 5 34 PM Page 3 Operation 1 Set the mode selector for fan cooling or heating opera tion 2 Set the thermostat to the desired position Re
5. to extreme positions Restrictions to full rotation of the thermostat knob may require explanation to the room occupant that the unit will provide comfort able conditions at the settings allowed To access the limiting screws remove the front grille the thermostat knob and the operation knob by pulling each knob off its shaft and the control panel See the illustration Fan Cycle Switch on page 4 Set the limiting screws to the desired set ting and replace the control panel and the control knobs If the settings do not allow sufficient room temperature control the limiting screws may have to be repositioned Stop link Tapped holes 10 O O De Thermostat O shaft Warmest ey Coldest Temperature limiting screws location at shipment When the limiting screws are relocated it is recom mended that the screws be set no higher than the second hole from the original bottom position This provides an operating range between approximately 58 F and 80 F In order to maximize the benefit of the temperature limiting it may be necessary to adjust the limiting screws seasonally maintained at moder ate temperatures i e heating season temperatures limited between 60 F and 75 F cooling season tem peratures limited between 85 F and 65 F US STW PTAC 8 8 01 5 34 PM Page 10 p 7 REMOTE CONTROL The unit may be controlled either by the unit mount ed controls Control Panel or by optional Cl
6. NCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM All wiring must conform to local electrical codes Each unit must be properly grounded with a ground or earth wire or through the supply wiring DO NOT under any circumstances cut or remove the third ground prong from the power cord plug Never use an extension cord with this air conditioner DO NOT use a damaged power cord plug or wall out let Replace them immediately DO NOT change the internal wiring or any part of the system e DO NOT turn the air conditioner on and off by plugging and unplugging Use the Operation switch SELEC TOR Follow National Electrical Code NEC and local codes ordinances and regulations All wiring including installation of receptacles must be in accordance with these codes The NEC requires permanent connection for installa tions over 250 volts e Protective devices fuses or circuit breakers accept able for this air conditioner are specified on the name plate of each unit Aluminum building wiring may pose special problems consult a qualified electrician When Transporting Be careful when picking up and moving the air conditioner 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 Servicing Turn the power OFF at the main power box mains before opening the unit to check or
7. US STW PTAC 8 8 01 5 34 PM Page 1 OWNER S MANUAL SANYO PACKAGED TERMINAL AIR CONDITIONER cool Heat Model STW 2 Series Operating Instructions Contents Page Alert SYyMboOIS lt scciocoricia ta trineos 1 Front Grille toi rosita 3 Installation Location cccccccccccnnnncncnccncncnonoo 2 Other Features oocccccccccnncnoccconococoncnnninicanccncnnnos 3 Electrical Requirements oo ococcconnnccccccnnnococccnccannno 2 Care and Cleaning cccccccceeeeeeeeeeeeeeeneeeeees 4 Safety Instructions 0 ccceee eens eeeeeeeteeees 2 Tips for Energy Saving ccceesceeeeeeeeeneeeeees 5 Names of Parts ren 2 Troubleshooting cc eee ceeeeeeneeeeeeennaeeeeeeeaes 5 Control Panel and Operation Functions 2 Installation Instructions nten Contents Page Model No STW 2 Series IMPORTANT i Power Source Please Read Before Starting ceeeeeee 6 60 Hz single phase 230 208V amp 265V 1 NAMES OF PARTG 0 cccccccccccecssesessseees 7 2 WALL CASE AND REAR GRILLE 7 3 INSTALLATION 000c cccccccccccccsssssstaeeeeeeeeees 7 4 PERMANENT CONNECTION 0 c cc008 8 4 1 For 230 208V Units coccion 8 Alert Symbols 4 1 1 Preparation c ccscesseesstaasesecssesseesees 8 The following symbols used in this manual alert you to potential ly dangerous c
8. ass 2 ther mo controller SC2001 for Cool Heat Model and 5C2201 for Heat Pump Model with optional Interface kit STKO2LVC Detailed instructions are included in the kit FDC Class 2 Remote DN a A Low voltage Terminals on Interface kit 10 8 FRONT DESK CONTROL The unit may be connected to a switch at the front desk to control on and off operation of the compres sor or heater from the front desk with the optional interface kit See the picture below When the switch is set to OPEN the unit is operable When the switch is set to CLOSED the unit is made inoperative Detailed hook up instructions are in the interface kit Follow the recommended wire sizing in the table below Two wires must be used from each FDC switch to each individual unit Good wiring practices e g twisted pairs SEPARA TION FROM POWER CIRCUITS must be followed to minimize induced voltages which may harm the con trol system Do not use a common line in the FDC wiring A 24V A C transformer is contained within the unit and no external voltage should be applied to the unit through the FDC switch The Freeze Protection remains in active mode to help protect against low temperature damage even though the unit may be OFF by FDC Recommended Wire Size for Front Desk Control Installation Wire Size AWG Maximum Allowable Length 22 600 ft 20 900 ft 18 1500 ft 16 2000 ft p E3 Interface kit optional A Termina
9. ere If extremely dirty it may need to be professionally steam cleaned Base Pan In some installations dirt or other foreign matter may be blown into the unit from the outside and settle in the base pan the bottom of the unit Check the base pan periodically and clean it out if necessary Tips for Energy Saving Do not e Block the air intake and outlet of the unit If they are obstructed the unit will not work well and may be damaged e Let direct sunlight into the room Use sunshades blinds or curtains If the walls and ceiling of the room are warmed by the sun it will take longer to cool the room Do e Keep the air filter clean Refer to Care and Cleaning A clogged filter will impair the performance of the unit e To prevent conditioned air from escaping keep win dows doors and any other openings closed e Keep the ventilator closed for economy and maximum cooling p Troubleshooting PROBLEM POSSIBLE CAUSE AIR CONDITIONER The power cord is not plugged in or DOES NOT circuit breaker is tripped OPERATE AIR CONDITIONER DOES NOT COOL OR HEAT AS IT SHOULD e The unit is waiting for the compressor overload protector to reset e Curtains blinds or furniture blocking the front of the air conditioner are restricting the air flow e Thermostat control may not be set high low enough Turn the control to a lower or higher position NOTE In some installations
10. fer to the Setting Temperature Guide on page 2 The temperatures at the Setting Temperature Guide on Page 2 are provided for reference only and may differ from the actual temperature of the room How to stop the air conditioner Set the mode selector to OFF position How to restart the air conditioner Set the mode selector to the desired position Front Grille To remove Additional controls are located behind the front grille Pull out to release it from the tabs Then lift up Front grille To reinstall Place the tabs over the top rail Push inward until it snaps into place Air Louvers To change the louver direction remove the front grille and 2 louver screws that hold the louvers in place Turn the louver section 180 end for end replace the screws and replace the front grille The textured face of the louver section must be facing toward the room side p Front grille Louver screws The direction of the heated or cooled air may be adjusted by removing and turning the louvers around sz 37 OFF VERTICAL 20 OFF VERTICAL Other Features Ventilation Control The ventilation control lever is located at the upper left side of the unit behind the front grille This knob is set to CLOSE at the factory When in this position the vent door is closed and only indoor air is cir culated by the air conditioner Switching the knob to OPEN opens the vent door to al
11. low outdoor air to enter the room However leaving the vent door at OPEN reduces heating or cooling effectiveness and increases operating costs Ventilation control lever Remote Control Remote controlling is available with the optional Class 2 Remote Controller and Interface kit See the Installation Instructions US STW PTAC 8 8 01 5 34 PM Page 4 Fan Cycle Switch The Fan Cycle Switch is located under the control panel behind the front grille This switch is set to CONT at the factory to provide continuous fan operation in cool or heat modes Leaving the switch at the CONT setting allows continuous circulation of room air and will keep the room temperature at stable condition If you want the fan to cycle on and off with the compressor or electrical heater set the switch to CYCLE E ras a ro 7 a a CEER Che Low OFF FAN lt 7 PUcooL WARMER COOLER o Knob ras Control panel tow EE EN AI gt ASIP gs o Low coo EN at i Fan cycle switch Freeze Protection Freeze Protection helps prevent plumbing damage due to sub freezing temperatures even if you have turned the mode selector switch to OFF The unit automatically turns on the heater and fan if the room temperature falls to about 46 F You do not have to do anything to activate the Freeze Protection It will work as long as power to the unit has
12. ls US STW PTAC 8 8 01 5 34 PM Page 11 F Product Information If you have problems or questions concerning your Air Conditioner you will need the following information Model and serial numbers are on the nameplate of the cabinet Model No Serial No Date of purchase Dealer s address Phone number 11 US STW PTAC 8 8 01 5 34 PM Page 12 P SANYO FISHER COMPANY In Canada A DIVISION OF SANYO NORTH AMERICA CORPORATION SANYO Canada Inc 21605 plummer Street Chatsworth CA 91311 U S A 300 Applewood Crescent Concord Ontario L4K 5C7 Canada e
13. not been interrupted p Care and Cleaning Tum off the air conditioner before cleaning Air Filters The air filters should be cleaned at least once every two weeks Clogged filters reduce cooling heating and air flow Keeping these filters clean will Decrease cost of operation e Save energy Prevent clogged heat exchanger coils e Reduce costly compressor problems To remove the air filters 2 air filters To clean the air filters e Vacuum off heavy dirt e Run water through the filters e Dry thoroughly before replacing To reinstall the air filters Do not operate the air conditioner without the filters in place If a filter becomes torn or damaged it should be replaced immediately Operating the unit without the fil ters in place or with damaged filters will allow dirt and dust to reach the indoor coil and reduce the efficiency of the unit Replacement filters STKO1AF are available from the deal er or installer Front Grille amp Wall Case Wash the front grille and wall case finish with mild soap or detergent and lukewarm water e US STW PTAC 8 8 01 5 34 PM Page 5 Control Panel The control panel is shipped with a protective plastic film This film can be left on or removed To clean use a damp cloth and mild detergent Outdoor Coil The coil on the outdoor side of the unit should be checked periodically and cleaned if clogged with dirt or soot from the atmosph
14. onditions to users service personnel or the appli 4 1 2 InstallatiOD ooooonnnnnnncoccccccccacncnoos 8 nee 4 2 For 265V Units oooococococcoccacanananancnononononononos 8 4 2 1 Preparation cc eeceeeeeeeeeeneeeeeeeeeee 8 a This symbol refers to a hazard or 4 2 2 InstallatiOD ooooonnnnnnocncnccccccncnanonos 8 AU unsafe practice which can result in 5 AIR LOUVERS a a as 9 severe personal injury or death 6 TEMPERATURE LIMITING ooooooo 9 7 REMOTE CONTROL o on 10 This symbol refers to a hazard or 8 FRONT DESK CONTROL 00 10 AN CAUTION unsafe aer acen al personal injury or product or prop PRODUCT INFORMATION 00000 11 erty damage 85164119653000 SANYO 2001 SANYO Electric Co Ltd Osaka Japan W US STW PTAC 8 8 01 5 34 PM Page 2 OPERATING INSTRUCTIONS p Installation Location We recommend that this air conditioner be installed properly by qualified installation technicians in accor dance 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 same as the voltage shown on the nameplate e Do not install this air conditioner where there are fumes or flam mable gases or in an extremely humid space such as a green house e Do not install the air conditioner where excessively high heat generating devices are placed As
15. ounting plate Electrical junction box US STW PTAC 8 8 01 5 34 PM Page 9 3 Attach the field supplied conduit to the bottom plate 4 Connect the power supply conductors to the Terminal block and the Grounding screw 5 Attach the cover plate E e q A q Terminal block Grounding screw Cover plate Bottom plate Conduit 6 Reinstall the front grille See Front Grille on page 3 p 5 AIR LOUVERS The direction of the heated or cooled air may be adjusted by removing and turning the louvers around To change the louver direction remove the front grille and 2 louver screws that hold the louvers in place Turn the louver section 180 end for end replace the screws and replace the front grille The textured face of the louver section must be facing toward the room side Front grille Louver screws 6 TEMPERATURE LIMITING The normal range of the thermostat control is approximately 55 F to 88 F The control range may be narrowed by the use of the Temperature Limiting screws located behind the control panel Repositioning the screw on the left will limit the maximum temperature about 3 7 F for each hole in a clockwise rotation the screw on the right will limit the minimum temperature when moved counter clockwise Limiting the maximum and minimum set tings prevents users from turning the controls
16. repair electrical parts and wiring Keep your fingers and clothing away from any moving parts Clean up the site after you finish remembering to check that no metal scraps or bits of wiring have been left inside the unit being serviced Tools Needed Phillips screwdriver Flat blade screwdriver Others Before starting the installation the power to the direct connect wiring should be set to OFF e Ventilate any enclosed areas when installing or testing the refrigeration system Escaped refrigerant gas on contact with fire or heat can produce dangerously toxic gas Confirm upon completing installation that no refrigerant gas is leaking If escaped gas comes in contact with a stove gas water heater electric room heater or other heat source it can produce dangerously toxic gas e US STW PTAC 8 8 01 5 34 PM Page 7 p 1 NAMES OF PARTS Rear grille louver Wall case Chassis Front grille ES A E Shipped with the chassis Check essential components list on chassis 2 WALL CASE AND REAR GRILLE 1 The STKOIWC wall case must be properly installed according to the instructions packed with the case 2 Remove the corrugated stiffener and the outdoor protective panel Use the slit in the outdoor panel as a grip and push out 3 Install the rear grille from the room side according to the instructions packed with the grille Protective panel Slit Stiffener
17. s by lift ing out and up 2 Cut the power cord approximately 6 from the Electrical J unction Box Cut Approx 6 im YN Y Power plug 3 Split and strip the wires as shown above 4 Install the Bottom Plate using the provided field supplied conduit and power supply conductors to the unit with screw B 5 Connect Power Supply wires to the stripped inner wires with the wire nuts 6 Dress the wiring inside the compartment and attach the cover plate with screw A 7 Reinstall the Front Grille Screw A 29 5 Electrical A gt de a iT junction box 4 _ Power cord gt lie Screw B Bottom plate Cover plate 4 2 For 265V Units All 265V units are direct connected and come with the cover plate junction box and bottom plate The conduit is field supplied by the installer 4 2 1 Preparation 1 The electrical rating marked on the previously installed air conditioner must be the same as the supply branch circuit 2 The unit provides for connection of 1 2 trade size electrical conduit and provision for connection to a wiring system in accordance with the National Electrical Code ANSI NFPA No 70 1993 4 2 2 Installation 1 Remove the front grille from the chassis by lifting out and up to clear mounting brackets See Front Grille on page 3 2 Remove the A screw and cover plate from the m
18. uous This causes the fan to blow room air even when the electrical heater is off The contin uous air flow provides better overall temperature control US STW PTAC 8 8 01 5 34 PM Page 6 INSTALLATION INSTRUCTIONS p IMPORTANT Please Read Before Starting This air conditioner meets strict safety and operating stan dards As the installer or service person it is an important part of your job to install or service the system so it oper ates safely and efficiently For safe installation and trouble free operation you must Carefully read this OWNER S MANUAL before installa tion and service Follow each installation or service step exactly as shown e Observe all local state and national electrical codes Pay close attention to all warning and caution notices given in this manual WARNING This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death in personal injury or product or property damage This symbol refers to a hazard or AE unsafe practice which can result If Necessary Get Help These instructions are all you need for most installation sites and maintenance conditions If you require help for a special problem contact our sales service outlet or your certified dealer for additional instructions SPECIAL PRECAUTIONS When Wiring ELECTRICAL SHOCK CAN CAUSE SEVERE PERSON AL INJURY OR DEATH ONLY A QUALIFIED EXPERI E

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