Sanyo CH4242 User Manual Page 1

Model CombinationsCombine indoor and outdoor units only as listed below.Indoor Units and Outdoor UnitsIndoor Units Type4-Way Air DischargeSemi-Conceal

9S435914699999SC11111X88888WT77777RC(WL)55555C44444U33333T22222K66666RC(WD)1-5. Tubing Length● Refrigerant tubing between the indoor andoutdoor units

10S4359146Ceiling-Mounted Type2. SELECTING THE INSTALLATION SITE Indoor UnitAVOID:● areas where leakage of flammable gas may beexpected.● places whe

11S435914699999SC11111X88888WT77777RC(WL)55555C44444U33333T22222K66666RC(WD)Out-doorunitHeat sourceHot airExhaust fan0591_C_I Outdoor UnitAVOID:● hea

12S4359146Air discharge0426_C_IRecommended outer dimensions of wind shield(field supply)0936_C_I3 - ø1-9/16" hole6 - ø15/64" hole9-27/32&quo

13S435914699999SC11111X88888WT77777RC(WL)55555C44444U33333T22222K66666RC(WD)0937_C_IWithout snow-proof ducting(Low platform)Snow-proofducting(High pla

11111X14S4359146Fig. 3-2Fig. 3-1Hole-in-anchorHole-in-plugConcrete InsertSuspension bolt (M10 or 3/8")(field supply)0038_T_ITypeLength3. HOW TO I

11111X15S43591463-3. Placing the Unit Inside the Ceiling(1) When placing the unit inside the ceiling, deter-mine the pitch of the suspension bolts usi

11111X16S4359146NOTECAUTIONCAUTIONFig. 3-11Support pieces0050_X_IFig. 3-10Upward gradient0049_X_IFig. 3-9Fig. 3-8Air bleeder0047_X_I0197_X_IDr

11111X17S43591463-5. Checking the DrainageAfter wiring and piping are completed, use the follow-ing procedure to check that the water will drainsmooth

11111X18S4359146Fig. 3-13Fig. 3-14Ceiling panelAir intake grilleLatch0149_X_IScrewSafety stringAir filter0150_X_I45° Ceiling PanelNever touch or atte

Please Read Before StartingThis air conditioning system meets strict safety andoperating standards. As the installer or service person, itis an import

11111X19S43591463-7. Installing the Ceiling Panel(1) Lift the ceiling panel and position it to align thepanel hook with the panel catch of the indoor

11111X20S4359146(1) Accessories● Check that the following parts are in the box when unpacking.3-9. Duct for Fresh Air● There is a duct connection part

11111X21S4359146(e) Installing the ceiling panel● Attach the ceiling panel to the chamber.Drawing the panel downwards sets the panel inposition tempor

22222K22S4359146Fig. 3-21Fig. 3-20Hole should be made at a slight downward slant to theoutdoor side.NOTEIndoorsideOutdoorside0066_T_IFig. 3-19TapeFull

22222K23S4359146One hole is required for the air conditioner tubing, andmay be either on the left or right side. (Also see sec-tion 3-14. Preparing th

22222K24S43591463-12. Installing the Wall Fixture onto Wooden orGypsum WallConfirm that the wall is strong enough to support the unit.a) If the Wall i

22222K25S43591463-13.Removing the Casing to Install the Indoor UnitHow to Remove the Casing(1) Remove the plastic cover. (Fig. 3-31)(2) Remove the cla

22222K26S43591463-14. Preparing the Indoor Side TubingTubing can be extended in 4 directions as shown inFig. 3-35.Arrangement for Left Tubing(a) Cut o

22222K27S43591463-15. Wiring InstructionsGeneral Precautions on Wiring(1) Before wiring, confirm the rated voltage of theunit as shown on its name pla

22222K28S43591463-16.Wiring Instructions for Inter-Unit Connections(a) Insert the inter-unit wiring (according to localcodes) into the through-the-wal

PageCONTENTSIMPORTANTPlease Read Before Starting1. GENERAL ... 41-1. Tools Required fo

22222K29S43591463-17. Shaping the Tubing(1) Shape the refrigerant tubing so that it can easilygo into the hole. (Fig. 3-47)(2) Push the wiring, refrig

22222K30S43591463-18. Installing the Drain Hose(a) The drain hose should be slanted downward onthe outdoor side. (Fig. 3-53)(b) Never form a trap in t

33333T31S4359146 Ceiling-Mounted Type (TH Type)3-19. Suspending the Indoor Unit(1) Place the full-scale diagram (supplied) on theceiling at the spot

33333T32S4359146(5) Before suspending the indoor unit, remove the 2screws on the latch of the air-intake grilles, openthe grilles, and remove them by

33333T33S4359146(b) Lift the indoor unit, and place it on thewashers through the notches, so as to fix itin place. (Fig. 3-64)(c) Tighten the two hexa

33333T34S4359146Fig. 3-683-20. Duct for Fresh AirThere is a duct connection port (knock-out hole) at theright-rear on the Panel Top of the indoor unit

44444US435914635 Concealed-Duct Type ( UH Type)3-22. Required Minimum Space forInstallation and Service● This air conditioner is usually installed ab

44444U36S43591463-23. Suspending the Indoor UnitDepending on the ceiling type:• Insert suspension bolts as shown in Fig. 3-74or• Use existing ceiling

44444US435914637●Fig. 3-78 shows an example of installation.3-24. Installing the Drain Piping(1) Prepare a standard hard PVC pipe for the drainand use

44444U38S4359146● Do not install an airbleeder as this maycause water to sprayfrom the drain pipeoutlet. (Fig. 3-81)●If it is necessary to increase th

Page8. HOW TO INSTALL THE WEEKLY TIMER(OPTIONAL PART) ... 658-1. Mounting Dimensions for Continuous In

44444US4359146393-26. Increasing the Fan SpeedIf external static pressure is too great (due to longextension of ducts, for example), the air flow volu

40S43591464. HOW TO INSTALL THE OUTDOOR UNIT4-1. Removing the Protective Spacer forTransportationRemove the packing skid from the bottom of unit andth

41S43591465. ELECTRICAL WIRING5-1. General Precautions on Wiring(1) Before wiring, confirm the rated voltage of theunit as shown on its nameplate, the

42S43591465-3. Wiring System Diagrams(1) Basic wiring diagram for standard control12U1U212121212G GL1L2GIndoor UnitInter-unitpower wiringSingle phase

43S4359146(2) Basic wiring diagram for group controlThis diagram shows when several units (max. 8) arecontrolled by a remote controller. In this case,

44S4359146Loose wiring may cause theterminal to overheat or resultin unit malfunction. A firehazard may also exist.Therefore, ensure that allwiring is

45S43591466.HOW TO INSTALL THE WIRED REMOTE CONTROLLER(OPTIONAL PART)Fig. 6-266666RC(WD)1987_C_I3-21/32 in. or moreSpacerWall3/32 in.(amount offset fr

46S4359146Fig. 6-36-2. Wired Remote Controller Installation● Do not supply power tothe unit or try to operate ituntil the tubing andwiring to the ou

47S43591466-3. Basic Wiring DiagramInstall wiring correctly(incorrect wiring will damagethe equipment).CAUTION● Use shielded wires for inter-unit cont

48S43591466-4. Wiring System Diagram for Group ControlThis diagram shows when several units (maximum of8) are controlled by a remote controller (maste

4S43591461. GENERALThis booklet briefly outlines where and how to installthe air conditioning system. Please read over the entireset of instructions f

49S43591466-5. Wiring System Diagram for Multiple RemoteControl When Installing Multiple Remote ControllersThis multiple remote controller system is

50S43591466-7. Explanation of Alarm Messages66666RC(WD)When using group control, main indoor unit address setting is duplicated.(For single heat pump

51S435914666666RC(WD)ThermistorfailureFault withcomp. and itscircuitPossible Cause of MalfunctionIndoor thermistor is either openor damaged.Outdoor th

77777RC(WL)52S43591467. HOW TO INSTALL THE WIRELESS REMOTE CONTROLLER(OPTIONAL PART)ImportantWhen using this air conditioner (ECO multi system aircond

77777RC(WL)53S43591467-2. Room Temperature Sensor SettingThe room temperature sensors are built into the indoorunit and the wireless remote controller

77777RC(WL)54S4359146<RCS-SH80UA. WL> 4-Way Air Discharge Semi-concealed Type(XH Type)7-5. Indicator section Installation● Remove the ceiling p

77777RC(WL)55S4359146Cover ACover APanelIndicator sectionSide panel1536_T_I Indicator sectionCover B(Not used when the indicator section is installed.

77777RC(WL)56S43591467-9. Electrical WiringConnection method(1) Connect W1 to the indoor PCB WL connector.(2) Connect W3 from the indicator section wi

77777RC(WL)57S43591467-11. Misoperation Alarm IndicatorsAlarm indicator lamps on the indoor unit indicate theerror cause when the air conditioner fail

77777RC(WL)58S4359146<RCS-BH80UA.WA>● If the signal receiving unitis installed near rapid-start type or inverter typefluorescent lamp (neitheron

5S435914699999SC11111X88888WT77777RC(WL)55555C44444U33333T22222K66666RC(WD)Table 1-1 XH (4-Way Air Discharge Semi-Concealed)Part Name FigureQ’ty Rema

77777RC(WL)59S4359146● When using the signal receiving unit on a wall withthe front exposed, choose a wall surface that thesignal receiving unit can b

77777RC(WL)60S435914600000WT7-13. Electrical WiringMake correct wiring withoutany mistakes (incorrectwiring will damage theequipment).● Recommended wi

77777RC(WL)61S435914600000WT7-15. Misoperation Alarm IndicatorsA blinking lamp for other than the signal receiving unitfilter shows that a problem has

77777RC(WL)62S43591467-16. Basic Wiring DiagramInstall wiring correctly(incorrect wiring will damagethe equipment).CAUTION● Use shielded wires for int

77777RC(WL)63S43591467-17. Wiring System Diagram for Group ControlThis diagram shows when several units (maximum of8) are controlled by a signal recei

77777RC(WL)64S43591467-18. Wiring System Diagram for Multiple When Installing MultipleThis multiple system is used for operating the unit(s) atdiffer

77777RC(WL)65S43591468.HOW TO INSTALL THE WEEKLY TIMER(OPTIONAL PART)Do not supply power to theunit or try to operate it untilthe tubing and wiring to

77777RC(WL)66S43591468-4. Test Run Setting● After installation, check the output state of theweekly timer with the “FORCED OPR.” switch(OFF to ON) loc

99999SC67S43591469.HOW TO INSTALL THE SYSTEM CONTROLLER(OPTIONAL PART)Fig. 9-12041_C_ISystemcontrollerSwitch box(no cover)M4 × 1-3/16 in.Screws (2)Fla

99999SC68S43591469-2. Electrical WiringB1Indoor unit PCBCRV(CN91: WHT)2P terminal baseIndoor unitSystem controllerAccessary connectorWire joint connec

6S4359146Table 1-3 TH (Ceiling-Mounted)Part Name Figure Q’ty RemarksSpecial washer4Drain insulator 1Flare insulator1 SetDrain hose adaptor 1Drain hose

99999SC69S43591469-3. Address Switch Setting2046_M_I1ONMain/sub selection switchOFF: System controller operates as main controller.ON: System controll

99999SC70S43591462047_M_I1ONWeekly timer input switches.System controller operation can be set when weekly timer activates (ON/OFF).SW2Incase of Remot

99999SC71S43591469-4. Mode SettingAccording to function of each system controller, setSW1 as Fig. 9-5.(1) Central control/Remote control mode● Central

99999SC72S43591469-5. How to Perform Zone RegistrationTo operate the system controller properly, zone registration is required after finishing the tes

99999SC73S4359146(a) Zone registration using the remote controller(RCS-SH80UG)(Determination of central address)● In this case, after confirming which

99999SC74S4359146(b) Zone registration using the system controller(SHA-KC640G)● In this case, you set all central addresses bysystem controller at onc

99999SC75S4359146(c) Automatic zone registration using the systemcontroller (SHA-KC64UG)(1) Press the and ZONE buttons at the sametime for more than

99999SC76S4359146 How to check overlapping of central address No.(1) Press the and ZONE buttons at the sametime for more than 4 seconds. and CODE No

99999SC77S4359146NOTE 1. Assign indoor unit addresses to the desired positions (central addresses)manually.2. For group control, only the main indoor

99999SC78S43591469-6. Connection with Other Equipments2055_M_ION/OFFDigital inputAlarmOutput commonCPEVAWG#16ALL ON (+)CXTXALL OFF (+)Input commonCOM+

7S435914699999SC11111X88888WT77777RC(WL)55555C44444U33333T22222K66666RC(WD)Table 1-6 (Accessories for the Wired Remote Controller)Part Name FigureQ’t

79S435914610. HOW TO PROCESS TUBINGThe narrow tubing side is connected by flare nut, andthe wide tubing side is connected by brazing.10-1. Use of the

80S435914610-4. Precautions during Brazing● Replace air inside the tube with nitrogen gas toprevent copper oxide film from forming during thebrazing p

81S435914610-7. Taping the Tubes(1) At this time, the refrigerant tubes (and electricalwiring if local codes permit) should be taped witharmoring tape

55555C82S435914611. AIR PURGINGAir and moisture in the refrigerant system may haveundesirable effects as indicated below.● pressure in the system rise

55555C83S4359146CAUTIONTo avoid nitrogen enteringthe refrigerant system in aliquid state, do not use thenitrogen cylinder up sidedown. Use the cylinde

55555C84S4359146Charging additional refrigerant● Charge additional refrigerant (calculated from thenarrow tube length as shown in Sec. 1-5) using the

85S435914612. TEST RUN12-1. Preparing for Test Run● Before attempting to start the air conditioner,check the following:(1) All loose matter is removed

86S435914612-2. PCB Setting● Setting of outdoor control PCB(A) Standard control (single outdoor unit)In case of single outdoor unit installation, even

87S435914612-3. R.C. Address Setting MethodOutdoor unit R.C. address setting methodIn case of group control or central control, set the R.C. address t

88S435914612-4. Automatic Address Setting Method— For group control and central control with multipleoutdoor units —Carry out automatic address settin

8S4359146Table 1-8 (Accessories for the Weekly Timer)Part Name FigureQ’tyPart Name FigureQ’tyWeekly timer 1 Wood screws 21 Spacers 22 Clampers 2Table

89S435914612-6. Test Run Procedure1) One of CN006 of all linked outdoor units shold be short.2) In case of using system controller, zone registration

90S435914612-7. Items to Check Prior to Test Run(1) Turn on the power supply switch more than 5 hours before in order to charge the crank case heater.

91S435914612-10. The Main Alarms of Power Supply TroublesCause Remote controller displayOutdoor protection Power supply voltage is abnormal. P2(More

92S4359146 Basic Functions of the Service Valves0549_C_I0550_C_I0550_C_INarrow tube service valve Wide tube service valve0554_C_IService port (B)0546

93S435914613. PUMP DOWNPump down means collecting all refrigerant gas in thesystem back into the outdoor unit without losing ant ofthe gas. Pump down