Sanyo CH2442 Installation Instructions Manual

Split system heat pump air conditioner

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Service manual (202 pages)

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Page 1 Room temperature * When air discharge chamber is installed. Units should be installed by licensed contractor according to local code requirements. SANYO FISHER COMPANY A DIVISION OF SANYO NORTH AMERICA CORPORATION 21605 Plummer Street Chatsworth, CA91311 1 1 1 1 1...
Page 2: Please Read Before Starting
Important Please Read Before Starting This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently. For safe installation and trouble-free operation, you must : Carefully read this instruction booklet before beginning.
Page 3: Table Of Contents
IMPORTANT Please Read Before Starting GENERAL ... 4 1-1. Tools Required for Installation (Not Supplied) 1-2. Accessories Supplied with Unit 1-3. Type of Copper Tube and Insulation Material 1-4. Additional Materials Required for Installation 1-5. Tubing Length SELECTING THE INSTALLATION SITE ... 10 Indoor Unit Outdoor Unit 2-1.
Page 4 HOW TO INSTALL THE WEEKLY TIMER (OPTIONAL PART) ... 65 8-1. Mounting Dimensions for Continuous Installation 8-2. When Using a Wall Box for Flush Mounting 8-3. Wiring Diagram 8-4. Test Run Setting 8-5. Memory Back Up Function for Power Failure Compensation HOW TO INSTALL THE SYSTEM CONTROLLER (OPTIONAL PART) ...
Page 5: General
1. GENERAL This booklet briefly outlines where and how to install the air conditioning system. Please read over the entire set of instructions for the indoor and outdoor units and make sure all accessory parts listed are with the system before beginning. 1-1.
Page 6 Table 1-1 XH (4-Way Air Discharge Semi-Concealed) Part Name Full-scale installation diagram Flare insulator Washer Insulating tape Hose band Packing Drain insulator Drain hose Drain hose adaptor Sealing putty Tube connector Table 1-2 KH (Wall-Mounted) Part Name Wall fixture *1 Insulator *1 Mounting plate *1 Tapping screw *1...
Page 7 Table 1-3 TH (Ceiling-Mounted) Part Name Special washer Drain insulator Flare insulator Drain hose adaptor Drain hose clamp Insulating tape Vinyl clamp Full-scale installation diagram Sealing putty Drain hose Tube connector Table1-4 UH (Concealed-Duct) Part Name Flare insulator Insulating tape Tapping screw TOTA4-10 Jumper cable* Hose band...
Page 8 Table 1-6 (Accessories for the Wired Remote Controller) Part Name Wired remote controller (comes with 7-7/8 in. wire) Machine screws 1 in. Wood screws Table 1-7 (Accessories for the Wireless Remote Controller) <RCS-SH80UA.WL> Part Name Operation controller Indicator section Wireless remote controller Wireless remote controller mounting cradle Batteries...
Page 9 Table 1-8 (Accessories for the Weekly Timer) Part Name Weekly timer Connecting wiring length 4 ft. Machine screws 1 in. Table 1-9 (Accessories for the System Controller) Part Name System controller Rubber bushing (7/8 in.) Screws for fixture (1-3/16 in.) Figure Q’ty Part Name...
Page 10: Tubing Length
If total tubing length becomes 100 to 165 ft., charge additional refrigerant (R22) by 0.48 oz./ft.. If total tubing length becomes 100 to 165 ft., charge additional refrigerant (R22) by 0.53 oz./ft.. INDOOR UNIT Elevation difference (H) Models CH2442 CH3642, CH4242 in. (mm) 1/4 (6.35) 3/8 (9.52) in. (mm) 3/4 (19.05)
Page 11: Selecting The Installation Site
2. SELECTING THE INSTALLATION SITE Indoor Unit AVOID: areas where leakage of flammable gas may be expected. places where large amounts of oil mist exist. direct sunlight. locations near inverter lamps which may affect performance of the unit. locations near heat sources which may affect performance of the unit.
Page 12: Outdoor Unit
Outdoor Unit AVOID: heat sources, exhaust fans, etc. (Fig. 2-1) damp, humid or uneven locations. choose a place as cool as possible. choose a place that is well ventilated and outside air temperature does not exceed maximum 115 F constantly. allow enough room around the unit for air intake/ exhaust and possible maintenance.
Page 13: Air Discharge Chamber For Top Discharge
The condenser pressure may drop because of strong wind, and the indoor unit may freeze. Recommended outer dimensions of wind shield (field supply) 11-13/16" 21-13/16" 1-7/32" 9-27/32" 5-5/32" 21-13/16" 1352_C_I Fig. 2-4 S4359146 Air discharge 0426_C_I 9-27/32" 5-5/32" 0936_C_I CH2442...
Page 14: Precautions When Installing In Heavy Snow Areas
2-3. Precautions When Installing in Heavy Snow Areas (1) The platform should be higher than the maximum. snow depth. (Fig. 2-5) (2) The two anchoring feet of the outdoor unit should be attached to the platform, and the platform should be installed beneath the air-intake side of the outdoor unit.
Page 15: How To Install The Indoor Unit
3. HOW TO INSTALL THE INDOOR UNIT 4-Way Air Discharge Semi-Concealed Type (XH Type) 1 1 1 1 1 3-1. Suspending the Indoor Unit This unit uses a drain pump. Use a carpenter’s level to check that the unit is level. 3-2.
Page 16: Placing The Unit Inside The Ceiling
3-3. Placing the Unit Inside the Ceiling (1) When placing the unit inside the ceiling, deter- mine the pitch of the suspension bolts using the supplied full-scale installation diagram. (Fig. 3-4) The size of the opening for the indoor unit can be confirmed by attaching the full-scale installation diagram beneath the unit.
Page 17: Installing The Drain Piping
3-4. Installing the Drain Piping (1) Prepare standard hard PVC pipe for the drain and use the supplied drain hose and hose band to 1 1 1 1 1 prevent water leaks. The PVC pipe must be purchased separately. The transparent part allows you to check drain- age.
Page 18: Checking The Drainage
3-5. Checking the Drainage After wiring and piping are completed, use the follow- ing procedure to check that the water will drain smoothly. For this, prepare a bucket and wiping cloth ready to catch and wipe up spilled water. Do not supply power to the unit until the tubing and wiring to the outdoor unit are completed.
Page 19: Before Installing The Ceiling Panel
Ceiling Panel 1 1 1 1 1 Never touch or attempt to move the air direction louver CAUTION by hand or you may damage the unit. Instead, use the remote control unit if you want to change the direction or air flow. 3-6.
Page 20: Installing The Ceiling Panel
3-7. Installing the Ceiling Panel (1) Lift the ceiling panel and position it to align the panel hook with the panel catch of the indoor unit. NOTE The ceiling panel must be mounted in the correct direction. Note that the 2 catches of the panel differ in size.
Page 21: Duct For Fresh Air
3-9. Duct for Fresh Air There is a duct connection part on sideface of the indoor unit. (Fig. 3-16) 1 1 1 1 1 Optional air-intake plenum (including duct connection box and flange) can be attached to the indoor unit. Air-intake plenum CMB-GSJ80U (XH1242, XH1842, XH2442)
Page 22 (e) Installing the ceiling panel Attach the ceiling panel to the chamber. Drawing the panel downwards sets the panel in position temporarily with the panel catch (at 2 locations). Remove the socket cover of the air-intake plenum and pass the 8P sockets through it. (Fix the panel lead wire to chamber side clamper.) (Fig.
Page 23: Wall-Mounted Type (Kh Type)
Wall-Mounted Type (KH Type) 3-10. Removing the Wall Fixture from the Unit KH2442 Remove and discard the set screws and take off the wall fixture. (Fig. 3-19) 2 2 2 2 2 3-11. Selecting and Making a Hole KH2442 (1) Tape the full-scale installation diagram on the wall at the location selected.
Page 24 KH3642 One hole is required for the air conditioner tubing, and may be either on the left or right side. (Also see sec- tion 3-14. Preparing the Indoor Side Tubing.) (1) Tape the full-scale installation diagram on the wall at the location selected. Make sure the unit is horizontal, using a level or tape measure to measure down from the ceiling.
Page 25: Installing The Wall Fixture Onto Wooden Or
3-12. Installing the Wall Fixture onto Wooden or Gypsum Wall KH2442 Confirm that the wall is strong enough to support the unit. a) If the Wall is Wooden 2 2 2 2 2 (1) Attach the wall fixture to the wall with the 9 screws provided.
Page 26: Removing The Casing To Install The Indoor Unit
3-13. Removing the Casing to Install the Indoor Unit KH2442 How to Remove the Casing (1) Remove the plastic cover. (Fig. 3-31) (2) Remove the clamp for the wiring connector. (Fig. 3-32) (3) Disconnect the wiring connector. (Fig. 3-33) (4) Set the flap in the horizontal position. (Fig. 3-34) (5) Remove the 3 screws.
Page 27: Preparing The Indoor Side Tubing
3-14. Preparing the Indoor Side Tubing KH2442 Tubing can be extended in 4 directions as shown in Fig. 3-35. Arrangement for Left Tubing 2 2 2 2 2 (a) Cut out the left tubing outlet. (Fig. 3-36) Arrangement for Right Tubing (a) Cut out the right tubing outlet using a hacksaw.
Page 28: Wiring Instructions
3-15. Wiring Instructions General Precautions on Wiring (1) Before wiring, confirm the rated voltage of the unit as shown on its name plate, then carry out the wiring closely following the wiring diagram. (2) Provide a power outlet to be used exclusively for each unit a power supply disconnect and circuit breaker for overcurrent protection should be provided in the exclusive line.
Page 29: Wiring Instructions For Inter-Unit Connections
3-16. Wiring Instructions for Inter-Unit Connections (a) Insert the inter-unit wiring (according to local codes) into the through-the-wall PVC pipe. Run the wiring toward the indoor side allowing approx. 5". to extend from the wall face. (Fig. 3-44) Never fix the wiring by any means before the indoor 2 2 2 2 2 CAUTION...
Page 30: Shaping The Tubing
3-17. Shaping the Tubing KH2442 (1) Shape the refrigerant tubing so that it can easily go into the hole. (Fig. 3-47) (2) Push the wiring, refrigerant tubing and drain hose through the hole in the wall. Adjust the indoor unit so it is securely seated on the wall fixture.
Page 31: Installing The Drain Hose
3-18. Installing the Drain Hose The drain hose should be slanted downward on the outdoor side. (Fig. 3-53) Never form a trap in the course of the hose. If the drain hose will run in the room, insulate* the hose so that chilled condensation will not damage 2 2 2 2 2 furniture or floors.
Page 32: Ceiling-Mounted Type (Th Type)
Ceiling-Mounted Type (TH Type) 3-19. Suspending the Indoor Unit (1) Place the full-scale diagram (supplied) on the ceiling at the spot where you want to install the indoor unit. Use a pencil to mark the drill holes. (Fig. 3-55). NOTE Since the diagram is made of paper, it may shrink or stretch slightly because of high temperature or humid- ity.
Page 33 (5) Before suspending the indoor unit, remove the 2 screws on the latch of the air-intake grilles, open the grilles, and remove them by pushing the claws of the hinges as shown in Fig. 3-59. Then remove both side panels sliding them along the unit toward the front after removing the two screws which fix them.
Page 34 Lift the indoor unit, and place it on the washers through the notches, so as to fix it in place. (Fig. 3-64) Tighten the two hexagonal nuts on each suspension bolt to suspend the indoor unit as shown in Fig. 3-65. NOTE A ceiling surface is not always level.
Page 35: Duct For Fresh Air
3-20. Duct for Fresh Air There is a duct connection port (knock-out hole) at the right-rear on the Panel Top of the indoor unit for drawing in fresh air. If it is necessary to draw in fresh air, remove the cover by knocking out and connect the duct to the indoor unit through the connection port.
Page 36: Required Minimum Space For Installation And Service
Concealed-Duct Type ( UH Type) 3-22. Required Minimum Space for Installation and Service This air conditioner is usually installed above the ceiling so that the indoor unit and ducts are not visible. Only the air intake and air outlet ports are visible from below.
Page 37: Suspending The Indoor Unit
3-23. Suspending the Indoor Unit Depending on the ceiling type: Insert suspension bolts as shown in Fig. 3-74 • Use existing ceiling supports or construct a • suitable support as shown in Fig. 3-75. It is important that you use extreme care in supporting the indoor unit inside the ceiling.
Page 38: Installing The Drain Piping
Fig. 3-78 shows an example of installation. Air outlet duct Air-outlet grille Ceiling material 3-24. Installing the Drain Piping (1) Prepare a standard hard PVC pipe for the drain and use the supplied hose band to prevent water leaks. The PVC pipe must be purchased separately. When doing this, leave a gap between the drain socket of the unit and the PVC pipe to allow the drainage to be checked.
Page 39: Checking The Drainage
CAUTION If it is necessary to increase the height of the drain pipe, the section directly after the connec- tion port can be raised a maximum of 19-11/16 in. Do not raise it any higher than 19-11/16 in., as this could result in water leaks. (Fig.
Page 40: Increasing The Fan Speed
3-26. Increasing the Fan Speed If external static pressure is too great (due to long extension of ducts, for example), the air flow volume may drop too low at each air outlet. This problem may be solved by increasing the fan speed using the following procedure: (1) Remove 4 screws on the electrical component box and remove the cover plate.
Page 41: How To Install The Outdoor Unit
4. HOW TO INSTALL THE OUTDOOR UNIT 4-1. Removing the Protective Spacer for Transportation Remove the packing skid from the bottom of unit and then remove the plastic spacer used to secure the compressor during transportation. (Fig. 4-1) Place the unit on a level concrete pad, block or equal and anchor.
Page 42: Electrical Wiring
5-2. Recommended Wire Length and Wire Diameter for Power Supply System Must follow LOCAL ELECTRICAL CODES for wiring. Outdoor Unit (A) Power Supply Model Name AWG #12 CH2442 Max. length 69 ft. AWG #12 CH3642 Max. length 69 ft. AWG #10 CH4242 Max.
Page 43: Wiring System Diagrams
5-3. Wiring System Diagrams (1) Basic wiring diagram for standard control Inter-unit power wiring Single phase 230/208V Inter-unit control wiring (Low voltage) Remote controller (Option) *Remote controller wirings are wire joint connection. NOTE (1) Refer to Section 5-2. “Recommended Wire Length and Wide Diameter for Power Supply System”...
Page 44 (2) Basic wiring diagram for group control This diagram shows when several units (max. 8) are controlled by a remote controller. In this case, a remote controller can be connected at any indoor unit. Indoor Unit Inter-unit power wiring single phase 230/208V Inter-unit control wiring...
Page 45: How To Connect Wiring To The Terminal
Loose wiring may cause the terminal to overheat or result in unit malfunction. A fire hazard may also exist. Therefore, ensure that all wiring is tightly connected. When connecting each power wire to the correspond- ing terminal, follow the instructions on “How to connect wiring to the terminal”...
Page 46: How To Install The Wired Remote Controller (Optional Part)
6. HOW TO INSTALL THE WIRED REMOTE CONTROLLER (OPTIONAL PART) 6-1. Installation site selection Install the remote controller at a height of between 3–5 ft. above the floor. Do not install the remote controller in a place where it will be exposed to direct sunlight or near a window or other place where it will be exposed to the outside air.
Page 47: Wired Remote Controller Installation
6-2. Wired Remote Controller Installation Do not supply power to the unit or try to operate it until the tubing and wiring to the outdoor unit is completed. Do not twist the control wiring with the power CAUTION wiring or run it in the same metal conduit, because this may cause malfunction.
Page 48 6-3. Basic Wiring Diagram Install wiring correctly CAUTION (incorrect wiring will damage the equipment). Group Standard control remote control Connection wiring for group control Wire joint Indoor unit Indoor unit Indoor unit No. 1 No. 2 No. 3 Inter-unit control wiring Outdoor unit : Ground (earth) Indoor...
Page 49 6-4. Wiring System Diagram for Group Control This diagram shows when several units (maximum of 8) are controlled by a remote controller (master unit). In this case, a remote controller can be connected at any indoor unit. Remote controller Connection wiring for group control Wire joint Indoor unit...
Page 50: Basic Wiring Diagram
6-5. Wiring System Diagram for Multiple Remote Control When Installing Multiple Remote Controllers This multiple remote controller system is used for operating the unit(s) at different positions. (A maximum of 2 remote controllers can be installed.) Setting method To execute this control, make the setting according to the following procedure.
Page 51: Explanation Of Alarm Messages
6-7. Explanation of Alarm Messages Possible Cause of Malfunction Remote controller is detecting • Serial error signal from indoor unit. commu- nication • Indoor unit is detecting error signal from the remote controller. errors (No serial communications signal) • Mis-setting Indoor unit is detecting error signal from outdoor unit.
Page 52 Possible Cause of Malfunction Thermistor Indoor thermistor is either open failure or damaged. Outdoor thermistor is either open or damaged. EEPROM (ICB of PCB) failure Fault with Protective device for comp. is comp. and its activated. circuit Possible cause of Malfunction Model setting of indoor unit is not matching the outdoor unit.
Page 53: How To Install The Wireless Remote Controller (Optional Part)
7. HOW TO INSTALL THE WIRELESS REMOTE CONTROLLER (OPTIONAL PART) Important When using this air conditioner (ECO multi system air conditioner) with the wireless remote controller it may sometimes be impossible to change the operation modes while other indoor unit is running. When this happens, a double beep tone sounds, (operation lamp) lights up, and the lamp) and...
Page 54: Room Temperature Sensor Setting
7-2. Room Temperature Sensor Setting The room temperature sensors are built into the indoor unit and the wireless remote controller. Either of these room temperature sensors can operate. The system is shipped from the factory set to the indoor unit sensor. To switch to the remote controller sensor, press the sensor switching button located inside the remote controller cover and check that A/C SENSOR on the LCD display panel goes out.
Page 55: Rcs-Sh80Ua. Wl
<RCS-SH80UA. WL> 4-Way Air Discharge Semi-concealed Type (XH Type) 1 1 1 1 1 7-5. Indicator section Installation Remove the ceiling panel and indicator cover and install the indicator section. (1) Remove the ceiling panel. (2) Remove the corner cover behind the mark sec- tion.
Page 56: Ceiling Mounted Type (Th Type)
Ceiling Mounted Type (TH Type) 7-7. Indicator Section Installation Remove the side panel to install the indicator section. (Fig. 7-8) (1) Remove the side panel. Open the air intake grille, remove the screw at one place and then remove the side panel by sliding it toward the front (arrow direction).
Page 57: Electrical Wiring
7-9. Electrical Wiring Indoor PCB Connection method (1) Connect W1 to the indoor PCB WL connector. (2) Connect W3 from the indicator section with W2 from the operating controller using the relay connector. 7-10. Test Run Switch Test run switch is located at operating control unit. Regarding the test run, please refer to section 12.
Page 58: Misoperation Alarm Indicators
7-11. Misoperation Alarm Indicators Alarm indicator lamps on the indoor unit indicate the error cause when the air conditioner fails to operate upon being switched on. The possible alarm indica- tions are given in Table 7-1. Fig.7-12 shows the location of the alarm lamps on the indoor unit. (See Table 7-1, Fig.
Page 59: Rcs-Bh80Ua.wa
<RCS-BH80UA.WA> CAUTION 7-12. Separate type Signal Receiving Unit Installation CAUTION 7 7 7 7 7 (WL) If local codes allow, this signal receving unit can be mounted using a conventional wall box for flush mounting. (1) Insert a minus driver into the gap under the signal receving unit and pry off the cover (Fig.
Page 60 When using the signal receiving unit on a wall with the front exposed, choose a wall surface that the signal receiving unit can be mounted on. (1) Insert a flat tip (minus) screwdriver into the slot on the lower side of the signal receiving unit and pry off the back case as shown in Fig.
Page 61: Electrical Wiring
7-13. Electrical Wiring Make correct wiring without CAUTION any mistakes (incorrect wiring will damage the equipment). Recommended wire diameter and allowable length for signal receiving unit wiring and its branch wiring: AWG #18, MAX 1,300 ft. Terminal board for indoor unit remote controller wiring Signal receiving unit wiring (field supply)
Page 62: Misoperation Alarm Indicators
7-15. Misoperation Alarm Indicators A blinking lamp for other than the signal receiving unit filter shows that a problem has occurred in the unit so make an inspection. (Refer to servicing information in the service manual, etc.) Also, if wired remote control- ler and dedicated service check lines (854-9-9536- 044-97: service use) are available, then detailed error information can be obtained by connecting to the...
Page 63 7-16. Basic Wiring Diagram Install wiring correctly CAUTION (incorrect wiring will damage the equipment). Group control Connection wiring for group control Terminal Indoor unit Indoor unit No. 1 No. 2 Inter-unit control wiring Outdoor unit : Ground (earth) 7 7 7 7 7 Wiring procedure Install the wiring according to the above wiring diagram.
Page 64 7-17. Wiring System Diagram for Group Control This diagram shows when several units (maximum of 8) are controlled by a signal receiving unit (master unit). In this case, a signal receiving unit can be connected at any indoor unit. Signal receiving unit Connection wiring for group control Wire joint...
Page 65: Basic Wiring Diagram
7-18. Wiring System Diagram for Multiple When Installing Multiple This multiple system is used for operating the unit(s) at different positions. (A maximum of 2 signal receiving unit can be installed.) Setting method To execute this control, make the setting according to the following procedure.
Page 66: How To Install The Weekly Timer (Optional Part)
8. HOW TO INSTALL THE WEEKLY TIMER (OPTIONAL PART) Do not supply power to the unit or try to operate it until the tubing and wiring to the outdoor unit is completed. 8-1. Mounting Dimensions for Continuous Installation For vertical continuous installation, the space between the weekly timer and the remote controller must be 1 in.
Page 67: Wiring Diagram
8-3. Wiring Diagram (For wiring, always use the supplied wires) Timer terminal Weekly timer Connection wiring (supplied) Layout The weekly timer and remote controller may be located, either one on the left or right sides. Wiring procedure Do the wiring according to the following procedure. Loosen the retaining screw of the lead wire of the weekly timer, remove the collar, and connect the suppplied connection wiring to the timer terminal...
Page 68: How To Install The System Controller (Optional Part)
9. HOW TO INSTALL THE SYSTEM CONTROLLER (OPTIONAL PART) Do not supply power to the unit or try to operate it until the tubing and wiring to the outdoor unit is completed. 9-1. System Controller Installation Do not twist the control wiring with the power CAUTION wiring or run it in the...
Page 69: Electrical Wiring
9-2. Electrical Wiring How to connect electrical wiring (1) Connect B1, B2 to indoor PCB CRV connector using accessary 2P connector. (*No polarity) Total wire legth is less than 985 ft. and size is AWG#18. (2) Connect B5, B6 to indoor unit 2P terminal base. (*No polarity).
Page 70: Address Switch Setting
9-3. Address Switch Setting Main/sub selection switch OFF: System controller operates as main controller. ON: System controller operates as sub-controller. ALL/ZONE mode selection switch ALL mode: All indoor units can be controlled by system controller ZONE 1, 2, 3, 4 mode: Indoor units in one of zone 1, 2, 3, or 4 can be controlled by system controller.
Page 71 Weekly timer input switches. System controller operation can be set when weekly timer activates (ON/OFF). System controller operation Timer OFF ON Timer ON OFF All ON No change Individual control All indoor units to of all indoor units to be permitted All OFF and all Ditto indoor units to be...
Page 72: Mode Setting
9-4. Mode Setting According to function of each system controller, set SW1 as Fig. 9-5. (1) Central control/Remote control mode Central control mode System controller is used as central control equip- ment. Individual setting by remote controller can be inhibitted by system controller Remote control mode System controller is used as remote controller.
Page 73: How To Perform Zone Registration
9-5. How to Perform Zone Registration To operate the system controller properly, zone registration is required after finishing the test run (and after setting all indoor unit addresses) using one of the following methods. (a) Zone registration using the remote controller (RCS-SH80UG) Refer to page 73 (b) Zone registration using the system controller (SHA-KC64UG) Refer to page 74...
Page 74 (a) Zone registration using the remote controller (RCS-SH80UG) (Determination of central address) In this case, after confirming which indoor unit is connected to the remote controller and that the air conditioner in the OFF state, you set the central addresses one at a time. If the system has no remote controller, connect a remote controller to the system temporarily.
Page 75 (b) Zone registration using the system controller (SHA-KC640G) In this case, you set all central addresses by system controller at once manually. (1) Press the ZONE time for more than 4 seconds. and CODE No. C1 will flash. (2) After confirming that CODE No. C1 is displayed, press the button.
Page 76 (c) Automatic zone registration using the system controller (SHA-KC64UG) (1) Press the buttons at the same ZONE time for more than 4 seconds. and CODE No. C1 will flash. (2) Select CODE. No. C2 by pressing ( ) button and press the C2 changes from flashing to ON state and automatic zone registration will start.
Page 77 How to check overlapping of central address No. (1) Press the ZONE time for more than 4 seconds. and CODE No. C1 will flash. (2) Select CODE. No. C3 by pressing ( ) button and press the C3 changes from flashing to ON state and will flash.
Page 78 ZONE registration table Indoor unit Central address ZONE GROUP address (UNIT No.) NOTE 1. Assign indoor unit addresses to the desired positions (central addresses) manually. 2. For group control, only the main indoor unit should be assigned. Sub indoor units cannot be assigned. Central Unit location ZONE GROUP...
Page 79: Connection With Other Equipments
9-6. Connection with Other Equipments System controller Input/output Terminal ON/OFF output ON/OFF Alarm output Potential tree A contact, static (relay output) Contact capacity DC 30V, 0.5A Output common All ON input ALL ON (+) All OFF input Pulse (photo compler input) ALL OFF (+) Contact capacity Input common...
Page 80: How To Process Tubing
10. HOW TO PROCESS TUBING The narrow tubing side is connected by flare nut, and the wide tubing side is connected by brazing. 10-1. Use of the Flaring Method Many of the conventional split system air conditioners employ the flaring method to connect refrigerant tubes which run between indoor and outdoor units.
Page 81: Precautions During Brazing
10-4. Precautions during Brazing Replace air inside the tube with nitrogen gas to prevent copper oxide film from forming during the brazing process. Do not allow the tubing to get too hot during the brazing process. The nitrogen gas inside the tubing may overheat, causing refrigerant system valves to become damaged.
Page 82: Taping The Tubes
10-7. Taping the Tubes (1) At this time, the refrigerant tubes (and electrical wiring if local codes permit) should be taped with armoring tape in 1 bundle. To prevent the con- densation from overflowing the drain pan, keep the drain hose separate from the refrigerant tubing.
Page 83: Air Purging
11. AIR PURGING Air and moisture in the refrigerant system may have undesirable effects as indicated below. pressure in the system rises operating current rises cooling (or heating) efficiency drops moisture in the refrigerant circuit may freeze and block capillary tubing water may lead to corrosion of parts in the refriger- ant system Therefore, the indoor unit and the tubing between the...
Page 84 To avoid nitrogen entering CAUTION the refrigerant system in a liquid state, do not use the nitrogen cylinder up side down. Use the cylinder in a vertical standing position. (Refer to the previous page.) (4) Do a leak test of all joints of the tubing (both indoor and outdoor) and both wide and narrow service valves.
Page 85 Charging additional refrigerant Charge additional refrigerant (calculated from the narrow tube length as shown in Sec. 1-5) using the wide tube service valve with the system in cooling operating mode. (Fig. 11-5) Use a balance to measure the refrigerant accu- rately.
Page 86: Test Run
12. TEST RUN 12-1. Preparing for Test Run Before attempting to start the air conditioner, check the following: (1) All loose matter is removed from the cabinet especially steel filings, bits of wire, and clips. (2) The control wiring is correctly connected and all electrical connections are tight.
Page 87: Pcb Setting
12-2. PCB Setting Setting of outdoor control PCB (A) Standard control (single outdoor unit) In case of single outdoor unit installation, even if in case of twin, triple or quartet type (2, 3 or 4 indoor units), no setting necessary. Keep factory shipment state (R.C.
Page 88: Address Setting Method
12-3. R.C. Address Setting Method Outdoor unit R.C. address setting method In case of group control or central control, set the R.C. address to 1, 2, 3, ... according to the No. of outdoor units. Refrigerant circuit address (factory setting = 0) Refrigerant circuit address (black) : S2 Refrigerant circuit address...
Page 89: Automatic Address Setting Method
12-4. Automatic Address Setting Method — For group control and central control with multiple outdoor units — Carry out automatic address setting with the remote controller. (1) All auto. address operation Press the the same time for more than 4 seconds. Press the button after confirming the CODE No.
Page 90: Test Run Procedure
12-6. Test Run Procedure Start Multiple remote control? Recheck the test items before test operation. Check the indoor and outdoor unit combination (wiring). (Sec. 5-3) Single type? (One indoor unit and one remote controller for one outdoor unit) Group control for multiple outdoor units? Central control...
Page 91: Items To Check Prior To Test Run
12-7. 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. (2) Fully open the outdoor service valve after making the leak inspection of field connected tubing, vacuuming, and gas charging if necessary.
Page 92: The Main Alarms Of Mis-Wiring & Mis-Setting
12-8. The Main Alarms of Mis-wiring & Mis-setting Remote controller display • In case of individual remote control Nothing • Remote controller not properly connected. displayed • Power supply not ON. • Remote controller not properly connected. • Wiring connection fault of indoor/outdoor units •...
Page 93 Half OPEN Measuring pressure and gas charging Narrow tube service valve O-ring O-ring Valve cap Stem 0989_C_I 2-Way Valve CH2442 Narrow Tube Service Valve (3-Way) O-ring Stem 0546_C_I 0547_C_I 0548_C_I Valve cap Stem 1372_C_I 3-Way Valve CH3642, CH4242...
Page 94: Pump Down
13. PUMP DOWN Pump down means collecting all refrigerant gas in the system back into the outdoor unit without losing ant of the gas. Pump down is used when the unit is to be moved or before servicing the refrigerant circuit. Pump down procedure Be sure to carry out pump CAUTION...

This manual is also suitable for:

Th2442 Ch3642 Kh2442 Th3642 Kh3642 Th4242 ... Show all

Sanyo CH2442 Installation Instructions Manual

Please Read before Starting

1 General

2 Selecting the Installation Site

3 How to Install the Indoor Unit

4 Way Air Discharge Semi-Concealed Type (XH Type)

How to Install the Outdoor Unit

Electrical Wiring

How to Install the Wired Remote Controller (Optional Part)

How to Install the Wireless Remote Controller (Optional Part)

8 How to Install the Weekly Timer (Optional Part)

9 How to Install the System Controller (Optional Part)

10 How to Process Tubing

11 Air Purging

12 Test Run

13 Pump down

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