Sanyo UH2442 - Manuals

6 S4359146 Table 1-3 TH (Ceiling-Mounted) Part Name Figure Q’ty Remarks Special washer 4 Drain insulator 1 Flare insulator 1 Set Drain hose adaptor 1 Drain hose clamp 4 Insulating tape 2 1 Vinyl clamp 2 Full-scale installation 1 diagram Sealing putty 1 Drain hose 1 Tube connector 1 For temporarily s...

10 S4359146 Ceiling-Mounted Type 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...

12 S4359146 Air discharge 0426_C_I Recommended outer dimensions of wind shield (field supply) 0936_C_I 3 - ø1-9/16" hole 6 - ø15/64" hole 9-27/32" 21-5/8" 15/16" 5-3/16" 22-7/16" 1/2" 23-15/32" 21-13/16" 5-5/32" 9-27/32" 9-27/32" 1-7/32" 21-13/...

13 S4359146 9 9 9 9 9 SC 1 1 1 1 1 X 8 8 8 8 8 WT 7 7 7 7 7 RC (WL) 5 5 5 5 5 C 4 4 4 4 4 U 3 3 3 3 3 T 2 2 2 2 2 K 6 6 6 6 6 RC (WD) 0937_C_I Without snow-proof ducting(Low platform) Snow-proofducting(High platform) In regions with snow fall, the outdoor unit should beprovided with a platform and s...

1 1 1 1 1 X 14 S4359146 Fig. 3-2 Fig. 3-1 Hole-in-anchorHole-in-plug Concrete Insert Suspension bolt (M10 or 3/8")(field supply) 0038_T_I Type Length 3. HOW TO INSTALL THE INDOOR UNIT ■ 4-Way Air Discharge Semi-Concealed Type(XH Type) 3-1. Suspending the Indoor Unit This unit uses a drain pump. ...

1 1 1 1 1 X 16 S4359146 N O T E CAUTION CAUTION Fig. 3-11 Support pieces 0050_X_I Fig. 3-10 Upward gradient 0049_X_I Fig. 3-9 Fig. 3-8 Air bleeder 0047_X_I 0197_X_I Drain insulator (supplied) Fig. 3-7 Drain hose(supplied) Packing(supplied) Transparent part for checking drainage Hose band(supplied) D...

1 1 1 1 1 X 18 S4359146 Fig. 3-13 Fig. 3-14 Ceiling panel Air intake grille Latch 0149_X_I Screw Safety string Air filter 0150_X_I 45° ■ Ceiling Panel Never touch or attempt to move the air direction louver by hand or you may damage the unit. Instead, use the remote control unit if you want to chang...

2 2 2 2 2 K 22 S4359146 Fig. 3-21 Fig. 3-20 Hole should be made at a slight downward slant to the outdoor side. N O T E Indoorside Outdoorside 0066_T_I Fig. 3-19 Tape F u l l - s c a l e i n sta l l a t i o n d i a g r am 0940_T_I Cut at slight angle PVC pipe (locally purchased) 0941_T_I Plastic cov...

2 2 2 2 2 K 25 S4359146 3-13. Removing the Casing to Install the Indoor Unit 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. (Fi...

2 2 2 2 2 K 26 S4359146 3-14. Preparing the Indoor Side Tubing Tubing can be extended in 4 directions as shown in Fig. 3-35. Arrangement for Left Tubing (a) Cut out the left tubing outlet. (Fig. 3-36) Arrangement for Right Tubing (a) Cut out the right tubing outlet using a hacksaw. (Fig. 3-37) Arran...

2 2 2 2 2 K 29 S4359146 3-17. Shaping the Tubing (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. (3) Carefull...

2 2 2 2 2 K 30 S4359146 3-18. Installing the Drain Hose (a) The drain hose should be slanted downward on the outdoor side. (Fig. 3-53) (b) Never form a trap in the course of the hose. (c) If the drain hose will run in the room, insulate* the hose so that chilled condensation will not damage furnitur...

3 3 3 3 3 T 32 S4359146 (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 remov...

3 3 3 3 3 T 33 S4359146 (b) Lift the indoor unit, and place it on the washers through the notches, so as to fix it in place. (Fig. 3-64) (c) Tighten the two hexagonal nuts on each suspension bolt to suspend the indoor unit as shown in Fig. 3-65. N O T E A ceiling surface is not always level. Please ...

3 3 3 3 3 T 34 S4359146 Fig. 3-68 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 uni...

4 4 4 4 4 U S4359146 35 ■ Concealed-Duct Type ( UH Type) 3-22. Required Minimum Space for Installation and Service ● This air conditioner is usually installed above theceiling so that the indoor unit and ducts are notvisible. Only the air intake and air outlet ports arevisible from below. ● The mini...

4 4 4 4 4 U S4359146 37 ● Fig. 3-78 shows an example of installation. 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 ...

4 4 4 4 4 U S4359146 39 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 s...

40 S4359146 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 eq...

42 S4359146 5-3. Wiring System Diagrams (1) Basic wiring diagram for standard control 1 2 U1 U2 1 2 1 2 1 2 1 2 G G L1 L2 G Indoor Unit Inter-unitpower wiringSingle phase230/208V Inter-unitcontrol wiring(Low voltage) Remote controller Outdoor Unit Ground Ground (Option) B D A 2085_M_I Power supply S...

45 S4359146 6. HOW TO INSTALL THE WIRED REMOTE CONTROLLER (OPTIONAL PART) Fig. 6-2 6 6 6 6 6 RC (WD) 1987_C_I 3-21/32 in. or more Spacer Wall 3/32 in. (amount offset from JIS box) Hole for routing remote control cable 3-17/32 in. or more 4-29/32 in. or more 4-29/32 in. or more (from wall) (during co...

47 S4359146 6-3. Basic Wiring Diagram Install wiring correctly (incorrect wiring will damage the equipment). CAUTION ● Use shielded wires for inter-unit control wiring and ground the shield on both sides. (Fig. 6-5) Otherwise misoperation because of noise may occur. ● Wiring procedure Install the wi...

49 S4359146 6-5. Wiring System Diagram for Multiple Remote Control ■ When Installing Multiple Remote Controllers This multiple remote controller system is used foroperating the unit(s) at different positions. (A maximumof 2 remote controllers can be installed.) ● Setting method To execute this contr...

50 S4359146 6-7. Explanation of Alarm Messages 6 6 6 6 6 RC (WD) When using group control, main indoor unit address setting is duplicated. (For single heat pump type.) Error in Auto. address setting. (No. or capacity of judged indoor unit is small.) Error in Auto. address setting. (No. or capacity o...

51 S4359146 6 6 6 6 6 RC (WD) Thermistorfailure Fault withcomp. and itscircuit Possible Cause of Malfunction Indoor thermistor is either openor damaged. Outdoor thermistor is eitheropen or damaged. Protective device for comp. isactivated. EEPROM (ICB of PCB) failure Model setting of indoor unit is n...

7 7 7 7 7 RC (WL) 52 S4359146 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 runn...

7 7 7 7 7 RC (WL) 53 S4359146 7-2. Room Temperature Sensor Setting The room temperature sensors are built into the indoorunit and the wireless remote controller. Either of theseroom temperature sensors can operate.The system is shipped from the factory set to theindoor unit sensor. To switch to the ...

7 7 7 7 7 RC (WL) 59 S4359146 ● When using the signal receiving unit on a wall withthe front exposed, choose a wall surface that thesignal receiving unit can be mounted on. (1) Insert a flat tip (minus) screwdriver into the slot onthe lower side of the signal receiving unit and pryoff the back case ...

7 7 7 7 7 RC (WL) 60 S4359146 0 0 0 0 0 WT 7-13. Electrical Wiring Make correct wiring without 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. 1. Peel away 9/16 ...

7 7 7 7 7 RC (WL) 61 S4359146 0 0 0 0 0 WT 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 contr...

7 7 7 7 7 RC (WL) 62 S4359146 7-16. Basic Wiring Diagram Install wiring correctly (incorrect wiring will damage the equipment). CAUTION ● Use shielded wires for inter-unit control wiring and ground the shield on both sides. (Fig. 7-25) Otherwise misoperation because of noise may occur. ● Wiring proc...

7 7 7 7 7 RC (WL) 64 S4359146 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 accordi...

7 7 7 7 7 RC (WL) 65 S4359146 8. HOW TO INSTALL THE WEEKLY TIMER (OPTIONAL PART) Do not supply power to theunit or try to operate it untilthe tubing and wiring to theoutdoor unit is completed. 8-1. Mounting Dimensions for Continuous Installation ● For vertical continuous installation, the space betw...

7 7 7 7 7 RC (WL) 66 S4359146 8-4. Test Run Setting ● After installation, check the output state of the weekly timer with the “FORCED OPR.” switch (OFF to ON) located on the rear side of its PCB. After confirming normal operation, turn the “FORCED OPR.” switch back to OFF without fail. 8-5. Memory B...

9 9 9 9 9 SC 67 S4359146 9. HOW TO INSTALL THE SYSTEM CONTROLLER (OPTIONAL PART) Fig. 9-1 2041_C_I Systemcontroller Switch box(no cover) M4 × 1-3/16 in. Screws (2) Flat-topScrew Back case Gap Coin 2042_M_I Gap Fig. 9-2 Do not supply power to theunit or try to operate it untilthe tubing and wiring to...

9 9 9 9 9 SC 69 S4359146 9-3. Address Switch Setting 2046_M_I 1 ON Main/sub selection switch OFF: System controller operates as main controller.ON: System controller operates as sub-controller. SW1 ALL/ZONE mode selection switch ALL mode:All indoor units can be controlled by system controllerZONE 1,...

9 9 9 9 9 SC 70 S4359146 2047_M_I 1 ON Weekly timer input switches. System controller operation can be set when weekly timer activates (ON/OFF). SW2 Incase of Remote control mode, use 1 or 2 . In case of ZONE 1, 2, 3, 4 mode, ALL, all indoor units means one of ZONE 1, 2, 3, 4.* 1 : 1 (Central contro...

9 9 9 9 9 SC 72 S4359146 9-5. How to Perform Zone Registration To operate the system controller properly, zone registration is required after finishing the test run (and aftersetting all indoor unit addresses) using one of the following methods. (a) Zone registration using the remote controller (RCS...

9 9 9 9 9 SC 77 S4359146 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. ZONE GROUP Central address Indoor unit address (UNIT No.) Indoor unit address ...

9 9 9 9 9 SC 78 S4359146 9-6. Connection with Other Equipments 2055_M_I ON/OFF Digital input Alarm Output common CPEV AWG#16 ALL ON (+) CX TX ALL OFF (+) Input common COM +24 CPEV AWG#16 Name Digital input/output terminals Input/output item Control input Status output ON/OFF output Alarm outputPoten...

79 S4359146 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 in...

81 S4359146 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. (2) Wrap th...

5 5 5 5 5 C 83 S4359146 CAUTION To avoid nitrogen entering 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)...

85 S4359146 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 connection...

86 S4359146 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. address is set in “...

87 S4359146 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. (“0” when shipped from factory) 1 ON ON side OFF side 2 0 R.C. address R.C. address R.C. add...

91 S4359146 12-10. The Main Alarms of Power Supply Troubles Cause Remote controller display Outdoor protection Power supply voltage is abnormal. P2 (More than 260 V or less than 160 V between L and N phase) Negative phase or defective phase P5 Compressor contactor (Mg SW) is chattering. H18 12-9. Th...

92 S4359146 ■ Basic Functions of the Service Valves 0549_C_I 0550_C_I 0550_C_I Narrow tube service valve Wide tube service valve 0554_C_I Service port (B) 0546_C_I O-ring Stem 0547_C_I Action Narrow Tube Service Wide Tube Service Valve (3-Way) Valve (Ball Valve) CLOSED CLOSED Shipping and air purgin...