Sanyo CMH1972A Installation Instructions Manual Download Page 1 | Manualshive

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INSTALLATION INSTRUCTIONS

CMH1972A
CMH2472A
CMH3172A

(II-852-6-4190-507-00-0)

APPENDIX A

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Summary of Contents for CMH1972A

Page 1: ...INSTALLATION INSTRUCTIONS CMH1972A CMH2472A CMH3172A II 852 6 4190 507 00 0 APPENDIX A A 1 ...

Page 2: ...Diameter 5 3 Wiring System Diagram 5 4 How to Connect Wiring to the Terminal 5 5 Wiring Instructions for the Outdoor Unit 6 TEST RUN 25 7 CONNECTING A HOME AUTOMATION DEVICE 26 8 INSTALLATION CHECK SHEET 26 85264190507000 SANYO 2010 SANYO North America Corporation In Canada Commercial Solutions Division SANYO Canada Inc 2055 Sanyo Ave San Diego 201 Creditview Road Woodbridge CA 92154 U S A Ontario...

Page 3: ...Be careful when picking up and moving the indoor and out door units Get a partner to help and bend your knees when lifting to reduce strain on your back Sharp edges or thin alu minum fins on the air conditioner can cut your fingers When Installing In a Ceiling or Wall Make sure the ceiling wall is strong enough to hold the unit s weight It may be necessary to construct a strong wood or metal frame...

Page 4: ...s Figure Q ty Parts Figure Q ty Parts Figure Q ty CMH1972A CMH2472A CMH3172A 2 1 A B C D Reducer 1 2 3 8 CAUTION Check local electrical codes and regulations before obtaining wire Also check any specified instructions or limitations Model Narrow Tube Wide Tube Outer Dia Thickness Outer Dia Thickness KMHS0772 0972 1272 1 4 6 35 mm 0 0314 0 8 mm 3 8 9 52 mm 0 0314 0 8 mm KMHS1872 1 4 6 35 mm 0 0314 ...

Page 5: ...d the unit Fig 2a or 2b G install the unit within the maximum elevation difference H1 H2 H3 H4 above or below the outdoor unit and within a total tubing length L1 L2 L3 L1 L2 L3 L4 from the outdoor unit as detailed in Table 3 and Fig 3a Drain hose Indoor unit Outside drainage Fig 1 2 5 cm min 6 15 cm min Front View 2 5 cm min Fig 2a For wall mounted units For ceiling mounted cassette units INDOOR ...

Page 6: ...dditional refrigerant R410A by 0 22 oz ft No additional charge of compressor oil is necessary For more detailed charging information refer to the Technical Service Manual Max Max Allowable Total Limit of Limit of Elevation Required Amount Allowable Tubing Length Total Tubing Length Difference of Additional Model Tubing Length at shipment L1 L2 L3 or H1 H2 H3 H4 Refrigerant per unit L1 L2 L3 or L1 ...

Page 7: ... 3 8 9 52mm 1 4 6 35mm 1 4 6 35mm 1 4 6 35mm Union 3 8 9 52mm Flare 1 2 12 70mm KMHS0772 KMHS0972 KMHS1272 XMHS0972 XMHS1272 1 2 12 70mm 3 8 9 52mm 1 4 6 35mm 1 2 12 70mm 3 8 9 52mm Supplied Reducer 2 Connecting indoor unit for CMH2472A 1 Connecting indoor unit for CMH1972A Fig 4a 3 8 9 52mm 3 8 9 52mm 1 4 6 35mm 1 4 6 35mm 1 4 6 35mm 3 8 9 52mm 3 8 9 52mm 3 8 9 52mm 3 8 9 52mm C B A Outdoor unit ...

Page 8: ...1 2 12 70mm 1 2 12 70mm 3 8 9 52mm KMHS0772 KMHS0972 KMHS1272 XMHS0972 XMHS1272 3 8 9 52mm 3 8 9 52mm 1 4 6 35mm 1 4 6 35mm A KMHS0772 KMHS0972 KMHS1272 XMHS0972 XMHS1272 3 8 9 52mm 3 8 9 52mm 1 4 6 35mm KMHS1872 XHS1872 1 2 12 70mm 1 2 12 70mm 1 4 6 35mm C Fig 4e Union 5 8 15 88mm Flare 1 2 12 70mm 1 2 12 70mm 5 8 15 88mm Locally purchased C B KMHS0772 KMHS0972 KMHS1272 XMHS0972 XMHS1272 KMHS0772...

Page 9: ... 8 9 52mm Flare 1 2 12 70mm 1 2 12 70mm 3 8 9 52mm Supplied Reducer A Outdoor unit Indoor unit KMHS0772 KMHS0972 KMHS1272 XMHS0972 XMHS1272 3 8 9 52mm 3 8 9 52mm 1 4 6 35mm B KMHS0772 KMHS0972 KMHS1272 XMHS0972 XMHS1272 3 8 9 52mm 3 8 9 52mm 1 4 6 35mm C KMHS0772 KMHS0972 KMHS1272 XMHS0972 XMHS1272 1 2 12 70mm 3 8 9 52mm 1 4 6 35mm D KMHS1872 XHS1872 1 2 12 70mm 1 2 12 70mm 1 4 6 35mm C Fig 4i A K...

Page 10: ...XMHS0972 XMHS1272 3 8 9 52mm 3 8 9 52mm 1 4 6 35mm B KMHS0772 KMHS0972 KMHS1272 XMHS0972 XMHS1272 3 8 9 52mm 3 8 9 52mm 1 4 6 35mm 1 4 6 35mm 1 4 6 35mm E Fig 4k Union 5 8 15 88mm Flare 1 2 12 70mm 1 2 12 70mm 5 8 15 88mm Locally purchased B KMHS0772 KMHS0972 KMHS1272 XMHS0972 XMHS1272 A Outdoor unit Indoor unit KMHS0772 KMHS0972 KMHS1272 XMHS0972 XMHS1272 3 8 9 52mm 3 8 9 52mm 3 8 9 52mm 3 8 9 52...

Page 11: ...commended to use baffle plates When the outdoor unit is installed in a position exposed to strong wind such as seasonal winds with low air tempera ture in winter baffle plates must be installed on the outdoor unit Fig 5f This unit is designed so that the fan of the outdoor unit runs at low speed when the air conditioner is operated at low outdoor air temperatures When the outdoor unit is exposed t...

Page 12: ...5 657 7 5 10 150 20 20 CMH3172A inch 25 3 16 25 32 1 3 8 30 29 32 13 25 32 13 25 32 25 64 25 32 19 32 31 25 32 19 64 25 64 5 29 32 25 32 25 32 mm 640 20 35 785 350 350 10 20 15 807 7 5 10 150 20 20 Dimensions A B C D E F G H I J K Model CMH1972A inch 22 1 16 23 1 32 13 25 32 5 29 32 19 9 32 1 3 8 2 5 32 18 5 16 2 3 8 3 11 32 31 32 2472A 3172A mm 560 585 350 150 490 35 55 465 60 85 25 Air Intake Ba...

Page 13: ... side L and R from the unit and drill 4 holes of ø1 4 inch 6 5 mm at the prescribed positions 2 Install the windbaffle on the unit using field supply bolts and nuts 3 Recommended bolts to be used are 15 64 M6 ISO standard and the recommended length of the bolts is between 13 32 19 32 inch 10 15 mm 4 Use washers and spring washers to tightly fasten the windbaffle to the unit 4 Precautions for insta...

Page 14: ... 27 32 2 3 4 4 7 16 2 15 16 2 3 4 Service valve on narrow tube side Outer diameter 1 4 6 35 Service valve on wide tube side Outer diameter 3 8 9 52 Service valve on wide tube side Outer diameter 1 2 12 70 A 23 32 Fig 6c 23 15 16 15 32 12 19 32 13 19 32 14 17 32 5 11 32 35 7 16 900 23 32 35 1 32 890 2 29 32 2 1 16 1 13 16 2 13 32 4 1 2 2 1 32 4 7 16 5 29 32 2 15 16 2 27 32 2 3 4 2 3 4 A Service val...

Page 15: ...rmance Install in a location where the dimensions indicated by are ensured and where 2 or more faces of the unit are unobstructed In principle the top direction should be unobstructed Indoor unit D Wall mounted types Ceiling mounted cassette types Indoor unit C Indoor unit B Indoor unit A Indoor unit D Indoor unit C Indoor unit B Indoor unit A Service space Power breaker Ground wire not provided E...

Page 16: ...s do not allow the wire ends to come in contact with rainwater or be subject to dew condensation Deburring Before After Fig 8 3 2 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 In this method the copper tubes are flared at each end and connected with flare nuts 3 3 Fl...

Page 17: ...lare tube straight with each other then screw in the flare nut lightly at first to obtain a smooth match Fig 13 3 5 Tubing Connections a Temporary connection Screw in 3 5 turns by hand Fig 14 b To fasten the flare nuts apply specified torque as Table 4 NOTE NOTE Reamer Copper tubing Fig 9 Flare tool Flare nut Copper tubing Fig 11 Fig 10 Apply refrigerant lubricant here and here Fig 12 Flare nut Un...

Page 18: ... Insulation material The material used for insulation must have good insulation characteristics be easy to use be age resistant and must not easily absorb moisture IMPORTANT Indoor unit Outdoor unit Spanner Torque wrench Fig 15 Insulation Min 5 16 8 mm Thickness min 5 16 8 mm Fig 16 Insulation Fig 17a CAUTION Be sure to match refrigerant tubing and electric wiring between indoor and outdoor units ...

Page 19: ...cial for R410A High pressure valve Manifold gauge special for R410A Low pressure valve Leave the valve open Open Charging hose special for R410A Hex wrench With push pin Hi Lo 3 7 Taping the Tubes 1 At this time the 2 refrigerant tubes and electrical wire if local codes permit should be taped together with armoring tape The drain hose may also be included and taped together as 1 bundle with the tu...

Page 20: ...nterclockwise to fully open the valve 8 Turn the narrow tube service valve stem counter clockwise to fully open the valve 9 Loosen the vacuum hose connected to the wide tube service port slightly to release the pressure Then remove the hose 10 Leak test all joints at the tubing both indoor and outdoors with liquid soap Bubbles indicate a leak Be sure to wipe off the soap with a clean cloth CAUTION...

Page 21: ...Disconnect the manifold gauge and the inter unit tubes and attach the caps and flare nuts At this point pump down is com pleted If the caps and flare nuts are not reattached there is the danger of gas leakage Refer to Fig 24 If pump down is not possible If the air conditioner cannot be operated because of a malfunction or other cause use a refrigerant recovery device to recover the refrigerant In ...

Page 22: ...n the internal wiring can be very dangerous The manufacturer will accept no responsibility for any damage or misoperation that occurs as a result of such unauthorized changes 5 2 Recommended Wire Length and Diameter Regulations on wiring diameter differ from locality to locality For field wiring requirements please refer to your local elec trical codes Carefully observe these regulations when car ...

Page 23: ...way from other grounds and do not have it shared with other electric appliances WARNING Fig 25a Fig 25b 4 indoor units with CMH2472A CMH3172A 1 2 3 Terminal INDOOR UNIT 1 2 3 INDOOR UNIT 1 2 3 1 UNIT B 2 3 4 UNIT C 5 6 7 8 9 1 2 Terminal Terminal L1 L2 INDOOR UNIT UNIT A A B C Terminal 2P Terminal 9P OUTDOOR UNIT Disconnect switch 230 208V 230 208V 230 208V 230 208V 230 208V 230 208V 230 208V 230 ...

Page 24: ...Shape the loop wire properly place it on the termi nal plate and fix it securely with the removed termi nal screw using a screwdriver I For stranded wiring 1 Cut the wire end with a cutting pliers then strip the insulation to expose the stranded wiring about 3 8 10 mm and tightly twist the wire ends Figs 28 and 29 2 Using a screwdriver remove the terminal screw s on the terminal plate 3 Using a ri...

Page 25: ...refrigerant tubing that is connected to service valve B second from the bottom of the outdoor unit B is the indoor unit with Indoor unit C refrigerant tubing that is connected to service valve C third from the bottom of the outdoor unit C is the indoor unit with Indoor unit D refrigerant tubing that is connected to service valve D top of the outdoor unit D is the indoor unit with 1 2 1 2 3 4 5 6 7...

Page 26: ...s in the indoor unit installation manual G Perform the test run separately for each connected indoor unit If 2 units are operated simultaneously it is not possible to correctly check for errors in tubing and wiring G If the room temperature is 59 F 15 C or below it may not be possible to check for tubing errors with cooling operation If this occurs perform heating operation for each unit individua...

Page 27: ... unit cables are securely fastened to the terminal board Inter unit cables are securely fixed The power cable and inter unit cables are not connected anywhere along their paths The ground wire is securely connected An air purge of the refrigerant circuit has been conducted A leak test of the tubing connections has been performed Thermal insulation has been applied to the tubing connections Drain c...

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