carrier air conditioner user manual

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We also provide links to the manufacturer's current model lists and literature. Syracuse, N.Y. 13221 USA. Tel. Also see Carrier Data Tag Decoding under the letter C at DATA TAGS on AIR CONDITIONERS Mr. Hankey is a past chairman of the ASHI Technical Committee and the ASHI Standards Committee. Mr. Hankey serves as co-chairman of ASHI legislative committee, and has served in other ASHI professional and leadership roles.https://www.kroatien-croliday.de/images/carrier-air-conditioner-maintenance-manual.pdfAlan Carson is a past president of ASHI, the American Society of Home Inspectors. Carson Dunlop Associates' provides extensive home inspection education and report writing material. The text is intended as a reference guide to help building owners operate and maintain their home effectively. Field inspection worksheets are included at the back of the volume. Special Offer: For a 10 discount on any number of copies of the Home Reference Book purchased as a single order. InspectAPedia.com editor Daniel Friedman is a contributing author. Or choose the The HOME REFERENCE eBook for PCs, Macs, Kindle, iPad, iPhone, or Android Smart Phones. Special Offer: For a 5 discount on any number of copies of the Home Reference eBook purchased as a single order. If technical assistance, service or lepair is needed, contact the installer or call 1-800-227-7437. AUTO -- In Auto mode, the system will automatically cool or heat the room according to the user selected set point. This mode does not take the place of a dehumidifiel: NOTE: Two settings ale avtfilable for use with selected modes. The Turbo setting provides maximum capacity. The Economi- cal setting provides quiet, energy saving operation. Cooling and Heating modes can be operated in either the Turbo or the Economical setting. The Dehumidification mode can be operated in the Turbo setting, and the Auto mode can be operated in the Economical setting. Remote Control (Fig. 2-6)-- The remote control transmits commands to set up and operate the system. The controller has a window display panel that shows the current system status.IMPORTANT: The remote control can operate tile unit fiom a distance of up to 16 ft as long as there are not any obstructions. After new batteries have been inserted, press the leset button with a paper clip or the tip of a pen. Batteries should only be changed after turning the unit off. The average battery life during normal use is approximately one year If the air conditioner does not operate normally after replacing the batteries, refit the batteries and press the reset button again after 5 seconds. NOTE: When transmitting a command from the remote control to the unit, be sure to point the controller toward the right side of the unit. See Fig. 6. The unit will confirm receipt of a command by sounding an audible beep.Press either A or g to set the current horn: Press C again to move to set the minutes. 3. Once the current time is set, press C to con- firm it. FAN SPEED -- To select the Fan mode and change the Fan Speed, follow the steps below: 1. Press the Mode button to select the Fan mode. 2. Press the Fan Speed button to select desired fan speed. NOTE: If unit is operating in Dehumidification mode the fan will only operate in low speed and cannot be changed. AIRFLOW DIRECTION- The louveLs can be manually operated by pressing the Louver button to change airflow direction. ON timer selected 13. Night timer active 14. DAILY timer active (Everyday) 15. ON timer and OFF timer or current time 16. OFF timer selected 17. Ionizer active Fig. 4- Remote Control Display Icons Indoor Unit Display (Fig. 7) -- The indoor unit dis- play has three LED indicators at the lower right hand portion of the unit. Tile Blue light is illuminated when the ionizer is active. Tile Orange light is illuminated during timer mode. The Green light is illuminated during operation. Emergency Operation -- When the remote control is lost or damaged or the batteries are exhausted, the EMER.Press the EMER. button once briefly when the system is off. To stop emergency operation, push the EMER.The unit will start in the last operating mode. All indicator lights on the unit will go out, and file remote control will display only the current time. The unit will only emit an audible beep when file signals am received correctly. The chosen mode is shown as follows, while the unit will acknowledge signal receipt with a beep. The unit will confirm signal receipt with a beep, and the value of the set temperature on the display will change accordingly. The temperature can be set between 63 F and 90 F at 1 degree intervals. NOTE: In Cooling mode, if the temperature selected is higher than the room temperature the unit will not start; the same applies for the Heating mode, if the selected temperature is lower than the room temperature. The remote control can be set to display the temperature in degrees Fahrenheit or degrees Celsius. See Table 1. In the Cooling, Dehumidification and Fan Only mode, the louver will swing in the cooling range.Turbo Dehumidification mode per- forms the dehumidification operation until room temperature is under 63 F or 3 hours after pressing the turbo setting button. While in Turbo Dehumidifica- tion mode, indoor fan speed operates in low speed in order to remove humidity more effectively. During the Economical setting, the room temperature and louver position can be set by using the remote control. Fan speed cannot be changed while in the Economical setting. The relevant icon and time figure will start to flash. If 10 seconds have elapsed and no button is pressed, the remote control returns to the previous setting without making any changes. 2. Setting the ON time with A V. When the unit is ON, the only possible selection is the start-up time. The Operating mode and set point remain file same as the currant operation. The icon of the selected mode will stop flashing. 4. Select the desired set point temperature. The set point numbers will stop flashing. Now all icons are fixed on display. The Off timer icon and numbers for a time selection flash. NOTE: This function can be set even if the remote control is OFF. Setting the Off time (buttons A and V). To set the Off time, press either button A orV. To move from hour to minute, press. The icon will appem on display. EXAMPLE 1: Combining the ON, OFF and DAILY timer features. To start the unit at 5:30 RM.The icon will appear on the display. The set temperature will change as in Fig. 10. For more information, refer to the installation instructions. Resetting the Remote Control -- If the remote con- trol is not functioning properly it can be reset by pressing the reset button with a paper clip or tip of a pen. Time Delay -- If unit operation is started aller the power is turned off.When heating operation starts, hot air delivery may be delayed due to a warm-up period. Minimum Operation Time -- In norm;d operation, there is a minimum operation time of 5 to 7 minutes between the compressor turning on and turning back off. The system will automatically revert to normal operation when frost is removed from the outdoor unit. Auto Recovery -- If the power fails while the unit is operating, the unit memorizes the operating condition, and it will start operation automatically when the power is restored. Indoor Unit Frost Prevention in Cooling and Dehumidification Mode--If the unit operates at a low ambient temperature, frost may appear on the indoor coil. If the indoor coil temperature is near 32 E the compressor's speed is reduced or stopped to protect the unit from frost. CLEANING, MAINTENANCE AND TROUBLESHOOTING To avoid the possibility of electric shock, always turn off power to the system before performing any cleaning or maintenance to the system. Turn off the outdoor disconnect switch located near outdoor unit. Be sure to disconnect indoor unit if on a separate switch. Operating the system with dirty air filters may damage the indoor unit and could cause reduced cooling performance. Periodic Maintenance- Periodic maintenance is recommended to ensure proper operation of the unit. Recom- mended maintenance intervals may vary depending on the installation environment, e.g., dusty zones, etc. Refer to Table 2. The coil fins are very sharp. Use caution when cleaning the coil fins to prevent unit dmnage and to avoid personal injury. Cleaning the Coil -- Clean the coil at the beginning of each cooling season, or when necessary. Use a vacuum cleaner or a long-bristle brush to avoid dmnage to the coil fins. NOTE: If air filters show signs of excessive wear or are torn, they must be replaced. When cleaning the front panel, do not use water hotter than 105 F and do not pour water onto file fan coil. Do not use abrasive or petroleum based cleaners as they may dmnage the front panel. Ionizer -- Clean the ionizer with a brush every four months. Disconnect the unit from the main power supply prior to cleaning or performing maintenance on the ionizel: Serious pel,sonal injury could result. 1. Unscrew and lift the ionizer covel: 2. Brush the needles on the base of the ionizel: 3. Close the cover and tighten the sclew. Indoor Unit Front Panel -- To clean the front panel on the indoor unit, wipe the outside with a soft, chy cloth. If neces- sary, a mild liquid detergent can be applied and wiped off with a dry cloth. Preparing for a Long Shutdown Period -- Clean the filters and reposition them in the unit. Operate the unit in Fan only mode for 12 hours to dly all internal parts. Turn main power supply off and remove batteries from the remote control. Refer to the Installation Manual. 10 Unit Stops During Operation which could indicate an indoor or outdoor unit fault. LEGEND LED -- Light Emitting Diode Table 4 -- Unit Protection Devices TYPE OF PROTECTION EFFECT OF PROTECTION OPERATING MODE Indoor Coil High Temperature Protection Compressor speed slow down or off Heating and Auto mode at high outdoor temperatures Indoor Coil Freeze Up Protection Compressor speed slow down or off Cooling, Dehumidification and Auto mode at low outdoor temperatures Discharge Gas High Temperature Protection Compressor speed slow down or off Cooling, Heating, Dehumidification and Auto mode outdoor temperatures Frequent Compressor Cycling Compressor time delay All During heating operation the unit may defrost to remove ice that might collect on the outdoor unit. Fill out the following to save time on any future service calls. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with Carrier Hvac Manuals. To get started finding Carrier Hvac Manuals, you are right to find our website which has a comprehensive collection of manuals listed. Our library is the biggest of these that have literally hundreds of thousands of different products represented. I get my most wanted eBook Many thanks If there is a survey it only takes 5 minutes, try any survey which works for you. Using the online preview, you can quickly view the contents and go to the page where you will find the solution to your problem with Carrier Air Conditioner. To start viewing the user manual Carrier Air Conditioner on full screen, use the button Fullscreen. However, if you do not want to take up too much of your disk space, you can always download it in the future from ManualsBase. The option to print the manual has also been provided, and you can use it by clicking the link above - Print the manual. You do not have to print the entire manual Carrier Air Conditioner but the selected pages only. paper. If you want to quickly view the content of pages found on the following pages of the manual, you can use them. See Table 3. The MBB also controls several outputs. Relay outputs controlled by the MBB are shown in Table 4. UNIT NOMINAL SECTION A SECTION B 30GTN,R TONS UNIT 30GTN,R UNIT 30GTN,R Information is transmitted between modules via a 3-wire com- 040 40 — — munication bus or LEN (Local Equipment Network). The 045 45 — — CCN (Carrier Comfort Network) bus is also supported. CIf the communication bus is RED LED — Proper operation of the control boards can be entirely within one building, the resulting continuous shield visually checked by looking at the red status LEDs (light- must be connected to a ground at one point only. If the commu- emitting diodes). When operating correctly, the red status nication bus cable exits from one building and entersSee T5, T6 — COOLER SUCTION TEMPERATURE SEN- Table 2. These sensors are outlined below. See Fig. 7-10 for SORS — These thermistors are located next to the refrigerant thermistor locations. Thermistors T1-T9 are 5 k? at 77 F inlet The sensor should be installed as a the space temperature sensor.The liquid line solenoid valves are not intended to be a mechanical A high-pressure switch is wired in series between the MBB shut-off. When service is required, use the liquid line This device eliminates the use of the liquid line solenoid pumpdown at unit shutdown. An O-ring has been added to bot- tom of orifice assembly to complete a seal in the valve on shut- STEPPER down. This is not a mechanical shut-off. When service is MOTOR (12 VDC) required, use the liquid line service valve to pump down the LEAD SCREW system. High pressure refrigerant enters bottom of valve where If the next stage of capacity algorithm attempts to maintain the leaving chilled water tem- is a compressor, the control starts (stops) a compressor when perature at the control point. Each time it runs, the control reads the ratio. Air Condition. Maker 9Carrier DO. LoL un erate, mig e RE aWIRING (24 v). A EEE ee 6. SERVICE. ee ae ae eee a ee en at ee 9-11Only trainedUntrained personnel can perform basic main-All other operations should be,Follow all safety codes. Wear safety glasses andTeLe. E mCertified dimension drawings available on request. Fig. 1 — Dimensions, Connections and. Mounting Pad. Form 38VH-25I. TE a fn e r. Table 1 — Physical DataUNPACKAGE UNIT — Move to final location. Slide from carton taking special care not to damageINSPECT EQUIPMENT — File claim with ship-Consult local building codes and National. Electrical Code (NEC) for special installationWhen installing, allow sufficient space for airflowRecommended space minimum requirements are:Install on a solid, level mounting pad. PositionAny 2 holes in unit base mayCarrier Cooling System Capacity Optimization mayOutdoor Air Design Temperature closest to that ofPiston change 1s not necessary if table indicates thatWhen evaporator is more than one size largerTXV to nominal capacity of condensing unit. A replacement AccuRater piston 1s factory sup-Replace piston as required before connectingOUTDOOR em me. AIR COND Evap Size. TEMP (F) 38VH Model 28VH, See Below)Condition)NOTE: Piston numbers effective December 1, 1979. Instructions are included in evaporator InstallationChargemaster charging device or charging chart to. Condensing Units Connected to Carrier-Approved. Evaporators — Condensing units contain correctPiping Connections) or 50 ft or less of Carrier acces-E ae nn a. PE eu EE on a. Rt AA A A A AA a ae ata ee ae aa aaa a TeComponents. Condensing Units Connected to Non-Carrier Evap-Check that field-supplied refrigerant piping is inStep 2 — Make Tubing Connections — Con-Table 3 for recom-Isolate interconnecting tubing from framing anUse isolation typeA capacity and efficiency reduction results ifOver 50-ft vertical separation, the condensing unit must beFor maximum capacity and efficiency from this sys-Length of interconnecting tubing may necessitateFollow special re-Bend or coil excess tubing to fit. Table 3 — Field-Supplied Tubing DataUNIT SIZE Line Diameter ep:Table 4 — AccessoriesHH93AZO40 Thermostat Subbase. HH51AROO1 Comfort Control Center (Use with HHO1 ADO40) NHH93AZO76 Thermostat Subbase (with Automatic Changeover). HHO1ADO42 Low-Voltage Control — Honeywell Thermostat a All. HH93AZ042 Thermostat Subbase. HHOTYA092 Low-Voltage Control — Grayson ThermostatTable 3 If accessory tubing package is used on 38VH004,045,Do not use damaged or contaminated tubing. Always evacuate or purge evaporator coil andWhen making tubing connections, be sure to pro-CONNECT REFRIGERANT LINES to fittings onTSuction line is insulated and has a 90 degree bend at one end. OD suction linesModels 38V H002,003,004,045,005 — When usingCompatible Fitting. Connect liquid refrigerant lineTable 5 — Electrical DataCorresponding wire sizes and wire lengths. Full Load Amps. Locked Rotor Amps. Rated Load Amps. Mechanical Connection — (Mate one set of con-Keep tube bottomed in. Compatible Fitting while tightening nut.Schraeder core and cap from valve service port.Step 3 — Make Electrical Connections — BeNOTE Control circuit is 24-v on ali units and requires external power source. See Table 5 for recommended wire and fuse sizes. When making electric connections, provide clear-National Electrical Code (NEC).Then connect powerAa. Field Wiring. Factory Wiring. Fig. 4 — Line Power ConnectionsFS — Fan Switch. HC — Heating Control. IFM — Indoor Fan Motor. IFR — Indoor Fan Relay. Trans — TransformerFactory Wiring. Fig. 5 — Control Circuit ConnectionsUse furnace or fan-coil transformer as 24-vFig. 5, or, use accessory transformer shown in. Table 4. When using 28 VH coil, special wiring provisionsBe sure this temperature is below indoor ambient.Fan or AUTO. as desired. Solid state TimeSolid State Time Guard Circuit.) Operate unitMotors and controls are designed to operateTable 5. If necessary to use manifold gages forTechniques Manual, Chapter 1, Refrigerants,Refrigerant ChargingSe er H ENTENe a Le. Condensing units contain correct operatingchargeFor every 10 ft of liquidTable 6 — Service Data. On systems having field piping in excess of 50 ft,Service port connections are provided on liquidTable 7. Details of charging methods are listedBefore recharging system, thoroughly evacuateRefer to Carrier Standard Service Techniques. Manual, Chapter 1, Refrigerants, for additionalWEIGHT METHOD — Refer to Table 6 or unitWhen system is not evacuated, subtract theThe Dial-a-charge charging cylinder is an accu-These cylinders are available at refrigerant supplyDischarge the factory charge into a proper containerCarrier accessory tubingTable 7 — Refrigerant Charging MethodsChargemaster Sight a Weight MethodCharging Chart Charging Chart Sight GlassAfter purging lines, close valve on ChargemasterSUCTION LINE TEMPERATURE ( F) perature at black needle position. Fig. 7 — Charging Chart (Non TXV Systems)”. CHARGING CHART METHOD — Use Charging. Chart, Fig. 7 and the following procedure. 7. Enter Chargemaster Charging Chart, Table 8, at. Outdoor Air Temperature (step 5) and Evap-. Find the SuctionIf actual suction line temperature (step 6)See Table 8.Insulate bulb. Ensure tNot to be used for 28VH applications See “Weight Method —Check outdoor airIf they change, refer back to Chargemaster. Charging Chart. Correct use of Chargemaster ensures than an opti-However, the Chargemaster does not solve or fixIt indicates correct chargeIt will not make correc-This charging device ensures that a correct relation-SIGHT GLASS METHOD — (Field-supplied sightFor optimum charge, increase high-side pressureCharge to a clearRemove refrig-Manual, Chapter 1, Refrigerants. Follow safety codes. Wear safety glasses andTable 9 — Compressor DataFailure to do so mayOpen door and removeRemove unit top cover. Remove 6 screwsLift assembly and position it near unit beingCompressor sound shield is snapped together. Undo those snaps which are under pipingCompressor. Remove compressor terminal box cover. Dis-Be sure refrigerant has been removed so thatUsing a tubing cutter, cut suction and dischargeRemove compressor hold- down bolts. Lift outCarefully unbraze suction and discharge lineIf oil vapor ?nBraze piping stubs (removed ?n Step 7) onto newInstall new compressor in unit. Have fire ex-Braze suction and dis-Clean system. If a compressor failure wasDiscard both driers.Install new liquid line filter-drier. If burnoutInstall new filter-drier.Recharge system asFilter-Drier — Install field-supplied filter-drierCompressor Removal. Position drier in liquid linePumpdown Procedure — The system may beUnit Controls and Safety Devices. HIGH-PRESSURE RELIEF VALVE, whenRelief valveHIGH-PRESSURE SWITCH is located on unitLOW-PRESSURE SWITCH is located on unit suc-RENT SENSITIVE OVERLOADS reset auto-Standard Service Techniques Manual, Chapter 2. Electrical, for complete instructions.After thermostatCRANKCASE HEATER SWITCH — TheThis assures good lubri-Opens (deactivates) at 85 FFig. 8 — Repair of Mechanical Connection. Compatible Fitting Repair. MECHANICAL CONNECTION — Frontseat unitClean, flux, and insert new tube end into remain-Wrap valve baseSWEAT CONNECTION — Frontseat unit serviceClean and flux area around leak. Repair using low-Evacuate or purge evaporator coil and tubingSee Refrigerant. Charging instructions described previously. Condenser Fan Adjustment — Required fanFig. 9 — Condenser Fan PositionI. Shut off power to unit. Failure to do so mayOpen access door. Then open control box cover.See Fig. 6.Before replacing fan, be sure rain shield (Fig. 9)EsDei DE i E: a DE a POINTFAN MOTOR BEARINGS are prelubricated forCOMPRESSOR contains factory oil charge. If oilChapter 1, Refrigerants, page 1-21, for instructions. Use Carrier PP33-1, Texaco Capella B or SunisoCoil Cleaning — Ensure power to unit is shut off.