Carrier 50XT-A Heat Pump User Manual
Contents
1. 50ZPA Base 13 SEER Single Packaged Air Conditioner System With R 22 Refrigerant Single and Three Phase 2 to 5 Nominal Tons Sizes 024 060 Turn to the Experts Owner s Information Manual Ui LLL e MUULI VIM A LLL LLY AX LMM LULL BLL Att ain Wit iQ NN Attn AN A05194 Fig 1 Unit 50ZPA NOTE TO EQUIPMENT OWNER For your convenience please record the model and serial numbers of your new equipment in the spaces provided This information along with the installation data and dealer contact information will be helpful should your system require maintenance or service UNIT INFORMATION INSTALLATION INFORMATION Model Date Installed Serial DEALERSHIP CONTACT INFORMATION Company Name ACCESSORIES List type and model Address Phone Number Technician Name NOTE TO INSTALLER This manual must be left with the equipment owner SAFETY CONSIDERATIONS Installation and servicing of this equipment can be hazardous due to mechanical and electrical components Only trained and qualified personnel should install repair or service this equipment Untrained personnel can perform basic maintenance functions such as cleaning and replacing air filters All other operations must be performed by trained service personnel When working on this equipment observe precautions in the literature on tags and on la bels attached to or2. Table 1 Indoor Air Filter Data Unit Size Filter Size 024 036 24x24x1 610x610x25 mm 042 060 30x30x1 762x762x25 mm If you have difficulty locating your air filter s or have questions concerning proper filter maintenance contact your dealer for instructions When replacing filters always use the same size and type of filter that was supplied originally by the installer 4 CAUTION UNIT OPERATION HAZARD Failure to follow this caution may result in property damage Never operate your unit without filters in place An accumulation of dust and lint on internal parts of your unit can cause loss of efficiency Fans and Fan Motors Periodically check the condition of fan wheels and housings and fan motor shaft bearings No lubrication of condenser or evaporator fan bearings or motors is required or recommended Indoor and Outdoor Coils Cleaning of the coils should only be done by qualified service per sonnel Contact your dealer for the required annual maintenance Condensate Drain The drain pan and condensate drain line should be checked and cleaned at the same time the cooling coils are checked by your deal er Compressor All compressors are factory shipped with a normal charge of the cor rect type of refrigeration grade oil in them and should rarely require additional oil Condenser Fan A WARNING PERSONAL INJURY AND UNIT DAMAGE HAZARD Failure to follow this warning could result i
3. service check for several easily solved problems If insufficient heating or cooling is suspected Check for sufficient airflow _ Check the air filter for dirt _ Check for blocked return air or supply air grilles Be sure they are open and unobstructed If these checks do not reveal the cause call your servicing dealer If your unit is not operating at all check the following list for easy solutions _ Check to be sure that your thermostat temperature selector is set below the indoor temperature during the cooling season Be sure the SYSTEM switch or MODE control is in the COOL position and not in the OFF position If your unit still fails to operate call your servicing dealer for troubleshooting and repairs Specify the model and serial numbers of your unit Record them in this manual in the space provided If the dealer knows exactly which unit you have he may be able to offer suggestions over the phone or save valuable time through knowledgeable preparation for the service call In Case of Trouble If you perform the steps above and unit performance is still unsatis factory shut off the unit and call your dealer Dealer s Name Telephone Unit Model Unit Serial Number Turn to the Experts TO OBTAIN INFORMATION ON PARTS Consult your installing dealer or classified section of your local telephone directory under the Heating Equipment or Air Conditioning Contractors amp Syst
4. shipped with the unit and other safety precautions that may apply Follow all safety codes Installation must be in compliance with lo cal and national building codes Wear safety glasses protective clothing and work gloves Have fire extinguisher available Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit Recognize safety information This is the safety alert symbol A When you see this symbol on the unit and in instructions or manuals be alert to the potential for personal injury Understand these signal words DANGER WARNING and CAU TION These words are used with the safety alert symbol DAN GER identifies the most serious hazards which will result in severe personal injury or death WARNING signifies hazards which could result in personal injury or death CAUTION is used to identify un safe practices which may result in minor personal injury or product and property damage NOTE is used to highlight suggestions which will result in enhanced installation reliability or operation Note Installer This manual should be left with the equipment user A WARNING ELECTRICAL SHOCK AND OPERATION HAZARD Failure to follow this warning could result in personal injury death or property damage Do not use this unit if any part has been underwater Immediately call a qualified service technician to inspect the unit and to replace any part of the control system whic
5. those things you might want to maintain yourself please carefully consider the following 4 WARNING FIRE EXPLOSION ELECTRICAL SHOCK AND CUT HAZARD Failure to follow this warning could result in personal injury death or property damage 1 TURN OFF ELECTRICAL POWER TO YOUR UNIT BEFORE SERVICING OR PERFORMING MAINTENANCE 2 When removing access panels or performing maintenance functions inside your unit be aware of sharp sheet metal parts and screws Although special care is taken to reduce sharp edges to a minimum be extremely careful when handling parts or reaching into the unit Air Filters The air filter s should be checked every 3 or 4 weeks and changed or cleaned whenever it becomes dirty Dirty filters produce exces sive stress on the blower motor and can cause the motor to overheat and shut down This unit must have air filters in place before it can be operated These filters can be located in one of at least two places In many applications the installer will provide return air filter grilles mounted on the wall or ceiling of the conditioned structure In the instance of filter grilles the filters can simply be removed from the grille and replaced The other typical application is an accessory filter rack installed inside the unit itself The following information is given to assist in changing filters used in these internal filter racks Table 1 indicates the correct indoor filter size for your unit
6. ems heading for dealer listing by brand name Have available the Model No Series Letter amp Serial No of your equipment to ensure correct replacement part Copyright 2008 Carrier Corporation Printed in the U S A Edition Date 02 08 Catalog No OM50ZPA 01 Manufacturer reserves the right to change at any time specifications and design without notice and without obligation Replaces OM50 40 4
7. h has been underwater A WARNING ELECTRICAL SHOCK AND CUT HAZARD Failure to follow this warning could result in personal injury death or property damage When removing access panels or performing maintenance functions inside your unit be aware of sharp sheet metal parts and screws Although special care is taken to reduce sharp edges to a minimum be extremely careful when handling parts or reaching into the unit TO START UNIT 1 Turn on the electrical power supply to the unit 2 Select temperature and set system switch to desired mode TO SHUT OFF UNIT Note If the unit is being shut down because of a malfunction call your dealer as soon as possible 1 Set the temperature switch to OFF 2 Turn off the electrical power supply to unit ROUTINE MAINTENANCE All routine maintenance should be handled by skilled experienced personnel Your dealer can help you establish a standard procedure For your safety keep the unit area clear and free of combustible materials gasoline and other flammable liquids and vapors To assure proper functioning of the unit flow of condenser air must not be obstructed from reaching the unit Clearance from the top of the unit is 48 in 1219 mm Clearance of at least 36 in 914 mm is required on sides except the power entry side 42 in 1067 mm clearance and the duct side 12 in 305 mm minimum clearance Maintenance and Care for the Equipment Owner Before proceeding with
8. least every other year should include the following 1 Inspection and if required cleaning of the indoor coil condensate drain 2 Inspection and if required cleaning of the evaporator drain pan 3 Inspection and cleaning of blower wheel housing and motor 4 Inspection of all supply air and return air ducts for leaks obstructions and insulation integrity Any problems found should be resolved at this time 5 Inspection of the unit base to ensure that no cracks gaps etc exist which may cause a hazardous condition 6 Inspection of the unit casing for signs of deterioration 7 Inspection of all electrical wiring and components to ensure proper connection 8 Inspection for leaks in the refrigerant circuit Pressure check to determine appropriate refrigerant charge 9 Inspection of compressor oil level by service person to ensure proper oil level is maintained in the compressor when it is installed and running 10 Operational check of the unit to determine working conditions Repair or adjustment should be made at this time Your servicing dealer may offer an economical service contract that covers seasonal inspections Ask for further details Complete service instructions can be found in the unit Installation Start up and Service Instructions Warranty Certificate Your 50ZPA unit has a limited warranty Be sure to read the warranty carefully to determine the coverage for your unit Before you call for
9. n personal injury death or property damage Do not insert sticks screwdrivers or any other object into revolving fan blades The fan must be kept free of all obstructions to ensure proper cool ing Contact your dealer for any required service Electrical Controls and Wiring Electrical controls are difficult to check without proper instrumenta tion If there are any discrepancies in the operating cycle contact your local dealer and request service Refrigerant Circuit The refrigerant circuit is difficult to check for leaks without the prop er equipment If inadequate cooling is suspected contact your local dealer for service A WARNING EXPLOSION AND ENVIRONMENTAL HAZARD Failure to follow this warning could result in personal injury death or property damage System under pressure Relieve pressure and recover all refrigerant before system repair or final unit disposal Use all service ports and open all flow control devices including solenoid valves Unit Panels After performing any maintenance or service on the unit be sure all panels are fastened securely in place to prevent rain from entering unit cabinet and to prevent disruption of the correct unit airflow pat tern REGULAR DEALER MAINTENANCE In addition to the type of routine maintenance you might be willing to perform your unit should be inspected regularly by a properly trained service technician An inspection preferably each year but at
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