Carrier 50ZHB Owner's Manual
Contents
1. 50ZHB 13 SEER Single Packaged Heat Pump System C Carrier with Puron R 410A Refrigerant Single Phase turn to the experts 2 to 5 Nominal Tons Sizes 024 060 Owner s Information Manual G MMU AAI A05194 Fig 1 Unit 50ZHB 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 Address ACCESSORIES List type and model Phone Number Technician Name NOTE TO INSTALLER This manual must be left with the equipment owner SAFETY CONSIDERATIONS Improper installation adjustment alteration service maintenance or use can cause explosion fire electrical shock or other conditions which may cause death personal injury or property damage Consult a qualified installer service agency or your distributor or branch for information or assistance The qualified installer or agency must use factory authorized kits or accessories when modifying this product Refer to the individual instructions packaged with the kits or accessories when installing Follow all safety codes Wear safety glasses protective clothing and work gloves Use quenching2. 1067 mm clearance Maintenance and Care for the Equipment Owner Before proceeding with those things you might want to maintain yourself please carefully consider the following A WARNING FIRE EXPLOSION ELECTRICAL SHOCK 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 AND INSTALL A LOCK OUT TAG 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 excessive stress on the blower motor and can cause the motor to overheat and shut down This unit must have an air filter in place before it can be operated These filters should be located in at least one of 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 Table 1 indicates the correct indoor filter size for your unit Table 1 Indoor Air Filter Data Unit Size Filter Size 0
3. a properly trained service technician An inspection preferably each year but at least every other year should include the following 1 Inspection and if required cleaning of the outdoor and indoor coils 2 Inspection and if required cleaning of the indoor coil drain pan 3 Inspection and cleaning of blower wheel housing and motor 4 Inspection of all supply and return air ducts for leaks obstructions and insulation integrity Any problems found should be resolved at this time Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations Printed in U S A 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 assure proper connection 8 Inspection for leaks in the refrigerant circuit Pressure and temperature check to determine appropriate refrigerant charge 9 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 unit has a limited warranty Be sure to read the warra
4. cloth for brazing operations Have a fire extinguisher available Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit Consult local building codes the current editions of the National Electrical Code NEC NFPA 70 In Canada refer to the current editions of the Canadian electrical Code CSA C22 1 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 CAUTION These words are used with the safety alert symbol DANGER 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 unsafe 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 FIRE EXPLOSION HAZARD Failure to follow this warning could result in personal injury death and or property damage 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 ELE
5. injury death or property damage INJURY AND UNIT DAMAGE Do not poke sticks screwdrivers or any other object into revolving fan blades Copyright 2010 Carrier Corp 7310 W Morris St e Indianapolis IN 46231 The fan must be kept free of all obstructions to ensure proper cooling Contact your dealer for any required service Electrical Controls and Wiring Electrical controls are difficult to check without proper instrumentation 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 proper equipment If inadequate cooling is suspected contact your local dealer for service 4 WARNING EXPLOSION BURN 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 pattern Regular Dealer Maintenance In addition to the type of routine maintenance you might be willing to perform your unit should be inspected regularly by
6. 24 20x20x1 508x508x25 mm 030 20x24x1 508x610x25 mm 036 042 24x30x1 610x762x25 mm 048 060 24x36x1 610x914x25 mm When installing the new filter s note the direction of the airflow arrows on the filter frame 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 A WARNING FIRE AND UNIT OPERATION HAZARD Failure to follow this warning could result in personal injury death or 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 Motor Periodically check the condition of fan wheels and housings and fan motor shaft bearings Contact your dealer for the required annual maintenance Indoor and Outdoor Coils Cleaning of the coils should only be done by qualified service personnel 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 dealer Compressor All compressors are hermetically sealed and do not require periodic maintenance Condenser Fan A WARNING PERSONAL HAZARD Failure to follow this warning could result in personal
7. CTRICAL SHOCK 4 WARNING FIRE EXPLOSION HAZARD Failure to follow this warning could result in personal injury death or property damage ELECTRICAL SHOCK Do not use this unit if any part has been under water Immediately call a qualified service technician to inspect the unit and to replace any part of the control system which has been under water A WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death Before performing recommended maintenance be sure the main power switch to unit is turned off and a lock out tag is installed 4 CAUTION CUT HAZARD Failure to follow this caution may result in personal injury Sheet metal parts may have sharp edges or burrs Use care and wear appropriate protective clothing safety glasses and gloves when handling parts and servicing furnaces OPERATING YOUR UNIT The operation of your heat pump system is controlled by the indoor thermostat You simply adjust the thermostat and it maintains the indoor temperature at the level you select Most thermostats of heat pump systems have 3 controls a temperature control selector a FAN control and a SYSTEM or MODE control Refer to your thermostat owner s manual for more information To better protect your investment and to eliminate unnecessary service calls familiarize yourself with the following facts 1 During heating increasing the desired temperature setting more
8. nty carefully to determine the coverage for your unit Before you call for 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 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 or above the indoor temperature during heating season Be sure the SYSTEM switch or MODE control is in the COOL or HEAT and not OFF __ 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 unsatisfactory shut off the unit and call your dealer Edition Date 02 10 Catalog No OM50ZHB 01 Replaces NEW
9. r conditions such as heavy snow and freezing rain it is not uncommon for ice to build up on the unit grille This is normal for these weather conditions Do not attempt to remove the ice from the unit grille This condition will not affect the proper function of the unit and will clear within a few days During defrost mode your heat pump will automatically turn on the supplemental heat if equipped You may notice the indoor fan increase its speed Emergency Heating Mode In the event of primary unit heat failure the emergency heat mode allows your supplemental heating source to keep your home or office warm until your unit can be serviced Contact your dealer in the event of primary unit heat failure During Emergency Heat your thermostat will lockout the heat pump and turn on the supplemental heat if equipped You may notice the indoor fan increase its speed MAINTENANCE AND SERVICE This section discusses maintenance that should be performed by your dealer and care you as the owner may wish to handle for your new unit Routine Maintenance All routine maintenance should be handled by skilled experienced personnel Your dealer can help you establish a standard procedure 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
10. source Your system may also be equipped with a supplemental heating source such as electric heat On cold days and nights your system will automatically turn on the supplemental heat as needed in order to maintain the level of comfort you have selected When your heat pump needs additional heat to keep you comfortable your thermostat will turn on the supplemental heat if equipped When the thermostat calls for supplemental heat you may notice the indoor fan increase its speed Defrost Mode When your unit is providing heat to your home or office and the outdoor temperature drops below 45 F 7 2 C moisture may begin to freeze on the surface of the coil If allowed to build up this ice would impede airflow across the coil and reduce the amount of heat absorbed from the outside air So to maintain energy efficient operation your unit has an automatic defrost mode The defrost mode starts at a preset time interval of 60 minutes although it may be reset to 30 90 or 120 minutes Defrost will start at the preset time only if the ice is sufficient to interfere with normal heating operation After the ice is melted from the coil or after a maximum of 10 minutes in defrost mode the unit automatically switches back to normal heating operation Do not be alarmed if steam or fog appears at the outdoor unit during defrost mode Water vapor from the melting ice may condense into a mist in the cold outside air During certain weathe
11. than 2 F 1 1 C may cause the supplemental heaters to be turned on for a short period of time to satisfy the demand Needless use of the supplementary heat reduces potential energy savings 2 Ice or frost tends to form on the coil during winter heating operation Your unit is designed to automatically melt the ice When in this defrost cycle it is normal for steam or fog to rise from the outdoor unit and for water to drain from the outside of unit Do not be alarmed To start the unit 1 Turn on the electrical power supply to unit 2 Set MODE control to desired mode and select temperature To shut off unit NOTE Ifthe unit is being shut down because of a malfunction call your dealer as soon as possible 1 Set system MODE control to OFF 2 Turn off the electrical power supply to unit Cooling Mode With the SYSTEM or MODE control set to COOL your unit will run in cooling mode until the indoor temperature is lowered to the level you have selected On extremely hot days your unit will run for longer periods at a time and have shorter off periods than on moderate days Heating Mode With the SYSTEM or MODE control set to HEAT your unit will run in heating mode until the room temperature is raised to the level you have selected Of course your unit will run for longer periods to maintain a comfortable environment on cooler days and nights than on moderate ones Supplemental Heat Your unit is your primary heating
Download Pdf Manuals
Related Search