Carrier 40VMM007A 3 Series Installation And Maintenance Instructions Manual

11INSTALLATIONStep 1 — Unpack and Inspect Units — Units arepackaged for shipment to avoid damage during normal transitand handling. It is the receiving party’s responsibility to inspectthe equipment upon arrival. Any obvious damage to the cartonand/or its contents should be reported on the bill of lading and aclaim should be filed with the transportation company and thefactory. The unit should always be stored in a dry place and inthe proper orientation as marked on the carton.After determining the condition of the carton exterior, carefullyremove each unit from the carton and inspect for damage.Check to make sure that items such as accessory kit,thermostats, controller, etc. are accounted for whetherpackaged separately or shipped at a later date. Any damageshould be recorded, a claim should be filed with thetransportation company, and the factory should be notified. Inthe event a claim for shipping damage is filed, the unit,shipping carton, and all packing must be retained for physicalinspection by the transportation company. All units should bestored in the factory shipping carton with internal packaging inplace until installation.PROTECTING UNITS FROM DAMAGE Do not applyforce or pressure to the coil, piping, or drain stub-outs duringhandling. All units should be handled by the chassis or as closeas possible to the unit mounting point locations.The unit must always be properly supported. Temporarysupports used during installation or service must be adequate tohold the unit securely. To maintain warranty, protect unitsagainst hostile environments (such as rain, snow, or extremetemperature), theft, vandalism, and debris on the jobsite.Equipment covered in this manual is not suitable for outdoorinstallations. Do not allow foreign material to fall into drainpan. Prevent dust and debris from being deposited on motor,fan wheels, and coils. Failure to do so may have seriousadverse effects on unit operation, and in the case of motor andblower assembly, may result in immediate or premature failure.Failure of any unit caused by deposits of foreign material onthe motor or blower wheels will not be covered by themanufacturer’s warranty. Some units and/or job conditionsmay require some form of temporary covering duringconstruction.PREPARING JOBSITE FOR UNIT INSTALLATION Tosave time and to reduce the possibility of costly errors, set up acomplete sample installation in a typical room at the job-site.Check all critical dimensions such as pipe, wire, and ductconnections requirements. Refer to job drawings and productdimension drawings as required. Instruct all trades in theirparts of the installation. Units must be installed in compliancewith all applicable local code requirements.IDENTIFYING AND PREPARING UNITS Be sure powerrequirements match available power source. Refer to the unitnameplate and wiring diagram.In addition:• Check all tags on the unit to determine if shipping screwsare to be removed. Remove screws as directed.• Rotate the fan wheel by hand to ensure that the fan canrotate freely. Check for shipping damage and fanobstructions. Adjust blower motor as required.Step 2 — Position the UnitInstall the unit in a location that meets the followingrequirements:• Allow adequate space for installation, service clearance,piping, electrical connections, and necessary ductwork.For specific unit dimensions, refer to Table 2, Fig. 2, andFig. 3. Allow clearance according to local and nationalcodes.• Confirm that the ceiling is able to support the weight ofthe unit. See Table 2 for nominal weight.• There should be enough room within the false ceiling forinstallation and maintenance. See Fig. 13.• The false ceiling should be horizontal and level.• Install the unit in a location within the room that allowsuniform air flow in all directions.Fig. 13 —False Ceiling InstallationSelect the unit position with the following points in mind:• The unit should be installed in a position that is suitableto support the total weight of the unit, refrigerant piping,and condensate.• Proper access should be provided for refrigerant piping,EEV (electronic expansion valve), electrical box, andcondensate pump maintenance. A two foot clearance isrecommended all around the unit.• The unit should not be positioned directly above anyobstruction.• The unit must be installed square and level.• The condensate drain should have sufficient downwardslope (1 inch per 100 inches) in any horizontal runbetween the unit and drain. Maximum condensate lift is27- 1/2 inches.CAUTIONTo avoid equipment damage, do not lift unit by the drainpipe or refrigerant piping. Unit should be lifted using themounting brackets.DANGERUnits must not be installed where they may be exposed topotentially explosive or flammable atmosphere. If thisinstruction is not followed, a fire or explosion may result,causing property damage, injury, or loss of life.WARNINGThe ducting for the 7K (40VMM007A--3) and 9K(40VMM009A--3) models (supply and return air ducts)is intended for use in one room only. Do not installductwork from a single unit to multiple rooms for thesetwo models.IMPORTANT: Be sure that the ceiling grid is supportedseparately from the unit. The ceiling grid must not be sup-ported by any part of the unit or any associated wiring orpiping work.MINIMUM DRAINTILT 1/100 a40-1849