WIXLIB

MINI-SPLIT SYSTEMSMS8-ZO-36P4Lennox 8 Series3 Ton Multi-Zone Heat Pump - R-410ABulletin No. 210681September 2016P R O D U C T S P E C I F I C AT I O N SSupersedes January 2015SEER - 16.00MODEL NUMBER IDENTIFICATIONOUTDOOR UNITSMS 8 - ZO - 36 P 4 ASeries TypeMS Mini-SplitMinor RevisionNumber of Zones4 Four ZonesMajor RevisionVoltageP 208/230V-1phase-60hzUnit TypeZO Multi-Zone Heat Pump Outdoor UnitINDOOR UNITSNominal Cooling Capacity36 3 tonsMS 8 - hI - 09 P 1 ASeries TypeMS Mini-SplitMinor RevisionNumber of Zones1 One ZoneMajor RevisionUnit TypeHI Single Zone Heat Pump Indoor UnitVoltageP 208/230V-1phase-60hzNominal Cooling Capacity09 0.75 tons12 1 tons18 1.5 tons

FEATURES - OUTDOOR UNITSCONTENTSDimensions - Indoor Units. 15Dimensions - Outdoor Units. 14Features - Indoor Units. 4Features - Outdoor Units. 2Indoor Unit Air Throw Data. 13Installation Clearances. 15Model Number Identification. 1Optional Accessories. 9Ratings. 13Sound Data - Indoor. 13Sound Data - Outdoor. 13Specifications - Indoor Unit. 8Specifications - Outdoor Unit. 8System Matches. 11System Matches. 12System Matches - Line Set Usage. 10EQUIPMENT WARRANTYCompressor - Limited warranty for five years inresidential installations and one year in non-residentialinstallations.All other covered components - Five years inresidential installations and one year in non-residentialinstallations.Refer to Lennox Equipment Limited Warranty certificateincluded with unit for specific details.APPLICATIONSSEER up to 16.00.HSPF up to 8.20.Single phase power supply.Outdoor unit sound levels as low as 59 dB.Ductless mini-split systems provide a wide range ofcapacities and applications and provide an alternativewhen a ducted system is impractical or cost prohibitive.Depending on capacity, multi-zone heat pumps allowtwo, three, or four indoor units to be connected to oneoutdoor unit.See AHRI System Matches.Units shipped completely factory assembled, internallypiped, and wired.Installer must set outdoor unit, hang indoor unit, connectrefrigerant lines, and make electrical connections tocomplete job.APPROVALSAHRI Certified to AHRI Standard 210/240-2008.Tested in the Lennox Research Laboratoryenvironmental test room.Rated according to U.S. Department of Energy (DOE)test procedures.Indoor and outdoor units and components withinbonded for grounding to meet safety standards forservicing required by UL and CEC.Units are ETL certified for the U.S. and Canada.Meets 2014 Florida Building Code Wind Design Criteria: Ultimate Wind Speed – 186 miles per hour Risk Categories – III and IV Wind Exposures – C and D Mean Roof Heights – Up to 60 feet above groundREFRIGERATION SYSTEMR-410A RefrigerantNon-chlorine, ozone friendly, R-410A.Unit pre-charged with refrigerant.Outdoor CoilAluminum fins fitted to copper tubes.Wire grille guard provided.Outdoor FanDirect drive fan moves large air volumes uniformlythrough entire condenser coil for high refrigerant coolingcapacity.Fan guard provided.Refrigerant Line Connections, Service ValveFlare connection lines are located on side of unitcabinet.Fully serviceable brass service valve prevents corrosionand provide access to refrigerant system. Shut-off valvecan be fully shut off while 2-way service valve (withservice port) may be accessed to manage refrigerantcharge while servicing system.NOTE - Special Male Flare Adaptor is required to checkoperating pressures. See Optional Accessoriestable.COMPRESSORVariable Frequency Rotary CompressorTwin rotary compressor features high efficiencyoperation.Balanced for reduced vibration and quiet operation.Brushless DC motor uses powerful Neodymiummagnets, which are approximately 15-20 timesstronger than ferrite magnets used in conventional ACcompressors.Compressor Crankcase HeaterProtects against refrigerant migration that can occurduring low ambient operation.MS8-ZO-36P4 - 3 Ton Multi-Zone Mini-Split Heat Pump Systems / Page 2

FEATURES - OUTDOOR UNITSCONTROLSDC Inverter ControlProvides continuous operation, while adjusting capacityaccording to room temperature.The accurate sensing of cooling or heating loadsprevents frequent changes in capacity and ensuresefficient, economical operation.Outdoor Unit MicroprocessorElectronic expansion valve control.Automatic compressor timed-off protection (3 minutes).Automatic fan delay in heating mode after coil is warm.Temperature sensor(s).LEDs on control display error codes and assist introubleshooting.Communication port to indoor unit.4-Way reversing valve.Electronic Expansion ValveFurnished on all models.Compressor Overcurrent ProtectionOvercurrent protection can result due to any of thefollowing: The ambient temperature is too high Locked rotor on the compressor Outdoor air is blocked or restrictedCondenser High Temperature ProtectionCondenser high temperature can occur due to any ofthe following conditions: High outdoor ambient Outdoor fan blocked Outdoor coil blockedThe outdoor coil thermistor continuously monitorsthe temperature and communicates with themicroprocessor.Depending on the temperature measured, thecompressor will be allowed to increase the frequencyif needed to meet the load or is forced to run at thecurrent or reduced frequency. If the temperature getsexcessively high the compressor will be de-energizedas shown below:When the outdoor coil temperature drops to 124ºF, theunit will resume normal operationsNOTE - In heating mode the indoor fan is de-energized60 seconds after the compressor is deenergized.High Pressure Discharge Temperature ProtectionThe compressor discharge temperature can be high dueto any of the following: Low refrigerant charge Blocked capillaryThe compressor discharge line thermistor continuouslymonitors the temperature and communicates with themicroprocessor.Depending on the temperature measured, thecompressor will be allowed to increase the frequencyto meet the load or is forced to run at the current orreduced frequency. If the temperature gets excessivelyhigh, the compressor will be de-energized. When thecompressor discharge temperature drops below 194ºF,the unit will resume normal operations.Intelligent Power Module (IPM) ProtectionProtects the unit from any of the following conditions: L oss of cooling to the heat sink High ambient temperature L ow voltageTerminal StripFurnished for easy wiring connections.Defrost ControlDefrost cycle is automatically enabled if there is a buildup of frost on the outdoor coil. Outdoor fan and indoorblower operation is terminated during the defrost cycle.H1 is displayed on the indoor unit panel on the frontcover during a defrost cycle.Reversing Valve4-way interchange reversing valve effects a rapidchange in direction of refrigerant flow resulting in quickchangeover from cooling to heating and vice versa.Valve operates on pressure differential between outdoorunit and indoor unit of the system.OUTDOOR UNIT CABINETConstructed of heavy gauge steel.Tabs on unit base allow secure mounting to slab.Condensate drain outlets furnished on unit base forproper drainage. Drain connector (1 in.) furnished.Access cover for power and control wiring connections.Access cover for service valves.MS8-ZO-36P4 - 3 Ton Multi-Zone Mini-Split Heat Pump Systems / Page 3

FEATURES - INDOOR UNITSINDOOR UNIT CABINETHigh impact plastic cabinet.Condensate drain outlets furnished on unit base. Drainmust be field furnished.Unit Display Panel (on Indoor Unit) Heat Indicator Cool Indicator Temperature/Error Code Power/Run Dehumidify Mode Infrared Signal Receptor (for wireless remotecontrol)Unit display can be turned off using the wireless remotecontrol.Wall Mounting PlateFurnished for easy wall mounting of the indoor unit. Seedimension drawing.Air Deflection LouversHorizontal Louvers default to the cooling or heatingposition when the unit is operating.Horizontal louvers can be set to a preset oscillatingrange or fixed position by pushing the “LOUVERSETTING” button ( ) on the wireless remote control.Four oscillating settings and five fixed position settings.Full oscillating is the default setting when buttonpushed.Vertical louvers can be manually adjusted to direct theairflow for optimal comfort.Easy filter access.INDOOR COILCopper tubes fitted to aluminum fins.High efficiency wraparound design.Condensate drain line (3 ft.) with barbed end isfurnished with the indoor unit.Drain line can be located on left side, right side, left rear,right rear (recommended) or bottom of unit.BLOWERDual cross-flow centrifugal blower.Aerodynamic spiralled blades for increased airflow andreduced sound levels.Turbo FunctionUnit runs at maximum speed to cool or heat the areaquickly.Cold Blow PreventionPrevents cold air from blowing into a conditioned spaceduring heating mode if the following occurs: I f coil temperature is less than 106 F and indoorair temperature is less than 75 F there is a threeminute time delay before blower runs at low speedfor five minutes. I f coil temperature is equal to or more than 106 Fand room temperature is equal to or more than75 F blower runs at low speed for five minutes.FILTERCleanable filter furnished as standard.CONTROLSIndoor Unit MicroprocessorContains all necessary components to control system.Terminal StripFurnished for easy wiring connections.Indoor Coil Freeze ProtectionWhen the unit is operating in the COOL orDEHUMIDIFICATION MODE, the indoor coil may freezedue to any of the following: Low system charge Reduced indoor airflow Restricted refrigerant flow Low ambient temperature (outdoor) Low load (indoor)The indoor coil thermistor monitors the coil temperaturecontinuously. Any time the coil temperature drops below30 F, the compressor and the outdoor fan (30 secondslater) will be switched off until the coil temperature risesabove 43 F and the compressor was off for a minimumof 3 minutes.Auto Button OperationIf the wireless remote control is lost, damaged, or thebatteries are exhausted, the AUTO button located insidethe front cover on the indoor unit can be used to run theunit.Auto Settings: Cooling Mode (setpoint 77 F) Heating Mode (setpoint 68 F) Fan Only Mode (runs continuously) Fan Speed (Auto) Oscillate (On)MS8-ZO-36P4 - 3 Ton Multi-Zone Mini-Split Heat Pump Systems / Page 4