709008-A S3BM-120G Split System User manual.indd
Contents
1. 4 Heating Operaligii AN 3 Brazing Operations 4 Operating the Indoor Blower Continuouslly 3 GENERAL INFORMATIOLN 4 System SHUtdOWN coooccccconcocnnonccononnncononononnnonanonnnnnos 3 Condensing Unit 4 Liquid and Suction Lines J ua ausasuawsas 4 SYSTEM MAINTENANCE iii 3 Field Connections for Electrical Supply 4 Regular CleaninQ coconccconncccononcccnocccnnanannnanacananacanano 3 Motor Lubrication a 3 SITE PREPARATIOLNN 4 Unpacking the Equipment 4 TROUBLESHOOTING 3 Inspect For Damage 4 Preferred Location Of The Outdoor Unit 4 Facility Prerequisites 4 Minimum Circuit Ampacity 5 Maximum Fuse Circuit Breaker Size 5 INSTALLING THE OUTDOOR UNIT 5 Slab Mount a 5 Cantilever Mount 5 ROOF Mouft ua a aaa sasa sssaassasasasausa 5 INSTALLING THE INDOOR UNIT 5 CONNECTING REFRIGERANT TUBING2. 5 CN 5 Optional Equiprment U L u L Saa 5 ELECTRICAL REQUIREMENT S 6 Pre Electrical Checklist a a 6 Wiring Diagram Schematlic 6 Supply Control Circuit Wiring 6 Ene VOM AGE ses tatiana ae 6 Outdoor Unit Connections 6 Disconnect Switch oononnnnncncccccncnnnnnnnnnnnnnnnnnnnnnononononos 6 Optional Equipment UU u i ssssssawsas 6 Thermostat Connections a 6 Grounding gus iia tarada 7 STARTUP AND CHECKOLUT 7 Air Filters _ a a a 7 i rossii uu u u Susu ss 7 Outdoor Unit oooononncnncccncncncnncnnncncnncononononononononananananannns 7 System Cooling cooooccccccconocccccononnnonccnnnnnnnnconnnnnnnccnnonons 7 Short Cycle Protection 7 Heating nersini 7 Indoor Blower a a 7 Adjustment Of Refrigerant Charge 8 Refrigerant Charging Chart 8 Optional EquipMeM ooocococnococononcconacoconananananacnnana caninos 8 ACCESSORIES zulu uu u 2 Saadani 8 Condensing Unit u us aa a 8 USER S INFORMATION
3. Figure 2 page 10 for correct system charging and the Orifice Usage Chart Table 1 for correct restrictor sizes Optional Equipment A functional checkout should be performed in accordance with the checkout procedures supplied with the equipment ACCESSORIES Condensing Unit Low Ambient Kit 913549A Maintains system pressures during low ambient conditions 8 PHYSICAL AND ELECTRICAL SPECIFICATIONS OUTDOOR UNITS 9 E E R High Efficiency 380 Volt Three Phase 50Hz Gross Cooling Capacity 122 500 NET Cooling Capacity 117 000 Rated Airflow CFM 3 600 Efficiency E E R Btu Watt Volts Phase Hz Voltage Range Min Max Performance Data 380 420 3 50 360 440 20 1 24 5 Total Amps Electrical Data Min Circuit Ampacity S h NI oa gt h N ojojo Delay Fuse max 1 Wire Size Max Length AWG 60 C Cu Wire Size Max Length AWG 75 C Cu Area Coil Rows FPI Tube Diameter Volts Phase Hz Q 31 94 3 8 O D 380 420 3 50 Fan Motor Horsepower Full Load LRA Diameter Pitch Blades Component Data Fan Blade RPM CFM Max Total 30 19 3 900 8 000 Voltage Phase Hz 380 420 3 50 model zR Compressor Data Refrigerant Suction Line Length O D Liquid Line all lengths 5 8 O D Circuits Qty 1 Refrigerant Charge Holding Total System with R 22 Ounces 25 Lineset 2 Weight Approximate Ibs Net capacity includes indoor blower motor heat deduction Gross capacity
4. does not include indoor blower motor heat deduction 1 HACR Type circuit breakers may be used 2 Add 9 0 oz of refrigerant per 5ft of additional lineset 3 Requires 1 3 8 to 1 1 8 reducer from unit to line Table 2 S3BM 120G Electrical Specifications Opl sel oel 4 B3g injei duu l pinbi1 sz ral GLL OLL SOL 00 56 06 58 08 Sl _ _ _ T a x r Oo v rPrn n 02 59 A1n 9 No q usym 1ueJ BIJJ 1 anno anoqe UBUM 1lueJ8BlJ 1 anQUay paads yBIH siajpueyH Jy UOL 0 S OM UJIA yeys Buibseyy zH0S ud A08 DOZL INGES OSI 091 L OL 08 061 ooz az ozz oez opz osz o9z ozz ogz o6z oog 1 ore oze oee 1 opg ISd inss id pinbiy Figure 2 S3BM 120G Charging Chart 10 6080 084801 seoejday 39WL10A H9IH nOs V8Z80lLZ JOVANA NO1 HOOGdNI HOS AF2 SNIHIA 01313 aN3 991 I LOVINOO 9WITOA I VIS XlddNS 3SVHd E 037081 H ango r Ha I 9n1 NIANNOY I HOLIMS HOLIMS Al ul A 34NSSIVA 3UNSSIVA I HDIH 1918 LOSV H3WI1 37949 YAWHOASNVYL LHOHS ILNV I I I I AYYNIHd I I I I I yOSSIAMNOD I YAWYOASNVYL tiOSS3HdWOO I yoLovinoo HOLON NY4 HOOGLNO 918 Aa
5. the outdoor unit remains de energized 4 Wait 5 minutes and verify the outdoor unit energizes and that the temperature of the air supplied to the facility is cooler than ambient temperature Heating 1 If equipped with heating equipment lower the thermostat setpoint temperature to the lowest obtainable setting 2 Set the thermostat function switch to HEATING The indoor blower and outdoor unit should stop running 3 Increase the setpoint temperature of the thermostat to the maximum setting 4 Verify that the heating equipment has been energized i e fossil fuel burner operating etc and that the indoor blower energizes after a short period of time Feel the air being circulated by the indoor blower and verify that it is warmer than ambient temperature 5 Listen for any unusual noises If present locate and determine the source of the noise and correct as necessary Indoor Blower 1 Set the thermostat fan switch to ON 2 Verify that the indoor blower is operating and that airflow is not restricted 3 Set the fan switch back to AUTO WARNING If this unit is equipped with crankcase heaters Allow 24 hrs for heating of the refrigerant compressor crankcase prior to start up Failure to comply may result in damage or cause premature failure of the system Adjustment of Refrigerant Charge AN CAUTION Split system air conditioning equipment contains liquid and gaseous refrigerant under pressure Adjustment
6. until the fan switch is reset to AUTO Temperature z Selector SAS 7777 50 Z 80 Thermometer 50 60 70 ERSS FAN AUTOJ N an HEAT JE AUTO Fan Switch System Switch Figure 1 Typical Thermostat System Shutdown Set the thermostat system switch See Figure 1 to OFF and the thermostat fan switch to AUTO NOTE The system will not operate regardless of the temperature selector setting SYSTEM MAINTENANCE AN CAUTION Shut off all electrical power to the unit before performing any maintenance or service on the system Failure to comply may result in personal injury or death Proper maintenance is most important to achieve the best performance from the appliance and should be performed by a qualified service technician at least once a year Follow the maintenance schedule and the instructions below for years of safe trouble free operation Regular Cleaning e Clean or replace the indoor air filter at the start of each heating and cooling season and when an accumulation of dust and dirt is visible on the air filter e Remove any leaves and grass clippings from the coil in the outdoor unit being careful not to damage the aluminum fins e Check for obstructions such as twigs sticks etc Motor Lubrication AN CAUTION Do not over fill or oil a motor that is not factory equipped with oil tubes The compressor in this unit
7. 34NSSIYA HOIH AYNSSAYd MOI HOLIMS MOTISA Nv4 HOOdLNO el al MOTIZA a e d Hune yun sas uono loid ua 1m913n0 pue sani9edule JO y 9 GOL 10 lqel1ins sio19npuo2 asn salim juaua9e das 104 SUOI JEDIJIPOW eoid j 10 suononilsul u0 e 181SU 99S UOIJ99S JOOPNO WO 1SUIIOJSUEA AZ ISN AINO 01 p 1IA91 p lJipouu aq pinoys s19u110 SUB A YN9419 JO1JUOD Ape paddinba 10398 M 19 puey 11y 9o9eulny aJAIND UD SINIJINPUOI s p lu ui biun z oldui3 Z AjUO sio1l9npuo2o Jaddos sn suon o uuo2o Ajddns ios u91 9 119 9 118 ap JURAR JURINOD a 1 dno2o L BUIDIAIaS 9 0190 19MOd 8 JD9UUOISIJ SALON ZH 0S seud HOA 08 1011935 JOOPINQ 4SUONIPUOJ Aly tu ls s yids INVYSVIG SNIHIA iagram ing D Ir S3BM 120G Wi 3 igure F 11 PERFORMANCE CERTIFIED m ARI Standard 340 360 Unitary Large HP NORDYNE Specifications and illustrations subject to change without notice or incurring obligations O Fallon MO 709008A Printed in U S A 03 09
8. Outdoor Air Conditioner USER S INFORMATION AND INSTALLATION INSTRUCTIONS S3BM 120G High Efficiency Commercial Split System IMPORTANT Read this owner information thoroughly and become familiar with the capabilities and use of your appliance before attempting to operate or maintain this unit Keep this literature where you have easy access to it in the future If a problem occurs check the instructions and follow recommendations given If these suggestions don t eliminate your problem call your NORDYNE Servicing Contractor Service PRO Any additions changes or conversions required for the appliance to satisfactorily meet the application needs must be made by a qualified installer service agency or the gas supplier using factory specified and approved parts These instructions are primarily intended to assist qualified individuals experienced in the proper installation of this appliance Some local codes require licensed installation service personnel for this type of equipment Please read all instructions carefully before starting the installation DO NOT DESTROY PLEASE READ CAREFULLY AND KEEP IN A SAFE PLACE FOR FUTURE REFERENCE TABLE OF CONTENTS USER S INFORMATION INSTALLER S INFORMATION SAFETY INFORMATION 3 SAFETY INFORMATION 4 Pressures Within The System 4 eo E 2 ee x Labels Tags and Precautions
9. SAFETY INFORMATION Safety markings are used frequently throughout this manual to designate a degree or level of seriousness and should not be ignored WARNING indicates a potentially hazardous situation that if not avoided could result in personalinjury or death CAUTION indicates a potentially hazardous situation that if not avoided may resultin minor or moderate injury or property damage OPERATING INSTRUCTIONS Cooling Operation 1 Setthe thermostat system switch Figure 1 to COOL or AUTO and the thermostat fan switch to AUTO 2 Setthe thermostat temperature selector to the desired temperature level The outdoor fan s compressor s and blower motor s will all cycle on and off to maintain the indoor temperature at the desired cooling level Heating Operation 1 Set the thermostat system switch Figure 1 to HEAT or AUTO and the thermostat fan switch to AUTO 2 Setthe thermostat temperature selector to the desired temperature level The furnace air handler blower motor s will cycle on and off to maintain the indoor temperature at the desired heating level Fan Mode Fan Mode is typically used to circulate the indoor air to equalize a temperature imbalance due to a solar load cooking or fireplace operation The continuous indoor blower operation can be obtained with the system switch set in any position including OFF Set the thermostat s fan switch to ON The indoor blower will start immediately and run continuously
10. connector for connecting the supply wires to the unit AN CAUTION Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation Verify proper operation after servicing If any of the original wire as supplied with the unit must be replaced it must be replaced with material of the same gauge and temperature rating See the unit wiring label for proper high and low voltage wiring Make all electrical connections in accordance with all applicable codes and ordinances e Use a separate branch electrical circuit for this unit A means of electrical disconnect must be located within sight of and readily accessible to the unit Overcurrent protection must be provided at the branch circuit distribution panel and sized as shown on the unit rating label and according to applicable local codes Outdoor Unit Connections The outdoor unit requires both power and control circuit electrical connections Refer to the wiring diagram Figure 3 page 11 for identification and location of outdoor unit field wiring interfaces Disconnect Switch An electrically compatible disconnect switch must be within line of sight of the outdoor unit This switch shall be capable of electrically de energizing the outdoor unit Optional Equipment e Optional equipment requiring connection to the power or control circuits must be wired in strict accordance with applicable local codes having jur
11. ed personnel attempt to install and or service the equipment Labels Tags Precautions When working with this equipment follow all precautions in the literature on tags and labels provided with the equipment Read and thoroughly understand the instructions provided with the equipment prior to performing the installation and operational checkout of the equipment Brazing Operations Installation of equipment may require brazing operations Safety codes must be complied with Safety equipment e g safety glasses work gloves fire extinguisher etc must be used when performing brazing operations GENERAL INFORMATION This unit has been designed and tested for capacity and efficiency in accordance with A R l 340 360 Standards This unit will provide many years of safe and dependable comfort providing it is properly installed and maintained With regular maintenance this unitwill operate satisfactorily year after year Abuse improper use and or improper maintenance can shorten the life of the appliance and create unsafe hazards To achieve optimum performance and minimize equipment failure it is recommended that periodic maintenance be performed on this unit The ability to properly perform maintenance on this equipment requires certain mechanical skills and tools 4 Please consult your dealer for maintenance information and availability of maintenance contracts Please read all instructions before installing the uni
12. erty damage personal injury or death it is the rigger s responsibility to ensure that whatever means are used to hoist the unit are safe and adequate e The lifting equipment must be adequate for the load Refer to Table 2 page 9 for unit weights The unit must be lifted from the holes in the base rails using cables or chains e Keep the unit in an upright position at all times The method of mounting should be designed so as not to overload roof structures or transmit noise to the interior of the structure Refrigerant and electrical lines should be routed through suitably waterproofed openings to prevent water leaking into the structure INSTALLING THE INDOOR UNIT The indoor section should be installed before proceeding with routing of refrigerant piping Consult the installation instructions of the indoor unit i e air handler furnace etc for details regarding installation CONNECTING REFRIGERANT TUBING BETWEEN THE INDOOR AND OUTDOOR UNIT General Once outdoor and indoor unit placement has been determined route refrigerant tubing between the equipment in accordance with sound installation practices e When connecting refrigerant linesets together it is recommended that dry nitrogen be flowing through the joints during brazing This will prevent internal oxidation and scaling from occurring e Refrigerant tubing should be routed in a manner that minimizes the length of tubing and the number of bends in
13. is factory sealed and does not require lubrication If the furnace air handler blower motor s and the outdoor unit fan motor s have oil tubes at the motor bearings apply 10 drops of SAE No 20 motor oil to each oil tube before each cooling season TROUBLESHOOTING If the unit fails to operate check the following The thermostat is properly set See Cooling Operation for air conditioning or Heating Operation for furnace or air handler e The unit disconnect fuses are in good condition and the electrical power to the unit is turned on INSTALLER S INFORMATION SAFETY INFORMATION Safety markings are used frequently throughout this manualto designate a degree or level of seriousness and should not be ignored WARNING indicates a potentially hazardous situation that if not avoided could result in personalinjury or death CAUTION indicates a potentially hazardous situation thatif not avoided may resultin minor or moderate injury or property damage N WARNING Shut off all electrical power to the unit before performing any maintenance or service on the system Failureto comply may resultin personal injury or death Pressures within the System Split system air conditioning equipment contain liquid and gaseous refrigerant under pressure Installation and servicing of this equipment should be performed by qualified trained personnel thoroughly familiar with this type of equipment Under no circumstances should non qualifi
14. isdiction and the installation instructions provided with the equipment e Optional Equipment e g liquid line solenoid valves twinning kit low ambient etc should be installed in strict accordance with the manufacturer s installation instructions Thermostat Connections Thermostat connections should be made in accordance with the instructions supplied with the thermostat and with the instructions supplied with the indoor equipment Grounding AN CAUTION The unit cabinet must have an uninterrupted or unbroken electrical groundto minimize personal injury if an electrical fault should occur This ground may consist of electrical wire or approved conduit when installed in accordance with national or local codes Do not use gas piping as an electrical ground This unit must be electrically grounded in accordance with local codes Proper grounding is accomplished by using the grounding lug provided in the control box STARTUP AND CHECKOUT AN CAUTION Shut off all electrical power to the unit before performing any maintenance or service on the system Failure to comply may result in personal injury or death Air Filters Ensure air filters are clean and in place prior to operating the equipment Thermostat Set the room thermostat function switch to OFF fan switch to AUTO and move temperature setpoint to its highest setting Prior to applying electrical power to the outdoor unit verify that the uni
15. le the additional load imposed by this equipment V For minimum circuit ampacity and maximum overcurrent protection see the unit rating plate Wiring Diagram Schematic A wiring diagram schematic is located on page 11 of this manual and on the inside cover of the electrical box of the outdoor unit IMPORTANT NOTE The installer should become familiar with the wiring diagram schematic before making any electrical connections to the outdoor unit Supply Control Circuit Wiring e The outdoor unit is equipped with a 24 VAC Class Il transformer for low voltage circuit control All wiring must comply with applicable local codes having jurisdiction e Units are shipped factory wired for 380 volt operation See unit data label for proper incoming field wiring e When using two air handlers refer to twinning instructions 707973 for proper low voltage control wiring COPPER WIRE SIZE AWG 1 Voltage Drop Supply Wire Length Feet Supply Circuit Ampacity Table 1 Copper Wire Size Line Voltage Electrical power wiring must be made in accordance with all applicable local codes and ordinances e Provide power supply for the unit in accordance with the unit wiring diagram and the unit rating plate e Connect the line voltage leads to the terminals on the contactor inside the control compartment Use only copper wire for the line voltage power supply to this unit Use proper code agency listed conduit and a conduit
16. of refrigerant charge should only be attempted by qualified trained personnel thoroughly familiar with the equipment Under no circumstances should the homeowner attempt to install and or service this equipment Failure to comply with this warning could resultin equipment damage personal injury or death NOTE The following Refrigerant Charging Chart is only applicable to matched assembly utilizing two 5 0 ton air handlers sku 904374D with the blower set on high speed It is recommended this matched system only be operated with indoor blower settings on high speed If medium airflow setting is selected special precautions should be taken to prevent possible coil freeze up for low outdoor ambient and low indoor load operation Assemblies of indoor coils and outdoor units not listed are not recommended and deviations from rated airflows or non listed equipment combinations may require modifications to the expansion device s and refrigerant charging procedures for proper and efficient system operation Check the system for leaks including the lineset and the brazed joints Pressurize the system with nitrogen and apply a soap and water solution to each joint or union with a small paintbrush NOTE If bubbling is observed the connection is not adequately sealed MODEL NUMBER ORIFICE SIZE 0 093 Table 1 Preliminary Orifice Usage 9 E E R Commercial Air Conditioner Refrigerant Charging Chart Refer to Refrigerant Charging Chart
17. t Condensing Unit Each condensing unit is shipped with a refrigerant holding charge adequate to maintain a positive pressure to keep out contaminants NOTE Do not use any portion of the charge for purging or leak testing Liquid and Suction Lines Refrigerant grade copper tubing should be used when installing the system Refrigerant suction line tubing should be fully insulated When condensing unit is matched with two air handlers two coils or a dual circuit evaporator coil refrigerant tubing should be branched between both evaporator coils or circuits using equal lengths of tubing to maintain equal evaporator circuit performance Field Connections for Electrical Power Supply All wiring must comply with applicable local codes having jurisdiction The minimum size of electrical conductors and circuit protection must be in compliance with information listed on the outdoor unit data label SITE PREPARATION Unpacking Equipment Remove the cardboard carton and User s Manual from the equipment Take care notto damage the tubing connections when removing the carton Inspect for Damage Inspect the equipment for damage prior to installing the equipment at the job site Ensure coil fins are straight and if necessary comb fins to remove flattened and bent fins Preferred Location of the Outdoor Unit Conduct a survey of the job site to determine the optimum location for mounting the outdoor unit Overhead obstructions poorly
18. t has been properly and securely grounded and that power supply connections have been made at both the facility power interface and outdoor unit Outdoor Unit Verify the outdoor coil and top of the unit are free from obstructions and debris and all equipment access control panels are in place Using extreme caution apply power to the unit and inspect the wiring for evidence of open shorted and or improperly wired circuits System Cooling 1 Set the thermostat system switch to COOL and the fan switch to AUTO 2 Lower the thermostat temperature switch below room temperature and verify that the refrigerant pressures are in order NOTE If refrigerant pressures are abnormal and the condenser fan is rotating backwards shut off main power to the unit and switch any two field wires at the disconnect DO NOT alter unit wiring 3 Listen for any unusual noises Locate the source and correct as needed 4 Allow the unit to run After several minutes set the temperature selector above room temperature 5 Verify that the fan blower and compressor cycle off with the thermostat Short Cycle Protection 1 Set the system in COOLING mode Note the setpoint temperature setting of the thermostat and gradually raise the setpoint temperature until the outdoor unit and indoor blower de energize 2 Immediately lower the setpoint temperature of the thermostat to its original setting 3 Verify that the indoor blower is energized and that
19. the tubing e Refrigerant tubing should be supported in a manner that the tubing will not vibrate or abrade during system operation Tubing should be kept clean of foreign debris during installation e Every effort should be made by the installer to ensure thatthe field installed refrigerant containing components of the system have been installed in accordance with these instructions and sound installation practices to insure reliable system operation and longevity e The maximum recommended interconnecting refrigerantline length is 75 feet and the vertical elevation difference between the indoor and outdoor sections should not exceed 20 feet If precise forming of refrigerant lines is required a copper tubing bender is recommended Avoid sharp bends and contact of the refrigerant lines with metal surfaces Optional Equipment Optional equipment such as liquid line solenoid valves twinning kit low ambient etc should be installed in strict accordance with the manufacturer s installation instructions ELECTRICAL REQUIREMENTS AN CAUTION Shut off all electrical power to the unit before performing any maintenance or service on the system Failure to comply may resultin personal injury or death Pre Electrical Checklist y Verify that the voltage frequency and phase of the supply source are the same as those specified on the unit rating plate y Verify that the service provided by the utility is sufficient to hand
20. ventilated areas and areas subject to accumulation of debris should be avoided The outdoor unit should be installed no closer than 18 inches from the outside walls of the facility and in an area free from overhead obstructions to ensure unrestricted airflow through the outdoor unit Facility Prerequisites Electrical power supplied to the unit must be adequate for proper operation of the equipment The system must be wired and provided with circuit protection in accordance with local building codes Minimum Circuit Ampacity Electrical wiringto the equipment mustbe compatible and in compliance with the minimum circuit ampacity listed on the outdoor unit data label Maximum Fuse Circuit Breaker Size Circuit protection for the outdoor unit must be compatible with the maximum fuse circuit breaker size listed on the outdoor unit data label INSTALLING THE OUTDOOR UNIT Slab Mount The site selected for a slab mount installation requires a stable foundation and one not subject to erosion The slab should be level and anchored if necessary prior to placing the equipment on the slab Cantilever Mount The cantilever mount should be designed with adequate safety factor to support the weight of the equipment and for loads subjected to the mount during operation Installed equipment should be adequately secured to the cantilever mount and levelled prior to operation of the equipment Roof Mount N WARNING To avoid the risk of prop
Download Pdf Manuals
Related Search