Trane Horizon OAB Series Installation, Operation And Maintenance Manual Download Page 15

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Unit Clearances, Curb Dimensions, and Dimensional Data

OAU-SVX005C-EN

Direct-Fired OAG Units

Unit Clearances

Curb Dimensions

Dimensional Data

Figure 4.

Typical installation clearances for direct-fired
OAG unit (in.)

Figure 5.

Unit curb data for direct-fired OAG tons (in.)

70.500

22.625

21.000

8.750

15.000

25.000

RETURN

SUPPL

53.000

8.750

117.500

23.375

35.375

11.875

Figure 6.

Unit dimensional data for direct-fired OAG
(in.)

121.371

66.096

ELECTRIC

DISCONNECT

SWITCH

THROUGH BASE

ELECTRIC

74.000

17.323

33.751

121

3.078

GAS INLET

5.5852

Summary of Contents for Horizon OAB Series

Page 1: ...e chauffage de ventilation et de climatisation CVC présentent un danger et requièrent des connaissances et une formation spécifiques Une installation un réglage ou une modification inappropriés d un équipement par une personne non qualifiée peut provoquer des blessures graves voire la mort Lors de toute intervention sur l équipement respectez les consignes de sécurité figurant dans la documentatio...

Page 2: ...e service procedures In addition some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants Know the applicable laws and follow them The three types of advisories are defined as follows WARNING Indicates a potentially hazardous situation which if not avoided could result in death or serious injury CAUTIONs Indicates a pote...

Page 3: ...s graves voire mortelles Afin de se prémunir d éventuels risques électriques mécaniques et chimiques les techniciens DOIVENT respecter les consignes préconisées dans le présent manuel sur les étiquettes et les autocollants ainsi que les instructions suivantes Avant d installer réparer cette unité les techniciens doivent IMPÉRATIVEMENT porter tout l équipement de protection individuelle EPI recomma...

Page 4: ...ène sous haute pression Avant d ouvrir le circuit récupérez le fluide frigorigène pour éliminer toute pression dans le circuit Consultez la plaque constructeur de l unité pour connaître le type de fluide frigorigène employé Utilisez uniquement des fluides frigorigènes substituts et additifs agréés WARNING Hazard of Explosion and Deadly Gases Failure to follow all proper safe refrigerant handling p...

Page 5: ...ue 4 Avertissez immédiatement votre fournisseur de gaz WARNING Hazardous Service Procedures Improper installation adjustment alteration service or maintenance can cause property damage injury or death Read the installation operating and maintenance instructions thoroughly before installing or servicing this equipment AVERTISSEMENT Procédures d entretien dangereuses Une installation un réglage une ...

Page 6: ...llation 18 Ductwork 18 General Unit Requirements 18 Main Electrical Power Requirements 19 Condensate Drain Configuration 19 Filter Installation 19 Field Installed Power Wiring 20 Main Unit Power 21 Standard Wiring 21 Voltage Imbalance 21 Electrical Phasing Three Phase Motors 22 Compressor Crankcase Heaters 23 Main Unit Display and ReliaTel Controls 23 Field Installed Control Wiring 23 Control Powe...

Page 7: ...d Maintenance of Gas Ports 43 Final Process 43 Performance Data 45 Superheat and Refrigeration Circuit Data 49 Alarms and Troubleshooting 51 Microprocessor Control 51 System Alarms 51 Sensor Failure Alarm Display 51 RTRM Failure Modes 53 Airflow Troubleshooting 53 Direct Fired OAB and OAG Unit Flame Relays 400 MBh 54 Direct Fired OAG Unit Flame Relays 400 MBh 55 Appendix 59 OAU Filter Guide 59 ...

Page 8: ... Circuit D Variable Speed Scroll 1st Circuit Only E Variable Speed Scroll 1st and 2nd Circuit Digit 14 Condenser 0 No Condenser 1 Air Cooled Fin and Tube 2 Air Cooled Fin and Tube w Head Pressure On Off Control 3 Water Cooled DX Condenser Copper Steel 4 Air Cooled Fin and Tube w Head Pressure Variable Speed 5 Air Cooled Microchannel 6 Air Cooled Microchannel w Head Pressure On Off Control 7 Air Co...

Page 9: ... and Exhaust Dampers 0 No Powered Exhaust 1 Direct Drive w VFD 2 Direct Drive VFD by Others 3 Belt Drive 4 Belt Drive w VFD 5 Special Motor Option 6 ECM w Backward Curved Plenum Fan 7 ECM w Backward Curved Plenum Fan and Barometric Relief Damper 8 ECM w Backward Curved Plenum Fan and Isolation Dampers w End Switch 9 Barometric Relief Dampers NO PFM Digit 28 Powered Exhaust Fan Wheel 0 No Powered E...

Page 10: ...cal Rating w Non Fused Disconnect K 65 KAIC Electrical Rating w Fused Disconnect L 65 KAIC Non Fused w Convenience Outlet M 65 KAIC Fused w Convenience Outlet N 65 SCCR Non Fused w Convenience Outlet Digit 37 Air Flow Monitoring 0 No Airflow Monitoring 1 Airflow Monitoring IFM Piezo Ring 2 Airflow Monitoring PE Piezo Ring 3 Airflow Monitoring Outdoor Air with Display and IFM w Piezo Ring 4 Airflow...

Page 11: ...m network The optional Main Unit Display and the RTRM are mounted in the Main Control Panel The Main Unit Display and RTRM receive information from sensors and customer binary contacts to satisfy the applicable request for ventilation cooling dehumidification and heating Indoor Fan Failure Input The Indoor Fan Failure Switch IFFS is connected to verify indoor fan operation When there is a call for...

Page 12: ...with hold open brackets will be factory installed Unit Inspection As soon as the unit arrives at the job site Avoid breathing fiberglass dust Use a NIOSH approved dust mist respirator Avoidcontactwiththeskinoreyes Wearlong sleeved loose fitting clothing gloves and eye protection WARNING Fiberglass Wool Product may contain fiberglass wool Disturbing the insulation in this product during installatio...

Page 13: ...ide panel service entrances and base pan openings e g conduit holes S A and R A openings and flue openings from the ambient air until the unit is ready for startup Note Do not use the unit s heater for temporary heat without first completing the startup procedure detailed in Startup p 29 The manufacturer will not assume any responsibility for equipment damage resulting from condensate accumulation...

Page 14: ...combustibles peut provoquer un incendie pouvant résulter en des blessures corporelles graves voire mortelles ou des dommages matériels Reportez vous à la plaque signalétique de l unité et aux instructions d installation pour connaître les distances appropriées Figure 1 Typical installation clearances for direct fired OAB unit in 84 72 36 36 48 36 Figure 2 Unit curb data for direct fired OAB tons i...

Page 15: ...clearances for direct fired OAG unit in Figure 5 Unit curb data for direct fired OAG tons in 72 84 36 36 48 36 70 500 22 625 21 000 8 750 15 000 25 000 RETURN SUPPLY 53 000 8 750 117 500 23 375 35 375 11 875 Figure 6 Unit dimensional data for direct fired OAG in 121 371 66 096 ELECTRIC DISCONNECT SWITCH THROUGH BASE ELECTRIC 74 000 17 323 33 751 121 3 078 GAS INLET 5 5852 ...

Page 16: ...r identique Procédez au réglage afin de soulever l unité de manière équilibrée WARNING Improper Unit Lift Failure to properly lift unit could result in unit dropping and possibly crushing operator technician which could result in death or serious injury and equipment or property only damage Test lift unit approximately 24 inches to verify proper center of gravity lift point To avoid dropping of un...

Page 17: ...e lifting hook and the top of the unit should be 7 feet 3 Test lift the unit to ensure it is properly rigged and balanced make any necessary rigging adjustments 4 Lift the unit and position it into place Remove fork pockets prior to setting on the curb 5 Downflow units align the base rail of the unit with the curb rail while lowering the unit onto the curb Make sure that the gasket on the curb is ...

Page 18: ...en necessary to work with live electrical components have a qualified licensed electrician or other individual who has been trained in handling live electrical components perform these tasks AVERTISSEMENT Procédures d entretien dangereuses Le non respect de toutes les précautions contenues dans ce manuel ainsi que sur les étiquettes et les autocollants peut entraîner des blessures graves voire mor...

Page 19: ...inged filter access panel on the air intake hood Filter type size and quantity are determined by selected filter option and unit size Note Do not operate the unit without filters Pleated filters are installed in the inlet hood in the direct fired unit Set the unit onto the curb check for level Ensure unit to curb seal is tight and without buckles or cracks Install and connect proper condensate dra...

Page 20: ...uirements for field wiring installation and grounding as described in NEC and your local state electrical codes AVERTISSEMENT Câblage sur site et mise à la terre corrects nécessaires Le non respect de la réglementation peut entraîner des blessures graves voire mortelles Il est IMPÉRATIF de confier l ensemble du câblage sur site à un électricien qualifié Un câblage sur site mal installé ou mal mis ...

Page 21: ...e performed by qualified personnel Improperly installed and grounded field wiring poses FIRE and ELECTROCUTION hazards To avoid these hazards you MUST follow requirements for field wiring installation and grounding as described in NEC and your local state electrical codes AVERTISSEMENT Câblage sur site et mise à la terre corrects nécessaires Le non respect de la réglementation peut entraîner des b...

Page 22: ...ques sous tension peut entraîner des blessures graves voire mortelles S il est nécessaire de travailler avec des composants électriques sous tension demandez à un électricien qualifié et agréé ou à une autre personne ayant la formation nécessaire pour manipuler des composants électriques sous tension d exécuter ces tâches Voltage Imbalance 100 X AV VD where AV AV Average Voltage Volt 1 Volt 2 Volt...

Page 23: ...All field wiring must conform to NEC guidelines as well as state and local codes Control Power Transformer WARNING Live Electrical Components Failure to follow all electrical safety precautions when exposed to live electrical components could result in death or serious injury When necessary to work with live electrical components have a qualified licensed electrician or other individual who has be...

Page 24: ...ectrical wires transporting DC signals in or around conduit housing high voltage wires AVERTISSEMENT Risque d électrocution Le non respect de cette consigne peut entraîner des blessures graves voire mortelles Avant toute intervention coupez l alimentation électrique y compris aux sectionneurs à distance Suivez scrupuleusement les procédures de verrouillage mise hors service préconisées pour empêch...

Page 25: ...ce from Unit to Control Recommended Wire Size 000 150 feet 0 45 7 m 22 gauge 0 33 mm2 151 240 feet 46 73 1 m 20 gauge 0 50 mm2 241 385 feet 73 5 117 3 m 18 gauge 0 75 mm2 386 610 feet 117 7 185 9 m 16 gauge 1 3 mm2 611 970 feet 186 2 295 7 m 14 gauge 2 0 mm2 Figure 12 OAUTS Connection B ...

Page 26: ... Display and configure the Outdoor Air Unit Main Unit Display system setpoints and operating parameters Important This section is intended to provide guidelines for navigation through the remote operator display screens For additional control system information refer to Integration Guide Tracer UC600 Programmable Controller for Packaged Outdoor Air Unit BAS SVP18 EN The unit is configured at the f...

Page 27: ... Air Temperature Local Analog Input Economizer Mode Disabled Enabled N Evap Leaving Temp Local Analog Input Heat Capacity 0 100 N Heating Output Command 0 100 N Heat 1 Command Off On N Heat 2 Command Off On N Inducer Command Off On N Gas Valve Status Binary Input HGRH Command 0 100 N OA Damper End Switch Binary Input Outdoor Air Damper Command Closed Open N OAD Position Local Binary Input Outdoor ...

Page 28: ...int 60 F 80 F 90 F Y UNOCC Space Dewpoint Setpoint 49 F 65 F 68 F Y UNOCC Space Heating Setpoint 50 F 60 F 70 F Y System Setup Program Control Discharge Air Control Space Control Space Control Y Compressor Count 0 0 4 N Heater Count 0 0 2 N Split Manifold Burner Not Installed Installed Installed N Return Air Damper Option Not Installed Installed Installed N Space Temp Humidity Sensor Installed Not...

Page 29: ...essures graves voire mortelles Les techniciens afin d être protégés des éventuels risques électriques mécaniques et chimiques DOIVENT suivre les précautions contenues dans ce manuel sur les étiquettes et les autocollants ainsi que les instructions suivantes Sauf indication contraire coupez toute l alimentation électrique y comprisles disjoncteurs à distance et déchargez tous les dispositifs de sto...

Page 30: ...r profile opening at ordered unit SCFM airflow The burner baffles should not be adjusted Outdoor Air conditions will cause the measured P to vary Refer to Table 6 to see the acceptable measured pressures that may be read at various outdoor air conditions Measure and record burner pressure drop Note If burner pressure drop is not within the range shown in Table 6 refer to Airflow Troubleshooting se...

Page 31: ...N Indoor Fan ON R6 ON Call for Heating ON R7 ON Ignition Process begins and requires proof of flame at burner to continue R8 ON Ignition Process Proven 4 Test Operating Heating Modes Note Heating default control signal is 25 percent for 90 seconds following successful ignition Important This test is designed to assure adequate stable gas pressure is available when burner is firing atmaximum capaci...

Page 32: ... Train i Manual Shut off Valves 2 MSO1 and MSO2 ii Main Gas Regulator 1 GR iii Main Gas Valves Automatic Safety On Off Control 2 GV1 and GV2 iv Modulating Gas Valve MGV v Gas Pressure Gauges Gas Supply Pressure PG1 Burner Inlet Pressure PG2 c Burner Control Operation The RM7895 EC7895 and RM7896 have the operating sequence as shown in Figure 15 p 34 and Figure 16 p 34 The LED provides positive vis...

Page 33: ... sequence to continue If a flame is not proven by the end of PFEP a safety shut down occurs With flame proven the ignition terminal 10 is energized This main flame establishing period MFEP begins when After ignition trials and with the presence of flame the main fuel valve terminal 9 is powered If a flameout occurs the relay module locks out or recycles depending on status of jumper JR2 within 0 8...

Page 34: ...able site configurable jumpers Table 7 Jumper options Jumper Description Intact Clipped JR1 Pilot Flame Establishing Period PFEP 10 seconds 4 seconds JR2 Flame Failure Action Recycle Lockout JR3 Airflow Switch 1LK Failure Recycle Lockout Figure 17 Relay module plug in diagram WARNING Combustible Materials Failure to maintain proper clearance between the unit heat exchanger vent surfaces and combus...

Page 35: ...pressures are within 5 percent of the pressures shown on Burner Data Plate Allow a minimum of 5 minutes of operation at 0 percent heating signal At ROD read and record Outdoor Air Temperature Discharge Air Temperature Burner P Record Gas Pressures PG1 PG2 Ignition Cycle Test Release Heating Control Signal Override Complete at least 5 calls for heat At each call for heat default heating start up si...

Page 36: ...re terminal connections are tight Remove any corrosion present on the exterior surfaces of the unit and repaint these areas Generally inspect the unit for unusual conditions e g loose access panels leaking piping connections etc Make sure that all retaining screws are reinstalled in the unit access panels once these checks are complete With the unit running check and record the ambient temperature...

Page 37: ...ow could result in coil damage DO NOT use any detergents with microchannel condenser coils Use pressurized water or air ONLY with pressure no greater than 600psi For additional information regarding the proper microchannel coil cleaning procedure refer to service bulletin RT SVB83 EN WARNING Hazardous Chemicals Failure to follow all safety instructions below could result in death or serious injury...

Page 38: ...r des blessures graves voire mortelles Les techniciens afin d être protégés des éventuels risques électriques mécaniques et chimiques DOIVENT suivre les précautions contenues dans ce manuel sur les étiquettes et les autocollants ainsi que les instructions suivantes Sauf indication contraire coupez toute l alimentation électrique y compris les disjoncteurs à distance et déchargez tous les dispositi...

Page 39: ...haft d Inspect all bearings and alignment Adjust if necessary e Inspect all V belts Replace if necessary f Inspect all electrical components connections and terminals Clean and tighten where necessary g Test ignition spark Adjust gap if necessary h Clean ignition electrodes and check for cracks i Testflamesafeguardrelayandreplacecomponents if necessary j Inspect all regulators relief valves motori...

Page 40: ... roller bearings should be lubricated Dampers Dampers should be inspected monthly daily in icy weather for securely fastened linkages and smooth operation If dampers are binding or excessively noisy then lubrication may be required Place one drop of 20 weight machine oil on each blade bearing and linkage ball joint Do not over lubricate and wipe any excess from the area Ensure to note that dampers...

Page 41: ...ON to apply pressure to the combination control 4 Record the pressure reading on the manometer then turn the valve OFF A loss of pressure indicates a leak If a leak is detected use asoapsolutiontocheckallthreaded connections Ifnoleak is found the combination control may be faulty and must be replaced before placing the appliance back in service Heater Maintenance At least a yearly inspection is re...

Page 42: ...rique y compris aux sectionneurs à distance Suivez scrupuleusement les procédures de verrouillage mise hors service préconisées pour empêcher tout rétablissement accidentel de l alimentation électrique WARNING Combustible Materials Failure to maintain proper clearance between the unit heat exchanger vent surfaces and combustible materials could cause a fire which could result in death or serious i...

Page 43: ...al Process For future reference you may find it helpful to record the unit data requested below in the blanks provided 1 Complete Unit Model Number _____________________________________________________ _____________________________________________________ _____________________________________________________ 2 Unit Serial Number _____________________________________________________ _______________...

Page 44: ...ig kPa Disch Press Psig kPa Liquid Press Psig kPa Super heat F C Sub cool F C Compr Oil Level Suct Press Psig kPa Disch Press Psig kPa Liquid Press Psig kPa Super heat F C Sub cool F C ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ...

Page 45: ...nt Control TXV TXV TXV Drain Connection Size in mm 3 4 20 3 4 20 3 4 20 Outdoor Fan Type Propeller Propeller Propeller Number Used 1 1 1 Diameter in mm 27 27 27 Drive Type Direct Direct Direct No Speeds 1 1 1 CFM m3 h 7 000 11 893 7 000 11 893 7 000 11 893 Number Motors 1 1 1 Motor HP kW per motor 1 0 0 75 1 0 0 75 1 0 0 75 Motor RPM 1140 1140 1140 Indoor Fan Type Backward Curved Backward Curved B...

Page 46: ...2 Refrigerant Control TXV TXV TXV TXV Drain Connection Size in mm 3 4 20 3 4 20 3 4 20 3 4 20 Outdoor Fan Type Propeller Propeller Propeller Propeller Number Used 1 1 1 1 Diameter in mm 27 27 27 27 Drive Type Direct Direct Direct Direct No Speeds 1 1 1 1 CFM m3 h 7 000 11 893 7 000 11 893 7 000 11 893 7 000 11 893 Number Motors 1 1 1 1 Motor HP kW per motor 1 0 0 75 1 0 0 75 1 0 0 75 1 0 0 75 Moto...

Page 47: ...ction Size in mm 3 4 19 1 3 4 19 1 3 4 19 1 3 4 19 1 Outdoor Fan Type Propeller Propeller Propeller Propeller Number Used 2 2 2 3 Diameter in mm 27 685 8 27 685 8 27 685 8 27 685 8 Drive Type Direct Direct Direct Direct No Speeds 1 1 1 1 CFM m3 h 14 000 23 786 14 000 23 786 14 000 23 786 21 000 35 679 Number Motors 2 2 2 3 Motor HP kW per motor 1 0 75 1 0 75 1 0 75 1 0 75 Motor RPM 1 140 1 140 1 1...

Page 48: ...nection Size in mm 3 4 19 1 3 4 19 1 3 4 19 1 3 4 19 1 Outdoor Fan Type Propeller Propeller Propeller Propeller Number Used 3 3 3 3 Diameter in mm 27 685 8 27 685 8 27 685 8 27 685 8 Drive Type Direct Direct Direct Direct No Speeds 1 1 1 1 CFM m3 h 21 000 35 679 21 000 35 679 21 000 35 679 21 000 35 679 Number Motors 3 3 3 3 Motor HP kW per motor 1 0 75 1 0 75 1 0 75 1 0 75 Motor RPM 1 140 1 140 1...

Page 49: ...Performance Data OAU SVX005C EN 49 Superheat and Refrigeration Circuit Data Figure 19 Refrigeration diagram Single compressor without reheat Figure 20 Refrigeration diagram Single compressor with reheat ...

Page 50: ...Performance Data 50 OAU SVX005C EN Figure 21 Refrigeration diagram dual compressor without reheat Figure 22 Refrigeration diagram dual compressor with reheat ...

Page 51: ...he display will register ALARM illuminate red and flash Important The space temperature sensor SPTC and space relative humidity sensor SPHC will read failed if they are not connected they will Alarm as In Fault Sensor Failure Alarm Display Press the Alarm button on the Home display of the Unit Display to display system sensor status as described in Table 16 and Table 17 p 52 WARNING Hazardous Serv...

Page 52: ...installation Humidity Wiring is polarity sensitive 42 Heat Failure Applies to 5 1 and 10 1 Gas Heaters Only Trips after heat command ON and no GV status offer 1 minute Refer to unit Service Facts heat control LED status legend No gas low gas pressure or high gas pressure to unit Unit Manual shutoffs closed Heater inducer failure Heat relay failure Loose or incorrect wiring Table 17 TOAU UC600 trou...

Page 53: ...ud rate on UC600 to 38 400 WARNING Live Electrical Components Failure to follow all electrical safety precautions when exposed to live electrical components could result in death or serious injury When necessary to work with live electrical components have a qualified licensed electrician or other individual who has been properly trained in handling live electrical components perform these tasks A...

Page 54: ...ates Next System Action Recommended Service Action OFF No Call for Heat Not applicable None Flash Fast Power up internal check Not applicable None Heartbeat Normal startup ignition sequence started including prepurge Not applicable None 4 Seconds ON then x flashes Device in run mode x flame current to the nearest μA Not applicable None 2 Lockout Failed trial for ignition Remain in lockout until Ca...

Page 55: ...NT Procédures d entretien dangereuses Le non respect de toutes les précautions contenues dans ce manuel ainsi que sur les étiquettes et les autocollants peut entraîner des blessures graves voire mortelles Les techniciens afin d être protégés des éventuels risques électriques mécaniques et chimiques DOIVENT suivre les précautions contenues dans ce manuel sur les étiquettes et les autocollants ainsi...

Page 56: ...ergized RM7895C D EC7895C RM7896C D Internal system fault occurred Purge card is removed Purge card is bad Main Flame Establishing Period MFEP RM7895C D EC7895C RM7896C D Airflow lockout feature is enabled and the airflow switch opens Ignition terminal is energized Ignition pilot valve terminal is not energized Main valve terminal is not energized Delayed main valve terminal is energized No flame ...

Page 57: ...ower Power Power Pilot Flame Main Alarm Power Pilot Flame Main Alarm Power Pilot Flame Main Alarm Power Pilot Flame Main Alarm Power Pilot Flame Main Alarm Burner Start 7 e t o N r o t o M r e w o l B r e n r u B Ignition5 Ignition Pilot Main Valve Operating Controls and Interlocks Limits and Burner Controller Closed to Airflow Switch Check6 C S F A o t d e s o l C k c o l r e t n I t u o k c o L ...

Page 58: ... Power Pilot Flame Main Alarm Power Pilot Flame Main Alarm Power Pilot Flame Main Alarm Burner Start 6 e t o N r o t o M r e w o l B r e n r u B Ignition8 Ignition Pilot Main Valve 2nd Stage Main Operating Controls and Interlocks Limits and Burner Controller Closed to Airflow Switch Check5 C S F A o t d e s o l C k c o l r e t n I t u o k c o L C S S g n i v o r P e m a l F k c e h C t r a t S e f...

Page 59: ...ickness MERV Qty Height Width 2 in Mist Eliminators 2 16 25 2 in 8 13 2 16 25 Table 22 OAG units Thickness MERV Qty Height Width 2 in Mist Eliminators 6 16 24 2 in 8 13 6 16 24 Note 2 in mist eliminators and 2 in MERV 8 filters are standard MERV 13 filter is optional ...

Page 60: ... and protect food and perishables and increase industrial productivity and efficiency We are a global business committed to a world of sustainable progress and enduring results ingersollrand com Ingersoll Rand has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice We are committed to using environmentally conscious ...

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