Trane Horizon OABD Installation, Operation And Maintenance Manual Download Page 6

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OAU-SVX02F-EN

Table of Contents

Model Number Descriptions

. . . . . . . . . . . . . . 8

General Information

. . . . . . . . . . . . . . . . . . . . 11

Overview of Manual . . . . . . . . . . . . . . . . . 11

Model Number Description . . . . . . . . . . . 11

Unit Nameplate . . . . . . . . . . . . . . . . . . . . 11

Compressor Nameplate . . . . . . . . . . . . . . 11

Unit Description . . . . . . . . . . . . . . . . . . . . 11

Indoor Fan Failure Input . . . . . . . . . . . . . 11

Low Pressure Control ReliaTel Control . 11

Refrigerant Circuits . . . . . . . . . . . . . . . . . 11

High Pressure Control ReliaTel Control . 11

Space Temperature / RH Sensor (Optional)
12

High Temperature Sensor . . . . . . . . . . . . 12

Outdoor Air Temperature and Relative Hu-
midity Sensor . . . . . . . . . . . . . . . . . . . . . . 12

Hot Gas Reheat . . . . . . . . . . . . . . . . . . . . . 12

100 Percent Outdoor Air Hood with Damper
and Filters . . . . . . . . . . . . . . . . . . . . . . . . . 12

Modulating Indirect Gas-Fired Burner . . 12

Through the Base Electrical with Disconnect
Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Through the Base Gas Piping . . . . . . . . . 12

Hinged Access Doors . . . . . . . . . . . . . . . . 12

Electric Heat . . . . . . . . . . . . . . . . . . . . . . . 12

Unit Inspection

. . . . . . . . . . . . . . . . . . . . . . . 13

First Aid Measures . . . . . . . . . . . . . . . . . . 13

Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Unit Clearances . . . . . . . . . . . . . . . . . . . . 13

Unit Clearances, Curb Dimensions, and Dimen-
sional Data

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

OAB Units . . . . . . . . . . . . . . . . . . . . . . . . . 14

Indirect-Fired OAG Units . . . . . . . . . . . . . 16

Unit Weight and Rigging

. . . . . . . . . . . . . . . . 19

Unit Weight . . . . . . . . . . . . . . . . . . . . . . . . 19

Rigging . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Installation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . 22

General Unit Requirements . . . . . . . . . . . 22

OAB and OAG IF Heater Air Inlet Hood and

Flue Assembly Instructions . . . . . . . . . . . .23

Main Electrical Power Requirements . . . .25

Condensate Drain Configuration . . . . . . .25

Hot Water Control Valve Wiring . . . . . . . .25

Chilled Water Connection Size and Location
26

Filter Installation . . . . . . . . . . . . . . . . . . . . .26

Opening the Collapsed Exhaust Damper
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Field Installed Power Wiring . . . . . . . . . . .28

Main Unit Power

. . . . . . . . . . . . . . . . . . . . . .29

Standard Wiring . . . . . . . . . . . . . . . . . . . . .29

Voltage Imbalance . . . . . . . . . . . . . . . . . . .30

Electrical Phasing (Three-Phase Motors) .30

Compressor Crankcase Heaters . . . . . . . .31

Main Unit Display and ReliaTel Controls .31

Field-Installed Control Wiring . . . . . . . . . .31

Control Power Transformer . . . . . . . . . . .32

Controls Using 24 Vac . . . . . . . . . . . . . . . .32

Controls Using DC Analog Input/Output
(Standard Low Voltage Multiconductor Wire)
32

DC Conductors

. . . . . . . . . . . . . . . . . . . . . . . .33

Factory-Provided Sensors

. . . . . . . . . . . . . .33

Pre-Start Check List

. . . . . . . . . . . . . . . . . . . . . .34

System Configuration and Pre-Start

. . . . . . .35

Startup

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

Indirect Gas-Fired Heating Startup

. . . . . . .38

Startup Procedure . . . . . . . . . . . . . . . . . . .39

Safety Controls . . . . . . . . . . . . . . . . . . . . . .42

Maintenance

. . . . . . . . . . . . . . . . . . . . . . . . . . . .43

Monthly Maintenance

. . . . . . . . . . . . . . . . . .43

Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

Supply/Return Air Smoke Detector Mainte-
nance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

Cooling Season . . . . . . . . . . . . . . . . . . . . .43

Heating Season . . . . . . . . . . . . . . . . . . . . .43

Condenser Coil Cleaning . . . . . . . . . . . . . .43

Final Process

. . . . . . . . . . . . . . . . . . . . . . . . . .45

Summary of Contents for Horizon OABD

Page 1: ...entilation 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 documentation ainsi que sur ...

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: ...es 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 recomm...

Page 4: ...resence of an ignition source leading to an explosion Excessive heat from soldering brazing or welding with refrigerant vapors present can form highly toxic gases and extremely corrosive acids AVERTISSEMENT Risque d explosion et gaz mortels Le non respect de toutes les consignes de manipulation des fluides frigorigènes peut entraîner la mort ou des blessures graves N effectuez en aucune circonstan...

Page 5: ... could result in death or serious injury If you smell gas 1 Open windows 2 Don t touch electrical switches 3 Extinguish any open flame 4 Immediately call your gas supplier AVERTISSEMENT Risque d explosion et gaz mortels Le non respect de toutes les consignes de sécurité ci dessous peut entraîner la mort ou des blessures graves Si vous sentez une odeur de gaz 1 Ouvrez les fenêtres 2 Ne touches à au...

Page 6: ...igging 21 Installation 22 Ductwork 22 General Unit Requirements 22 OAB and OAG IF Heater Air Inlet Hood and Flue Assembly Instructions 23 Main Electrical Power Requirements 25 Condensate Drain Configuration 25 Hot Water Control Valve Wiring 25 Chilled Water Connection Size and Location 26 Filter Installation 26 Opening the Collapsed Exhaust Damper Hood 26 Field Installed Power Wiring 28 Main Unit ...

Page 7: ...ion Circuit Data 51 Alarms and Troubleshooting 53 Microprocessor Control 53 System Alarms 53 Sensor Failure Alarm Display 53 RTRM Failure Modes 55 Appendix 56 OAU Filter Guide 56 Field Installation of Factory Provided Sensors 57 Horizon Dedicated Outdoor Air Unit Startup Form 61 ...

Page 8: ... Scroll 1st and 2nd Circuit w Sound Attenuation Package J Variable Speed Scroll 1st Circuit Only w Sound Attenuation Package K Variable Speed Scroll 1st and 2nd Circuit w Sound Attenuation Package 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 Var...

Page 9: ...w End Switch 9 Barometric Relief Dampers No PFM Digit 28 Powered Exhaust Fan Wheel 0 No Powered Exhaust A 355 B 450 C 450 X 2 D 12 9 BT single fan belt drive E 12 9 BT dual fan belt drive Digit 29 Powered Exhaust Fan Motor hp DIGIT 30 Reserved for Future Use Digit 31 ERV Requires Powered Exhaust 0 No ERV A ERV Composite Construction w Bypass B ERV Composite Construction with Frost Protection w VFD...

Page 10: ...d 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 Monitoring IFM Piezo Ring and PE Piezo Ring 5 Airflow Monitoring Outdoor Air Monitoring w Display Supply Air and Exhaust Air w Piezo Rings Digit 38 Accessories 0 No Options A H...

Page 11: ...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 the indoor fan to be energized the differential pressure switch connected to the Main Unit Disp...

Page 12: ...ator that is electrically interlocked with the outdoor air damper Modulating Indirect Gas Fired Burner The unit will have fully modulating high turndown indirect gas fired heat The heating section will include high turn down burners and a stainless steel tubular heat exchanger The heat exchanger will be constructed of type 439 stainless steel and be a tubular design capable of draining internal co...

Page 13: ... Providing less than the recommended clearances may result in condenser coil starvation short circuiting of exhaust or recirculation of hot condenser air WARNING Fiberglass Wool Product may contain fiberglass wool Disturbing the insulation in this product during installation maintenance or repair will expose you to airborne particles of glass wool fibers and ceramic fibers known to the state of Ca...

Page 14: ...r clearances AVERTISSEMENT Matériaux combustibles Tout manquement à l obligation de maintenir une distance appropriée entre l échangeur de chaleur de l unité les surfaces de ventilation et les matériaux 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 instr...

Page 15: ...t submittals Dimensional Data Note Sound attenuation package will add 17 76 in to the height of the condenser fan section Refer to project specific unit submittals Figure 4 Unit curb data for OAB 3 9 tons with auxiliary cabinet 5 7851 6833 Figure 5 Unit dimensional data for OAB 3 9 tons in 5217 9 75 6 211 7 5 7 6 9 5 6 27720 9 7 528 6 75 5 7 6 9 ...

Page 16: ...l add 17 76 in to the height of the condenser fan section Refer to project specific unit submittals Indirect Fired OAG Units Unit Clearances Figure 6 Unit dimensional data for OAB 3 9 tons with auxiliary cabinet in 5217 9 75 6 211 7 5 7 6 9 5 6 27720 9 7 528 6 75 Figure 7 Typical installation clearances for indirect fired OAG unit KCC International Inc 72 84 36 KCC International Inc 36 48 36 ...

Page 17: ...International Inc RETURN 4 13 3 55 4 19 3 3 23 4 3 53 8 4 3 8 4 1 70 2 1 117 2 25 1 2 Figure 10 Unit curb data for indirect fired OAG with auxiliary cabinet in Figure 11 Unit dimensional data for indirect fired OAG RETURN 2 44 1 8 4 3 23 4 4 3 8 53 3 8 165 5 1 70 2 1 117 2 3 55 13 4 3 19 4 1 25 2 5 3 8 3 1 2 KCC International Inc SUPPLY 17 250 35 798 ELECTRIC DISCONNECT FRONT VIEW 77 524 67 060 74...

Page 18: ...ttenuation package will add 10 79 in to the height of the condenser fan section Refer to project specific unit submittals Figure 12 Unit dimensional data for indirect fired OAG with auxiliary cabinet 17 250 35 798 ELECTRIC DISCONNECT FRONT VIEW 77 524 67 060 74 000 74 417 3 226 6 914 13 039 6 084 17 250 2 000 THROUGH BASE ELECTRIC BOTTOM VIEW 5 125 22 000 24 500 SUPPLY 52 072 19 955 RETURN 11 000 ...

Page 19: ... 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 unit reposition lifting point if unit is not level AVERTISSEMENT Levage inapproprié de l unité Le non respect des instructions ci dessous ou un levage inapproprié de l unité peut provoquer sa chute voire écraser l opérate...

Page 20: ... 24 28 23 25 OAG 264 3199 4730 83 6 35 3 24 28 23 25 OAG 300 3199 4730 83 6 35 3 24 28 23 25 OAG 360 3199 4730 83 6 35 3 24 28 23 25 Table 3 Typical unit weight center of gravity and corner weights percentage of total weight air cooled DX units with powered exhaust and ERV Model Number Weight lb Center of gravity in Corner weight of total weight Min Max Length Width Corner A Corner B Corner C Corn...

Page 21: ...roperly rigged and balanced make any necessary rigging adjustments 5 Lift the unit and position it into place Remove fork pockets prior to setting on the curb 6 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 not damaged while positioning the unit Figure 13 Cabinet corners Figure 14 Rigging and center ...

Page 22: ...out tagout procedures to ensure the power can not be inadvertently energized When 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 l...

Page 23: ...t ships with each curb kit Check curb for level installation if not level shim as required Convert unit to horizontal discharge and or horizontal return if necessary Refer to OAB and OAG IF Heater AirInletHoodandFlueAssemblyInstructions p 23 Rigging unit refer to Unit Weight and Rigging p 19 Set the unit onto the curb check for level Ensure unit to curb seal is tight and without buckles or cracks ...

Page 24: ...or using quantity 6 of the provided painted head screws as shown in Figure 21 5 Attach the wind screen to the inside of the heater door using quantity 6 of the provided painted head screws as shown in Figure 22 6 Install the heater door on the unit as shown in Figure 23 p 24 ensuring that the heater flue extends through the flue opening in the door Figure 20 Figure 21 Figure 22 Figure 23 ...

Page 25: ...ontal run to sag causing a possible double trap condition which could result in condensate backup due to air lock Hot Water Control Valve Wiring 1 Mount the factory provided water valve on the return line of the hot water coil 2 Ensure the valve is set to normally open 3 Run the 16 gauge black wire from TNS 2 to Input 1 of the actuator 4 Run the 16 gauge red wire from TNS 2 to Input 2 of the actua...

Page 26: ...ls outward while holding the top up 3 As shown in DETAIL B see Figure 28 and marked by arrow 2 secure the side panels to the top of the hood using 8 hex head sheet metal screws provided with the unit through the pre punched holes in the top and side panels four screws per side 4 Repeat these steps for the remaining damper hood Figure 26 Outdoor air chilled water cooling pipe chase connections Tabl...

Page 27: ...ed by arrow 2 secure the side panels to the top of the hood using 8 hex head sheet metal screws provided with the unit through the pre punched holes in the top and side panels four screws per side 4 Repeat these steps for the remaining damper hood Figure 28 OAB powered exhaust damper hood open 7 6 WKH SHU KH KH WKH DO JK QG Figure 29 OAG powered exhaust damper hood collapsed 7 6 7R UHOH WKH KH VKR...

Page 28: ...rounding as described in NEC and your local state electrical codes 7 6 YH H WKH WKH RI WKH HWDO RXJK DQG J 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 à la ...

Page 29: ...t accidentel de l alimentation électrique NOTICE Use Copper Conductors Only Failure to use copper conductors could result in equipment damage as unit terminals are not designed to accept other types of conductors WARNING Proper Field Wiring and Grounding Required Failure to follow code could result in death or serious injury All field wiring MUST be performed by qualified personnel Improperly inst...

Page 30: ...lure to follow all electrical safety precautions when exposed to live electrical components could result in death or serious injury When it is 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 AVERTISSEMENT Composants électriques sous tension Le non res...

Page 31: ...f the sequencer The ABC indicator light will glow if the phase is ABC If the CBA indicator light glows turn main source power off and then open the unit main disconnect device cover and reverse any two power wires Restore the main source power and recheck the phasing If the phasing is correct turn main source power off then open the unit main disconnect device cover remove the phase sequence indic...

Page 32: ...aves 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 empêcher tout rétablissement accidentel de l alimentation électrique WARNING Hazardous Voltage Failure to disconnect power before servicing could result in death or serious injury Disconnect all...

Page 33: ...ctions If space control is selected a combination space temperature humidity sensor BAYSENS036A will be factory provided for field installation in the space Refer to Figure 40 p 58 for installation instructions If multi zone VAV control is selected a static pressure sensor VELCON 0350 will be factory provided for field installation in the supply duct or space Refer to Figure 42 p 60 for installati...

Page 34: ... be required 4 Control wiring installed and landed 5 Accessories installed 6 Ductwork installed all runs in place final tie in complete 7 Drain lines installed and properly terminated 8 Startup appointment with Horizon certified Trane service technician set and confirmed Notes Check list must be completed and returned to Trane before startup is scheduled Startup must be performed by a Horizon cert...

Page 35: ...the various displays on the Unit 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...

Page 36: ...ed 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 Air Relative Humidity Local Analog Input Outdoor Air Temperature L...

Page 37: ... 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 ERV Option Not Installed Installed Installed N Powered Exhaust Option Not Installed Installed Installed N Return Air ...

Page 38: ...ENT Procédures d entretien dangereuses 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 dispositif...

Page 39: ...p 42 from both modulating and on off sections of the split heater manifold Install a barbed fitting in both 1 8 in tapped holes for connection to individual gas manometers Note There is a third 1 8 in gas pressure tap located in the pipe connecting the main valve regulator and modulating valve Maximum pressure into modulating valve is 5 in The On Off gas valve includes a regulator adjustment devic...

Page 40: ...e flat blade screwdriver to adjust outlet gas pressure Following these sequences inducer speed will reduce to low speed and will now be speed controlled by the heater controller based on gas input to burners With heating command at 100 percent and with a single split manifold heater installed the On Off section of the heater will require the modulating section to prove ON before the On Off section...

Page 41: ...quired to prevent recirculation Contact manufacturer prior to making any flue adjustments Reduced air delivery can also be the result of inducer fan blade slippage dirt accumulation in the fan blade or low voltage to draft inducer motor Inspect draft fan assembly and be sure fan blade is secure to motor shaft Check line voltage to heater 7 Flame Sensor Current Check Flame current is the current wh...

Page 42: ... condition is identified and corrected The rollout switch can be reset by pressing the button on top of the switch High Limit Switch The furnace module is equipped with a fixed temperature high limit switch mounted on the vestibule panel that shuts off gas to the heater through the ignition control module in the event of reduced airflow over the heat exchanger tubes Reduced airflow can be caused b...

Page 43: ... 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 compressor...

Page 44: ...structions below 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 ...

Page 45: ... Complete Unit Model Number _____________________________________________________ _____________________________________________________ _____________________________________________________ 2 Unit Serial Number _____________________________________________________ _____________________________________________________ _____________________________________________________ 3 Wiring Diagram Numbers fr...

Page 46: ...g 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 47: ...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 48: ... 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 Motor...

Page 49: ...on 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 1 140 ...

Page 50: ...tion 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 14...

Page 51: ...Performance Data OAU SVX02F EN 51 Superheat and Refrigeration Circuit Data Figure 35 Refrigeration diagram single compressor without reheat Figure 36 Refrigeration diagram single compressor with reheat ...

Page 52: ...Performance Data 52 OAU SVX02F EN Figure 37 Refrigeration diagram dual compressor without reheat Figure 38 Refrigeration diagram dual compressor with reheat ...

Page 53: ...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 14 and Table 15 p 54 WARNING Hazardous Serv...

Page 54: ...tly installed or connect RH or Temp sensor 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 15 TOAU UC600 troubleshoot...

Page 55: ...n 32 Vdc and 0 75 Vdc Unit Trips Heater High Limit High fire gas manifold pressure too high Supply fan speed too low Dirty or clogged filters Restricted discharge air duct Temperature of air entering heater too high Defective high limit Protonode Not Communicating Change Baud rate on UC600 to 38 400 WARNING Live Electrical Components Failure to follow all electrical safety precautions when exposed...

Page 56: ...at is provided Thickness MERV Qty Height Width 2 in 8 4 20 24 Table 17 OAG units Evaporator Thickness MERV Qty Height Width 2 in 8 2 16 20 4 16 25 2 in 13 2 16 20 4 16 25 4 in 14 2 16 20 4 16 25 Auxiliary Module Return Air Thickness MERV Qty Height Width 2 in 8 2 16 20 4 16 25 Outside Air a a No filters will be provided on the outside air path of the auxiliary module if electric preheat is provide...

Page 57: ...Appendix OAU SVX02F EN 57 Field Installation of Factory Provided Sensors Figure 39 VELSEN 0021 installation instructions ...

Page 58: ...Appendix 58 OAU SVX02F EN Figure 40 BAYSENS036A installation instructions ...

Page 59: ...Appendix OAU SVX02F EN 59 Figure 41 MZVAV DSPS document ...

Page 60: ...Appendix 60 OAU SVX02F EN Figure 42 VELCON 0350 installation instructions for modulating OA RA dampers w economizer and an exhaust fan ...

Page 61: ...cess doors open freely and are the handles operational _____YES _____NO 5 Have all electrical connections been tested for tightness _____YES _____NO 6 Does the electrical service correspond to the unit nameplate _____YES _____NO 7 On 208 230V units has transformer tap been checked _____YES _____NO 8 Have the damper assemblies been inspected _____YES _____NO 9 Are the air filters installed with pro...

Page 62: ...erature Line Temperature Subcooling Super Heat Discharge Suction Liquid Pressure Sat Temperature Line Temperature Subcooling Super Heat Discharge Suction Liquid Refrigeration System Circuit 1 Supply Fan Assembly Power Exhaust Fan Assembly Energy Recover Wheel Fan 2 Alignment Name plate amps Actual Amps Rotation Hrtz Fan 2 Alignment Name plate amps Actual Amps Rotation Hrtz Fan 2 Alignment Name pla...

Page 63: ...ing 4 Is the glycol the proper type and concentration N A if water 6 Has the water piping been insulated 7 What is the freeze point of the glycol N A if water Natural Gas Propane Purge Air from the lines Low Fire High Fire Heat 1 Heat 2 Heat 3 Amps L1 L2 L3 Amps L1 L2 L3 Electric Heat Water Glycol System _____YES NO_____ _____YES NO_____ _____YES NO_____ _____YES NO_____ _____YES NO_____ _____YES ...

Page 64: ...t 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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