Trane Horizon OAKD Installation, Operation And Maintenance Manual Download Page 7

Page: 7 / 104

Table of Contents

OAU-SVX01K-EN

Model Number Descriptions

. . . . . . . . . . . . . 10

Horizon Outdoor Air Unit

. . . . . . . . . . . . . . 10

General Information

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

Overview of Manual . . . . . . . . . . . . . . . . . 13

Model Number Description . . . . . . . . . . . 13

Unit Nameplate . . . . . . . . . . . . . . . . . . . . 13

Compressor Nameplate . . . . . . . . . . . . . . 13

Unit Description . . . . . . . . . . . . . . . . . . . . 13

Indoor Fan Failure Input . . . . . . . . . . . . . 13

Low Pressure Control ReliaTel Control . 13

Refrigerant Circuits . . . . . . . . . . . . . . . . . 13

High Pressure Control ReliaTel Control . 13

Space Temperature / RH Sensor (Optional)
14

High Temperature Sensor . . . . . . . . . . . . 14

Outdoor Air Temperature and Relative Hu-
midity Sensor . . . . . . . . . . . . . . . . . . . . . . 14

Hot Gas Reheat . . . . . . . . . . . . . . . . . . . . . 14

100 Percent Outdoor Air Hood with Damper
and Filters . . . . . . . . . . . . . . . . . . . . . . . . . 14

Modulating Indirect Fired Gas Burner . . 14

Through the Base Electrical with Disconnect
Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Through the Base Gas Piping . . . . . . . . . 14

Hinged Access Doors . . . . . . . . . . . . . . . . 14

Modulating Electric Heat . . . . . . . . . . . . . 14

Supply and Exhaust Piezo Fan Rings . . . 14

ERV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Hot Water Coils . . . . . . . . . . . . . . . . . . . . . 15

Suction Pressure Monitoring . . . . . . . . . 15

Head Pressure Control . . . . . . . . . . . . . . . 15

Unit Inspection

. . . . . . . . . . . . . . . . . . . . . . . 15

First Aid Measures . . . . . . . . . . . . . . . . . . 15

Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Unit Clearances . . . . . . . . . . . . . . . . . . . . 16

Unit Clearances, Curb Dimensions, and Dimen-
sional Data

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

OAK Units . . . . . . . . . . . . . . . . . . . . . . . . . 17

OAN Units . . . . . . . . . . . . . . . . . . . . . . . . . 21

Unit Weight and Rigging

. . . . . . . . . . . . . . . . 25

Unit Weight . . . . . . . . . . . . . . . . . . . . . . . . .25

Rigging . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Installation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . .28

Units with Indirect Fired Gas Heat . . . . . .28

General Unit Requirements . . . . . . . . . . . .29

Main Electrical Power Requirements . . . .29

Condensate Drain Configuration . . . . . . .29

Chilled Water Connection Size and Location
30

Filter Installation . . . . . . . . . . . . . . . . . . . . .30

Field Installed Power Wiring . . . . . . . . . . .30

Main Unit Power

. . . . . . . . . . . . . . . . . . . . . .31

Standard Wiring . . . . . . . . . . . . . . . . . . . . .32

Voltage Imbalance . . . . . . . . . . . . . . . . . . .32

Electrical Phasing (Three-Phase Motors) .33

Compressor Crankcase Heaters . . . . . . . .33

Main Unit Display and ReliaTel Controls .34

Field-Installed Control Wiring . . . . . . . . . .34

Control Power Transformer . . . . . . . . . . .34

Controls Using 24 Vac . . . . . . . . . . . . . . . .35

Controls Using DC Analog Input/Output
(Standard Low Voltage Multiconductor Wire)
35

DC Conductors

. . . . . . . . . . . . . . . . . . . . . . . .36

Factory-Provided Sensors

. . . . . . . . . . . . . .36

Pre-Start Check List

. . . . . . . . . . . . . . . . . . . . . .37

System Configuration and Pre-Start

. . . . . . .38

Pre-Start Up

. . . . . . . . . . . . . . . . . . . . . . . . . .48

Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

Cooling Start Up . . . . . . . . . . . . . . . . . . . . .48

Startup

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

Indirect Fired Gas Heating Startup

. . . . . . .50

Startup Procedure . . . . . . . . . . . . . . . . . . .51

Safety Controls . . . . . . . . . . . . . . . . . . . . . .54

Maintenance

. . . . . . . . . . . . . . . . . . . . . . . . . . . .55

Monthly Maintenance

. . . . . . . . . . . . . . . . . .55

Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

Supply/Return Air Smoke Detector Mainte-

Summary of Contents for Horizon OAKD

Page 1: ... et l entretien de cet équipement doivent être assurés exclusivement par du personnel qualifié L installation la mise en service et l entretien d équipements de 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 ...

Page 2: ...le Refrigerant Practices Trane believes that responsible refrigerant practices are important to the environment our customers and the air conditioning industry All technicians who handle refrigerants must be certified according to local rules For the USA the Federal Clean Air Act Section 608 sets forth the requirements for handling reclaiming recovering and recycling of certain refrigerants and th...

Page 3: ...ls 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 recommandé pour le travail entrepris exemples gants manchons ...

Page 4: ... presence 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 circonst...

Page 5: ...t AVERTISSEMENT Procédures d entretien dangereuses Une installation un réglage une modification une réparation ou un entretien incorrect peut entraîner des dommages matériels des blessures ou la mort Lisez attentivement les instructions d installation de fonctionnement et d entretien avant de procéder à l installation ou à l entretien de cet équipement WARNING Hazard of Explosion and Deadly Gases ...

Page 6: ...System Configuration and Pre Start chapter Removed the Microchannel MCHE Coils section in Maintenance chapter Added the Diagnostics values chart table to the Alarms and Troubleshooting chapter Added Horizon UC600 attention start up for Service Technician and Startup Forms ...

Page 7: ... 15 Unit Clearances 16 Unit Clearances Curb Dimensions and Dimen sional Data 17 OAK Units 17 OAN Units 21 Unit Weight and Rigging 25 Unit Weight 25 Rigging 27 Installation 28 Ductwork 28 Units with Indirect Fired Gas Heat 28 General Unit Requirements 29 Main Electrical Power Requirements 29 Condensate Drain Configuration 29 Chilled Water Connection Size and Location 30 Filter Installation 30 Field...

Page 8: ...aust and Outdoor Air By pass 86 Space Control or Single Zone VAV and OA Setpoints 87 Discharge Air Temp Reset for Single Zone VAV 87 Supply Fan Tracking for Exhaust Fan Field Enabled 87 Hot Water Reheat 87 Expanded Fallback Control 87 Sequence of Operation 88 General 88 Program Controlled Setpoints 88 Space Control and Single Zone VAV Control 88 Discharge Air Control and Multi Zone VAV Control 88 ...

Page 9: ...FD 92 Additional Features 92 Electric Pre Heat 92 Space Thumbwheel Input 92 Split Exhaust and Return Air Path 92 Outdoor Airflow Monitoring 93 Optional Field Enabled Features 93 Demand Control CO2 Ventilation 93 Exhaust Fan Tracking 93 Static Pressure Control for Exhaust Fan 93 Unoccupied Operation 93 Starting Sequence 93 With Return Air Damper Installed 93 No Return Air Damper Installed 93 Unoccu...

Page 10: ...Sound Attenuation Package H Digital Scroll 1st Circuit and 2nd Circuit w Sound Attenuation Package J Variable Speed Scroll 1st Circuit Only w Sound Attenuation Package K Variable Speed Scroll 1st Circuit and 2nd Circuit w Sound Attenuation Package L Variable Speed Scroll 1st Circuit Digital Scroll 2nd Circuit M Variable Speed Scroll 1st Circuit Digital Scroll 2nd Circuit w Sound Attenuation Packag...

Page 11: ...I Trane Discharge Air Control w LON Read Write No Display AJ Trane Space Control w LON Read Write No Display AK Trane Multi Zone VAV Control w LON Read Write w Display AL Trane Multi Zone VAV Control w BACnet w Display AM Trane Multi Zone VAV Control w LON Read Write No Display AN Trane Multi Zone VAV Control w BACnet No Display AO Trane Single Zone VAV Control w LON Read Write w Display AP Trane ...

Page 12: ...nience Outlet F 65 SCCR Electrical Rating w Non Fused Disconnect G 65 SCCR Electrical Rating w Fused Disconnect H 65 KAIC Electrical Rating w Non Fused Disconnect J 65 KAIC Electrical Rating w Fused Disconnect K 65 KAIC Non Fused w Convenience Outlet L 65 KAIC Fused w Convenience Outlet M 65 SCCR Non Fused w Convenience Outlet Digit 37 Air Flow Monitoring 0 No Airflow Monitoring 1 Airflow Monitori...

Page 13: ...nted 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 the indoor fan to be energized the differential pressure swi...

Page 14: ...r Modulating Indirect Fired Gas Burner The unit will have fully modulating high turndown indirect fired gas 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 condensate External flue to be constructed of type 304 stainless s...

Page 15: ...that the power supply complies with the unit nameplate specifications Visually inspect the exterior of the unit including the roof for signs of shipping damage Visually inspect the internal components for shipping damage as soon as possible after delivery and before it is stored Do not walk on the sheet metal base pans Ifconcealed damage is discovered notify thecarrier s terminal of damage immedia...

Page 16: ...cumulation on the unit s electrical and or mechanical components Unit Clearances Unit Clearances Curb Dimensions and Dimensional Data p 17 contains figures that illustrate the minimum operating and service clearances for either a single or multiple unit installation These clearances are the minimum distances necessary to assure adequate serviceability cataloged unit capacity and peak operating eff...

Page 17: ...mbustibles 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 instructions d installation pour connaître l...

Page 18: ...arances for OAK unit 7 0 6 0 Figure 4 Typical installation clearances for OAK unit with auxiliary cabinet 7 0 6 0 Note Certain options require auxiliary cabinet Refer to project specific unit submittals Curb Dimensions Figure 5 Unit curb data for OAK 12 30 tons in SUPPLY RETURN öļ 1ļ TYP 30ļ 29ļ 56ļ 2 õļ 5 ôļ 9 ôļ ļ 1 õļ Figure 6 Unit curb data for OAK 12 30 tons with auxiliary cabinet in SUPPLY R...

Page 19: ... project specific unit submittals Figure 8 Unit dimensional data for OAK 12 30 tons with auxiliary cabinet vertical supply and vertical return with ERV 80 57 106 00 94 21 62 11 66 83 60 00 106 10 200 99 43 02 Base to bottom of air inlet 62 51 Figure 9 Unit dimensional data for OAK 12 30 tons horizontal supply and vertical no return in 4 00 SA duct flange 106 21 TOP VIEW 60 47 80 57 60 00 34 00 83 ...

Page 20: ...zontal supply and horizontal return with ERV in 39 89 106 21 54 38 4 00 RA SA duct flange Typical 13 97 TOP VIEW 33 75 94 21 83 57 60 00 80 57 34 00 60 47 5 00 98 11 FRONT VIEW SA RA 35 47 32 88 43 02 34 00 8 22 2 08 9 94 SA 80 57 SA 10 91 27 68 RA 35 50 RA 29 20 64 52 21 41 204 68 237 06 20 35 233 88 21 00 6 04 204 18 RIGHT VIEW Unit Clearances Curb Dimensions and Dimensional Data 20 OAU SVX01K E...

Page 21: ...rom top of unit 72 Clearance 48 Clearance 36 3 0 3 0 4 0 4 0 Figure 13 Typical installation clearances for OAN unit with auxiliary cabinet Clearance 48 Clearance 48 Clearance from top of unit 72 Clearance 36 Clearance 60 4 0 3 0 3 0 4 0 Note Certain options require auxiliary cabinet Refer to project specific unit submittals Figure 14 Typical installation clearances for OAN unit 7 0 6 0 ...

Page 22: ...ata for OAN 30 54 tons with auxiliary cabinet SUPPLY RETURN Gutter 1 TYP Gutter detail 140 202 136 1 2 33 29 3 8 1 3 4 63 59 1 2 51 7 8 22 1 4 4 1 8 57 7 8 54 3 8 4 1 8 6 1 2 Note Certain options require auxiliary cabinet Refer to project specific unit submittals Dimensional Data Figure 18 Unit dimensional data for OAN30 54 tons vertical supply and vertical no return without ERV 144 00 67 00 74 63...

Page 23: ... 2 08 11 21 RIGHT VIEW Figure 21 Unit dimensional data for OAN 30 54 tons horizontal supply and horizontal return with optional exhaust fan in 2 88 SA RA DUCT FLANGE TYPICAL 144 17 TOP VIEW 92 07 95 07 67 47 98 80 31 54 67 00 4 97 101 54 FRONT VIEW SA Gas inlet RA Condensate drain 221 95 35 57 92 07 2 08 SA 28 56 9 46 87 31 SA 42 00 RA 27 25 8 11 RA 186 07 19 06 11 21 48 52 40 00 41 47 41 73 186 5...

Page 24: ...07 67 47 98 80 31 54 4 97 101 54 FRONT VIEW RA Gas inlet SA Condensate Drain 35 88 248 14 92 07 35 57 2 08 28 56 SA 9 46 42 00 SA 87 31 RA 8 11 RA 248 62 41 81 19 06 11 21 290 43 40 00 41 47 48 52 27 25 6 04 284 02 RIGHT VIEW Unit Clearances Curb Dimensions and Dimensional Data 24 OAU SVX01K EN Note Certain options require auxiliary cabinet Refer to project specific unit submittals ...

Page 25: ...rator 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 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 c...

Page 26: ... 22 26 35 OAN 540 5629 7814 73 4 41 5 18 20 29 33 OAN 600 5629 7814 77 0 41 2 18 21 26 36 OAN 648 5629 7814 75 2 41 4 15 23 24 37 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 Corner ...

Page 27: ... 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 24 Rigging and center of gravity data SPREADER BARS LENGTH WIDTH LIFTING POINTS ...

Page 28: ...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 Ductwork Elbows with turning vanes or splitters are recommended to minimize air noise due to turbulence and to reduce static pressure When attaching the ductwork to the unit provide a water tight flexible connect...

Page 29: ...plate specifications Inspect all control panel components tighten any loose connections Connect properly sized and protected power supply wiring to a field supplied installed disconnect switch and to the main power terminal block HTB1 in the unit control panel Connect properly sized earth ground Note All field installed wiring must comply with NEC and applicable local codes Condensate Drain Config...

Page 30: ...tity are determined by selected filter option and unit size Note Do not operate the unit without filters Field Installed Power Wiring 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 installed and grounded field wiring poses FIRE and ELECTROCUTION hazards To avoid t...

Page 31: ...mped on the nameplate Use only copper conductors to connect the power supply to the unit Main Unit Power WARNING Hazardous Voltage Failure to disconnect power before servicing could result in death or serious injury Disconnect all electric power including remote disconnects before servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized Verify that n...

Page 32: ...ration for starting the unit Check all electrical connections for tightness and point of termination accuracy Verify condenser airflow is unobstructed Verify that the condenser and indoor fans turn freely without rubbing and are properly tightened on the shafts Check motor mounting bolts and inlet cone for tightness Free spin wheel by handto check for proper alignment of motor wheel and inlet cone...

Page 33: ...nstrument such as an Associated Research Model 45 Phase Sequence Indicator and following these steps Turn off the main source feeding power to the unit field supplied or factory installed main disconnect device switch or circuit breaker Close the unit disconnect device cover leaving disconnect switch in the off position and turn main source power on Observe the ABC and CBA phase indicator lights o...

Page 34: ...nd 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 à la terre constitue des risques D INCENDIE et D ÉLECTROCUTION Pour éviter ...

Page 35: ...the high voltage power wiring Table 6 24 Vac conductors Distance from Unit to Control Recommended Wire Size 000 460 feet 000 140 m 18 gauge 0 75 mm2 461 732 feet 104 223 m 16 gauge 1 mm2 Controls Using DC Analog Input Output Standard Low Voltage Multiconductor Wire WARNING Hazardous Voltage Failure to disconnect power before servicing could result in death or serious injury Disconnect all electric...

Page 36: ...ply duct or space Refer to Figure 54 p 85 for installation instructions If modulating OA RA dampers w economizer and an exhaust fan are selected a duct static pressure sensor VELCON 0350 will be factory provided for field installation in the return duct Refer to Figure 54 p 85 for installation instructions OAUTS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 REMOVE JUMPER AND INSTA...

Page 37: ...ring 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 9 Test and Balance recommended prior to Start Up Notes Check list must be completed and returned to Trane before startup is scheduled Startup must be per...

Page 38: ...midity Local 0 100 Hardwired input from field installed space humidity sensor wired to OAUTS 5 6 SPHC AI 03 Supply Fan Piezo Pressure Local 0 25 in H2O Hardwired input from factory installed piezo differential pressure sensor SPZ AI 04 Outdoor Coil Leaving Temperature Circuit 1 Local 50 270 F Hardwired input from factory installed temperature sensor located on the outdoor coil CCTC1 AI 05 Outdoor ...

Page 39: ...rom factory installed pressure transducer on the refrigeration circuit LLPC1 AI 19 Liquid Line Refrigerant Pressure Circuit 2 Local 0 500 psi Hardwired input from factory installed pressure transducer on the refrigeration circuit LLPC2 AI 20 Space Temperature Setpoint Local 55 85 F Hardwired input for field installed thumbwheel input wired to OAUTS 3 VTSP AI 21 Outdoor Air Temperature Local 40 130...

Page 40: ...ace cooling setpoint used in occupied mode AV 02 Occupied Heating Setpoint 70 F 55 85 F Space heating setpoint used in occupied mode AV 04 Heat Pump Disable Temperature 25 F 0 60 F Heat pump operation is disabled when the outdoor air temperature falls below this setpoint AV 05 Dehumidification Temperature Active 58 482 F Temperature reading for dehumidificaiton For OAN Rev 6 cabinets this is disch...

Page 41: ...int used to lock the unit into cooling mode User input with Discharge Control calculated value on other units AV 30 Discharge Air Cooling Setpoint BAS 60 F 45 90 F Discharge air setpoint during cooling mode AV 32 Discharge Air Heating Setpoint BAS 65 F 45 100 F Discharge air setpoing during heating mode AV 33 Outdoor Air Heating Enable Setpoint 15 75 F Setpoint that puts the unit into heating mode...

Page 42: ...n H2O Setpoint used for exhaust fan static pressure control AV 57 Exhaust Fan Air Flow Setpoint 0 25000 cfm Setpoint used for constant volume exhaust fan control AV 59 Supply Fan Air Flow Minimum Setpoint Cooling Mode 0 cfm Setpoint used for supply fan during cooling or heat pump operation AV 61 Heat Control Pgain 4 0 6 Pgain used to control primary heat AV 62 Space CO2 Concentration Active 0 1000...

Page 43: ...ifferential presssure switch closes adj range for the filters in front of the indoor coil BI 04 Occupancy Input 0 Unocc 1 Occupied Dry contact input for Occupancy Status Wired to field wiring terminal strip OAUTS 7 8 To use MV 01 keep factory installed jumper in place BI 05 Outdoor Air Damper End Switch 0 Not Proven 1 Proven End switch for outdoor air damper BI 06 Heat On Off Status Local 0 Off 1 ...

Page 44: ...through compressor contactor BI 22 Compressor 6 Status 0 On 1 Off Feedback run status hardwired through compressor contactor BI 23 Compressor 1 VFD Status 0 Alarm 1 Normal Compressor alarm status input from VFD BO 01 Supply Fan Start Stop Command 0 Off 1 On Enable for supply fan BO 02 Outdoor Air Damper Open Close Command 0 Open 1 Closed Enable for outdoor air damper BO 03 Heat 1 Command 0 Off 1 O...

Page 45: ... 0 Off 1 On Purge status for hot gas reheat BV 07 Auxiliary Heating Mode 0 Allowed 1 Not Allowed Used to interlock primary heater to prevent simultaneous heat pump and primary heat operation BV 09 Economizer Status 0 Not Econ 1 Econ Economizer status BV 16 Alarm Reset 0 Normal 1 Reset Used to reset all manual reset diagnostics BV 17 System LOCKOUT 0 Normal 1 Lockout Generic diagnostic accompanying...

Page 46: ...ive 0 Active 1 Not Active Status indicating that the unit is calling for cooling but the compressors are locked out due to low ambient temperature MV 01 Occupancy Request 1 Occupied 2 Unoccupied 3 Occupied Bypass 4 Occupied Standby 5 Auto MV 02 Occupancy Status 1 Occupied 2 Unoccupied 3 Occupied Bypass 4 Occupied Standby MV 03 Heat Cool Mode Request 1 Auto 2 Heat 3 Morning Warm up 4 Cool 7 Off 10 ...

Page 47: ...n Mode MV 19 Compressor 1 Status Active 1 Disabled 2 Enabled No Running Status 3 Enabled With Running Status 4 Enabled No VFD Alarm 5 Not Installed MV 20 Compressor 2 Status Active 1 Disabled 2 Enabled No Running Status 3 Enabled With Running Status 4 Not Installed 5 Input Status In Fail MV 21 Compressor 3 Status Active See Compressor 2 Status Active MV 20 MV 23 Compressor 4 Status Active See Comp...

Page 48: ...nfigure viii Make calibration offset the opposite of the number listed as supply fan pressure ix For example if the supply fan pressure is listed as 0 18 set the calibration offset to 0 18 and save x Reattach the clear tubing to the sensor securely xi Repeat for Exhaust Piezo if applicable 7 Identify OA RA Dampers a Verify end switch is set to 4 Cooling Start Up Important This should NOT be perfor...

Page 49: ...U SVX01K EN 49 b Override Circuit 1 to 0 c Override HGRH to 100 d Maintain head pressure 400 psi e Record electrical data refrigerant pressures saturated temps and line temps on Horizon Start Up sheet available at the end of this document ...

Page 50: ...e y comprisles disjoncteurs à distance et déchargez tous les dispositifs de stockage d énergie comme les condensateurs avant l entretien Respectez les procédures de verrouillage et d étiquetage appropriées pour éviter tout risque de remise sous tension accidentelle S il est nécessaire de travailler avec des composants électriques sous tension demandez à un électricien qualifié et agréé ou à une au...

Page 51: ...e burner pressure testing In the event that the pressure switch fails to operate check the pick up tubes to be certain that the tubes are not obstructed and confirm that the tube connections to IFFS are tight and secure 3 Confirm Gas Flow at Unit WARNING Hazardous Voltage and Gas Failure to turn off gas or disconnect power before servicing could result in an explosion or electrocution which could ...

Page 52: ... to adjust outlet gas pressure Valves in 3 4 in gas line require 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 requi...

Page 53: ...tiff brush Poor flame characteristics can also be caused by flue gas recirculation into combustion air supply If surrounding buildings or prevailing winds cause recirculation a flue extension may be required 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 ...

Page 54: ... high andlow speed pressures The air pressure switches have fixed settings and are not adjustable Rollout Switch Manual Reset The furnace module is equipped with manual reset rollout switch es in the event of burner flame rollout The switch will open on temperature rise and shut off gas supply through the ignition control module Flame rollout can be caused by insufficient airflow for the burner fi...

Page 55: ...tions provided with the literature package for this unit Cooling Season Check the unit s drain pans and condensate piping to ensure that there are no blockages Inspect the evaporator and condenser coils for dirt bent fins etc If the coils appear dirty clean them according to the instructions described in Condenser Coil Cleaning p 56 Manually rotate the condenser fan s to ensure free movement and c...

Page 56: ...voir les fiches de données de sécurité du fabricant pour l agent de nettoyage et suivre toutes les pratiques de manipulation préconisées 1 Remove enough panels from the unit to gain access to the coil 2 Protect all electrical devices such as motors and controllers from any over spray 3 Straighten any bent coil fins with a fin comb WARNING Hazardous Pressures Failure to follow safety precautions be...

Page 57: ...__________________________________ connection s _____________________________________________________ _____________________________________________________ _____________________________________________________ Table 9 Sample maintenance log Date Current Ambient Temp F C Refrigerant Circuit 1 Refrigerant Circuit 2 Compr Oil Level Suct Press Psig kPa Disch Press Psig kPa Liquid Press Psig kPa Super ...

Page 58: ...1 25 1 25 1 25 1 25 Outdoor Fan Type Propeller Propeller Propeller Propeller Number Used 2 3 3 3 Diameter in mm 24 609 6 24 609 6 24 609 6 24 609 6 Drive Type Direct Direct Direct Direct No Speeds 1 1 1 1 CFM m3 h 19 500 33 131 19 500 33 131 19 500 33 131 19 500 33 131 Number Motors 3 3 3 3 Motor HP kW per motor 1 0 0 75 1 0 0 75 1 0 0 75 1 0 0 75 Motor RPM 1140 1140 1140 1140 Indoor Fan Type Back...

Page 59: ...5 1 25 Outdoor Fan Type Propeller Propeller Propeller Number Used 3 3 3 Diameter in mm 24 609 6 24 609 6 24 609 6 Drive Type Direct Direct Direct No Speeds 1 1 1 CFM m3 h 19 500 33 131 19 500 33 131 19 500 33 131 Number Motors 3 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 Inclined Backward Inclined Backward Inclined Number Used 1 1 1 Diameter ...

Page 60: ...on Size in mm 1 25 4 1 25 4 1 25 4 1 25 4 Outdoor Fan Type Propeller Propeller Propeller Propeller Number Used 2 3 3 3 Diameter in mm 24 609 6 24 609 6 24 609 6 24 609 6 Drive Type Direct Drive Direct Drive Direct Drive Direct Drive No Speeds 1 1 1 1 CFM m3 h 19 500 11 477 19 500 11 477 19 500 11 477 19 500 11 477 Number Motors 3 3 3 3 Motor HP kW per motor 1 0 0 75 1 0 0 75 1 0 0 75 1 0 0 75 Moto...

Page 61: ...pe High Performance High Performance High Performance Tube Size OD in mm 1 2 12 7 1 2 12 7 1 2 12 7 Face Area ft2 m2 16 1 49 20 1 86 20 1 86 Rows 4 4 4 FPI 12 12 12 Refrigerant Control TXV TXV TXV Drain Connection Size in mm 1 25 4 1 25 4 1 25 4 Outdoor Fan Type Propeller Propeller Propeller Number Used 3 3 3 Diameter in mm 24 609 6 24 609 6 24 609 6 Drive Type Direct Drive Direct Drive Direct Dri...

Page 62: ...Scroll Scroll Scroll Outdoor Coil Type High Performance High Performance High Performance Tube Size OD in mm 3 8 9 5 3 8 9 5 3 8 9 5 Face Area ft2 m2 48 4 46 53 4 92 63 5 85 Rows 2 3 3 FPI 12 12 12 Indoor Coil Type High Performance High Performance High Performance Tube Size OD in mm 1 2 12 7 1 2 12 7 1 2 12 7 Face Area ft2 m2 23 2 14 23 2 14 29 2 69 Rows 6 6 6 FPI 12 12 12 Refrigerant Control TXV...

Page 63: ...croll Scroll Outdoor Coil Type High Performance High Performance High Performance Tube Size OD in mm 3 8 9 5 3 8 9 5 3 8 9 5 Face Area ft2 m2 63 5 85 63 5 85 63 5 85 Rows 4 4 4 FPI 12 12 12 Indoor Coil Type High Performance High Performance High Performance Tube Size OD in mm 1 2 12 7 1 2 12 7 1 2 12 7 Face Area ft2 m2 29 2 69 29 2 69 29 2 69 Rows 6 6 6 FPI 12 12 12 Refrigerant Control TXV TXV TXV...

Page 64: ...ressor Number 2 2 2 2 Type Scroll Scroll Scroll Scroll Outdoor Coil Type High Performance High Performance High Performance High Performance Tube Size OD in mm 3 8 9 5 3 8 9 5 1 2 12 7 1 2 12 7 Face Area ft2 m2 30 2 79 30 2 79 31 2 88 31 2 88 Rows 2 2 2 2 FPI 12 12 12 12 Indoor Coil Type High Performance High Performance High Performance High Performance Tube Size OD in mm 1 2 12 7 1 2 12 7 1 2 12...

Page 65: ... 546 111 23 451 733 132 39 491 044 143 91 Heating Performance Gross Heating Capacity Btu kW 361 914 106 07 406 655 119 18 450 153 131 93 CFM Nominal cfm AHRI rated cfm m3 h 3750 7500 2207 4414 4375 8750 2575 5150 5000 10000 2943 5886 Compressor Number 2 3 3 Type Scroll Scroll Scroll Outdoor Coil Type High Performance High Performance High Performance Tube Size OD in mm 1 2 12 7 1 2 12 7 1 2 12 7 F...

Page 66: ...u kW 543 223 159 20 611 624 179 25 663 300 194 39 Heating Performance Gross Heating Capacity Btu kW 489 302 143 40 555 346 162 76 598 432 175 38 CFM Nominal cfm AHRI rated cfm m3 h 5625 11250 3311 6622 6250 12500 3679 7357 6750 13500 3973 7946 Compressor Number 3 4 4 Type Scroll Scroll Scroll Outdoor Coil Type High Performance High Performance High Performance Tube Size OD in mm 1 2 12 7 1 2 12 7 ...

Page 67: ... 1750 3500 1750 3500 1750 3500 Motor Frame Size Standard Oversized Varies Varies Varies Filters Type Furnished Refer to OAU Filter Guide in Appendix p 81 Refer to OAU Filter Guide in Appendix p 81 Refer to OAU Filter Guide in Appendix p 81 Number Size Recommended Refrigerant Charge lb of R 410A Downflow See Nameplate See Nameplate See Nameplate Table 18 OANE general data cooling 45 54 tons high ef...

Page 68: ...e Data 68 OAU SVX01K EN Superheat and Refrigeration Circuit Data Non Heat Pump Units Figure 35 Refrigeration diagram single compressor without reheat Figure 36 Refrigeration diagram single compressor with reheat ...

Page 69: ...Figure 37 Refrigeration diagram dual compressor without reheat Figure 38 Refrigeration diagram dual compressor with reheat Performance Data OAU SVX01K EN 69 ...

Page 70: ...Figure 39 Refrigeration diagram triple compressor without reheat Figure 40 Refrigeration diagram triple compressor with reheat Performance Data 70 OAU SVX01K EN ...

Page 71: ...Figure 41 Refrigeration diagram quad compressor without reheat Figure 42 Refrigeration diagram quad compressor with reheat Performance Data OAU SVX01K EN 71 ...

Page 72: ...rmance Data 72 OAU SVX01K EN Superheat and Refrigeration Circuit Data ASHP Units Figure 43 Refrigeration diagram single compressor without reheat Figure 44 Refrigeration diagram single compressor with reheat ...

Page 73: ...Figure 45 Refrigeration diagram dual compressor without reheat Figure 46 Refrigeration diagram dual compressor with reheat Performance Data OAU SVX01K EN 73 ...

Page 74: ...Figure 47 Refrigeration diagram triple compressor without reheat Figure 48 Refrigeration diagram triple compressor with reheat Performance Data 74 OAU SVX01K EN ...

Page 75: ...Figure 49 Refrigeration diagram quad compressor without reheat Figure 50 Refrigeration diagram quad compressor with reheat Performance Data OAU SVX01K EN 75 ...

Page 76: ...tension d exécuter ces tâches 1 Verify that the Liteport LED on the RTRM is burning continuously If the LED is lit go to Step 3 2 If the LED is not lit verify that 24 Vac is presence between J1 1 and J1 2 If 24 Vac is present proceed to Step 3 If 24 Vac is not present check the unit main power supply check transformer TNS1 Proceed to Step 3 if necessary 3 Utilizing Method 1 in the RTRM System Stat...

Page 77: ...Diagnostic Fire Shutdown Auto Reset Diagnostic from BAS communication Unit resets once this returns to normal BAS only BV 10 Diagnostic Low Discharge Air Temp Lockout Manual Reset Occurs when the discharge air temperature is below 35 F for five minutes or ten minutes during heat pump defrost mode Heat Overridden OFF Compressor s Overridden ON Setpoint Failures Incorrect DAT sensor malfunction BV 1...

Page 78: ...t or less than the minimum BV 31 Diagnostic Liquid Line Refrigerant Pressure Circuit 1 Source Failure Auto Reset Occurs when circuit 1 is running and the liquid line transducer is outside of the 150 650PSI range for two minutes BV 32 Diagnostic Liquid Line Refrigerant Pressure Circuit 2 Source Failure Auto Reset Occurs when circuit 2 is running and the liquid line transducer is outside of the 150 ...

Page 79: ...al or Auto Reset Occurs when there is a call for a compressor without a run status for five minutes Auto resets after three hours BV 53 Diagnostic Compressor 3 Run Failure Manual or Auto Reset Occurs when there is a call for a compressor without a run status for five minutes Auto resets after three hours BV 54 Diagnostic Compressor 4 Run Failure Manual or Auto Reset Occurs when there is a call for...

Page 80: ...age between the J1 8 and J3 2 terminals on the RTRM and ground If 24 Vac is present the CLPs have not tripped If no voltage is present CLPs have tripped System Failure Measure the voltage between terminals J6 9 and J6 6 Normal Operation approximately 32 Vdc System Failure less than 1 Vdc approximately 0 75 Vdc Cool Failure Measure the voltage between terminals J6 8 and J6 6 Cool Operating approxim...

Page 81: ... 16 Outside Air Thickness MERV Qty Height Width 2 in 8 2 25 20 1 25 16 Auxiliary Module 58XX 64XX ERV Return Air Thickness MERV Qty Height Width 2 in 8 8 20 18 Outside Air Thickness MERV Qty Height Width 2 in 8 8 20 18 Inlet Thickness Material Qty Height Width 2 in Aluminum Mesh 6 20 20 Table 23 OAND units Evaporator Thickness MERV Qty Height Width 2 in 8 13 9 24 20 4 in 14 9 24 20 Auxiliary Modul...

Page 82: ...Appendix 82 OAU SVX01K EN Field Installation of Factory Provided Sensors Figure 51 VELSEN 0021 installation instructions ...

Page 83: ...Figure 52 BAYSENS036A installation instructions Appendix OAU SVX01K EN 83 ...

Page 84: ...Figure 53 Supply duct static pressure transducer SDPC ON 1 2 3 R1 R5 R3 R2 R4 O1 O5 O3 O2 O4 OFF Appendix 84 OAU SVX01K EN ...

Page 85: ...Figure 54 Return duct space pressure transducer RDSPC Appendix OAU SVX01K EN 85 ON 1 2 3 R1 R5 R3 R2 R4 O1 O5 O3 O2 O4 OFF ...

Page 86: ...ace Control units During dehumidification mode the unit will reset the evaporator setpoint by comparing the space conditions to the setpoints Previously a fixed setpoint for the evaporator temperature was used during dehumidification Minimum Supply Air Flow Setpoints VAV units will now have separate minimum air flows during heating or cooling operation Previously the setting used was the highest v...

Page 87: ... displayed for the sensor when another sensor is being used Evaporator temperature sensor fail use suction pressure Supply duct static pressure sensor fail use constant volume at minimum air flow Space temperature sensor fail use constant discharge air temperature Space relative humidity sensor fail use constant evaporator leaving temperature Expanded Diagnostics Refrigerant Pressure Diagnostics L...

Page 88: ...oling and heating setpoints Dehumidification Temperature Setpoint Active is controlled by Dehumidification Temperature Setpoint Occupied Control Starting Sequence Occupied operation begins when the unit is placed in Occupied via BAS or when OAUTS 7 8 is closed on the field wiring terminal strip The unit must not be in Emergency Stop to begin starting sequence OAUTS 9 10 on the field wiring termina...

Page 89: ...entilation Mode heating and cooling is locked out and the unit supplies un conditioned air Ventilation Mode is locked out whenever the unit is in Dehumidification Mode Multi Zone VAV Control Ventilation Mode locked out Space Control Ventilation Mode is enabled when the Outdoor Air Temperature Active and the Space Temperature Active is within two degrees of the Space Temperature Setpoint Active Dur...

Page 90: ...Allowed Outdoor Air Temperature Active is recorded as Heat Pump Fail Switch Point Heat pump operation is re attempted when the temperature rises by 5 F The unit switches Auxiliary Heating Mode to Allowed when the Outdoor Air Temperature Active falls below the Heat Pump Disable Temperature Setpoint adj 0 60 F default 25 F Water Source Heat Pump Outdoor Coil Water Flow Status uses a differential pre...

Page 91: ...g Dehumidification Mode Cooling Capacity is adjusted to maintain the Dehumidification Temperature Setpoint Active which is written to by Dehumidification Temperature Setpoint adjustable Hot Gas Reheat Valve Command if installed is adjusted to maintain Discharge Air Temperature Setpoint Active Multi Zone VAV Control Dehumidification Mode is enabled whenever the Outdoor Air Dewpoint rises above the ...

Page 92: ...ctive for variable effectiveness capacity control Once the bypass damper becomes fully closed the primary heater will be engaged Energy Wheel Without VFD The unit prevents frost accumulation on the ERV by measuring the Exhaust Leaving Temperature Local The Energy Recovery Outdoor Air Bypass Position Command is modulated open to maintain 15 F for the exhaust temperature Above this temperature the b...

Page 93: ... conditions as described under the occupied section the Outdoor Air Damper Position Command will open to the Outdoor Air Damper Maximum Position Setpoint No Return Air Damper Installed Identical to occupied starting sequence Unoccupied Heating Mode Unoccupied Heating Mode is enabled when the Space Temperature Active falls below the Unoccupied Heating Enable Setpoint During Unoccupied Heating Mode ...

Page 94: ... The unit is shut down when this diagnostic occurs including the supply fan Diagnostic High Low Discharge Air Temp Lockout is displayed when the Discharge Air Temperature Local is above 128 F below35 F for a durationof 10 minutes The diagnostic is manual reset using Alarm Reset Diagnostic Liquid Line Refrigerant Pressure Circuit 1 2 Source Failure is displayed when the respective circuit is on ind...

Page 95: ...sure Source Failure Diagnostic Space CO2 Source Failure Diagnostic Space Humidity Source Failure Diagnostic Space Temperature Source Failure The Dehumidification Temperature Sensor is the Indoor Coil Leaving Air Temperature Local on all cabinets except for the OANG OAN Rev 6 For the OANG cabinet the sensor is the Discharge Air Humidity Local Economizer Fault Detection and Diagnostics Not Economizi...

Page 96: ...om For further questions please contact the factory at 502 493 5757 Pre Startup Checklist Checked for visible shipping damage Unit is level All fans spin freely All electrical connections tight Interior cabinet inspected for damage or loose components All field installed devices are installed Clearances meet minimum requirements in IOM Condensate drains and P Traps installed All doors open freely ...

Page 97: ... Release Supply Fan Speed Command Startup Form OAU SVX01K EN 97 Voltages Rated Voltage Measured Voltage L1 L2 Voltage L1 L3 Voltage L2 L3 Voltage L1 G Voltage L2 G Voltage L3 G TNS2 Secondary Voltage Verify Indoor Fan Failure Switch OAD OAK or OAN cabinets with UC600 controls and all units without UC600 1 Set the unit at minimum air flow a For OAD OAK or OAN with UC600 override Supply Fan Speed Co...

Page 98: ...umber Rated Amps Running Amps 1 2 3 4 5 6 Actuators Actuator Name Control Operation Verified Outdoor Air Damper Actuator 2 Position or 2 10 VDC Return Air Damper Actuator 2 Position or 2 10 VDC Exhaust Damper Actuator s 2 Position Split Exhaust Return Damper Actuator 2 Position Outdoor Air ERV Bypass Damper Actuator 2 10 VDC Exhaust Air ERV Bypass Damper Actuator 2 10 VDC WSHP Water Valve Actuator...

Page 99: ...er flow through water coil 7 Adjust charge until subcooling is 10 15 8 Record all readings 9 Verify HGRH operational at 100 10 Heat Pumps Switch reversing valve to heating repeat steps 1 8 for heating mode except with hot gas reheat at 100 11 Repeat for Circuit 2 Note If saturated suction 67 F you can test both circuits at the same time Units with variable speed compressor VFD on compressor 1 must...

Page 100: ...ure Natural Gas Settings Propane Settings Incoming to Unit 7 14 11 14 in H2O Between On Off Mod Valve 5 10 5 in H2O Stage 1 Manifold Low Fire 0 4 1 2 in H2O Stage 1 Manifold High Fire 3 5 8 in H2O Stage 2 Manifold 3 5 8 in H2O Stage 3 Manifold 3 5 8 in H2O Electric Heat Startup Heater Data Primary Heater Pre Heater Item Number Rated kW Rated Amps Running Amps L1 L2 L3 ...

Page 101: ...ter startup and submit that along with this startup report The report is generated by going to Reports at the top left Point Summary Report and then Generate Report on the popup window None of the checkboxes need to be checked Commissioning Do not attempt to perform commissioning by putting points Out of Service and setting a value The program looks for points that are In Service or Out of Service...

Page 102: ... space temperature setpoint overwrites Occupied Cooling and Heating Setpoints Factory defaulted Out of Service put In Service to use MULTI ZONE VAV AV 10 Outdoor Air Dewpoint Enable Setpoint 55 45 100 F When the Outdoor Air Dewpoint is above this setpoint the unit will be locked into Dehumidification Mode takes priority over Cooling Mode AV 30 Discharge Air Cooling Setpoint BAS 60 45 90 F Discharg...

Page 103: ...there something missing or do you have recommendations on improvements Note here if the outdoor air temperature is too low for cooling testing Submit completed form to horizonstartup kccmfg com Include serial number and job name in subject of email ...

Page 104: ...e are committed to using environmentally conscious print practices Trane by Trane Technologies NYSE TT a global climate innovator creates comfortable energy efficient indoor environments for commercial and residential applications For more information please visit trane com or tranetechnologies com OAU SVX01K EN 18 Jun 2021 Supersedes OAU SVX01J EN Apr 2020 ...

Search results

Summary of Contents for Horizon OAKD

Reviews:

Related manuals for Horizon OAKD

Brands by name

Popular brands

Trane Horizon OAKD, Installation, Operation And Maintenance Manual

Search results

Summary of Contents for Horizon OAKD

Reviews:

Related manuals for Horizon OAKD

Brands by name

Popular brands