AAON RQ NEXT GEN Series Installation & Operation Manual
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AAON RQ NEXT GEN Series Installation & Operation Manual

AAON RQ NEXT GEN Series Installation & Operation Manual

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Installation, Operation,
and Maintenance Manual
RQ NEXT GEN Series
Packaged Rooftop Units, Heat Pumps, & Outdoor Air Handling Units
Version 250506
Conforms to UL STDs 60335-1
and 60335-2-40

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Summary of Contents for AAON RQ NEXT GEN Series

  • Page 1 Installation, Operation, and Maintenance Manual RQ NEXT GEN Series Packaged Rooftop Units, Heat Pumps, & Outdoor Air Handling Units Version 250506 Conforms to UL STDs 60335-1 and 60335-2-40...
  • Page 2 Safety Attention must be paid to the following statements: Startup and service must be performed by a Factory Trained Service Technician competent in working with flammable refrigerants. The unit is for outdoor use only. See General Information section for more information. Use only with type of the gas approved for the furnace.

  • Page 3: Table Of Contents

    Table of Contents Safety .............2 Maintenance ........36 Supply Fan ..............36 RQ Next Gen Series Features and DX Cooling ..............37 Options Introduction ......14 Condensate Drain Pans ..........37 E-Coated Coil Cleaning ..........37 RQ Next Gen Feature String Microchannel Coil Cleaning ........
  • Page 4 RQ Next Gen Series Startup Form ... SF-1 Pre Startup Checklist ..........SF-1 A2L Refrigerant Detection System (RDS) Pre-Start Checklist ..............SF-2 Equipment Checklist ..........SF-2 Water/Glycol System..........SF-4 Additional Findings ...........SF-5 Signature ..............SF-5 Maintenance Log ......LOG-1 Maintenance Log (E-Coated Coil) ..LOG-2 Literature Change History .....LOG-3...
  • Page 5 Figure 3 — RQ Cabinet Standard and Power Exhaust Gasket Locations ................11 Figure 4 — Forklifting an RQ Next Gen Series Unit from the Side ..................12 Figure 5 — Forklifting an RQ Next Gen Series Unit from the Top ..................12 Figure 6 —...
  • Page 6 Figure 51 — Remove Center Screen from Wheel Shaft ......................53 Figure 52 — Belt Replacement ..............................54 Figure 53 — RQ Next Gen Series Gas Heat Exchanger ......................56 Figure 54 — RQ Next Gen Series Gas Heat Exchanger ......................59 Figure 55 —...
  • Page 7 Table 36 — RQ Next Gen Series 2-5 Ton Pre Filters ......................66 Table 37 — RQ Next Gen Series 2-5 Ton Unit Filters ......................66 Table 38 — RQ Next Gen Series 2-5 Ton Energy Recovery Wheel Filters ................66 Table 39 — Corrosion Resistance ............................. 70 Table 40 —...
  • Page 8 WA R N I N G WA R N I N G ELECTRIC SHOCK, FIRE, OR EXPLOSION ROTATING COMPONENTS HAZARD Unit contains fans with moving parts that can cause serious injury. Do not open door containing fans until the Failure to follow safety warnings exactly could result in power to the unit has been disconnected and fan wheel dangerous operation, serious injury, death or property has stopped rotating.
  • Page 9 AAON Inc. warranties Doors and panels with access to UV-C lamps, with and the heat exchanger manufacturer’s warranties. possible spectral irradiance exceeding 1.7 μW/cm2 are provided with an interlock switch. Do not over-ride. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual...
  • Page 10 WA R N I N G WA R N I N G Connected ductwork must be free of potential ignition If refrigerant leak is detected, remove/extinguish sources, such as hot surfaces above 700 ºC (1292 ºF) or all sources of open flame. If repairing refrigerant electrical devices prone to arcing or sparking.
  • Page 11 W A R N I N G The appliance shall be stored in a room without continuously operating ignition sources (i.e. open flames, an operating gas appliances or operating electric heater). RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual | 11...
  • Page 12 CA U T I O N CA U T I O N WHAT TO DO IF YOU SMELL GAS Rotation must be checked on all MOTORS AND COMPRESSORS of 3 phase units at startup by a qualified y Do not try to turn on unit. service technician.
  • Page 13 Electrical components must be free from producing arcs or sparks. The maintenance guidelines in this manual must always be followed. If in doubt, contact Factory Technical Support. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual | 13...

  • Page 14: Rq Next Gen Series Features And Options Introduction

    Hot Water/Steam Preheat Coils y Electric Preheat y Phase and Brown Out Protection y Supply/Return Smoke Detectors y Supply/Return Firestats RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual RQ Next Gen Series Features and Options Introduction | 14...

  • Page 15: Rq Next Gen Feature String Nomenclature

    No Compressor 2 Stage R-454B Two-Step Scroll Compressor R-454B Variable Speed Scroll Compressor R-454B Variable Capacity Compressor R-454B Refrigerant Injection Variable Speed Compressor RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual RQ Next Gen Feature String Nomenclature | 1...

  • Page 16: Model Options: B1 - 3D

    Perm Magnet AC Open Motor (1800 nominal rpm) Half Serpentine 8 fpi ECM Motor (1200 nominal rpm) Single Serpentine 12 fpi ECM Motor (1800 nominal rpm) Half Serpentine 12 fpi RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual RQ Next Gen Feature String Nomenclature | 2...

  • Page 17: Model Options: 3E - 6E

    Total + High CFM + Exhaust Filters Total + Low CFM+ Exhaust Filters Sensible + Low CFM+ Exhaust Filters Sensible + Low CFM + Exhaust Filters RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual RQ Next Gen Feature String Nomenclature | 3...

  • Page 18: Model Options: 7 - 12

    One Circuit 0 F Low Ambient Standard Position Standard Filters + Lint Screen Pre- filters in Standard Position 9C (Final Filter Type) No Final Filters RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual RQ Next Gen Feature String Nomenclature | 4...

  • Page 19: Model Options: 13A - 16D

    13C (Disconnect 2 Size) None Standard - None AAON Controls 16C (Control Supplier Options) None 16D (BMS Connection & Diagnostics) None BACnet MSTP RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual RQ Next Gen Feature String Nomenclature | 5...

  • Page 20: Model Options: 17A - 30

    Option A + D Option A + D Option D + E Option A + D + E Option B + D + E RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual RQ Next Gen Feature String Nomenclature | 6...

  • Page 21: Model Options: 31 - 37

    SPA + Premium AAON Gray Paint Exterior Paint + Interior Corrosion Protection 34 (Blank) SPA + Premium AAON Gray Paint Exterior Paint + Shrink Wrap Standard SPA + Premium AAON Gray Paint Exterior Paint + Interior Corrosion Protection + Shrink Wrap...

  • Page 22: General Information

    General Information Certification of Electric Heat Models RQ Next Gen Series packaged rooftop units, heat pumps and outdoor air handling units have been designed for a. Certified as an electric warm air furnace with or outdoor installation only. Units are assembled, wired, without cooling.

  • Page 23: Installation

    Figure 1 — Lockable Handle The warranty card must be completed in full and C A U T I O N returned to AAON not more than 3 months after unit is delivered. Failure to observe the following instructions will result...
  • Page 24 122 cm (48”) CA U T I O N Unobstructed Neoprene isolator for unit vibration isolation is provided in the cabinet and must be installed according to installation manual. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual General Information | 10...
  • Page 25 Figure 3 — RQ Cabinet Standard and Power Exhaust Gasket Locations RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual General Information | 11...
  • Page 26 Forks or Fork Extensions must be at least 122 cm (48”) in length and must extend 112 cm (44”) under the unit Figure 4 — Forklifting an RQ Next Gen Series Unit from the Side Figure 5 — Forklifting an RQ Next Gen Series Unit from the Top...
  • Page 27 Lifting the Unit The RQ Next Gen Series units must be lifted using the lifting points in the side base rails. A spreader bar must be used to prevent the lifting straps from damaging the unit. The connection points on the spreader bar must be 122 cm –...
  • Page 28 OSP-0180- 10. Use provided self tapping screws to attach base of unit to seismic curb bracket. Figure 13 — Seismic Solid Bottom Curb without Filters, Cross Section RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual General Information | 14...
  • Page 29 Figure 18 — RQ Next Gen Series Unit Closed Rain Hood Remove shipping covers and attach duct to flanges provided on the unit. The installer is responsible for sealing ducts to the flanges to prevent water leaks.
  • Page 30 Figure 19 — RQ Next Gen Series Unit Open Rain Hood Metal Mesh Filters Metal mesh outside air filters require installation of the filter rack on the intake of the rain hood. Clips that hold the metal mesh filters in the filter rack must face outward.
  • Page 31 208V or 230V supply. For 208V service interchange the yellow and red conductor on the low voltage control transformer. Red-Black (208V), Yellow-Black (230V) Figure 21 — Unit Base Utility Entry RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual General Information | 17...
  • Page 32 Circuited Variable Speed Compressor Frequency Range on page 19. For more information on the variable speed compressor, reference the RQ Next Gen Series Variable Speed Compressor Supplement (V83980). RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual General Information | 18...

  • Page 33: Draw-Through Coils

    2-5 ton units are equipped with one condensate drain pan connection on the left side of the unit. P-trap must be field provided and installed. Figure 23 — Draw-Through Drain Trap RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual General Information | 19...

  • Page 34: Non-Compressorized Liquid And Suction Line Piping

    88.9 (3.50) 44.5 (1.75) -5.60 (-3.00) (4.00) (2.00) 101.6 50.8 -6.54 (-3.50) 114.3 (4.50) 57.2 (2.25) -7.47 (-4.00) (5.00) 63.5 (2.50) Note: 1 mm = 0.1 cm RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual General Information | 20...
  • Page 35 Figure 24 — Post Corner Hole Location Figure 25 — Post Back Hole Location RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual General Information | 21...
  • Page 36 Figure 26 — Post Corner Hole Piping Figure 27 — Post Back Hole Piping RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual General Information | 22...

  • Page 37: Startup

    Before completing startup and leaving the unit a complete operating cycle must be observed to verify that all components are functioning properly. Figure 28 — PIN Connectors on EC Supply Fan Motor Electronics RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Startup | 23...

  • Page 38: Adjusting Refrigerant Charge

    Speed adjustment is made by varying the DC voltage CA U T I O N on pin 8 (+) & 16 (-). If AAON Orion Control systems are installed on the system, then they will provide the 0-10VDC signal for speed control. The controller will The Clean Air Act of 1990 bans the intentional venting of refrigerant (CFC’s and HCFC’s) as of July 1, 1992.

  • Page 39: Checking Evaporator Superheat

    C A U T I O N Thermal expansion valve must be adjusted to approximately 4.4-8.3°C (8-15°F) of suction superheat. Failure to have sufficient superheat will damage the compressor and void the warranty. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Startup | 25...
  • Page 40 36 (390) 29 (317) 16.6 (584) 1678 (988) 62 (669) 51 (547) 37 (401) 30 (325) 17.0 (600) 1724 (1015) 64 (687) 52 (562) 38 (412) 31 (334) RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Startup | 26...
  • Page 41 6.1 - 8.9 5.6 - 8.3 5.6 - 8.3 4.4 - 7.2 46.1 5.6 - 8.3 6.1 - 8.9 6.1 - 8.9 6.1 - 8.9 5.0 - 7.8 RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Startup | 27...

  • Page 42: Adjusting Sub-Cooling And Superheat Temperatures

    If the sub-cooling is correct and the superheat is too high, the TXV may need adjustment to correct the superheat. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Startup | 28...
  • Page 43 781.8 21.1 1262.8 36.1 1919.8 51.1 2795.4 21.7 36.7 51.7 796.9 1283.7 1948.1 2832.7 22.2 37.2 52.2 812.2 1304.9 1976.7 2870.4 827.7 22.8 1326.3 37.8 2005.5 52.8 2908.4 RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Startup | 29...
  • Page 44 389.5 551.5 109.1 177.2 270.4 394.8 558.4 111.2 180.1 274.4 400.1 565.4 113.4 183.1 278.4 405.4 115.6 186.2 282.5 410.8 117.8 189.3 286.7 416.3 120.0 192.4 290.9 421.8 RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Startup | 30...

  • Page 45: Freeze Stat Startup

    0.50 BWS Signal 24 VAC 24 VAC 300-1100 1100 Rotation ECM Toolbox ID Variable Speed 4 Speed 3 Speed 2 Speed 1 20% PWM RPM 100% PWM RPM 1100 RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Startup | 31...

  • Page 46: Adjustable Fan Cycling Switch Procedure

    Note: The pressure values on the gauges must be Note: 5 psi = 34.5 kpa verified with gauges on the refrigerant line. The gauge scale is for illustration purposes only. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Startup | 32...

  • Page 47: Operation

    Building Engineer and must give appropriate required by local code and ASHRAE 15 may be notified priority in accordance with local codes. of detected refrigerant by this alarm output. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Operation | 33...

  • Page 48: Thermostat Operation

    100% for 1 minute when are by others. Heating is accomplished by passing starting. steam or hot water through the steam or hot water coil assembly. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Operation | 34...

  • Page 49: Modulating Electric Preheat

    26.7°C (80°F). CHILLED WATER OR NON- COMPRESSORIZED DX COOLING OPERATION Controls for chilled water cooling coils and non- compressorized DX coil are by others. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Operation | 35...

  • Page 50: Maintenance

    Remove fan access panel on the back side of the unit. Panel is attached with eight 8 mm (5/16”) bolts. Figure 37 — RQ Supply Fan Removal Slide RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Maintenance | 36...

  • Page 51: Dx Cooling

    This will make cleaning efforts more difficult. Surface loaded fibers must be completely removed prior to using low velocity clean water rinse. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Maintenance | 37...

  • Page 52: Microchannel Coil Cleaning

    Continue until all coil areas on the inside of the unit have been rinsed. Note: Coils must always be cleaned / back flushed, opposite of airflow to prevent impacting the dirt into the coil. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Maintenance | 38...
  • Page 53 Prior to performing work that can result in release of a flammable refrigerant, inspect area to ensure it is free of any potential ignition sources. “No Smoking” signs are to be displayed while performing work. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Maintenance | 39...
  • Page 54 When removing refrigerant to open the system, evacuate the system and flush or purge the system continuously with an inert gas when using a flame to open the circuit. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Maintenance | 40...

  • Page 55: Options

    The unit shall have proper sealing of the water piping entries into the unit. Failure to seal the entries may result in damage to the unit and property. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 41...

  • Page 56: Low Voltage Terminals

    V1 & V2 - Vapor Injection Solenoid leave part of the units switched to the opposite mode. Switch off cooling only units at the thermostat during the heating season. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 42...
  • Page 57 Compressor current is detected when compressor should be off. Resets when current is no longer detected. Low 24VAC Supply Supply voltage to module has dropped below 18.5VAC. Resets after voltage rise above 19.5VAC. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 43...

  • Page 58: Evaporator Coil

    Reconnect wires, then attach the fan grill at all the points where screws were removed. Connect the suction and liquid copper connections to the evaporator coil. Reinstall the TXV bulb on the suction line. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 44...

  • Page 59: Refrigerant-To-Water Heat Exchanger

    Any damage to the equipment as a result of water containing sodium hypochlorite. freezing in the condenser is excluded from coverage under AAON warranties and the heat exchanger manufacturer warranties. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 45...
  • Page 60 Balancing valves, permanent thermometers and gauges may be required. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 46...

  • Page 61: Energy Recovery Units

    To allow for mixing and temperature stabilization, wells in the water piping must extend at least 1/2 pipe diameter into the pipe. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 47...

  • Page 62: Initial Mechanical Check And Setup

    It is important that periodic maintenance be performed to help assure trouble free operation. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 48...
  • Page 63 2. Adjust purge sector to the specified angle. must be employed to establish actual operating conditions, and to configure the air delivery system for optimal performance. Figure 44 — Loosen Adjusting Screws RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 49...

  • Page 64: Controls

    Energy Recovery Wheel as well as inspection of the Air Seals and Wheel Drive Components as follows: Figure 46 — Loosen Adjusting Screws RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 50...
  • Page 65 Proper cleaning of the energy recovery wheel will restore latent effectiveness to near original performance. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 51...

  • Page 66: Air Seals

    A properly tensioned belt will turn the wheel immediately after power is applied with no visible slippage during start-up. Figure 48 — Avoid Racking of Cassette Frame RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 52...
  • Page 67 5. Remove the two hub cover screws 6. Remove center screw from the end of the wheel shaft Figure 51 — Remove Center Screen from Wheel Shaft Figure 49 — Hub Seal Adjustment RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 53...
  • Page 68 Note: Slight hand pressure against wheel rim will lift weight of wheel from inner race of bearing to assist bearing removal and installation. Figure 52 — Belt Replacement RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 54...

  • Page 69: Gas Or Electric Heating

    (208) (230V, 380V, 460V, 575V) *K = Heat K 10.0 *L = Heat L 15.0 20.0 *M = Heat M 22.5 30.0 *N = Heat N 30.0 40.0 RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 55...

  • Page 70: Electric Preheat

    1/2” 1/2” 1, 2, MOD 1/2” 4, HITD 1/2” 1/2” 1, 2, MOD 1/2” Figure 53 — RQ Next Gen Series Gas Heat Exchanger 4, HITD 1/2” 1/2” 1, 2, MOD 1/2” 4, HITD 1/2” 1/2” MOD = Modulating, HITD = High Turndown 1/2”...
  • Page 71 15.2 meters (50 feet)may require a larger supply pipe than the unit connection size. Some utility companies may also require pipe sizes larger than the minimum sizes listed. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 57...
  • Page 72 1-3/4” or Larger (Horizontal) Every 10 ft maximum of 6.5 mmHg (3.5” w.c.) and a minimum of .75 1-1/4” or Larger mmHg (0.4” w.c). Every Floor (Vertical) RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 58...
  • Page 73 (about 54.4°C [130°F]) which can cause condensation in the heat exchanger. Figure 54 — RQ Next Gen Series Gas Heat Exchanger RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 59...

  • Page 74: Leak Testing

    C A U T I O N Some soaps used for leak detection can be corrosive to certain metals. Rinse piping thoroughly after leak test has been completed. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 60...
  • Page 75 Gas Heater Operations Instructions Figure 55 — Gas Heater Instructions RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 61...
  • Page 76 Pull the heat exchanger straight back and out of the If vent extensions are used they shall meet category III unit. It may be necessary to remove some of the control requirements. door jambs. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 62...

  • Page 77: Phase And Brownout Protection Module

    All settings and the last 4 faults are retained, even if there is a complete loss of power. Figure 56 — Gas Heat Exchanger RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 63...
  • Page 78 Phase and brownout module may be this type on some products (as seen in the above picture). No setup is needed with this module version, other than checking that the voltage jumper voltage matches the unit voltage RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 64...

  • Page 79: Screens

    One phase is more than 30% below the Line Voltage selection “Bad Rotation” The phase rotation sequence is reversed “Bad Freq” Line frequency out of allowable range of 45 to 65 Hz RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 65...

  • Page 80: Filter Replacement

    2 / 20 in. x 20 in. x 4 in. (50.8 cm x 50.8 cm x 10.2 cm) Pleated, MERV 13 Pleated, MERV 14 TABLE 38 — RQ NEXT GEN SERIES 2-5 TON ENERGY RECOVERY WHEEL FILTERS Feature 1A Quantity/Size Type 1/24 in.

  • Page 81: Replacement Parts

    Label the unit as having been decommissioned and data and sign label. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 67...

  • Page 82: Warranty

    WARRANTY Refer to the Limited Warranty Certificate for the unit warranty details. Contact your AAON representative for a unit specific copy of the certificate for your serial number. RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 68...
  • Page 83 RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Options | 69...

  • Page 84: Appendix A - Heat Exchanger Corrosion Resistance

    < 300 Chlorides (Cl No Limit > 300 < 1 Free Chlorine Within 5 Hours > 5 * See Chlorine Content Table RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Appendix A - Heat Exchanger Corrosion Resistance | 70...
  • Page 85 Iron (Fe) No Limit > 0.2 < 0.2 Aluminum (Al) No Limit > 0.2 < 0.1 Manganese (Mn) No Limit > 0.1 RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Appendix A - Heat Exchanger Corrosion Resistance | 71...

  • Page 86: Appendix B - Thermistor Temperature Vs Resistance Values

    107.44 2.28 86.00 2.02 69.28 1.80 56.16 1.59 45.81 1.39 37.58 1.25 30.99 1.12 25.68 1.01 21.40 0.92 17.91 0.83 15.07 RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Appendix B - Thermistor Temperature vs Resistance Values | 72...

  • Page 87: Appendix C - Unit Safety Hierarchy

    ‘Com’ and ‘BSC’ on the ‘Hierarchy Control’ terminals. Figure 62 — Building Smoke Control Priority Jumper RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Appendix C - Unit Safety Hierarchy | 73...

  • Page 88: Rq Next Gen Series Startup Form

    19. Are ventilation and exhaust openings unobstructed? 20. Are markings, decals, and warnings on unit clearly visible? 21. Are all damaged or illegible markings and warnings replaced? RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual RQ Next Gen Series Startup Form | SF-1...

  • Page 89: A2L Refrigerant Detection System (Rds) Pre-Start Checklist

    Water-Cooled Condenser Air-Cooled Condenser No Water Leaks Condenser Safety Check Water Flow ___________ gpm Water Inlet Temperature __________ °C/°F Water Outlet Temperature ___________ °C/°F RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual RQ Next Gen Series Startup Form | SF-2...
  • Page 90 Line Temperature Sub-Cooling Superheat Temperature Discharge Suction Liquid Air-Cooled Condenser Fans Alignment Check Rotation Nameplate Amps ________ Number L1 Volts/Amps L2 Volts/Amps L3 Volts/Amps RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual RQ Next Gen Series Startup Form | SF-3...

  • Page 91: Water/Glycol System

    Amps Electric Preheating Limit Lockout Aux. Limit Lockout Outside Air Temperature Setpoint ______ °C/°F Preheat Leaving Air Temperature Setpoint ______ °C/°F Stage Amps RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual RQ Next Gen Series Startup Form | SF-4...

  • Page 92: Additional Findings

    By signing this form, you verify all of the contained information is correct and filled out to the best of your ability. Name: Title: Rep/Contractor: Signature Date/Time RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual RQ Next Gen Series Startup Form | SF-5...

  • Page 93: Maintenance Log

    This log must be kept with the unit. It is the responsibility of the owner and/or maintenance/service contractor to document any service, repair or adjustments. AAON Service and Warranty Departments are available to advise and provide phone help for proper operation and replacement parts. The responsibility for proper start-up, maintenance and servicing of the equipment falls to the owner and qualified licensed technician.

  • Page 94: Maintenance Log (E-Coated Coil)

    Maintenance Log (E-Coated Coil) RQ NEXT GEN SERIES Installation, Operation, and Maintenance Manual Maintenance Log (E-Coated Coil) | LOG-2...

  • Page 95: Literature Change History

    Literature Change History July 2022 Added the clarification that “ACR” rigid copper tubing must be used for connecting copper. December 2022 Added obsolete options in the feature string nomenclature for historical reference. Added Two-Stage Refrigeration system options M and N to Model Option A5. September 2023 Added all information pertaining to UL-60335 standard.
  • Page 96 Parts: For replacement parts, please contact your local AAON Representative. It is the intent of AAON to provide accurate and current product information. However, in the interest of product improvement, AAON reserves the right to change pricing, specifications, and/or design of its product without notice, obligation, or liability.

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