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INSTALLATION, OPERATION & MAINTENANCE MANUAL
ENERGY RECOVERY VENTILATOR
LE6XRT
Model LE6XRTH Shown
(also available as separate modules for field assembly)
RENEWAIRE.COM

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Summary of Contents for RenewAire LE6XRTH

  • Page 1 INSTALLATION, OPERATION & MAINTENANCE MANUAL ENERGY RECOVERY VENTILATOR LE6XRT Model LE6XRTH Shown (also available as separate modules for field assembly) RENEWAIRE.COM...
  • Page 2: Important Safety Information

    NOTICE This unit is for ventilating finished structures only. It is not to be used until after all construction has been completed and construction debris and dust are cleaned from the Occupied Space. RENEWAIRE.COM INSTALLATION, OPERATION AND MAINTENANCE MANUAL 1.800.627.4499...
  • Page 3: Unit Information

    UNIT INFORMATION In the unlikely event that factory assistance is ever required, information located on the unit label will be needed. Configuration (Option) Code Unit Label (typical) 1.800.627.4499 INSTALLATION, OPERATION AND MAINTENANCE MANUAL RENEWAIRE.COM...
  • Page 4: Table Of Contents

    1.3 MODELS 7.3.3 Control Sending 24 VAC “ON” Signal 1.3.1 LE6XRTF 7.3.4 External Control Using ERV Power Supply 1.3.2 LE6XRTH 7.3.5 Control with 2 Non-Powered Relay Contacts 1.3.3 LE6XRTR 7.3.6 Control with 2 “ON” Signals, External Power 7.4 SEQUENCE OF OPERATION 1.3.3 LE6XRTV...
  • Page 5 LE6XRTV Duct Configuration LE6XRT Hood (typ) LE6XRT Hood Shipping Location (typ) RenewAire Microprocessor Controller Premium Microprocessor Controls Installed RenewAire Microprocessor Controller Expansion Board Carbon Dioxide Sensor, Room/Wall Mount Time Clock, Panel Mount VFDs Mounted Inside ERV Time Clock, Exterior Enclosure...
  • Page 6: Configuration Code For Le6Xrt Models

    LE6XRT ERV RENEWAIRE CONFIGURATION CODE CONFIGURATION CODE FOR LE6XRT MODELS L E - 6 X MODEL NUMBER DIGIT NUMBER Digit 9: Digit 18: Orientation Flow Control "V", "H", "R", "F" "-" = No Isolation Dampers "D" = Motorized Damper both Airstreams "E"...
  • Page 7: Le6Xrt Submittal Specifications

    16.6 See all AHRI certified ratings at www.ahrinet.org. Three 11.9 13.1 208-230 Three 21.0-19.0 47.3 21.0-19.0 52.0 Three 21.4 23.5 Three 17.1 18.8 Specifications may be subject to change without notice. RENEWAIRE.COM 1.800.627.4499 1.800.627.4499 INSTALLATION, OPERATION AND MAINTENANCE MANUAL RENEWAIRE.COM...
  • Page 8: Le6Xrt Rtv/Rtr Dimensions

    LE6XRT RTV/RTR DIMENSIONS LE6XRT RTV/RTR DIMENSIONS FOR THE MOST COMPLETE AND CURRENT INFORMATION VISIT RENEWAIRE.COM RENEWAIRE.COM INSTALLATION, OPERATION AND MAINTENANCE MANUAL 1.800.627.4499...
  • Page 9: Le6Xrt Rth/Rtf Dimensions

    LE6XRT RTH/RTF DIMENSIONS LE6XRT RTH/RTF DIMENSIONS SPECIFICATIONS & DIMENSIONS RENEWAIRE.COM 1.800.627.4499 1.800.627.4499 INSTALLATION, OPERATION AND MAINTENANCE MANUAL RENEWAIRE.COM...
  • Page 10: Overview

    LE6XRTF Duct Configuration LE-RTH LE-RTR 1.3.2 LE6XRTH The LE6XRTH features Room Air (RA) entering on one side of the unit and Fresh Air (FA) exiting on the other side. This model is typically mounted on equipment rails. LE-RTH LE-RTR Room Air (RA) enters lower right side of unit.
  • Page 11: Le6Xrtr

    Fresh Air (FA) exits through the floor of the unit. LE6XRTV Duct Configuration LE-RTH LE-RTR 1.4 CURBS For further information on curbs used with LE units, see the following RenewAire manuals: • LE Rigging Manual • Curb Clips Manual •...
  • Page 12: Component Description

    See digit 22 of the Configuration Code. Note that units ordered with integrated pro- grammable controls have filter monitoring supplied. RENEWAIRE.COM INSTALLATION, OPERATION AND MAINTENANCE MANUAL 1.800.627.4499...
  • Page 13: Controls

    VFD package. 2.7.1 Integrated Microprocessor Controls RenewAire offers an integrated microprocessor controller as an option for ERVs. It is available in either an Enhanced or a Premium version. See the RenewAire Integrated Microprocessor Controls Manual for further information.
  • Page 14: Variable Frequency Drive

    VFD Keypads Found in E-Box 2.8 OPTIONAL CONTROL ACCESSORIES RenewAire offers a number of control accessories as options that are to be field-installed and wired directly to the ERV low voltage terminal strip. When wired to the ERV low voltage terminal strip, each device functions as an ON/OFF switch for the ERV but they will not modulate the ERV.
  • Page 15: Indoor Air Quality Sensor (Iaq)

    Ceiling Mount Occupancy Sensor Wall Mount Occupancy Sensor 2.8.5 Smoke Detector A duct-mounted smoke detector is available to monitor for smoke and act as an ON/OFF switch for the ERV. It draws 2.3 VA. Smoke Detector 1.800.627.4499 INSTALLATION, OPERATION AND MAINTENANCE MANUAL RENEWAIRE.COM...
  • Page 16: Unit Weights

    Do not scale drawing TO CHANGE WITHOUT NOTICE. Sheet 1 of 4 TO CHANGE WITHOUT NOTICE. Do not scale drawing Motors UNIT Sheet 1 of 4 RenewAire LLC LE-6X-RT_CORNER_WEIGHTS_MAY18.dwg RenewAire LLC 3 HP 2086 LE-6X-RT_CORNER_WEIGHTS_MAY18.dwg 5 HP 2100 7.5 HP 2218 ADDITIONAL WEIGHTS FOR OPTIONS (lbs.)
  • Page 17: Shipping / Receiving / Handling

    4.1 UNIT WEIGHTS / DIMENSIONS 4.1.1 Unit Dimensions and Weight For unit dimensions and weight, see the RenewAire product submittal. Also see sections 3.3 and 3.4 Corner Weights in this manual. 4.1.2 Shipping Dimensions and Weight For unit shipping dimensions and weight, see the RenewAire product submittal. Also see sections 3.3 and 3.4 Corner Weights in this manual.
  • Page 18: Unit Placement

    Do not install the unit inside a garage or parking structure. NOTICE This ERV must be installed in compliance with SMACNA guidelines and all applicable local building codes. 5.3 SERVICE CLEARANCES See Section 3.0 Unit Drawings for required service clearances. RENEWAIRE.COM INSTALLATION, OPERATION AND MAINTENANCE MANUAL 1.800.627.4499...
  • Page 19: Installation

    Many ERVs are ordered pre-assembled at the factory. For those units that are to be assembled in the field, follow the assembly instructions found in the accompanying LE Models: Shipping, Rigging, Lifting, Assembly manual, to be found in the documentation package shipped with each unit and available online at www.renewaire.com. 6.2 DUCT CONNECTIONS Ducts inside All duct connections to the sides of the unit are equipped with double-flanged duct connections.
  • Page 20: Electrical Connections

    Knockouts for Entry of High Voltage Service Low Voltage Terminal Strip E-Box with Knockouts on Bottom Grounding Disconnect Switch Low Voltage In E-Box Low Voltage Terminal Strip High Voltage In E-Box Main Disconnect Switch RENEWAIRE.COM INSTALLATION, OPERATION AND MAINTENANCE MANUAL 1.800.627.4499...
  • Page 21: Wiring Schematics

    ELECTRICAL CONNECTIONS LE6XRT ERV 6.5 WIRING SCHEMATICS Single Phase Wiring Schematic 1.800.627.4499 INSTALLATION, OPERATION AND MAINTENANCE MANUAL RENEWAIRE.COM...
  • Page 22: Three Phase Wiring Schematic

    ELECTRICAL CONNECTIONS LE6XRT ERV Three Phase Wiring Schematic RENEWAIRE.COM INSTALLATION, OPERATION AND MAINTENANCE MANUAL 1.800.627.4499...
  • Page 23: Control Connections

    If the transformer is subjected to excessive load or a short circuit, the integral circuit breaker will trip. Shut off the primary-side power to the unit and remove the excessive load or the short circuit. The circuit breaker can be reset about 15 seconds after it trips. 1.800.627.4499 INSTALLATION, OPERATION AND MAINTENANCE MANUAL RENEWAIRE.COM...
  • Page 24: Motor Protection

    Terminals 96 and 97 on the overload relays and terminals 14 and 13 of the contactors are Normally Open (NO) dry contacts and may be used to signal that the contactors are closed and / or that the overload relays have tripped. RENEWAIRE.COM INSTALLATION, OPERATION AND MAINTENANCE MANUAL 1.800.627.4499...
  • Page 25: Units With Variable Frequency Drives (Vfds)

    Connect the control’s contacts to terminals 1 and 4 to operate the isolation relays for OA / FA blower. • Install jumper between terminals 4 and 5 to operate the ERV’s isolation relays for the RA / EA blower. Single 2-Wire Control, Unpowered 1.800.627.4499 INSTALLATION, OPERATION AND MAINTENANCE MANUAL RENEWAIRE.COM...
  • Page 26: Single 2 - Wire Control, Separate Power

    Connect the other side of the output contact to terminal 4 in order to control the FA blower. • Connect the other side of the output contact to terminal 5 in order to control the EA blower. RENEWAIRE.COM INSTALLATION, OPERATION AND MAINTENANCE MANUAL 1.800.627.4499...
  • Page 27: Control With 2 "On" Signals, External Power

    VFD or unless only one of the blowers is in an airstream with a Damper. When set up for Independent Blower Operation, each blower will follow an independent operating sequence. 1.800.627.4499 INSTALLATION, OPERATION AND MAINTENANCE MANUAL RENEWAIRE.COM...
  • Page 28 Alternately, the VFD might be controlled by a Time Clock, which defines different operating periods (e.g. “occupied” and “unoccupied”). Each period calls on one of up to three different VFD Presets to provide different motor speeds in different operating periods. RENEWAIRE.COM INSTALLATION, OPERATION AND MAINTENANCE MANUAL 1.800.627.4499...
  • Page 29: Pre Start-Up

    Thoroughly clean the inside of the unit by vacuuming and/or wiping metal surfaces with a damp rag. 8.9 INSPECT DUCTWORK CONNECTIONS Ducts attached to the ERV must be firmly attached, sealed and supported in accordance with installation instructions and SMACNA guidelines. 1.800.627.4499 INSTALLATION, OPERATION AND MAINTENANCE MANUAL RENEWAIRE.COM...
  • Page 30: Start-Up

    Turn Disconnect Switch on the face of the E-Box to the OFF position. Disconnect power at the branch circuit supply. Lock and tag the disconnect. • Disconnect jumper from terminal 1 to terminal 4, but otherwise leave the jumpers in place for the convenience of following contractors. RENEWAIRE.COM INSTALLATION, OPERATION AND MAINTENANCE MANUAL 1.800.627.4499...
  • Page 31: Adjust Motor Sheaves

    11.7 and 11.8 for more detailed adjustment information. 10.0 MAINTENANCE RenewAire ERVs are built to operate with minimal maintenance. After unit commissioning, the prima- ry areas of attention are the air filters and periodic lubrication of the fan motors and fan bearings.
  • Page 32: Electric Motor Maintenance

    Each motor manufacturer specifies the frequency of maintenance and the amount and type of grease to use on the bearings. Do not mix different types of grease. Check the manufacturer’s web site for each specific motor. RENEWAIRE.COM INSTALLATION, OPERATION AND MAINTENANCE MANUAL 1.800.627.4499...
  • Page 33 The most commonly used motors in RenewAire ERVs are made by Baldor. If you are viewing this document on a computer connected to the internet, click the button below to go directly to their web site.
  • Page 34 This will allow for thermal expansion of the grease. • After greasing, run the motor for a while (at least five minutes) to allow the motor to discharge any excess grease. RENEWAIRE.COM INSTALLATION, OPERATION AND MAINTENANCE MANUAL 1.800.627.4499...
  • Page 35: Pillow Blocks

    Leave a small amount of grease on the zerk as a protective coating. • In all cases, Industry Best Practices should be observed. Maintain a record of every lubrication and the type of lubricant used. 1.800.627.4499 INSTALLATION, OPERATION AND MAINTENANCE MANUAL RENEWAIRE.COM...
  • Page 36: Enthalpic Core Maintenance

    Carefully pull out the cores one at a time. Remove Filters Remove Support Members End View of Core Support Assembly 10.7.2 Reinstallation of Enthalpic Cores To reinstall the cores, reverse the process shown above. RENEWAIRE.COM INSTALLATION, OPERATION AND MAINTENANCE MANUAL 1.800.627.4499...
  • Page 37: Service Parts

    MAINTENANCE LE6XRT ERV 10.8 SERVICE PARTS LE6XRT Service Parts 1.800.627.4499 INSTALLATION, OPERATION AND MAINTENANCE MANUAL RENEWAIRE.COM...
  • Page 38: Maintenance Reference

    Two different isolator spring strengths may be used and they cannot be interchanged. Each isolator has a support RENEWAIRE.COM INSTALLATION, OPERATION AND MAINTENANCE MANUAL 1.800.627.4499...
  • Page 39: Risk Of Core Damage

    11.5 FILTER REPLACEMENT PRACTICES RenewAire has provided a filter replacement tool called a filter extractor hook. See picture below. In ad- dition, the filter spacers have a tab on the ends where a pull cord can be inserted. With a cord installed in the tab holes, it is possible to simply pull the cords and withdraw six filters at once.
  • Page 40: Door Latch Adjustment

    Be sure to reinsert the test port cap when air flow measuring is finished. Motors that are controlled by factory-installed VFDs are equipped with fixed sheaves. The entire speed range that can be obtained with variable sheaves can be obtained by adjusting the VFD. RENEWAIRE.COM INSTALLATION, OPERATION AND MAINTENANCE MANUAL 1.800.627.4499...
  • Page 41: Sheave Adjustment

    Note that Low, Medium and High Blower RPM sheave settings overlap allowing some adjustability into lower or higher blower speed zones. Loosen Set Screw on Each Adjustable Flange Fixed Position Flange Adjustable Flanges Two-Belt Adjustable Sheave (typ) 1.800.627.4499 INSTALLATION, OPERATION AND MAINTENANCE MANUAL RENEWAIRE.COM...
  • Page 42: Maintenance Records

    MAINTENANCE LE6XRT ERV 11.9 MAINTENANCE RECORDS AIR FILTER REPLACEMENT RECORD FILTERS REPLACED DATE: ENTHALPIC CORES CLEANING RECORD CORES CLEANED DATE: RENEWAIRE.COM INSTALLATION, OPERATION AND MAINTENANCE MANUAL 1.800.627.4499...
  • Page 43 REQUIRED LUBRICANT (from motor manufacturer’s website): FRONT BEARING LUBE REQUIREMENTS: REAR BEARING LUBE REQUIREMENTS: LUBRICATION PERFORMED DATE: FA FAN PILLOW BLOCKS REQUIRED LUBRICANT (from pillow block manufacturer’s website): BEARING LUBE REQUIREMENTS: LUBRICATION PERFORMED DATE: 1.800.627.4499 INSTALLATION, OPERATION AND MAINTENANCE MANUAL RENEWAIRE.COM...
  • Page 44 A BOU T RENEWAI RE For over 30 years, RenewAire has been a pioneer in enhancing indoor air quality (IAQ) in commercial and residential buildings of every size. This is achieved while maximizing sustainability through our fifth-generation, static-plate, enthalpic-core Energy Recovery Ventilators (ERVs) that optimize energy efficiency, lower capital costs via load reduction and decrease operational expenses by minimizing equipment needs, resulting in significant energy savings.

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