RenewAire HE Series Installation, Operation And Maintenance Manual
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- Installation, operation and maintenance manual (152 pages) ,
- Supplemental installation manual for options (8 pages) ,
- Installation, operation and maintenance manual (32 pages)
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Summary of Contents for RenewAire HE Series
- Page 1 HE SERIES ERV Installation, Operation and Maintenance Manual HE8X Model: HE8XIN shown...
- Page 2 HE-Series WARNING CAUTION ARC FLASH AND ELECTRIC SHOCK HAZARD RISK OF CONTACT WITH HIGH SPEED MOVING PARTS Arc flash and electric shock hazard. Disconnect all electric Disconnect all local and remote power supplies, verify with power supplies, verify with a voltmeter that electric power is a voltmeter that electric power is off and all fan blades have off and wear protective equipment per NFPA 70E before work- stopped rotating before working on the unit.
- Page 3 Locate the RenewAire unit label found on the outside of the unit. contractor. The completed NOTE: This information is for purposes of identifying the unit-specific option data from the document is to be turned Option Code.
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Page 4: Table Of Contents
TABLE OF CONTENTS HE-Series 1.0 OVERVIEW 5.5.3 How to Reset the 24VAC Circuit Breaker ......18 5.5.4 Limits of Power Output ............ 18 1.1 DESCRIPTION ............7 5.6 WIRING SCHEMATIC ..........19 1.2 AIRFLOW ..............8 5.7 EXTERNAL CONTROL CONNECTIONS .....20 5.7.1 Single 2-Wire Control, Unpowered ........20 2.0 COMPONENT DESCRIPTIONS 5.7.2 Single 2-Wire Control, Separate Power ......20 5.7.3 Control Sending 24 VAC “ON”... - Page 5 TABLE OF CONTENTS HE-Series 7.8 HE8X SERVICE PARTS ...........33 7.8.1 HE8XIN Service Parts ............33 7.8.2 HE8XRT Service Parts ............34 8.0 TROUBLESHOOTING 9.0 FACTORY ASSISTANCE TABLE OF ILLUSTRATIONS Figure 1.2.0 HE8XIN Airflow Orientation ....................8 Figure 1.2.1 HE8XRT Airflow Orientations ....................8 Figure 2.4.0 E-Box With Motor Starters ....................9 Figure 3.0.0 HE8X Rigging Requirements ..................
- Page 6 3: Voltage Codes "1" & "9" only available with Phase Code "1" (Single-Phase). 4: Voltage Codes "4" & "8" only available with Phase Code "3" (Three-Phase). 5: Voltage Code "8" (575V) not available with models HE07-, HE10-, & HE1.5. For Technical Support E-mail: RenewaireSupport@renewaire.com To Place an Order E-mail: RenewaireOrders@renewaire.com 1.800.627.4499...
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Page 7: Overview
VFDs, a RenewAire Commercial Controller, or by a BMS. There are a number of different control devices available to control the operation or speed of the unit fans. For further information on available control accessories, see the HE RenewAire catalog. -
Page 8: Airflow
OVERVIEW HE-Series 1.2 AIRFLOW There is one airflow option for the HE8XIN. It is: HE8XINH. HE6XIN, HE8XIN MODEL DESCRIPTION OF DUCT CONNECTION CONFIGURATION HE8XINH Return Air [RA] and Outside Air [OA] enter on the same side of the unit. FIGURE 1.2.0 HE8XIN AIRFLOW ORIENTATION There are four different airflow options for the HE8XRT. -
Page 9: Component Descriptions
24 VAC STEP-DOWN TRANSFORMER (WITH BUILT-IN CIRCUIT BREAKER) LOW-VOLTAGE TERMINAL STRIP (ALL CONTROL WIRING IS CONNECTED HERE) POWER SUPPLY WIRING CONNECTED HERE ON TOP OF DISCONNECT SWITCH DISCONNECT SWITCH GROUND BUS FIGURE 2.4.0 E-BOX WITH MOTOR STARTERS 1.800.627.4499 www.renewaire.com (800) 627- 4499 support@renewaire.com... -
Page 10: Filters
Any discovered shipping damage should be immediately reported to the RenewAire sales rep and the damage must be recorded on the Bill Of Lading, prior to signing for acceptance of the shipment. -
Page 11: Unit Weights And Dimensions
SHIPPING/RECEIVING HE-Series 3.1 UNIT WEIGHTS AND DIMENSIONS 3.1.1 Unit Dimensions and Weight HE8XIN: 108" L x 81" W x 81 5/8" H 2,235–3,099 lbs., varies by option(s) HE8XRT: 113 1/8" L x 106" W x 81 5/8" H 2,301–3,166 lbs., varies by option(s) 3.1.2 Shipping Dimensions and Weight HE8XIN: 116"... -
Page 12: Receiving
Upon receipt of the HE8X, inspect the unit for obvious external damage. If damage is observed, take digital pictures and report the damage to your RenewAire rep. Note the damage on the carrier’s Bill of Lading. Depending on expected transport and storage conditions, the unit may have only the duct openings covered, it may be stretch-wrapped or it may be crated. -
Page 13: Service Clearances
UNIT PLACEMENT HE-Series 4.2 SERVICE CLEARANCES ABBREVIATIONS EA: Exhaust Air to outside 34 3/4" OA: Outside Air intake RA: Room Air to be exhausted Minimum FA: Fresh Air to inside Service Area INSTALLATION ORIENTATION Unit must be installed in orientation shown. -
Page 14: Ducts
INSTALLATION HE-Series 4.3.3 Ducts Make sure the ductwork at the unit outlets is stiff enough to resist the flexure and resulting booming associated with system start-up and shut-off, as well as the turbulent flow conditions at the blower outlets. In general, provide smooth transitions from the ERV’s outlets to the duct. The ducts connecting to the outlets should be straight for a sufficient distance, with gradual transitions to the final duct size. -
Page 15: Hood Installation
HE-Series Optional installation on owner-provided rails (HE8XRTH only): RenewAire recommends that all HE8XRT units be installed on a RenewAire-supplied curb that is manufactured to match individual units. The only unit that may be installed on owner-supplied mountings rails is the HE8XRTH. When owner-supplied mounting rails are used, RenewAire cannot provide installation instructions and it is the responsibility of the installer to verify compliance with all local building codes and structural integrity of the installation. -
Page 16: Inside Ductwork System
INSTALLATION HE-Series Ducts connecting the HE8XIN to the outside must be insulated, with sealed vapor barrier on both inside and outside of the insulation. Insulate both the Outside Air (OA) and Exhaust Air (EA) ducts. 5.3.1.2 Inside Ductwork System Ensure Good Ductwork Design Ductwork should be designed to allow the unit to provide the required airflow and reduce pressure drop for efficient, quiet operation. -
Page 17: Factory-Recommended Electric Service Entry
INSTALLATION HE-Series CAUTION Before bringing power to the unit check unit nameplate to confirm it matches the voltage and phase of the power you are supplying. Remember that your field connections need to be accessible for inspection. 5.5.1 Factory-Recommended Electric Service Entry CAUTION Knockouts are provided in the bottom of the E-box for entry of high-voltage power supply Do not remove or disable... -
Page 18: How To Reset The 24Vac Circuit Breaker
INSTALLATION HE-Series 5.5.3 How to Reset the 24VAC Circuit Breaker If the transformer is subjected to an excessive load or a short circuit, the circuit breaker will trip to prevent the failure of the transformer. When it trips the circuit breaker’s button pops up. Shut off the primary-side power to the unit, and remove the excessive load or the short. -
Page 19: Wiring Schematic
INSTALLATION HE-Series 5.6 WIRING SCHEMATIC FIGURE 5.6.0 GENERIC THREE-PHASE WIRING SCHEMATIC 1.800.627.4499... -
Page 20: External Control Connections
INSTALLATION HE-Series 5.7 EXTERNAL CONTROL CONNECTIONS 5.7.1 Single 2-Wire Control, Unpowered NOTE: The sim- plified schematics See Figure 5.7.0 if the control requires no power from the ERV and acts as a simple ON/OFF below show only switch. The control must not supply any power to the ERV. the relevant portions of Install jumper (provided) between terminals 2 and 3. -
Page 21: External Control Using Erv Power Supply
INSTALLATION HE-Series 5.7.4 External Control Using ERV Power Supply See Figure 5.7.2 if external control is to be applied using 24VAC from the ERV power supply. External control system must not draw more than 8VA. Install jumper (provided) between terminals 2 and 3. Connect the switched output of the control to terminal 4 to operate the ERV’s isolation relay for the OA/SA blower. -
Page 22: Control With 2 "On" Signals, External Power
OPERATION HE-Series 5.7.6 Control with 2 “ON” Signals, External Power See Figure 5.7.4 if the controller is sending two 24VAC “ON” signals from an external power source. Verify there is NO jumper between terminals 2 and 3. Apply one 24 VAC signal to terminals 3 and 4 to operate the isolation relay for the SA blower. Apply the second 24 VAC signal to terminals 3 and 5 to operate the isolation relay for the EA blower. -
Page 23: Inspect Foam Gasketing
OPERATION HE-Series 6.2.4 Inspect Foam Gasketing Inspect the gasketing to make sure there are no gaps allowing air movement around the cores or filters. 6.2.5 Inspect Belts and Verify Sheave Alignment Prior to shipment from the factory, sheaves are carefully aligned and belts are tensioned. Inspect the motor mount to verify that it did not shift during shipment of the unit. -
Page 24: Balancing Airflows
OPERATION HE-Series 6.4 BALANCING AIRFLOWS NOTE: ERV airflows During the construction and installation phases of a project, dust, dirt and debris will often are to be balanced accumulate inside a unit. Thoroughly clean the inside of the unit by vacuuming and/or wiping metal after all ductwork is surfaces with a damp rag. - Page 25 OPERATION HE-Series Pressure Ports (4) NOTE: Make sure clean filters are installed before balancing airflow. Dirty or clogged filters reduce airflow through the unit. NOTE: Clean filter pressure drop is included in unit FIGURE 6.4.0 HE8X PRESSURE PORT LOCATIONS airflow performance tables.
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Page 26: Filter Pressure Drop
OPERATION HE-Series Initial Pressure Drop of MERV 8 Filters 6.4.2 Filter Pressure Drop supplied with this unit Pleated_Filter_PD_OCT17 (8)20x20x2 MERV 13 (IOM) 2000 3000 4000 5000 6000 7000 8000 9000 Unit Airflow (CFM) Initial Pressure Drop of MERV 13 Filters FIGURE 6.4.1 INITIAL PRESSURE DROP OF MERV 8 FILTERS, SUPPLIED WITH THIS UNIT (available option) 2000 3000 4000 5000 6000 7000 8000 9000... -
Page 27: Sheave Adjustment
OPERATION HE-Series 6.4.3 Sheave Adjustment All fan motors that are not controlled by a VFD are equipped with an adjustable sheave. These adjustable sheaves must be re-set in the field to attain optimum performance of the ERV. This adjustment is to be done after all ductwork is connected. Adjustable sheaves are held in position on the drive motor shaft by a set screw that is normally hidden until the belt(s) is removed. -
Page 28: Unit Maintenance
HE-Series 7.0 UNIT MAINTENANCE WARNING RenewAire ERVs are built to operate with minimal maintenance. After unit commissioning, the Danger of injury if unit primary areas of attention are the air filters, periodic lubrication of the fan motors and annual starts unexpectedly. -
Page 29: Sheave Condition
Do not install new belts on worn sheaves. If the sheaves have grooves worn in them, they must be replaced before new belts are installed. 7.5.3 Motor Cleanliness Removing dust and grease buildup on the motor housing assists proper cooling. Never wash- www.renewaire.com (800) 627- 4499 support@renewaire.com down the motor with high pressure spray. -
Page 30: Enthalpic Core Maintenance
MAINTENANCE HE-Series 7.6.1 Enthalpic Core Maintenance The enthalpic core media is a fibrous material that must be kept clean at all times. As a minimum, cores should be cleaned once per year. DO NOT WASH OR ALLOW THE ENTHALPIC CORES TO GET WET. DO NOT EXPOSE THE ENTHALPIC CORES TO HIGH HEAT OR FLAMES. -
Page 31: Maintenance Records
MAINTENANCE HE-Series 7.7 MAINTENANCE RECORDS MAINTENANCE LOG ENTER DATES OF SERVICE OA FILTER RA FILTER INSPECTION/ CLEAN CLEAN INITIALS CHANGE CHANGE CLEANING CORE BLOWERS 1.800.627.4499... - Page 32 MAINTENANCE HE-Series MISCELLANEOUS SERVICE NOTES DATE SERVICE INITIALS 1.800.627.4499...
- Page 33 MAINTENANCE HE-Series 7.8 HE8X SERVICE PARTS 7.8.1 HE8XIN Service Parts FIGURE 7.8.0 HE8XIN SERVICE PARTS 1.800.627.4499...
- Page 34 MAINTENANCE HE-Series 7.8.2 HE8XRT Service Parts FIGURE 7.8.1 HE8XRT SERVICE PARTS 1.800.627.4499...
- Page 35 TROUBLESHOOTING HE-Series 8.0 TROUBLESHOOTING If problems occur with a RenewAire ERV, the primary resources for trouble-shooting are the unit as-built wiring schematics and the Sequence Of Operation (SOO) for each control scheme. 9.0 FACTORY ASSISTANCE In the unlikely event that you need assistance from the factory for a specific issue, make sure that you have the information called for in the Unit Records page in the Owner Information section of this manual.
- Page 36 About RenewAire For over 40 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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