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Summary of Contents for S&P RenewAire HE Series
- Page 1 HE SERIES ERV Installation, Operation and Maintenance Manual HE6X HE7X HE8X Model: HE7XRT 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 a voltmeter that electric power is off and all fan blades have is off and wear protective equipment per NFPA 70E before stopped rotating before working on the unit.
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Page 3: Owner Information
OWNER INFORMATION HE-Series READ AND SAVE THIS MANUAL/LIRE ET CONSERVER CE MANUEL NOTICE NOTE: This unit is an Energy Recovery This manual contains space for maintaining written records of unit maintenance and/ Ventilator, or ERV. or repairs. See Section 7.7 Maintenance Records. At the time the ERV is commissioned, a It is commonly referred to maintenance schedule should be developed by the user to incorporate monthly and seasonal throughout this manual as... -
Page 4: Table Of Contents
TABLE OF CONTENTS HE-Series 1.0 OVERVIEW 5.6.2 Low Voltage Control System ..........20 5.6.3 How to Reset the 24VAC Circuit Breaker ......21 1.1 DESCRIPTION ............7 5.6.4 Limits of Power Output ............ 21 5.7 WIRING SCHEMATIC ..........22 1.2 AIRFLOW ..............8 5.8 EXTERNAL CONTROL CONNECTIONS ..... - Page 5 TABLE OF CONTENTS HE-Series 7.6 ENTHALPIC CORES ..........37 7.6.1 Enthalpic Core Maintenance ..........37 7.6.2 Enthalpic Core Removal ............37 7.6.3 Enthalpic Core Replacement ..........37 7.7 MAINTENANCE RECORDS ........38 7.8 SERVICE PARTS ............40 7.8.1 Indoor Unit Service Parts ...........40 7.8.2 Rooftop Unit Service Parts ..........41 8.0 TROUBLESHOOTING 9.0 FACTORY ASSISTANCE TABLE OF ILLUSTRATIONS...
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Page 6: Configuration Code
CONFIGURATION CODE HE-Series HE MODELS CONFIGURATION GUIDE CONFIGURATION CODE Note: Not all options are available on every model. NOTE: Not all options are available on every model. MODEL NUMBER H E - MODEL NUMBER DIGIT NUMBER DIGIT NUMBER Digits 1–5: Model Digit 18: Flow Control* (see Restrictions 12, 13, &... -
Page 7: Overview
OVERVIEW HE-Series 1.0 OVERVIEW 1.1 DESCRIPTION NOTE: This unit is an Energy Recovery The HE6X/7X/8X Energy Recovery Ventilator is a device for recovering both sensible energy (heat) Ventilator, or ERV. and latent energy (moisture) from the Exhaust Air of an Occupied Space to the Outside Air stream. It is commonly referred to It accomplishes this task by forcing the two airstreams through enthalpic cores, where the energy throughout this manual as... -
Page 8: Airflow
OVERVIEW HE-Series 1.2 AIRFLOW There is one airflow option for the HE6XIN/7XIN/8XIN. It is: INH. HE6XIN, HE8XIN MODEL DESCRIPTION OF DUCT CONNECTION CONFIGURATION Return Air [RA] and Outside Air [OA] enter on the same side of the unit. FIGURE 1.2.0 INDOOR UNIT AIRFLOW ORIENTATION There are four different airflow options for the HE6XRT/HE7XRT/HE8XRT. -
Page 9: Component Descriptions
COMPONENTS HE-Series 2.0 COMPONENT DESCRIPTIONS 2.1 CABINET The cabinet for the HE6X/7X/8X is made of 20 gauge galvanized steel and has 1" thick high- density, foil-backed insulation on the inside. Units are available in either single-wall or double- wall construction. Doors are hinged and are fitted with stainless steel machine screws through the faces to prevent accidental opening of the doors when the unit is in operation. -
Page 10: Filters
SHIPPING/RECEIVING HE-Series 2.5 FILTERS All HE6X/7X/8X units come equipped with MERV 8 20" x 20" x 2" (nominal) pleated filters. MERV 13 filters can be ordered as an accessory and are shipped loose. HE6X has 12 filters, HE7X has 14 filters, HE8X has 16 filters. 20"... -
Page 11: Unit Weights And Dimensions
SHIPPING/RECEIVING HE-Series 3.1 UNIT WEIGHTS AND DIMENSIONS 3.1.1 Unit Dimensions and Weight Indoor Units: 108" L x 81" W x 81 5/8" H 2,248–3,278 lbs., varies by option(s) Rooftop Units: 113 1/8" L x 106" W x 81 5/8" H 2,301–3,416 lbs., varies by option(s) 3.1.2 Shipping Dimensions and Maximum Weight Indoor Units: 116"... -
Page 12: Receiving
SHIPPING/RECEIVING HE-Series 3.3 RECEIVING Upon receipt of the HE6X/7X/8X, 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: Unit Placement
UNIT PLACEMENT HE-Series 4.0 UNIT PLACEMENT 4.1 BEFORE YOU BEGIN The HE6XIN/7XIN/8XIN is designed for installation in a sheltered location, out of the weather. The preferred mounting location is to place the unit on a concrete floor. For all floor-mount installations, the unit should be set on its factory-provided adjustable legs and leveled. - Page 14 UNIT PLACEMENT HE-Series 81 5/8" Minimum Service Area CURB 6X Door Door 76" O.D. 39 3/8" Swing Swing 36" FA Blower Outlet (RTV, RTF) is 22 5/8” x 32 3/8”. Blower can be flipped in opening. 44 5/8" Door Swing 42 1/4"...
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Page 15: Sound Attenuation
UNIT PLACEMENT HE-Series 4.3 SOUND ATTENUATION Take these simple steps to attenuate noise from the unit. 4.3.1 Outside the Building Exhaust velocity noise is the primary cause of unit-related noise outside the building. Size the exhaust duct and grille for less than 1000 FPM air velocity. When practical, orient the exhaust air hood to point away from houses or public areas. -
Page 16: Installation
INSTALLATION HE-Series 5.0 INSTALLATION 5.1 CURB SPECIFICATIONS For all rooftop curbs, the curb is to be placed in a location specified by the architect/engineer as being capable of supporting all known loads. Curbs are to be installed using Industry Best Practices. -
Page 17: Ductwork
INSTALLATION HE-Series Install Top Hood First: Then, install Center Hood: Finally, install Bottom Hood and Plate: 5.3 DUCTWORK NOTE: Ducts inside a 5.3.1 Indoor Units building that are con- 5.3.1.1 Ducts to the Outside nected to the outside must be insulated with a The exhaust outlet and Supply air inlet on the outside of the building should be at least 10' apart sealed vapor barrier on both to avoid cross-contamination. -
Page 18: Exhaust Air Hood
INSTALLATION HE-Series 5.3.3 Exhaust Air Hood Exhaust Air Hood is shipped in the Exhaust Air Blower compartment, along with a bag of screws. Install Hood over exhaust air outlet using pre-drilled holes. 5.3.3.1 Duct Insulation If the inside ducts run through un-conditioned spaces, they must be insulated, with a sealed vapor barrier on both inside and outside of insulation. -
Page 19: Floor Installation-Indoor Units
INSTALLATION HE-Series 5.5 FLOOR INSTALLATION–INDOOR UNITS NOTE: It is the Most units are installed in a location specified by others. In general, it’s preferable to install the installer’s respon- unit on a flat, reasonably level surface, such as a concrete floor. sibility to select appropriate materials 5.6 ELECTRICAL REQUIREMENTS... -
Page 20: Low Voltage Control System
INSTALLATION HE-Series WARNING ARC FLASH AND ELECTRIC SHOCK HAZARD Arc flash and electric shock hazard. Disconnect all electric power supplies, verify with a voltmeter that electric power is off and wear protective equipment per NFPA 70E before working within electric control enclosure. Failure to comply can cause serious injury or death. Customer must provide earth ground to unit, per NEC, CEC and local codes, as applicable. -
Page 21: How To Reset The 24Vac Circuit Breaker
INSTALLATION HE-Series Specifications: Nominal Output Voltage under load: 24VAC Typical Output Voltage at no load: 29–31V Minimum contact rating for connected control device: 50 mA (1.2VA) Circuit Breaker Trip Point: 3A 5.6.3 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. -
Page 22: Wiring Schematic
INSTALLATION HE-Series 5.7 WIRING SCHEMATIC FIGURE 5.7.0 GENERIC THREE-PHASE WIRING SCHEMATIC 1.800.627.4499... -
Page 23: External Control Connections
INSTALLATION HE-Series 5.8 EXTERNAL CONTROL CONNECTIONS NOTE: The sim- 5.8.1 Single 2-Wire Control, Unpowered plified schematics See Figure 5.8.0 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 the low-voltage control Install jumper (provided) between terminals 2 and 3. -
Page 24: External Control Using Erv Power Supply
INSTALLATION HE-Series 5.8.4 External Control Using ERV Power Supply See Figure 5.8.2 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 25: Control With 2 "On" Signals, External Power
OPERATION HE-Series 5.8.6 Control with 2 “ON” Signals, External Power See Figure 5.8.4 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 24VAC signal to terminals 3 and 4 to operate the isolation relay for the SA blower. Apply the second 24VAC signal to terminals 3 and 5 to operate the isolation relay for the EA blower. -
Page 26: 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 27: 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 surfaces with a damp rag. - Page 28 OPERATION HE-Series PRESSURE PORT (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 airflow performance tables. FIGURE 6.4.0 PRESSURE PORT LOCATIONS (TYP) DIFFERENTIAL STATIC PRESSURE ACROSS CORE DSP .
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Page 29: He6X Filter Pressure Drop
OPERATION HE-Series 6.4.2 HE6X Filter Pressure Drop HE6X MERV 8 Filter Pressure Drop 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00 1000 2000 3000 4000 5000 6000 7000 Unit Airflow (CFM) FIGURE 6.4.1 INITIAL PRESSURE DROP OF MERV 8 FILTERS, SUPPLIED WITH HE6X UNITS HE6X MERV 13 Filter Pressure Drop 0.40 0.35... -
Page 30: He7X Filter Pressure Drop
OPERATION HE-Series 6.4.3 HE7X Filter Pressure Drop HE7X MERV 8 Filter Pressure Drop 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00 1000 2000 3000 4000 5000 6000 7000 8000 Unit Airflow (CFM) FIGURE 6.4.3 INITIAL PRESSURE DROP OF MERV 8 FILTERS, SUPPLIED WITH HE7X UNITS HE7X MERV 13 Filter Pressure Drop 0.40 0.35... -
Page 31: He8X Filter Pressure Drop
OPERATION HE-Series 6.4.4 HE8X Filter Pressure Drop HE8X MERV 8 Filter Pressure Drop 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00 2000 3000 4000 5000 6000 7000 8000 9000 Unit Airflow (CFM) FIGURE 6.4.5 INITIAL PRESSURE DROP OF MERV 8 FILTERS, SUPPLIED WITH HE8X UNITS HE8X MERV 13 Filter Pressure Drop 0.40 0.35... -
Page 32: Sheave Adjustment
OPERATION HE-Series 6.4.5 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 33: Unit Maintenance
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 34: Sheave Condition
MAINTENANCE HE-Series Do not pry belts on or off the sheave. Loosen belt tension until the belts can be removed by simply lifting the belts off the sheaves. After replacing belts, ensure that slack in each belt is on the same side of the drive. Belt dressing should never be used. The proper belt setting is the lowest tension at which the belts will not slip under peak load operation. -
Page 35: Ea Blower, All Orientations
MAINTENANCE HE-Series 7.5.5.1 EA Blower, All Orientations FIGURE 7.5.1 INH/RT STANDARD EA BLOWER FIGURE 7.5.2 INH FLIPPED EA BLOWER 7.5.5.2 SA Blower, for INH, RTH, and RTR Orientations FIGURE 7.5.3 INH/RTH/RTR STANDARD SA BLOWER FIGURE 7.5.4 INH/RTH/RTR FLIPPED SA BLOWER 1.800.627.4499... -
Page 36: Sa Blower, For Rtv And Rtf Orientations
MAINTENANCE HE-Series 7.5.5.3 SA Blower, for RTV and RTF Orientations FIGURE 7.5.5 RTV/RTF STANDARD SA BLOWER FIGURE 7.5.6 RTV/RTF FLIPPED SA BLOWER 1.800.627.4499... - Page 37 MAINTENANCE HE-Series 7.6 ENTHALPIC CORES CAUTION RISK OF DAMAGE TO ENTHALPIC CORES Whenever working within the ERV cabinet, protect the enthalpic cores from accidental dam- age. The core media is subject to damage from dropped tools or other foreign objects. CAUTION DO NOT WASH THE ENTHALPIC CORE.
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Page 38: 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 39 MAINTENANCE HE-Series MISCELLANEOUS SERVICE NOTES DATE SERVICE INITIALS 1.800.627.4499...
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Page 40: Service Parts
HE-Series 7.8 SERVICE PARTS 7.8.1 Indoor Unit Service Parts FIGURE 7.8.0 INDOOR UNIT SERVICE PARTS 1.800.627.4499... - Page 41 MAINTENANCE HE-Series 7.8.2 Rooftop Unit Service Parts FIGURE 7.8.1 ROOFTOP UNIT SERVICE PARTS 1.800.627.4499...
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Page 42: Troubleshooting
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. 1.800.627.4499... -
Page 43: Factory Assistance
FACTORY ASSISTANCE HE-Series 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. The person you speak with at the factory will need that information to properly identify the unit and the installed options. - Page 44 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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