
1.800.627.4499
8
HE-Series Indoor
ERV
1.0 OVERVIEW 11
1.1 DESCRIPTION .......................................................11
1.2 AIRFLOW..............................................................11
1.2.1 Airflow in HE2XINH ..........................................................12
1.2.2 Airflow in HE2XINV ..........................................................12
2.0 COMPONENT DESCRIPTIONS 12
2.1 CABINET ..............................................................12
2.2 ENTHALPIC CORES ...............................................12
2.3 FAN/MOTOR ASSEMBLIES.....................................12
2.4 E-BOX ..................................................................13
2.5 FILTERS ...............................................................13
2.6 FACTORY INSTALLED OPTIONS..............................13
3.0 SHIPPING/RECEIVING/HANDLING 13
3.1 UNIT WEIGHTS AND DIMENSIONS .........................14
3.1.1 Unit Dimensions and Weight ..............................................14
3.1.2 Shipping Dimensions and Weight.......................................14
3.2 RIGGING AND CENTER OF GRAVITY .......................14
3.1.1 HE2XINH Hoisting Weights and COG ..................................14
3.1.2 HE2XINV Hoisting Weights and COG ..................................15
3.3 RECEIVING ...........................................................15
3.4 STORAGE .............................................................15
4.0 UNIT PLACEMENT 15
4.1 BEFORE YOU BEGIN ..............................................15
4.2 SERVICE CLEARANCES .........................................16
4.3 SOUND ATTENUATION...........................................16
4.3.1 Outside the Building..........................................................16
4.3.2 Ducts ...............................................................................16
4.3.3 Radiated Noise .................................................................17
4.3.4 Aerodynamic (Velocity) Noise............................................17
5.0 INSTALLATION 17
5.1 DUCTWORK ..........................................................17
5.1.1 Ductwork: All Units............................................................17
5.1.2 Indoor Sound Attenuation ..................................................17
5.2 FLOOR INSTALLATION...........................................17
5.3 SUSPENDED MOUNT ............................................17
5.4 ELECTRICAL REQUIREMENTS................................18
5.4.1 Factory-Recommended Electric Service Entry....................18
5.4.2 Low Voltage Control System .............................................19
5.4.3 How to Reset the 24 VAC Circuit Breaker...........................19
5.4.4 Limits of Power Output .....................................................19
5.5 ELECTRIC WIRING SCHEMATIC ..............................20
5.6 EXTERNAL LOW VOLTAGE CONTROL WIRING
CONNECTIONS .......................................................... 22
5.6.1 Single 2 - Wire Control, Unpowered...................................22
5.6.2 Single 2 - Wire Control, Separate Power............................22
5.6.3 Control Sending 24 VAC “ON” Signal .................................22
5.6.4 External Control Using ERV Power Supply..........................23
5.6.5 Control with 2 Non-Powered Relay Contacts......................23
5.6.6 Control with 2 “ON” Signals, External Power .....................23
5.7 QUICK-START FOR TESTING CORRECT 3PH WIRING
..................................................................................24
6.0 OPERATION 24
6.1 PRINCIPLE OF OPERATION ....................................24
6.2 PRE-STARTUP ......................................................24
6.2.1 Verify Voltages..................................................................24
6.2.2 Verify Transformer Wiring ................................................. 24
6.2.3 Inspect Filters ..................................................................24
6.2.4 Inspect Foam Gasketing....................................................24
6.2.5 Inspect Belts and Verify Sheave Alignment ........................25
6.2.6 Inspect Fans.....................................................................25
6.2.7 Inspect and Clean the Cabinet Interior...............................25
6.2.8 Inspect Ductwork Connections..........................................25
6.3 UNIT STARTUP......................................................25
6.3.1 Fixed-Speed Units.............................................................25
6.4 BALANCING AIRFLOWS .........................................25
6.4.1 All Fixed-Speed Units........................................................26
6.4.2 Filter Pressure Drop..........................................................27
6.4.3 Sheave Adjustment...........................................................28
6.4.Variable-Speed Units ...........................................................28
6.5 NORMAL OPERATION ............................................28
6.6 EXTREME COLD OPERATION .................................28
7.0 MAINTENANCE 29
7.1 MAINTENANCE 24 HRS. AFTER START-UP .............29
7.2 MAINTENANCE 30 DAYS AFTER START-UP.............29
7.3 MAINTENANCE SCHEDULE....................................29
7.4 FILTERS ...............................................................29
7.5 FAN MOTORS .......................................................29
7.5.1 Belt Tension ......................................................................29
7.5.2 Sheave Condition..............................................................30
7.5.3 Motor Cleanliness .............................................................30
7.5.4 Motor Lubrication .............................................................30
7.6 ENTHALPIC CORES ...............................................30
7.6.1 Enthalpic Core Maintenance ..............................................30
7.6.2 Enthalpic Core Removal .................................................... 31
7.6.3 Enthalpic Core Replacement..............................................31
7.7 MAINTENANCE RECORDS .....................................32
TABLE OF CONTENTS