RenewAire HE4XINV, Installation, Operation And Maintenance Manual

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1.800.627.4499 6
HE-Series Indoor
ERV
1.0 OVERVIEW 9
1.1 DESCRIPTION .........................................................9
1.2 AIRFLOW ..............................................................10
1.2.1 Airflow in HE4XINVH ........................................................10
2.0 COMPONENT DESCRIPTIONS 10
2.1 CABINET ..............................................................10
2.2 ENTHALPIC CORES ...............................................10
2.3 FAN/MOTOR ASSEMBLIES .....................................10
2.4 E-BOX ..................................................................11
2.5 FILTERS ...............................................................11
2.6 FACTORY INSTALLED OPTIONS ..............................11
3.0 SHIPPING/RECEIVING/HANDLING 11
3.1 UNIT WEIGHTS AND DIMENSIONS .........................12
3.1.1 Unit Dimensions and Weight ..............................................12
3.1.2 Shipping Dimensions and Weight .......................................12
3.2 RIGGING AND CENTER OF GRAVITY .......................12
3.2.1 HE4XINV Hoisting Weights and COG ..................................12
3.3 RECEIVING ...........................................................13
3.4 STORAGE .............................................................13
4.0 UNIT PLACEMENT 13
4.1 BEFORE YOU BEGIN ..............................................13
4.2 SERVICE CLEARANCES .........................................14
4.3 SOUND ATTENUATION ...........................................14
4.3.1 Outside the Building ..........................................................14
4.3.2 Ducts ...............................................................................14
4.3.3 Radiated Noise .................................................................15
4.3.4 Aerodynamic (Velocity) Noise ............................................15
5.0 INSTALLATION 15
5.1 DUCTWORK ..........................................................15
5.1.1 Ductwork: All Units............................................................ 15
5.1.2 Indoor Sound Attenuation .................................................. 15
5.3 ELECTRICAL REQUIREMENTS ................................16
5.3.1 Factory-Recommended Electric Service Entry.................... 16
5.3.2 Low Voltage Control System ............................................. 17
5.3.3 How to Reset the 24 VAC Circuit Breaker ........................... 17
5.3.4 Limits of Power Output ..................................................... 17
5.4 ELECTRIC WIRING SCHEMATIC ..............................18
5.5
EXTERNAL LOW VOLTAGE CONTROL WIRING
CONNECTIONS .......................................................... 20
5.5.1 Single 2 - Wire Control, Unpowered ...................................20
5.5.2 Single 2 - Wire Control, Separate Power ............................20
5.5.3 Control Sending 24 VAC “ON” Signal .................................20
5.5.4 External Control Using ERV Power Supply ..........................20
5.5.5 Control with 2 Non-Powered Relay Contacts .....................21
5.5.6 Control with 2 “ON” Signals, External Power .....................21
5.6
QUICK-START FOR TESTING CORRECT 3PH WIRING .....22
6.0 OPERATION 22
6.1 PRINCIPLE OF OPERATION ....................................22
6.2 PRE-STARTUP ......................................................22
6.2.1 Verify Voltages ..................................................................22
6.2.2 Verify Transformer Wiring .................................................22
6.2.3 Inspect Filters ..................................................................22
6.2.4 Inspect Foam Gasketing ....................................................22
6.2.5 Inspect Belts and Verify Sheave Alignment ........................23
6.2.6 Inspect Fans .....................................................................23
6.2.7 Inspect and Clean the Cabinet Interior ...............................23
6.2.8 Inspect Ductwork Connections ..........................................23
6.3 UNIT STARTUP ......................................................23
6.3.1 Fixed-Speed Units .............................................................23
6.4 BALANCING AIRFLOWS .........................................23
6.4.1 All Fixed-Speed Units ........................................................ 24
6.4.2 Filter Pressure Drop ..........................................................25
6.4.3 Sheave Adjustment ...........................................................26
6.4.4 Variable-Speed Units ........................................................26
6.5 NORMAL OPERATION ............................................26
6.6 EXTREME COLD OPERATION .................................26
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