7
1.800.627.4499
HE-Series Indoor
ERV
Figure 1.2.0 HE4XINV Airflow Orientations ................................. 10
Figure 2.4.0 E-Box With Motor Starters ...................................... 11
Figure 3.2.0 HE4XINV Weights and COG ..................................... 12
Figure 4.2.0 HE4XINV Service Clearance .................................... 14
Figure 5.3.0 E-Box Wiring Entry Points ....................................... 16
Figure 5.4.0 Generic Single-Phase Wiring Schematic .................. 18
Figure 5.4.1 Generic Three-Phase Wiring Schematic................... 19
Figure 5.5.0 Single 2-Wire Control, Unpowered .......................... 20
Figure 5.5.1 24 VAC From External Source ................................. 20
Figure 5.5.2 External Control Using ERV 24 VAC ......................... 21
Figure 5.5.3 Control with 2 Non-Powered Relay Contacts ........... 21
Figure 5.5.4 Control with 2 “ON” Signals, External Power ........... 21
Figure 6.4.0 HE4XINV Pressure Port Locations .......................... 24
Figure 6.4.1 Initial Pressure Drop of MERV 8 Filters, Supplied with
this unit..................................................................................... 25
Figure 6.4.2 Initial Pressure Drop of MERV 13 Filters, Available as
an Accessory ............................................................................ 25
Figure 7.5.0 Fan Belt Tensioning ................................................ 28
Figure 7.8.0 HE4XINV Service Parts .......................................... 31
TABLE OF CONTENTS
TABLE OF ILLUSTRATIONS
7.6 ENTHALPIC CORES ...............................................28
7.7 MAINTENANCE RECORDS .....................................30
8.0 TROUBLESHOOTING
31