E7 Installation Manual

2
TABLE OF CONTENTS
IMPORTANT SAFETY INFORMATION .................... 3
REQUIREMENTS & CODES .................................... 3
Minimum Installation Clearances .....................................3
Minimum Unobstructed Airflow ........................................3
Clearances to Combustible Materials ..............................3
CIRCULATING AIR REQUIREMENTS ..................... 4
Return Air Connections .................................................... 4
Supply Air Connections ....................................................4
Filtering Methods - Downflow Furnaces ........................... 4
Non-Ducted Return Air .................................................. 4
Without A/C or H/P uncased coil ...............................4
With A/C or H/P uncased coil ....................................4
With optional coil housing .......................................... 4
Ducted Return Air ..........................................................4
Filtering Methods - Upflow Furnaces ...............................4
Non-Ducted Return Air .................................................. 4
Without optional upflow stand ....................................... 4
With optional upflow stand .........................................4
Ducted Return Air ..........................................................4
Optional Equipment .........................................................5
Optional Automatic Furnace Damper ............................5
Duct Connectors for Downflow Systems .......................5
FURNACE INSTALLATION ...................................... 5
General Information .........................................................5
Before You Install this Furnace ........................................ 5
Locating the Unit ..............................................................5
Locating & Cutting Floor Openings ..................................5
Standard Duct Connector Installation ..............................6
Narrow Duct Connectors ..................................................7
Round Duct Connector Installation ..................................7
Alcove Installation ............................................................7
Closet Installation .............................................................8
Upflow Furnaces ..............................................................8
Over-the-Floor Return Air System (Non-Ducted) ..........8
Through-the-Floor Return Air System (Ducted) ............9
ELECTRICAL WIRING ............................................. 10
Line Voltage Wiring .......................................................... 10
Connecting Supply Service Wires .................................... 10
Grounding ........................................................................11
Thermostat / Low Voltage Connections ...........................11
Humidifier ......................................................................... 11
Dehumidification Options .................................................11
Electronic Air Cleaner (EAC) ...........................................11
Changing Blower Speed ..................................................11
Installing Control Circuit Wiring ........................................11
START-UP & ADJUSTMENTS ................................. 11
Pre-Start Check List ......................................................... 11
Start-up Procedures ......................................................... 11
FIGURES & TABLES ................................................ 12
Figure 16. E7 Furnace Components .............................12
Figure 17. E7EM Physical Dimensions .........................13
Figure 18. E7EU & E7ED Physical Dimensions ............ 13
Figure 19. E7 Furnace Upflow Stand Dimensions ........14
Airflow Data ......................................................................15
Table 4. E7 Airflow Data ...............................................15
Table 5. Maximum Allowable Heat Settings .................. 15
Electrical Data & Diagrams ..............................................16
Figure 20. E7EB Thermostat Connection .....................16
Table 6. Unit Specifications ...........................................16
Table 7. E7 Electrical Specifications .............................17
Figure 21. E7 Motor Control Board ...............................17
Figure 22. E7EB-010H Models .....................................18
Figure 23. E7EB-012H Models .....................................19
Figure 24. E7EB-015H Models .....................................20
Figure 25. E7EB-017H Models .....................................21
Figure 26. E7EB-020H & E7EB-023H Models ..............22
Table 8. Control Board Operation .................................23
INSTALLATION CHECKLIST ................................... 24