Nortek Global HVAC High Airflow Blower Kit for Cooling Airflow Instruction Manual
- June 12, 2024
- Nortek Global HVAC
Table of Contents
High Airflow Blower Kit for Cooling Airflow
Instruction Manual
High Airflow Blower Kit for Cooling Airflow
INSTALLATION INSTRUCTIONS
HIGH AIRFLOW BLOWER KIT FOR COOLING AIRFLOW
This kit is intended to provide increased airflow over the factory installed
E7 blower assembly.
IMPORTANT SAFETY INFORMATION
INSTALLER: Please read all instructions before servicing this equipment.
Pay attention to all safety warnings and any other special notes highlighted
in the manual. Safety markings are used frequently throughout this manual to
designate a degree or level of seriousness and should not be ignored.
WARNING – Indicates a potentially hazardous situation that if not
avoided, could result in personal injury or death.
WARNING:
ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly could result in serious injury or
property damage. Improper servicing could result in dangerous operation,
serious injury, death or property damage.
- Before servicing, disconnect all electrical power to furnace.
- When servicing controls, label all wires prior to disconnecting. Reconnect wires correctly.
- Verify proper operation after servicing.
- Disconnect all power to the unit and remove the door.
- Remove the left access panel, and disconnect the motor power and signal wires from the control board.
- Remove the 4 screws securing the blower housing and slide the assembly out of the unit.
- Install the new assembly in the same location while making sure the housing flanges slide underneath the blower deck tabs.
- Route the motor power and signal wires to the board and connect them according to the existing wiring diagram.
- Adjust the HEAT and COOL dipswitch settings for the desired airflow.
- Reinstall access panel and door and restore power to the unit.
Table 1. Dipswitch Settings and Airflow Data
| DIP SWITCH SETTING | EXTERNAL STATIC PRESSURE (IN W.C.) |
|---|---|
| 1/4 | 2/5 |
| 0 | 0 |
| 1 | 0 |
| 0 | 1 |
| 1 | 1 |
| 0 | 0 |
| 1 | 0 |
| 0 | 1 |
| 1 | 1 |
| 0 | 0 |
| 1 | 0 |
| 0 | 1 |
| 1 | 1 |
| 0 | 0 |
| 1 | 0 |
| 0 | 1 |
| 1 | 1 |
NOTES:
- Airflow values were measured with 23kW heater kit and clean factory air filter installed, and no cooling coil cabinet attached.
- If using 15kW or 17 kW of electric heat, add 50 cfm to these values. If using 10kW or 12kW, add 100 cfm to these values.
- Pressure drop of clean factory air filter is 0.08 inch W.C.
Table 2. E7 Furnace with High Airflow Blower Kit Electrical Data
| | Single Circuit
---|---|---
Circuit A| Circuit B| 208V| 240V
Model Number| MCA| MOP| MOP Breaker| MCA| MOP| MOP Breaker| Rated MCA| Rated
MOP| Rated MCA| Rated MOP
E7E-010H2| 59| 53.8| 40| | –| | 51.8| 60| 59| 70
E7E-012H2| 37| 36.3| 60| 30| 24.2| 30| 59.0| 80| 67| 90
E7E-015H2| 59| 53.8| 60| 26| 20.8| 35| 74.4| 80| 85| 100
E7E-017H2| 56| 45.0| 60| 35| 34.7| 60| 89.8| 100| 91| 125
E7E-020H2| 59| 53.8| 60| 52| 41.7| 60| 96.9| 110| 111| 125
E7E-023H2| 59| 53.8| 20| 60| 48.3| 20| 104.1| 20| 119| 20
Specifications & illustrations subject to change
without notice or incurring obligations (09/22).
O’Fallon, MO, © Nortek Global HVAC LLC 2022. All Rights Reserved.
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