Intertherm E7 Series Electric Furnaces
Technical Specifications and Product Overview
Introduction
The Intertherm E7 Series electric furnace is engineered for all sizes of manufactured and modular homes, emphasizing reliability and low maintenance. These units can be installed freestanding in a utility room or enclosed within an alcove or closet. The E7 Series furnaces are designed to be A/C ready and feature 16 distinct blower speeds to precisely match any cooling requirement.
Image description: Three furnace models are shown: E7ED Downflow Electric Furnace, E7EU Upflow Electric Furnace, and E7EM Upflow/Downflow Electric Furnace.
Features and Benefits
- Choice of Air Conditioning Options: Compatible with 1.5 to 5 ton A/C systems.
- Easy Open Door: Secure for transit, yet allows easy removal for maintenance access.
- Effective Air Filter: Utilizes a universal disposable filter, readily available and simple to replace.
- Nichrome Heating Elements: Provide durable, long-lasting, and efficient heating.
- Appliance Quality Door: Offers protection against rust and corrosion with a baked enamel finish for easy cleaning.
- Fully Insulated Furnace Cabinet: Minimizes heat loss and ensures quiet operation.
- Safety and Dependability: Features auto-reset controls to protect electrical circuitry and built-in circuit breakers for enhanced safety and trouble-free performance.
- Adaptable: Can be configured for dependable heating in either downflow or upflow modes.
- Versatile: Suitable for use with self-contained or split system air conditioners or heat pumps.
- Heating Relays: Contribute to quiet operation.
- Control Board: Manages 16 blower speeds for optimal home comfort.
- 7 Segment LED Display: Simplifies service by indicating furnace mode.
- Upflow/Downflow Furnace (E7EM): Available for versatile installation applications.
- Upflow (E7EU) and Downflow (E7ED) Furnace: Includes a factory-installed coil box and all necessary filters.
- Full line of accessories: Available to meet various installation needs.
Model Identification
The model number provides specific details about the furnace configuration:
- Product Type: E - Electric Furnace
- Generation: 7 - Seventh Series
- Blower: E - Constant Torque, 16 Speed ECM
- Blower Configuration: M - Upflow/Downflow, D - Downflow, U - Upflow
- Primary Capacity: 010 (10 kW) through 023 (23 kW)
- Electrical Code: H - 240-1-60 (240 Volts, 60Hz, 1-Phase)
- Revision: (Indicated by a number)
Diagram description: The model identification breakdown shows how each character in the model number (e.g., E7EM-010H1) corresponds to product type, generation, blower type, configuration, capacity, electrical code, and revision.
Furnace Parts Identification
Diagram description: A visual representation of the furnace interior identifies key components: 2 Pole Relay, Transformer, Control Board, Circuit Breaker, Limits, and Grounding Lug.
Unit Specifications
| FURNACE MODELS E7- | 010H | 012H | 015H | 017H | 020H | 023H |
|---|---|---|---|---|---|---|
| Rated Heating Output, Btuh (see note 1) | 35,000 | 41,000 | 53,000 | 57,000 | 70,000 | 75,000 |
| Watts (Total kw, Heating Elements & Blower) | 10.4 | 12.0 | 15.4 | 16.6 | 20.4 | 22.0 |
| Supply Voltage | 240 Volts/60Hz/1-Phase | |||||
| Heating Elements, No. (Total kw) | 2 (10.0) | 2 (11.6) | 3 (15.0) | 3 (16.2) | 4 (20.0) | 4 (21.6) |
| Motor Speed, H.P. Rating, Amps | 16 Speed, 1/2 HP, 3.6 A | |||||
| Test ESP, in. w.c. Max | 0.3 | |||||
| Optional Cooling Available with factory installed blower | 2.0 - 4.0 Ton | |||||
| Optional Heat Pump Available with factory installed blower | 2.0 - 4.0 Ton | |||||
| Air Filter (Standard) | 18" x 20" x 1" (nominal) | |||||
Note 1: Heating output is rated at the listed voltage. For outputs at voltages other than 240V, multiply the Btuh rating by the following factors: x 0.92 (230V), x 0.84 (220V), x 0.75 (208V).
Furnace Dimensions
Multi-Poise: Width-20" (508mm), Height-29" (737mm), Depth-24 1/2" (623mm)
Upflow/Downflow: Width-20" (508mm), Height-60 5/8" (1546mm), Depth-24 1/2" (623mm)
Electrical Specifications
| MODEL NUMBER E7E*- | SUPPLY CIRCUIT AMPERES | TOTAL AMPERES | MAXIMUM OVER-CURRENT RATING | MINIMUM CIRCUIT AMPACITY |
|---|---|---|---|---|
| 010H1 Single | 45.3 | 60 | 57 | 57 |
| 012H1 Single | 51.6 | 70 | 65 | 65 |
| 012H1 Dual "A" | 27.8 | 35 | 35 | 35 |
| 012H1 Dual "B" | 24.2 | 35 | 30 | 30 |
| 015H1 Single | 66.1 | 90 | 83 | 83 |
| 015H1 Dual "A" | 45.3 | 60 | 57 | 57 |
| 015H1 Dual "B" | 20.8 | 30 | 26 | 26 |
| 017H1 Single | 71.1 | 90 | 89 | 89 |
| 017H1 Dual "A" | 45.0 | 60 | 56 | 56 |
| 017H1 Dual "B" | 26.1 | 35 | 33 | 33 |
| 020H1 Single | 86.9 | 110 | 109 | 109 |
| 020H1 Dual "A" | 45.3 | 60 | 57 | 57 |
| 020H1 Dual "B" | 41.7 | 60 | 52 | 52 |
| 023H1 Single | 93.6 | 125 | 117 | 117 |
| 023H1 Dual "A" | 45.3 | 60 | 57 | 57 |
| 023H1 Dual "B" | 48.0 | 60 | 60 | 60 |
NOTE: Wire size must comply with the applicable revision of the NEC and all other applicable codes.
Anticipator Settings
| Furnace Model | Thermostat Anticipator Setting |
|---|---|
| 010, 012 | 0.2 |
| 015, 017, 020, 023 | 0.4 |
Clearances
| ALL MODELS | CLOSET | ALCOVE | |
|---|---|---|---|
| Front ‡ | 6" | 18" | |
| Back | 0" | 0" | 0" |
| Sides | 0" † | 0" † | 0" † |
| Top | 0" | 0" | 0" |
| Top and Sides of Duct | 0" | 0" | 0" |
| Bottom of Duct | 0" | 0" | 0" |
‡ Service Clearance
† For upflow application using upflow stand, 1" minimum per side.
Physical Dimensions
Diagram description: Detailed diagrams illustrate the physical dimensions and component layouts for the E7EM (Upflow/Downflow), E7EU (Upflow), and E7ED (Downflow) furnaces. Key dimensions such as width, height, and depth are provided, along with the locations of the T-stat connection, A.C. & H.P. knockout, refrigerant line knockout, and VentilAire bracket attachment points. The E7EU is noted to have a solid door and is oriented opposite to the E7ED.
Diagram description: The E7 Furnace Upflow Stand dimensions are shown, indicating its overall size and noting that the VentilAire accessory attaches to either the left or right side of the stand.
Available Coil Cabinets
| Coil Box | Dimension A Width (mm) | Dimension B Depth (mm) | Dimension C Height (mm) |
|---|---|---|---|
| 1006730 | 20" (508mm) | 24" (610mm) | 31.5" (802mm) |
| 1006731 | 20" (508mm) | 24" (610mm) | 31.5" (802mm) |
| 904067 | 20" (508mm) | 24" (610mm) | 27" (686mm) |
| 902976 | 20" (508mm) | 24" (610mm) | 29" (736mm) |
Airflow Data
E7 Airflow Data
| MODEL NUMBER E7E*-0**H1 | MOTOR SWITCH SETTINGS (0=OFF, 1=ON) | AIRFLOW (CFM) EXTERNAL STATIC PRESSURE (IN. W.C.) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1/5 | 2/6 | 3/7 | 4/8 | 0.1 CFM | 0.2 CFM | 0.3 CFM | 0.4 CFM | 0.5 CFM | 0.6 CFM | |
| 0 | 0 | 0 | 0 | 685 | 640 | 606 | 560 | 513 | 460 | |
| 1 | 0 | 0 | 0 | 770 | 727 | 692 | 648 | 599 | 552 | |
| 0 | 1 | 0 | 0 | 854 | 815 | 779 | 737 | 685 | 645 | |
| 1 | 1 | 0 | 0 | 939 | 902 | 865 | 825 | 771 | 737 | |
| 0 | 0 | 1 | 0 | 1,012 | 974 | 938 | 899 | 850 | 813 | |
| 1 | 0 | 1 | 0 | 1,084 | 1,047 | 1,011 | 973 | 930 | 888 | |
| 0 | 1 | 1 | 0 | 1,157 | 1,119 | 1,084 | 1,047 | 1,009 | 964 | |
| 1 | 1 | 1 | 0 | 1,197 | 1,166 | 1,130 | 1,093 | 1,056 | 1,017 | |
| 0 | 0 | 0 | 1 | 1,245 | 1,215 | 1,178 | 1,143 | 1,105 | 1,066 | |
| 1 | 0 | 0 | 1 | 1,293 | 1,263 | 1,225 | 1,192 | 1,154 | 1,114 | |
| 0 | 1 | 0 | 1 | 1,344 | 1,312 | 1,278 | 1,242 | 1,206 | 1,169 | |
| 1 | 1 | 0 | 1 | 1,394 | 1,361 | 1,330 | 1,291 | 1,257 | 1,223 | |
| 0 | 0 | 1 | 1 | 1,434 | 1,401 | 1,369 | 1,332 | 1,299 | 1,267 | |
| 1 | 0 | 1 | 1 | 1,473 | 1,441 | 1,408 | 1,373 | 1,340 | 1,311 | |
| 0 | 1 | 1 | 1 | 1,514 | 1,483 | 1,451 | 1,417 | 1,386 | 1,355 | |
| 1 | 1 | 1 | 1 | 1,555 | 1,525 | 1,494 | 1,460 | 1,431 | 1,398 | |
NOTES:
- 1. Motor switch settings for heating speeds use HEAT switches 1, 2, 3, and 4. For cooling speeds use COOL switches 5, 6, 7, and 8.
- 2. Data is shown with filter.
Maximum Heating Airflow Settings
| E7E*-0**H1 | E7EM | E7ED | E7EU | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DOWNFLOW | UPFLOW | DOWNFLOW | UPFLOW | DOWNFLOW | UPFLOW | |||||||
| MH | RES | MH | RES | MH | RES | MH | RES | MH | RES | MH | RES | |
| 10 | 0101 | 0001 | 0101 | 0001 | 0101 | 0101 | 0101 | 0101 | ||||
| 12 | 0011 | |||||||||||
| 15 | 0101 | 0101 | 0001 | 0101 | 0101 | 0101 | 0101 | |||||
| 17 | 0101 | |||||||||||
| 20 | 0011 | 0001 | 0011 | 0001 | 0011 | 0001 | ||||||
| 23 | ||||||||||||
NOTES:
- 1. MH and Res represent Manufactured Housing and Residential (modular home) applications, respectively.
- 2. To comply with government mandated efficiency standards, speed settings with higher CFM values than listed in this table are not allowed in HEAT mode.
Accessories
| Description | Part Number |
|---|---|
| High Airflow Blower Kit | 1044062 |
| Heating Thermostat Intertherm (12 Pac) | 903188 (903182) |
| Heating Thermostat Miller (12 Pac) | 903189 (903183) |
| Thermostat Sub-Base | 914146 |
| Heating/Cooling Thermostat CM65 Intertherm/Miller (12 Pac) | 903992 (903993) |
| Heating/Cooling Thermostat GE Intertherm (12 Pac) | 903192 (903186) |
| Heating/Cooling Thermostat GE Miller (12 Pac) | 903193 (903187) |
| Automatic Damper for AC or HP Package Unit | 901083 |
| "VEE” Box Adapters (10") - 5 / carton | 901985 |
| Duct Connector 10" Diameter x 6" Long - 6 / carton | 902926 |
| "VEE" Box Adapters (12") - 5 / carton | 902149 |
| Single Wide Fitting Kit (12") | 911468A |
| Double Wide Fitting Kit (12") | 911469A |
| Single Wide Fitting Kit (14") | 914957 |
| Double Wide Fitting Kit (14") | 914956 |
| Y-Fitting (12") | 911470 |
| Y-Fitting (14") | 917195 |
| Fan Delay Kit (TDR) | 911758 |
| Top Grille/Frame | 902989 |
| Top Grille/Frame (4 pack) | 903000 |
| Cabinet to Combine w/ Grille/Frame | 903891 |
| Upflow Stand | 1014501 |
| Coil Cabinet (For all sizes), Upflow & Downflow w/ Solid Door | 1006730 |
| Coil Cabinet (For all sizes), Upflow & Downflow w/ Louvered Door | 1006731 |
| Coil Cabinet Downflow (Front return) | 904067 |
| Coil Cabinet Upflow (Solid door, limited capacities) | 902976 |
Accessory Kits
Vent Kits
| Description | Part Number |
|---|---|
| Soffit Air Inlet (for VentilAire III only) | 917201A |
| VentilAire III - Sloped 3/12 | 914098 |
| VentilAire IV - Sloped 3/12 | 914229 |
| VentilAire V - Sloped 3/12 | 1018547 |
Plenum Connectors
| Description (Dimensions) | Quantity/Carton | Part Number |
|---|---|---|
| 11.25 x 13.50 x 0.88 | 12 / carton | 901987A |
| 11.25 x 13.50 x 2.00 | 12 / carton | 901988A |
| 11.25 x 13.50 x 4.25 | 6 / carton | 901989A |
| 11.25 x 13.50 x 6.25 | 6 / carton | 901990A |
| 11.25 x 13.50 x 8.25 | 4 / carton | 901991A |
| 11.25 x 13.50 x 10.25 | 3 / carton | 901992A |
| 11.25 x 13.50 x 12.25 | 3 / carton | 901993A |
| 11.25 x 13.50 x 6.25 | 24 / carton | 902681A |
General Terms of Limited Warranty
For complete details of the Limited Warranty, including applicable terms and conditions, see your local installer or contact the Nortek Global HVAC, LLC warranty department for a copy.
Before purchasing this appliance, read important energy cost and efficiency information available from your retailer. Specifications and illustrations are subject to change without notice and without incurring obligations. Printed in U.S.A. (10/22)
Product Information: 492F-1022 (Replaces 492F-0122)
Website: www.intertherm.net
Trademark Intertherm® used under license. ©Nortek Global HVAC, LLC. All Rights Reserved.
Certifications include NATE, AHRI Certified, ETL Listed, and HRAI Member Company.
