MORTEXPRODUCTSINC FORTWORTH,TX76106 Page1
USERS INFORMATION MANUAL
DOWNFLOW For Installation In:
SINGLE AND TWO STAGE
1. Manufactured (Mobile) Home 2. Recreational Vehicle
ELECTRIC FURNACE 3. Modular Homes & Buildings 4. Residential Homes
MODELS: E30 SERIES
LIST OF SECTIONS – USERS INFORMATION MANUAL
1 – General 1 4 – Start Up & Shutdown Instructions 4
2 – Safety 2 5 – Owner Maintenance 4
3 – Owners Information & Seasonal Information 3
LIST OF SECTIONS – SERVICE AND MAINTENANCE MANUAL
1 – Safety 7 5 – Trouble Shooting 10
2 – Furnace Maintenance 8 6 – Blower Performance 12
3 – Furnace Controls 9 7 – Accessories and Replacement Parts Lists 16
4 – Sequence of Operation 9 8 – Replacement Parts 17
LIST OF FIGURES
1 – Circuit Breaker Locations 3 9 – Component Locations 9
2 – Return Air Louvered Door Air Filter Location 5 10 – Constant Torque Motor Terminal Locations 10
3 – Return Air Louvered Door Air Filters 5 11 – Heater Contactor Terminal Designations 11
4 – Coil Cabinet Top Pleated Filter Location 6 12 –
Blower Mounting Plate and Screw Locations 11
5 – Coil Hanging Filter Location 6 13 – Replacement Parts Drawing 1/3 HP Constant Torque Motor 17
6 – Replacing the Coil Cabinet Front Door 6 14 – Replacement Parts Drawing 1/2 HP Constant Torque Motor 18
7 – Control Box Cover 8 14 – Replacement Parts Drawing 3/4 HP Constant Torque Motor 19
8 – Blower Assembly and Mounting Screw Location 8
LIST OF TABLES
1 – Constant Torque Motor Terminal Connections 11 6 - Accessory Parts List 16
2 – Blower Performance 1/3 HP – Constant Torque Motor 12 7 – Replacement Parts List 1/3 HP – Constant Torque Motor 17
3 – Blower Performance 1/2 HP – Constant Torque Motor 13 8 – Replacement Parts List 1/2 HP – Constant Torque Motor 18
4 – Blower Performance 1/2 HP – Constant Torque Motor 14 9 – Replacement Parts List 3/4 HP – Constant Torque Motor 19
5 - Blower Performance 3/4 HP – Constant Torque Motor 15
CONTACT INFORMATION
Contact us by mail: Manufactured and Distributed by Mortex Products Inc.
501 Terminal Rd www.mortx.com
Fort Worth, TX 76106
SECTION I: GENERAL
The following list includes important facts and information regarding
the electric furnace and its inclusions.
1. Furnace is rated at 240 volts AC at 60 Hertz
2. Furnace is the same cabinet size for all models
3. All furnaces are equipped with a blower for A/C or Heat Pump
operation.
4. This furnace is designed for downflow and horizontal
application.
5. This furnace must not be operated without furnace door
installed.
NOTE: This furnace and its components listed on the A/C and Heat
Pump equipment sticker were listed in combination as a system by
ETL for the United States.
BLOWER MOTOR SPEED TAP INFORMATION
The constant torque motor is designed with 5 speed taps. The speed
taps are designed to be used as shown below:
Tap 5 is used for HIGH SPEED Cooling operation.
Tap 4 is used for MED-HIGH SPEED Cooling or Heating operation.
Tap 3 is used for MEDIUM SPEED Cooling or Heating operation.
Tap 2 is used for MED-LOW SPEED Heating operation.
Tap 1 is used for LOW SPEED Constant Circulation operation
ONLY. This speed tap circulates around 200 CFM and is energized
by the “G” thermostat terminal. Tap 1 does not circulate enough air
to support the heating or cooling operation. If used for cooling the
evaporator coil will freeze up. If used for heating the limits will open
very quickly.
USERS MUST READ ALL INSTRUCTIONS IN THIS
MANUAL AND THIS MANUAL MUST BE SAVED FOR
FUTURE REFERENCE
FIRE OR ELECTRICAL HAZARD
Failure to follow the safety warnings exactly could result in
serious injury, death, or property damage.
A fire or electrical hazard may result causing property
damage, personal injury or loss of life.
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