MORTEX E30 Series Installation Manual

Downflow or upflow single or two stage electric furnace
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DOWNFLOW OR UPFLOW SINGLE OR TWO STAGE ELECTRIC FURNACE WITH:
•FACTORY INSTALLED ELECTRIC HEAT
•NO HEAT MODELS WITH FIELD INSTALLED ELECTRIC HEAT KITS
FOR INSTALLATION ONLY IN HUD MANUFACTURED HOMES PER CONSTRUCTION SAFETY 24 CFR PART 3280
MODELS: E30 SERIES
1 - General ............................................................................................................1
2 - Safety ...............................................................................................................3
3 - Clearances ......................................................................................................4
5 - Downflow Furnace Installation ..............................................................6
6 - Duct Connector Installation ....................................................................7
1 - Furnace Dimensions .....................................................................................2
2 - Clearances to Combustibles .......................................................................4
3 - Service Access Clearances ...........................................................................4
4 - Typical Closet Installation ............................................................................5
5 - Typical Alcove Installation ...........................................................................5
6 - Return Air Grille Frame Assembly ....................................................................6
7 - Downflow "A" Coil Return Air Filter Location ..............................................6
8 - Duct Connector Depths .......................................................................................7
9 - Duct Connector and Combustible Floor Base ...........................................8
10 - Combustible Floor Base Dimensions ...........................................................8
11 - Duct Connector Dimensions............................................................................8
12 - Typical Upflow Installation ................................................................................9
13 - Upflow Coil Cabinet .............................................................................................9
14 - Upflow Furnace and Coil Cabinet ..................................................................9
15 - Electrical Power Supply Wire Entrances ................................................... 11
1 - Electric Furnace Specifications.........................................................................2
2 - Model Number Nomenclature ........................................................................2
4 - Clearances to Combustibles .............................................................................4
5 - Duct Connector Models ......................................................................................7
6 - Wiring Requirements - Single Branch Circuit ........................................ 12
7 - Wiring Requirements - Dual Branch Circuit ........................................... 12
8 - Electrical Heat Performance Data ................................................................ 12
9 - Low Voltage Wire Gauge and Maximum Lengths ............................... 14
Manufactured and Distributed by:
The following list includes important facts and information regarding this electric furnace.
1. Furnace is rated at 208/240 VAC at 60 Hz.
2. Furnace is the same size for all models.
3. Furnace is designed for A/C or heat pump operation.
4. Hold-down strap furnished with furnace.
5. This furnace is designed for downflow or upflow applications only.
6. This furnace must not be operated with the control box cover
and front access panel removed.
7. This furnace is listed by ETL for the United States and Canada.
MORTEX PRODUCTS INC.
501 TERMINAL RD FORT WORTH, TX 76106
INSTALLATION MANUAL
LIST OF SECTIONS
LIST OF FIGURES
LIST OF TABLES
CONTACT INFORMATION
Mortex Products Inc
501 Terminal Rd
Fort Worth, TX 76106
SECTION 1: GENERAL
THIS APPLIANCE HAS AN IPX1 RATING
...................................................................................10
10 - Blower Motor Speed Tap Selection ..................................................19
11 - Blower Performance ..............................................................................21
12 - Final System Checks and Startup ......................................................25
13 - Wiring Diagrams ......................................................................................26
16 - Control Box Component Locations .....................................................13
17 - Control Box Cover and Circuit Breaker Location ....................................13
18 - 1-Stage Heat & Cool Low Voltage Connections - 1 Transformer..16
24 - Constant Torque Motor Terminals .............................................................. 19
25 - Wiring Diagram - 6 kW Electric Heat ......................................................... 26
26 - Wiring Diagram - 8 kW and 10 kW Electric Heat .................................. 27
27 - Wiring Diagram - 12 kW Electric Heat ....................................................... 28
28 - Wiring Diagram - 15 kW Electric Heat ....................................................... 29
29 - Wiring Diagram - 20 kW Electric Heat ....................................................... 30
12 - Constant Torque Motor Speed Tap Descriptions ................................. 19
13 - Constant Torque Motor Terminal Descriptions ..................................... 19
8. This air handler is for use at elevations of 10,000 ft (3,048m) or less.
9. This appliance is not to be used by persons (including children)
with reduced physical, sensory or mental capabilities, or lack of
experience and knowledge, unless they have been given
supervision or instruction concerning use of this appliance by a
person responsible for their safety. Children must not be allowed
to play with this appliance.
SAVE THIS MANUAL FOR FUTURE REFERENCE
9700771
www.mortx.com
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Summary of Contents for MORTEX E30 Series

  • Page 1: Table Of Contents

    •FACTORY INSTALLED ELECTRIC HEAT •NO HEAT MODELS WITH FIELD INSTALLED ELECTRIC HEAT KITS FOR INSTALLATION ONLY IN HUD MANUFACTURED HOMES PER CONSTRUCTION SAFETY 24 CFR PART 3280 MODELS: E30 SERIES THIS APPLIANCE HAS AN IPX1 RATING LIST OF SECTIONS 1 – General ......................1 8 –...
  • Page 2: Furnace Dimensions

    Top of Cabinet 97-FLSB-21 Louvered 120 (56.369) 20 x 20 23 1/4 (590.5) 25 (635) 19 3/4 (501.65) All Mortex 96 series 97-FSOB-21 Solid 160 (75.159) 20 x 24 23 1/4 (590.5) 25 (635) 19 3/4 (501.65) coil will fit in Cabinet...
  • Page 3: Safety

    Conditioning Systems (NFPA 90B) • National Electrical Code (NFPA 70) (USA) • Canadian Electrical Code, Part I (CSA C22.1) (CANADA) • All local codes (State, City, and Township) MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 3...
  • Page 4: Clearances

    • Minimum 250 in² (161,290 mm²) free area opening • Use Return Grille, A/C Coil Cabinet, or any return grille with a minimum 250 in² (161,290 mm²) free area opening Figure 3: Service Access Clearances MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 4...
  • Page 5: Return Air Requirements & Supply Air Distribution System

    Systems Guide to Best Practices” by Manufactured Housing Research Alliance (MHI-MHRA) be reviewed before selecting the air distribution system for use in the application. Figure 4: Typical Closet Installation MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 5...
  • Page 6: Downflow Furnace Installation

    Use two Figure 6: Return Air Grille Frame Assembly screws to secure the furnace and floor base to the floor. MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 6...
  • Page 7: Duct Connector Installation

    5. It is recommended to place insulation between the floor base and the floor when used on a combustible floor to prevent the MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 7...
  • Page 8: Upflow Coil Cabinet & Return Air Cabinet Installation

    13 for location of the metal knockouts. 7. Position the coil cabinet on top of the return air cabinet and secure it to the return air cabinet with at least 4 field supplied screws. MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 8...
  • Page 9: Typical Upflow Installation

    COIL CABINET COIL CABINET DOOR WILL NOT HAVE LOUVERS Figure 14: Upflow Furnace and Coil Cabinet RETURN AIR BOX RETURN AIR FILTER GRILLE FLOOR Figure 12: Typical Upflow Installation MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 9...
  • Page 10: Line Voltage Wiring

    NOTE: Do not install the cable connector in the furnace exterior overcurrent protection (fuse/circuit breaker) size. cabinet hole in the as the sheet metal gauge is too thin. MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 10...
  • Page 11: Electrical Power Supply Wire Entrances

    Table 8. IMPORTANT – Refer to the NEC National Electrical Code (NFPA 70) or the Canadian Electrical Code, Part I (CSA C22.1) and local codes MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 11...
  • Page 12: Wiring Requirements - Single Branch Circuit

    25,629 15,377 15,377 12,789 25,629 25,629 25,629 208 VAC, 60 HZ, 1 PH 4.50 6.01 7.51 4.51 4.51 3.75 7.51 7.51 7.51 Table 8: Electric Heat Performance Data MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 12...
  • Page 13: Control Box Component Locations

    Homeowners should never attempt to perform any maintenance which requires opening the furnace control box cover (See Figure 16). Figure 17: Control Box Cover & Circuit Breaker Location MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 13...
  • Page 14: Low Voltage Wire Gauge And Maximum Lengths

    The thermostat wire colors for typical heating, cooling and heat pump connections are shown in Tables 10 and 11. MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 14...
  • Page 15 LVTB. 11. Connect BROWN thermostat wire (24 VAC common) and the BROWN wire from the outdoor unit compressor contactor to the “C” screw terminal on the LVTB. MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 15...
  • Page 16 LVTB. Refer to the outdoor unit installation manual and wiring diagram for more information. Figure 19: Typical Two-Stage Heat/Single-Stage Cool Low Voltage Connections With Single Transformer in Furnace MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 16...
  • Page 17: 2-Stage Ht/1-Stage Cool Low Voltage Connections - 1 Tfmr .16 20 - 1-Stage Ht/Cool Low Voltage Connections - Separate Tfmrs .17 21 - Low Voltage Connections - Separate Ht/Cool Tstats - 1 Tfmr

    Figure 21: Typical Low Voltage Connections With Figure 23: Typical Heat Pump Low Voltage Separate Thermostats For Heating and Cooling Connections With Separate Transformers and Single Transformer in Furnace in Furnace and Outdoor Unit MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 17...
  • Page 18: Typ Heat/Cool Low Voltage Wire Color Codes & Connections

    * For furnaces with 2-stage electric heat (12kW – 20kW), disconnect BLACK wire (2nd stage heat) from spade terminal on the back of the LVTB “W” terminal and connect to the wire from the W2 thermostat terminal with a wire nut. MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106...
  • Page 19: Blower Motor Speed Tap Selection

    “ON” position. Medium-High Speed Tap - 24 VAC Input High Speed Tap - 24 VAC Input Table 13: Constant Torque Motor Terminal Descriptions Figure 24: Constant Torque Motor Terminals MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 19...
  • Page 20: Constant Torque Motor Factory Speed Tap Settings

    Any thing higher will blow water off the coil and will be the responsibility of the installing contractor. Table 14: Constant Torque Motor Factory Speed Tap Settings MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106...
  • Page 21: Blower Performance

    Minimum CFM for Electric Heat: 6kW = 390 CFM 8kW = 520 CFM 10kW = 650 CFM 12kW = 780 CFM 15kW = 975 CFM 20kW = 1,300 CFM MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 21...
  • Page 22: Blower Performance - 10X9 Blower - 1/2 Hp C.t. Mtr

    Minimum CFM for Electric Heat: 6kW = 390 CFM 8kW = 520 CFM 10kW = 650 CFM 12kW = 780 CFM 15kW = 975 CFM 20kW = 1,300 CFM MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 22...
  • Page 23: Blower Performance - 10X9 Blower - 1/2 Hp C.t. Mtr (Cont.)

    Minimum CFM for Electric Heat: 6kW = 390 CFM 8kW = 520 CFM 10kW = 650 CFM 12kW = 780 CFM 15kW = 975 CFM 20kW = 1,300 CFM MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 23...
  • Page 24: Blower Performance - 10X9 Blower - 3/4 Hp C.t. Mtr

    Minimum CFM for Electric Heat: 6kW = 390 CFM 8kW = 520 CFM 10kW = 650 CFM 12kW = 780 CFM 15kW = 975 CFM 20kW = 1,300 CFM MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 24...
  • Page 25: Final System Checks And Startup

    #1. 11. Set the thermostat to the desired mode and temperature. 5. Switch the circuit breaker(s) in the main electrical panel (circuit breaker box) to the “ON” position. MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 25...
  • Page 26: Wiring Diagrams

    200 CFM which is insuffient to support cooling or heating operation and will result in the indoor coil freezing and tripping of the heating limits. Energized by the “G” thermostat terminal. WARNING – LOW SPEED TAP IS TO BE USED FOR CONSTANT CIRCULATION ONLY! MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 26...
  • Page 27: Wiring Diagram - 8 Kw And 10 Kw Electric Heat

    200 CFM which is insuffient to support cooling or heating operation and will result in the indoor coil freezing and tripping of the heating limits. Energized by the “G” thermostat terminal. WARNING – LOW SPEED TAP IS TO BE USED FOR CONSTANT CIRCULATION ONLY! MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 27...
  • Page 28: Wiring Diagram - 12 Kw Electric Heat

    200 CFM which is insuffient to support cooling or heating operation and will result in the indoor coil freezing and tripping of the heating limits. Energized by the “G” thermostat terminal. WARNING – LOW SPEED TAP IS TO BE USED FOR CONSTANT CIRCULATION ONLY! MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 28...
  • Page 29: Wiring Diagram - 15 Kw Electric Heat

    200 CFM which is insuffient to support cooling or heating operation and will result in the indoor coil freezing and tripping of the heating limits. Energized by the “G” thermostat terminal. WARNING – LOW SPEED TAP IS TO BE USED FOR CONSTANT CIRCULATION ONLY! MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 29...
  • Page 30: Wiring Diagram - 20 Kw Electric Heat

    Energized by the “G” thermostat terminal. WARNING – LOW SPEED TAP IS TO BE USED FOR CONSTANT CIRCULATION ONLY! MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 30...
  • Page 31 Subject to change without notice 61MH0037E Copyright by Mortex Products Inc. 2023 Supersedes: 61MH0037D MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 31...

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