Nortron 21B10M Installation And User Manual
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Nortron 21B10M Installation And User Manual

B series electric furnace
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I
U
M
NSTALLATION AND
SER
ANUAL
B SERIES ELECTRIC FURNACE
®
FB0002
M
: 21B10M, 21B15M, 21B18M, 21B20M, 21B25M, 21B27M, 83B13, 83B24
83B27
ODELS
AND
:
.
IMPORTANT
READ AND SAVE THESE INSTRUCTIONS
Broan-NuTone Canada Inc.; Mississauga, Ontario www.broan.ca 877-896-1119
30042478B

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  • Page 1 NSTALLATION AND ANUAL B SERIES ELECTRIC FURNACE ® FB0002 : 21B10M, 21B15M, 21B18M, 21B20M, 21B25M, 21B27M, 83B13, 83B24 83B27 ODELS IMPORTANT READ AND SAVE THESE INSTRUCTIONS Broan-NuTone Canada Inc.; Mississauga, Ontario www.broan.ca 877-896-1119 30042478B...
  • Page 2 WARNING • Never tamper with the unit or its controls. User MUST contact a • This furnace is not watertight and is not designed for outdoor specialized contractor when a failure occurs. DO NOT ATTEMPT installation. This furnace shall be installed in such a manner as to to repair.

  • Page 3: Table Of Contents

    ABLE OF ONTENTS 1. DIMENSIONS .............................. 3 2. GENERAL REQUIREMENTS AND SPECIFICATIONS ................4 3. OPERATING OPTIONS ..........................5 4. BREAKERS ..............................5 5. INSTALLATION NOTES ..........................6 5.1 C ............................... 6 ETURN 5.2 E ..........................6 LECTRICAL IRING OWER UPPLY 5.3 C ....................

  • Page 4: General Requirements And Specifications

    5. SERVICE CLEARANCE - Units are serviced from the FRONT. Leave at least 24” (610 mm) clearance in front of the door. 240 VOLTS - SINGLE PHASE TEMPERATURE RISE @ 0.20” W. C. MODEL NO. BTHU AMPS INCL. MOTOR HP BLOWER °C °F *SPEED 21B10M 34152 21B15M 51228 MED-LOW 10” x 8” 21B18M** 61473 MED-LOW (254 mm x 203 mm)

  • Page 5: Operating Options

    NOTE: The number of breakers varies according to the furnace model; 21B10M model has no breakers, 21B15M, 21B18M, 21B20M and 83B13 models have 2 breakers and 21B25M, 21B27M, 83B24 and 83B27 models have 3 breakers. Refer to Section 8 Wiring Diagrams.

  • Page 6: Installation Notes

    6. U SE IN OBILE OMES Models 21B10M, 21B15M, 21B18M & 21B20M are certified for “L”-shape SHALLOW DUCT AREA REQUIREMENTS and “T”-shape shallow duct installation with model FSB-1 sub-base in downflow applications when the supply air ducts pass through the floor...

  • Page 7: Using Optional Equipment

    7. U SING PTIONAL QUIPMENT 7.1 T TAGE OR UTDOOR HERMOSTAT Model First Stage (kW) Second Stage (kW) (The SEASON SELECT switch must be in the M position). — 10 kW 15 kW These controls can be used on all furnaces except 10 kW model. 18 kW Follow the directions supplied with the two-stage or outdoor thermostat 20 kW...
  • Page 8 WARNING Risk of electric shock. Disconnect power before installation, servicing, maintenance or field wiring. Replace all panels before operating. Failure to do so can result in electric shock causing severe injuries or death. 21B10M Model Open: 93.3°C MRTP 1 MRTP 2...
  • Page 9 8. W ’ IRING IAGRAMS CONT WARNING Risk of electric shock. Disconnect power before installation, servicing, maintenance or field wiring. Replace all panels before operating. Failure to do so can result in electric shock causing severe injuries or death. 21B18M & 21B20M Models Open: 93.3°C MRTP 1 MRTP 2...

  • Page 10: Wiring Diagrams

    8. W ’ IRING IAGRAMS CONT WARNING Risk of electric shock. Disconnect power before installation, servicing, maintenance or field wiring. Replace all panels before operating. Failure to do so can result in electric shock causing severe injuries or death. 21B27M Model Critical characteristic 1.
  • Page 11 8. W ’ IRING IAGRAMS CONT WARNING Risk of electric shock. Disconnect power before installation, servicing, maintenance or field wiring. Replace all panels before operating. Failure to do so can result in electric shock causing severe injuries or death. 83B13 Model Open: 93.3°C ARTP 25 A...

  • Page 12: Service Parts

    30274191 10941288 Motor 3/4 HP, 240 V - for 21B27MS Breaker 25 Amps 30274192 Motor 1/3 HP, 240 V - for 21B10M, Fiberglass Filter 20” x 20” x 1” 10941203 30010010 21B15M, 21B18M, 21B20M and 21B25M (508 mm x 508 mm x 25 mm)

  • Page 13: Maintenance

    10. M AINTENANCE MOTOR: The motor is lubricated for life and needs no oiling. FILTERS: Size is 20” x 20” x 1” (508 mm x 508 mm x 25 mm). Should be inspected and replaced when dirty. Ordinarily replacement is required twice per heating season and, perhaps, a third time if continuous blower operation is used. NOTE: Each element has an automatic reset thermal cut-out which is set to open at 160°F (71°C).

  • Page 14: Warranty

    12. W ARRANTY SIXTY-MONTH LIMITED WARRANTY FOR NORTRON PRODUCTS Broan-NuTone Canada (Broan-NuTone) warrants to the original consumer purchaser of Notron products that such products will be free from defects in materials or workmanship for a period of sixty (60) months from the date of original purchase. THERE ARE NO OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

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