Nortron 21B15M Installation And User Manual
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- Installation and operating instructions manual (9 pages) ,
- Installation and user manual (14 pages)
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Summary of Contents for Nortron 21B15M
- Page 1 NSTALLATION AND ANUAL B SERIES ELECTRIC FURNACE FB0004 : 21B10M, 21B15M, 21B18M, 21B20M, 21B25M, 21B27MS, 83B13, 83B24 83B27 ODELS IMPORTANT READ AND SAVE THESE INSTRUCTIONS NORTRON; Sherbrooke, Quebec www.dettson.ca 800-567-2733 30042523C...
- 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.
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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
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) 21B20M** 68304 MED-LOW... -
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, 21B27MS, 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: Wiring Diagrams
Sec: 24 V 60 Hz 40 VA BLUE ORANGE WHITE YELLOW For the use of a two-stage thermostat or an outdoor thermostat, connect between W1 and W2. For 21B15M model, make sure that the Season Select switch is set to “Mild” position. FE0061A - 8 -... - 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 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. 21B27MS Model 50 A Open: 93.3°C ARTP...
- 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. Open: 93.3°C ARTP 25 A MRTP 1...
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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).
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