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www.stelpro.com
Installation guide
''SEFL'' series
Electric furnace
This section must be read carefully by the installer.
The installer must also read the user's guide since it contains other
important information.
(Replacement component list included)
This unit is approved according
to the Canadian and American
manufacturing standards.
This unit complies with
the CSA standards
For further information or to consult this guide on line, please visit our Web site.
INS_SEFL-I 0610
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Table of Contents
Related Manuals for Stelpro SEFL1521
Summary of Contents for Stelpro SEFL1521
- Page 1 Installation guide ‘‘SEFL’’ series Electric furnace This section must be read carefully by the installer. The installer must also read the user’s guide since it contains other important information. (Replacement component list included) This unit is approved according to the Canadian and American manufacturing standards.
- Page 2 WARNING WARNING WARNING WARNING Before installing and operating this product, the user and/or installer must read, understand and follow these instructions and keep them handy for future reference. If these instructions are not followed, the warranty will be considered null and void and the manufacturer deems no further responsibility for this product.
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Page 3: Specifications
SPECIFICATIONS ELECTRIC FURNACE Type volts amps length (in.) width (in.) depth (in.) SEFL1521 240/208 15/11.2 65/56 36 9/16 20 1/8 21 3/16 SEFL1821 240/208 18/13.5 78/67 36 9/16 20 1/8 21 3/16 SEFL2021 240/208 20/15 86/75 36 9/16 20 1/8 21 3/16 N.B. -
Page 4: Operating Sequence
OPERATING SEQUENCE Heating mode 1. The thermostat closes the R-W1 circuit, which activates the sequencers and the elements of the first stage one by one. The blower starts-up at the first selected speed (the lowest speed) as soon as the first element is activated. 2. -
Page 5: Preventive Maintenance
Preventive maintenance Do not try to repair your furnace yourself. Call a qualified technician. However, before calling a technician, check the following points. 1) Make sure fuses or circuit breakers are activated. 3) Adjust the temperature set point of the thermostat above the ambient temperature. If heating does not start, cut off the power supply and call a technician. N.B. - Page 6 REPLACEMENT COMPONENT LIST #DIAGRAM #PART DESCRIPTION ELF-SEF0521 ELEMENT ASSEMBLY 5kW BLO-004 SQUIRREL CAGE & BLOWER 10-8 FOR 15 TO 20 KW. MO-036-1 MOTOR 1/3HP, 208/240V, 1075 RPM, 4 AD. SPEEDS INCLUDED PROT-010 THERMAL PROTECTION L-160-40 - 15 TO 20 kW SWI-004 SPDT SWITCH WITHOUT MARKINGS 16 A, 250 V, 3/4 HP, 250 V, T85 TRF200050D...
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Page 7: Limited Warranty
Stelpro reserves the right to examine or to ask one of its representatives to examine the product itself or any part of it before honoring the warranty. Stelpro reserves the right to replace the entire unit, refund its purchase price or repair a defective part. - Page 8 APPENDIX 1 Speeds can be changed with the jumpers on the motor terminal block. Refer to the images below. DEFAULT CONFIGURATION 15 kW 18 kW - 20 kW You can modify the angle of the The chosen angle is where first and second damper but you will feel it with your finger.
- Page 9 Electrical connection of the furnace POWER CABLE 3 CONDUCTORS 4 CONDUC FOR A 120 V ELECT ELECTRICAL CONNECTION OF THE FURNACE To operate the furnace at 208v (instead of 240v) change the transformer primary connection accordingly (see transformer nameplate) CFM/speed table 15 to 20 kW (double position 1/3 hp) damper 1 damper 2 damper 3...
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Page 10: Optional Accessories
Location You must install the furnace on a dry and solid base, in an area free of flammable liquids or vapors and combustible materials. You must indicate to the fur- nace’s user the location of the switches and disconnects. He must be able to quickly identify them in case of an emergency. Moreover, the furnace should be located as centrally as possible in the area to heat in order to optimize air dissipation in all the rooms.
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