Table of Contents
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Summary of Contents for Nortron ECM Serirs
- Page 1 NSTALLATION AND ANUAL ECM SERIES ELECTRIC FURNACE : 21ECM10, 21ECM15, 21ECM18, 21ECM20 21ECM23 ODELS IMPORTANT: READ AND SAVE THESE INSTRUCTIONS. NORTRON; Sherbrooke, Quebec www.dettson.ca 1-800-567-2733 2019-10-10 X40253B...
- Page 2 WARNING • Never tamper with the unit or its controls. User MUST contact a • Do not block the combustion air openings in the furnace. Any specialized contractor when a failure occurs. DO NOT ATTEMPT blockage will result in improper overheat situation and may result to repair.
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Page 3: Table Of Contents
Table of Content 1 Dimensions ............General Requirements and Specifications . -
Page 4: General Requirements And Specifications
General Requirements and Specifications CAUTION This unit must be installed in a dry place, in a non-corrosive, well-ventilated environment, without excessive dust. The ambient temperatue must be over 10°C and under 27°C. If the ambient temperatue is 10°C or less, the plenum must be insulated on 10 ft linear minimum length. -
Page 5: Operating Options
Operating Options The furnace is shipped from the factory in a “Standard Heating Mode” (all switches are in the Down position). When the thermostat calls for heat, the automatic controls will be activated and the furnace turned “ON”. The blower will run at low speed or higher speed (as selected by SPEED SELECTOR switch). As the furnace heats up, it automatically switches to the pre-programmed heating speed when additional elements are activated by the electronic control, if it was initially set to run at low speed. -
Page 6: Installation Notes
Installation Notes Cold Air Return The duct can be attached to either side, rear or the bottom of the furnace. For side return there are four 1½” (38 mm) knockouts which can be removed and used as an outline for cutting a 18” x 18” (457 mm x 457 mm) return air opening in the furnace left or right side. -
Page 7: Use In Mobile Homes
Use in Mobile Homes SHALLOW DUCT AREA REQUIREMENTS Models from 10 kW to 20 kW are certified for “L”-shape and “T”- shape shallow duct installation with model FSB-1 sub-base in EPTH IDTH downflow applications when the supply air ducts pass through 4"... -
Page 8: Electronic Air Cleaners And/Or Powered Furnace Humidifiers
Electronic Air Cleaners and/or Powered Furnace Humidifiers These units operate at 120 V. Your 240 V furnace is designed so that Model FK120 adaptor kit can be mounted inside the furnace to supply the required 120 V. Instructions for mounting and wiring are included with the kit. Interlock Conection When the electric furnace is used in combination with another device (as for example, a wood burning furnace), it is... -
Page 9: Wiring Diagrams
Wiring Diagrams 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. -
Page 10: Service Parts
Service Parts In order to ensure your unit remains in good working condition, you must use Nortron genuine replacement parts only. The Nortron genuine replacement parts are specially designed for each unit and are manufactured to comply with all the applicable certification standards and maintain a high standard of safety. Any third party replacement part used may cause serious damage and drastically reduce the performance level of your unit, which will result in premature failing. -
Page 11: Maintenance
Maintenance 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: The elements have an automatic reset thermal cut-out which is set to open at 100°F (38°C). -
Page 12: Warranty
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. During this sixty-month period, Nortron will, at its option, repair or replace without charge, any product or part which is found to be defective under normal use and service. This product or part should be shipped prepaid by the customer to the company factory or the nearest authorized service center.
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