8
INSSFECMI0914
ConTinuous VenTiLATion
Two ventilation speeds can be selected on the furnace control panel: LOW SPEED CONTINUOUS VENTILATION or HIgH SPEED CONTINUOUS
VENTILATION. The user can select the ventilation speed by pressing the button located on the left side of the control panel (item #1 in the control
panel picture).
The SFECM series allows to adjust the continuous ventilation airflows independently from the ventilation airflow in heating mode. Note that it also
allows airflows as low as 300 cfm in continuous ventilation. This reduces ventilation noises considerably.
ConTinuous heATing
The continuous heating option allows one or two heating elements to operate continuously. The user can select the minimum (one element) or
maximum (two elements) continuous heating by pressing the button located on the right side of the control panel (item #7 in the control panel
picture). Please note that for model #1021, the minimum and maximum continuous heating are the same (one element). The continuous heating
mode is useful from the beginning to the end of the heating season since it reduces temperature variations into the house. If the minimum or
maximum continuous heating option is activated by the user, the furnace will deactivate it when the heating season ends (more than two hours
without any heating demand). Moreover, it will reactivate it when a new heating season begins. Note that the pilot light indicating the heating
option will blink if the furnace deactivates this option because the heating season is over. This indicates that the continuous heating will be
activated again at the start of the next heating season.
Air ConDiTioning
The furnace supplies the necessary 24V power for the thermostat relay (R-Y terminals) to control the air-conditioner compressor relay. When the
R-Y terminals are activated, the blower starts-up at high speed. See the connection diagram.
heAT PumP
If a heat pump is installed in your central heating system, the Stelpro electric furnace offers the installer two types of installations: type ”A” or type
”B”. Installation ”A” must be selected when the heat pump is installed
A
fter the furnace (air supply), and installation ”B” must be selected when
the heat pump is installed
B
efore the furnace (air return), as shown in the next picture. once again, when the R-Y terminals are activated, the
blower starts-up at high speed.
TYPE A
TYPE B
MIN. 12"
TYPE "A"
AIR RETURN
AIR SUPPLY
HEAT PUMP
HEAT PUMP
AIR RETURN
TYPE "B"
AIR SUPPLY
MIN. 12"
TYPE "A"
AIR RETURN
AIR SUPPLY
HEAT PUMP
HEAT PUMP
AIR RETURN
TYPE "B"
AIR SUPPLY
