Stelpro SEFECM Series, Installation Manual, Page: 7 / 14

7
INSSEFECMI0513
Ventilation continue / Continuous ventilation Chauffage continu / Continuous Heat Demande de chauffage / Heating demand
Haute vitesse
High speed
Basse vitesse
Low speed
2,5kW
5kW
Puissance
Power
50%
100%
COM1
Electronic
control board
Auxiliary connections
to electronic control board
Electric Furnace
NO1 NC1 NO2 NC2 COM2
R C
Y
G
W1 W2
THERMOSTAT connections
to electronic control board
O/B
120Vac
Auxiliary device connections
with internal 24V,
on contacts #1 and #2
24 Vac
or
12 VDC
Control Relay supplied by other
Terminal R: 1A maximum
Contact #1 or #2:
2A, 24 VAC maximum
600mA, 12 VDC maximum
1 Control relay
24V Coil
1 Control relay
24V Coil
Auxiliary device connections
with external 24V,
on contacts #1 and #2
ConTroL PAneL
1.
Low sPeeD ConTinuous VenTiLATion
button: provides the
selection of the low speed continuous ventilation mode.
2. Low sPeeD ConTinuous VenTiLATion pilot light: indicates
that the low speed continuous ventilation mode is activated.
3. high sPeeD ConTinuous VenTiLATion button: provides the
selection of the high speed continuous ventilation mode.
4. high sPeeD ConTinuous VenTiLATion pilot light: indicates
that the high speed continuous ventilation mode is activated.
5.
2.5 kw ConTinuous heATing
button: provides the selection of
the 2.5 kW continuous heating mode.
6. 2.5 kw ConTinuous heATing pilot light: indicates that the
2.5 kW continuous heating mode is activated. This mode
is pending if the pilot light is blinking (see CONTINUOUS
HEATING section on following page).
7.
5 kw ConTinuous heATing
button: provides the selection of
the 5 kW continuous heating mode.
8. 5 kw ConTinuous heATing pilot light: indicates that the 5 kW
continuous heating mode is activated. This mode is pending if the
pilot light is blinking (see CONTINuOuS HEATING
section on following page).
9.
ThermosTAT
pilot light: indicates that the furnace is receiving a
heating demand from the thermostat.
10. 50% or 100% heATing CAPACiTY buttons: allow to choose the
heating capacity of the furnace in case of a heating demand from
the thermostat. Two possible capacities: 50% or 100%.
11. 50% pilot light: indicates that the selected heating capacity is 50%.
12. 100% pilot light: indicates that the selected heating capacity is 100%.
LÉgenD
A humidifier and an electronic filter can be
controlled directly from the furnace. There
is a terminal block for this purpose on the
control card. The terminal block is equipped
with six terminals connected to two DPDT
that allow to switch the command of the
auxiliary devices when the blower of the
furnace is in operation.
electrical connection of an electronic filter and a humidifier
* R terminal : 600mA maximum
TYPICAL FuRNACE TO AuxILIARY DEVICE CONNECTIONS
heATing DemAnD wiThouT PLenum
TemPerATure sensor
one-sTAge ThermosTAT
1. The thermostat closes the R-W1 circuit, which activates the first
stage of the heating sequence. The blower starts-up at low speed and
half of the furnace elements are activated one by one.
2. If the heating capacity selector is set at 50%, the sequence is ended
and only half of the furnace capacity is used. However, if the selector
is set at 100%, the sequence continue as follows:
3. The blower switches to heating speed and the remaining furnace
elements are activated one by one.
operation