background image

7

INSSFECMI0914

heATing DemAnD

one-sTAge ThermosTAT
w1-

 The thermostat closes the R-W1 circuit, which activates 100% 

of the heating sequence. The blower starts up at medium speed and 

the furnace elements are activated one by one to reach the adjustable 

temperature limit set on the potentiometer of the furnace control card. 
If there is still a W1 heating demand after 30 minutes, the heating 

sequence continues as per the W2 sequence.

or w2- 

If there is still a W1 heating demand after 30 minutes, the 

sequence continues as follows: the blower switches to the medium 

speed and all the furnace elements are activated one by one (100% 

heating). The plenum temperature is still limited by the potentiometer 

of the control card.

Two-sTAge ThermosTAT

The control card of the furnace auto-detects the two stages of the 

thermostat. 

w1- 

The thermostat closes the R-W1 circuit, which activates the first 

stage of the heating sequence (±50% heating). The blower starts up 

at low speed and the furnace elements are activated one by one to 

reach the adjustable temperature limit set by the potentiometer on the 

furnace control card. 
If there is still a W1 heating demand after 30 minutes, the heating 

sequence continues as per the W2 sequence.

And/or w2- 

If the thermostat closes the R-W2 circuit, the sequence 

continues as follows: the blower switches to the medium speed and all 

the furnace elements are activated one by one (100% heating). The 

plenum temperature is still limited by the potentiometer of the control 

card.

HEATINg DEMAND, 

Standard

 MoDE

 (WITH T-STAT INTELLIgENCE)

100% Heat,  

Med speed

Adjust. limit

50% Heat, 

Low speed

Adjust. limit

1 stage W1

2 stages W1

W2

W1>30 min

Activation of relays, 3-sec. interval

Modes

eCo

standard

HigH/Haute

tHerMostat

MaX

Min

low/Basse

ConTroL PAneL

1

4

7

2

5

8

3

6

9 10

sFecm

serie

s

série

operation

1.  

ConTinuous VenTiLATion

 button: Allows the selection of the 

high or low speed continuous ventilation mode.

2.  

Low sPeeD ConTinuous VenTiLATion 

green LED: Indicates 

that the low speed continuous ventilation mode is activated.

3.  

high sPeeD ConTinuous VenTiLATion 

green LED: Indicates 

that the high speed continuous ventilation mode is activated.

4.  

moDe 

button: Allows the selection of the Standard or Eco mode.

5.   

sTAnDArD moDe

 green LED: Indicates Standard mode is 

activated.

6. 

eCo moDe 

green LED: Indicates that the Eco mode is activated. 

7.   

ConTinuous heATing 

button:  Allows  the  selection  of  the 

maximum or minimum continuous heating mode.

8.  

min ConTinuous heATing 

green LED: Indicates that the 

minimum of heating capacity is activated.

9.  

mAX ConTinuous heATing 

green LED: Indicates that the 

maximum of continuous heating mode is activated.

10.  

ThermosTAT 

yellow LED: Indicates that the furnace is receiving a 

heating demand from the thermostat.

LegenD

Summary of Contents for SFECM series

Page 1: ...urther information or to consult this guide online please visit our website at www stelpro com This unit complies with the CSA and UL standards This unit is approved according to the Canadian and Amer...

Page 2: ...burns do not let bare skin touch hot surfaces Let the unit cool down for a few minutes before handling it it stays warm for some time after shut down Never block air vents This obstruction could lead...

Page 3: ...ocated as centrally as possible in the area to heat in order to optimize air dissipation in all the rooms Clearance This furnace is approved for zero inch clearance Meaning that you can install it dir...

Page 4: ...with a plenum temperature sensor You can select the plenum temperature set point with a potentiometer installed on the control card The default factory set point is 45 C 113 F You can select the set p...

Page 5: ...C power source For 240V power supply either copper or aluminum wires can be used except for 27 5 and 30kW models where only copper wire can be used see the power connection illustration below If you w...

Page 6: ...close or in front of an air outlet close to concealed ducts or a chimney and in a location with poor air flow e g behind a door or with frequent air draft conditions e g head of stairs Seal the wall o...

Page 7: ...e sequence continues as follows the blower switches to the medium speed and all the furnace elements are activated one by one 100 heating The plenum temperature is still limited by the potentiometer o...

Page 8: ...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 se...

Page 9: ...indicate which installation has been programmed The heat pump can operate all year and allows the user to make energy savings due to the plenum temperature regulation function exclusive to Stelpro Thi...

Page 10: ...ating power will ramp up to 50 heating for five 5 minutes If a heating demand lasts 30 minutes a second sequence of five 5 minutes activates a ramp up of the elements to 100 heating at medium speed He...

Page 11: ...700 350 850 600 2 366 766 530 1030 742 3 433 833 710 1210 884 4 500 900 900 1400 1025 5 566 966 1080 1450 1167 6 633 1033 1260 1450 1309 7 700 1100 1450 1450 1450 RECOMMAND RECOMMENDED TABLEAU D AJUST...

Page 12: ...1966 7 1200 2000 2200 2200 2200 RECOMMAND RECOMMENDED When the furnace has run at full capacity for 10 minutes block the supply and return air openings and measure the supply air temperature at a poi...

Page 13: ...specify the model of your furnace as well as its serial number Air filter Excessive dust or dirt accumulation can block the airflow forcing the unit to work harder to maintain the desired temperature...

Page 14: ...condensator Faulty blower control switch Faulty transformator See above control card autodiagnostic The unit runs continuously Defective thermostat wrong thermostat setting or positionning Heat losses...

Page 15: ...Y SFE 5KW 240V 1PH 11 LONG 1 ELF SFE0521 2 ELEMENT ASSEMBLY SFE 5KW 240V 1PH 14 LONG 2 BLO 004 SQUIRREL CAGE BLOWER 10 8 2 BLO 005 SQUIRREL CAGE BLOWER 12 11 3 MO 034 ECM MOTOR 1 2HP 3 MO 035 ECM MOTO...

Page 16: ...r property or personal injury damages penalties special or punitive damages damages for lost profits loss of use of equipment cost of capital cost of substitute products facilities or services shutdow...

Reviews: