Product Manual

HeatPack Furnace Installation and Operation Manual
34
9.3 Blower technical Data
The blower speed must conform to the recommendations of the Warm Air Heating and Air
Conditioning National Association and should respect the static pressure ranges in the
warm air plenum of the furnace.
MODEL
(DIRECT DRIVE)
FLOW
TEMP
VAR.
BTU/ H
STATIC
PRESSURE
OPTIONAL
FILTER
VENT
MOT.
VIT.
(CFM)
(°F)
(WOOD)
INCH OF
W.C.
(IN)
HEATPACK
DCT-916-800-5
1/4
4
1800
115
125,000
0,2
20" x 15" x 1"
Blower speed
Static pressure (in. WC) / (Pa)
Flow (CFM)
1
0.2 / 50
900
2
0.2 / 50
1000
3
0.2 / 50
1200
4
0.2 / 50
1400
Volts
Amps
Max Amps
Hertz
Watts
120
2.8
3.4
60
336
9.4 Draw Calibration
The draw: The measurement is taken in the exhaust pipe 18" (457 mm) above the
furnace's flue collar with a tube and a pressure gauge (manometer).
Poor: -0.03" W.C. (7.5 Pa) and under: ignition problems, risk of smoke spillage, low
performance of heat exchangers.
Ideal: from -0.04" to -0.06" W.C. (10 to 15 Pa): to obtain the optimum performance of the
furnace. A barometric draft control is not required.
Excessive: -0.08" W.C. (20 Pa)
WARNING
EXCESSIVE DRAFT LEADS TO PREMATURE WEAR OF THE FURNACE, A
SITUATION THAT IS NOT COVERED BY WARRANTY.
A DRAW GREATER THAN -0.08" W.C. (20 PA) LEADS TO UNCONTROLLABLE
FIRE EVEN IF THE AIR CONTROL IS IN CLOSED POSITION.
TO PREVENT EXCESSIVE DRAFT, A BAROMETRIC DAMPER MUST BE
INSTALLED (SEE ILLUSTRATION BELOW) TO CONTROL EXCESSIVE DRAFT. IT
MUST BE ADJUSTED TO THE MAXIMUM DRAFT OF 0.06" W.C. (15 PA)
MEASURED AT THE OUTPUT OF THE FURNACE.