Drolet DF02003, Installation And Operating Instructions Manual

Page: 40 / 92

7.5 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. / Pa
(IN)
Heat
Commander
DD-10 1/3 1 875 55 55 000 0,2 / 50 20" x 15" x 1"
Volts Max Amps Hertz
120 5 60
* These values may vary depending on installation, fuel, static pressure and use.
7.6 Draft Calibration
The draft: 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.
o
A barometric draft control is not required.
- Excessive : -0.08" W.C. (20 Pa) : WARNING
This leads to premature wear of the furnace, a situation that is not covered by warranty.
o
A draft greater than -0.08" W.C. (20 Pa) leads to uncontrollable fire even if the air
control is in closed position.
o
The self-regulating furnace control system reduces the risk of excessive draft. If
necessary, a barometric control must be installed to control excessive draft. It
must be adjusted to limit the maximum draft to -0.06 in W.C. (15 Pa).