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Teledyne Laars A2111900 Pennant Blower, Previous Part #A2108900 The Laars Pennant combustion air blowers bring the combustion air for
the Pennant heating, water and pool water heating systems from the upper
chamber to the lower chamber.
Used on the following models:
PNCH0500, PNCH500, PNCH0750, PNCH750, PNCH1000, PNCH1250, PNCH1500, PNCH1750,
PNCH2000, PNCV0500, PNCV500, PNCV0750, PNCV750, PNCV1000, PNCV1250, PNCV1500,
PNCV1750, PNCV2000, PNCP0500, PNCP500, PNCP0750, PNCP750, PNCP1000, PNCP1250,
PNCP1500, PNCP1750, PNCP2000.
115V - 60Hz, 3.75Amp, 430W, 2000min -1, (P2) 25uF 240VDB 115V - 60Hz, 3.8Amp, 455W, 2000min -1, 25uF 240VDB Thermally Protected Ins. CI.F Made in Germany
Laars Pennant operating with an improper air/fuel
ratio are very inefficient and consequently, have very
high gas consumption. Because efficiency is high
when the CO2 is high (or O2 is low), appliances
operating with low CO2 or high O2 (especially LP
appliances) consume more gas. Adjust the CO2 or O2
for optimum efficiency. If no combustion analyzing
equipment (CO2 or O2) is available then a proper
adjustment of the air/fuel ratio (CO2 or O2) cannot be
accomplished. However, by briefly sniffing the flue
gases it is possible to determine if the CO2 or O2 is
within the proper range. No significant flue gas odor
should be detected when combustion is proper. A
strong piercing smell indicates poor combustion and
generally a lean mixture - low CO2 or high O2 . The
CO2 should be 8% at high fire. To check the CO2, first
verify that the supply gas pressure is within 5" to 13"
w.c. (1.2 to 3.2 kPa) With the Pennant running with all
stages firing, set the air box pressure to 1.5" w.c. (0.37
kPa) (as a starting point), by adjusting the air
shutter(s) at the bottom of the fan(s). Check the CO2,
and adjust the air shutters if further adjustment to the
CO2 is needed. Models 1250 to 2000 have two
blowers and two air chambers (boxes). The pressure of
each air box must be equal when the final adjustment
is made.
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