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Teledyne Laars A2111900 Pennant Blower, Previous Part #A2108900

Teledyne Laars MT2H 0500 MT2H 0750 MT2H 1000 MT2H 1250 MT2H 1500 MT2H 1750 MT2H 2000 MT2V 0500 A2111900 Pennant Blower, Previous Part #A2108900

Teledyne Laars
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Product Code: A2111900

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.

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. Mixing of the gas and air occurs in the burners. Models 500, 750 and 1000 each have one blower, and models 1250 to 2000 each have two blowers (one blower for stages 1 and 2, and one for stages 3 and 4). If a blower change is required, turn off the 120-volt power and gas supply to the unit. Remove the front panel. Disconnect the blower's wire harness. Remove the screws at the blower flange, and pull the blower out. Replace blower in reverse order, ensuring that all joints are made correctly. After
replacement, ensure that the unit operates properly, by following the set-up procedure in this manual.

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/fuelratio are very inefficient and consequently, have veryhigh gas consumption. Because efficiency is highwhen the CO2 is high (or O2 is low), appliancesoperating with low CO2 or high O2 (especially LPappliances) consume more gas. Adjust the CO2 or O2for optimum efficiency. If no combustion analyzingequipment (CO2 or O2) is available then a properadjustment of the air/fuel ratio (CO2 or O2) cannot beaccomplished. However, by briefly sniffing the fluegases it is possible to determine if the CO2 or O2 iswithin the proper range. No significant flue gas odorshould be detected when combustion is proper. Astrong piercing smell indicates poor combustion andgenerally a lean mixture - low CO2 or high O2 . TheCO2 should be 8% at high fire. To check the CO2, firstverify that the supply gas pressure is within 5" to 13"w.c. (1.2 to 3.2 kPa) With the Pennant running with allstages firing, set the air box pressure to 1.5" w.c. (0.37kPa) (as a starting point), by adjusting the airshutter(s) at the bottom of the fan(s). Check the CO2,and adjust the air shutters if further adjustment to theCO2 is needed. Models 1250 to 2000 have twoblowers and two air chambers (boxes). The pressure ofeach air box must be equal when the final adjustmentis made.

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