Bard WG3S2-A Installation Instructions Manual

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Bard WG3S2-A Installation Instructions Manual Manual pdf 38 page image

Manual 2100-587BPage 38 of 5932. INDOOR BLOWER OPERATIONThe indoor blower motor is a constant CFM variablespeed direct drive motor. The motor is programmed torespond to individual thermostatic inputs that willdetermine the speed/airflow at which the motoroperates. The motor software maintains the ratedairflow across the range of allowable static whether thesystem is ducted or free blow. It will also maintain thetemperature rise across the gas heat exchanger at themid-point of the allowable rise range automatically.There are not adjustments that can be made in the fieldto adjust the airflows for any mode of operation.TABLE 9INDOOR BLOWER PERFORMANCE 11111LEDOM detaRPSExaMPSE2suounitnoCMFC3detaRegatSts1MFCgnilooC4detaRegatSdn2MFCgnilooCMFCgnitaeH 65UTB000,05tupnIUTB000,57tupnIUTB000,001tupnIUTB000,521tupnI2S3GW 51.0 05.0 008 008 0011 0201 0521 5631 01412S4GW 02.0 05.0 528 0011 0051 0201 0521 5631 01412S5GW 02.0 05.0 058 0031 0071 0201 0521 5631 0141FIGURE 17FURNACE CONTROL BOARD AND BLOWER CONTROL1 Motor will deliver consistent CFM through voltage supply range with no deterioration(197-253V for 230/208V models, 414-506V for 460V models).2 Continuous CFM is the total air being circulated during continuous (manual) fan mode.3 Will occur automatically with a call for “Y1” signal from thermostat.4 Will occur automatically with a call for “Y2” signal from thermostat.5 Will occur automatically with a call for “W” signal from thermostat.6 Constant CFM of Variable Speed Motor should maintain mid-rise temperature differential through range of allowable static.