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| I have an RARL (16 SEER) a/c with an RCQD coil and RGFD mod furnace. I chose this coil as I wanted maximum dehumidification as opposed to highest SEER (actual SEER is 14.5).
During installation, the contractor enabled 'HIGH SEER' on the board. I suspect that this increases blower speed (to gain higher SEER) above that set on the board, and thus lowers latent capacity. Can a PRO verify that my suspicion is correct? Or, exactly what does this setting do? Thanks. V |
Follow-Up Postings:
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| selecting higher seer sw1#6 on position increases air flow for low stage(1 stage) . furn off and you will run 50% 1st stage then 100% 2nd stage |
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- Posted by veesubotee (My Page) on Wed, May 9, 12 at 10:11
| Thanks Coolmen, I suspected (increase) as much. If I interpret your comment correctly, with switch on, airflow in stage 1 > 400 CFM/ton. If so, would using a humidistat for dehu on demand (I have the new board which does dehu and 2 stage)if I decided to, in conjunction with turning #6 off risk freezing the coil? Thanks for your input. V |
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| Since having 2 stage cooling I would not worry about the dehum. running low stage should do a fine job at hum removal. I would leave # 6 off and get 400 per ton cooling 15% less low stage. mount hum stat digital in house and see how it performs. lossing 15% low stage plus an other 15% on dip switch setting # 6 another 15% may freeze coil. page 58 just |
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- Posted by veesubotee (My Page) on Thu, May 10, 12 at 10:57
| Thanks. As far as the stat is concerned, I'm tied into the mod stat (411) which doesn't have dehu function. Will set switch #6 to off. Airflow is currently set at 400 CFM/ton. Will keep it at that setting (for now). V |
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