Question about Ruud Central System Air Conditioner
I would like to increase the air flow on the second floor of this two story house as there is only a trickle of air coming through the vents. The temperature is a good 4°C to 5°C cooler in the upstairs rooms than on the ground floor level (this is in Mid January).
I have checked the round disc plate inside the ducting on all the vents and they are all fully open. I have checked the loft insulation and that appears more than adequate. I just don't think that the air flow coming from the furnace is enough to reach the upper level of the house.
I am a new owner of this 30 year old house and confused about the performance of the furnace which is a RUUD 90 PLUS ACHIEVER, it appears to be about 10 years old.
If you feel like increasing your blower motor speed you can do this. Go to the air handler take the cover off to expose the blower motor. You will see a circuit board that has the blower motor wires going to it. Using your flash light look at the board and locate the terminals that read Cool Heat Park ... Now the Cool terminal should have black colored wire going to that one. Now locate the Heat terminal if it has red going to it and maybe blue sitting on the park terminal then swap the two around, blue is like med speed on the blower. Where Red is low speed. This will increase the blower about 50 rpms. You can even read your blower motor and get the speeds more detailed. You have a big house your unit is I bet a 4 ton A/C and 125,000 btu furnace. Probably has 1600 rpm motor. This is one solution. You have a up flow model and when you open the furnace cabinet up you will be able to see the specs. on the furnace. Let me know how that goes ken here in Kansas
Posted on Jan 13, 2009
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Posted on Jan 02, 2017
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