Modified Roof Air

34kw · January 28, 2015, 05:26:57 AM

Tom C, I think I remember you saying that you modified a roof air to work in the basement. Would you mind us telling what you did and how you did it?
If this has been covered I apologize but I couldn't find it. Thanks

TomC · January 28, 2015, 07:44:03 AM

I used the Penguin 15,000btu roof top. Made a wood platform for it. On the air intake, had an 8" plenum made. On the cold air outlet, attached a 6" diameter flange. Took the top hood off. Had a 6" plenum made for the hot condenser air and covered the condenser coils with plywood held with a single 3/8" stud through drilled to the chassis. Attached a 3/4" flange on the drains and plumbed for draining condensation. Had to pull the wiring out from the inside of the evaporator to have it available on the top of the machine.
It took a bit of designing and about 8 days of construction to do. The reason-the roof A/C is about $800. The basement air is close to $2,000 with the same equipment.

TomC · January 28, 2015, 07:46:44 AM

More picts

TomC · January 28, 2015, 07:48:27 AM

Picts

34kw · January 28, 2015, 10:44:05 AM

Thanks TomC, very innovative thinking - I might go that route myself when I get to that point.

sledhead · January 28, 2015, 04:12:55 PM

Tom how did you vent the intake air to cool it and the hot air out of the basement ?

thanks dave

TomC · January 28, 2015, 11:29:11 PM

Each A/C is mounted in the basement next to a vented door to draw in cool air. Then the hot air from the condenser is vented through the floor with a 6" duct and a 90 degree (facing back) vent. Remember on my truck, the floor of the box is 40" off the ground. It's amazing how quite the units are compared to when they are roof mounted. Good Luck, TomC