ACSC101 and ACRD101

[BillP]

Dear Folks,

I couldn't find anywhere above mentioned units "Outdoor" units dimensions. I am confused whether these units have outdoor units like condensers etc or not? I am talking about direct expansion units.

Please help me out on this.

[BillP]

Hi Karbonphiber,

Superb reply man! Yes this helped a lot. Thanks.

[BillP]

Dear Karbonphiber,

I wanna ask one thing. Please tell me the the requirements of ACSC101 air duct which would be placed in a false ceiling. Actually If we have a 2 ft false ceiling then would we just need to place intake air duct and exhaust air duct into the ceiling? is it normal to place an exhaust air duct into the false ceiling? what do u think. please help me out.

[BillP]

Hello Warifir,  have you read Application Note 109? It provides many helpful answers to condenser applications for the ACSC.  I have a few comments regarding using a 2ft plenum / false ceiling.

Having a very large plenum is not substitute for proper ventilation and heat rejection. Heat rejected into the plenum still must get out of the facility and into the ambient environment. Otherwise it will simply accumulate in the plenum and cause the unit to shut down. While the actual size of the plenum is not critical, it is recommended that the plenum be at least 12” (300mm) deep to prevent restriction of the duct tubes outlets. However, I do want to caution you, there will be 850cfm coming out of the exhaust ducts and because the intake duct is less than a foot away, chances of recirculating air are great. The ACSC condenser is rated to use 95 F (35 C) air. Higher air temperatures will result in the unit’s maximum cooling capacity being reduced. This may impact your application depending on the load within the room.

Please let me know if you require more information.

[BillP · Accepted solution]

Dear Folks,

I couldn't find anywhere above mentioned units "Outdoor" units dimensions. I am confused whether these units have outdoor units like condensers etc or not? I am talking about direct expansion units.

Please help me out on this.