Ahu Condenser size?

[dannycool]

Hi Guys,

We have asked to quote for a condensing unit to match a DX coil within a AHU, but the only information we have at the moment are air volumes across the evaporator coil and room design temperatures.
So my question is, is it possible to size a condensing unit from that information alone, and is it something that can be done using coolpack?

Regards

Danny

[nevgee]

You can make some very good approximations using air volume and room temps. plot them on a psychrometric chart .
Additionally you can get the detail of the evap coil, tubes high ; rows deep; number of circuits, tube size, fins/inch. assume a suitable evap temp and gas then call a coil manufacturer and ask for an equiv duty.

Or reverse engineer the evap coil and use software to determine the duty

This site has a software that can be used.

http://www.spcoils.co.uk/

I haven't looked at the coolpack software for a long time so I can't remember if it will help or not.

[jteixiera]

can you provide the relevant information, application type ,refrigerant type room size? Your responce will only be as good as the information you provide.