||Thread Tools||Search this Thread||Display Modes|
|05-05-2010, 05:44 PM||#1|
Join Date: May 2010
Evaporator Coil Sizing
I am trying to save some money by purchasing as much of my HVAC equipment myself. I have an HVAC certified contractor ready to install my new system but I am having difficulties matching up the ADP coil to the furnace.
I am purchasing the following system:
AHRI #: 3874101
Condenser - Rheem 14AJM49
Coil - ADP HE41660 Series (I need to finish the 18 digit model number)
Furnace - RGTM -07ERBGS (I will be using the Horizontal configuration)
You might be interested in why I am purchasing an ADP coil as opposed to the Rheem coil. If I want to qualify for the tax credit and get the Rheem coil, I am forced to purchase the 105k BTU furnace which is oversized for my needs. Whereas if i purchase the ADP coil, I am able to qualify for credit with the 75k BTU coil.
I have been looking at the spec sheets for both the RGTM furnace and the ADP coil but want to be certain that the cabinet dimensions i am selecting are correct. The links to both spec sheets are listed below.
This is what i have thus far on the model #: HE41660_ _ _ _ B29_ _ 93
I am assuming that the coil, like my furnace, would also be in the horizontal position, hence the multiposition selection.
The first blank deals with the Cabinet Depth (3 options), the next 3 blanks are for the cabinet width (5 options), while the last 2 blanks are for the Product Code (2 options: Right hand cased Multiposition or Left Hand cased Multiposition).
This is what I think it might be : HE41660D257B292093.
Next Issue. I would like to buy some of the major parts/accessories needed for the installation. I looked at the furnace specs and saw the required Plenum RXGR C21B. Do I need to purchase 1 or 2 of these plenums.
Can you think of anything else that i should purchase on my own instead of having the contractor pick up? It seems anything he purchases from his distributor is much more than what I can purchase for. I told him what i got the thermostat for, and it was $75 cheaper than what his actual cost for the same item was. He is actually asking where i am purchasing the items so he can begin using them instead.
My list of parts: Thermostat, Return air grids, Plenum, flex ducts
I have done the Manual J/Load Calculation on the house and have confirmed with Rheem that buying a 3rd party coil does not void my warranty on condenser/furnace.
I hope someone can help me.
Last edited by kandykane19; 05-05-2010 at 05:48 PM. Reason: Typo
|purchasing hvac parts|
|Thread Tools||Search this Thread|
|Thread||Thread Starter||Forum||Replies||Last Post|
|Plenum/Duct sizing||Manuel6||HVAC||8||03-28-2011 10:36 PM|
|Sizing a furnace - can't find one small enough||Jim W||HVAC||30||05-13-2009 10:38 PM|
|header sizing||atljamo||Building & Construction||3||08-12-2008 11:21 PM|
|DWV sizing for kitchen sink||KPH120||Plumbing||11||12-30-2007 10:40 PM|
|Improper A/C sizing - Responsibility to Fix?||Dragon||HVAC||14||07-05-2007 03:35 PM|