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-   -   Lennox HC16 power usage (and RS232 control) (http://www.diychatroom.com/f17/lennox-hc16-power-usage-rs232-control-86062/)

SFX Group 11-07-2010 05:49 PM

Hi

I like the looks of the HC16 (UV air filter) unit and notice it burns 150w of power ( for the UV lamps) so with this in mind can some who has installed this tell me is this powered from the furnace direct meaning when the fan isn't running neither is this UV lamp?

Last, is there a module interface to allow me connection and control via RS232 serial link ? (I need to check control protocols on this yet)

yuri 11-07-2010 06:05 PM

HC16 is a filter box. PCO is a complete filter with UV lights, filter and catalyst. They also have 110 volt UV lights which can be installed standalone. We always power them to be on when the fan only is running thru an EAC terminal on the board. Not sure what you are trying to control and which furnace do you have in mind.

moopey 11-07-2010 06:27 PM

yuri is right. the HC16 is a media filter only with no uv lamps, no power is needed.

i believe your thinking of the lennox pure air purification system which has a media filter and UV lights.

i had a lennox furnace installed last november with just a regular filter. Lately I've been contemplating adding a pure air but ai'm not sure it's worth it or if it's simply over kill for a home. I think I may do the HC16 box and filter.

Yuri do you have any experience with either? do you think the pure air is worth it?

yuri 11-07-2010 06:36 PM

I have LOTS of experience with Lennox products as I sell them. You need adequate ductwork and a strong fan to use any MERV 16 filter not just the Lennox one. Most of the units we install them with have ECM motors and can produce .8"WC rather than the basic .5" of a PSC motor. If you have large ducts you can get away with a PSC motor, if not it is risky. PCOs are INCREDIBLY good and effective for people with ANY types of allergies and breathing problems. I have customers with severe chemical sensitivity and other problems who absolutely love it. Saves $$ on meds. They do cost over $300 a yr for a maintenance kit (bulbs, filter and catalyst) but for some people it cuts down on inhalers and meds and gives them a much better quality of life which no money can buy.

SFX Group 11-07-2010 06:38 PM

Quote:

Originally Posted by yuri
HC16 is a filter box. PCO is a complete filter with UV lights, filter and catalyst.

My bad with the HC16 code, it's the whole UV unit I am looking at (PCO as you pointed out). The fact it can be controlled by the furnace to only come on when the main fan is running is good and what I need,

RS232 control would need access to:

Fan on - low
Fan on - full (for two speed unit like the G51/61)
Fan off
Aircon on/off
Heat on/off

It may be that it has to be "aircon on / fan = low"

I've been looking for a serial to 2 speed stat adapter so the furnace thinks it's just a stat talking to it

However if another manufacture or Lennox make an interface I would be interested to see it :)

Thanks for the help so far

yuri 11-07-2010 07:32 PM

Don't have that ability in the Lennox line as there is no great demand for it and it would be VERY expensive to do. Anytime you add peripheral devices you can cause further problems like a runaway furnace (sticks on) etc and I would stay away from that idea. They are adding communication abilities for alarm co monitoring to the high end SLP units in the future but no remote control abilities. There are some high end Signature tstats with lots of programming abilities available for techies.
http://tech.lennoxintl.com/PDFs/ehb_icomfort_1010.pdf
http://tech.lennoxintl.com/PDFs/ehb_..._7day_0906.pdf

We sell lots of $12,000 and up packages with furnace/ac and pcos and all those nice toys. Good if you have the dollaros $$.

SFX Group 11-07-2010 08:12 PM

Thanks for the input.

From what i can see the iComfort wont work with the G51/G61 series (correct?)

I'll go down the RS232 adapter route, being a network specialist i get paid to make sure this sort of thing works (2 different hardware types talking to each other), if anyone is interested i can update once its completed..

yuri 11-07-2010 08:21 PM

IComfort is compatible with the SLP unit which is 98.2% efficient and incredible. We are talking the Lexus series though. AC would be a XC17 SEER to be compatible.

SFX Group 11-07-2010 10:30 PM

OUt of interest, which AirCon units will work with the G51/61 series?

yuri 11-08-2010 06:26 AM

I recommend the XC 13 or XC14. All units work but some are built a LOT quieter and last longer. You get what you pay for in terms of quality.

moopey 11-08-2010 03:01 PM

Quote:

Originally Posted by yuri (Post 530608)
I recommend the XC 13 or XC14. All units work but some are built a LOT quieter and last longer. You get what you pay for in terms of quality.

I have the 14ACX 3 ton condenser paired with my G51 furnace. It's less than 1 year old so I can't comment on how long they last, but I can say it's pretty quiet. I was bit worried after ordering it when I found out that the Elite series had a lower db rating. It's installed right outside my bedroom and my bed is against the outside wall. I never hear it kick on. The only windows in the room on the another wall, so the unit isn't near any windows.

I'm very happy with my choice to go Lennox. My electric bills all summer were only $20-$30 more a month with the AC, and my gas bills all winter are very reasonable.

SFX Group 11-13-2010 08:00 PM

Quote:

Originally Posted by moopey (Post 530373)
i believe your thinking of the lennox pure air purification system which has a media filter and UV lights.

Hi, ive been looking at the G51 / G61 as it was confirmed here there both identically the same size unit physucally, i assume they would use the PCO 16-28 box as this seems to physically fit the shape (looking at the PCO 14-23 looks physclaly to small or is this the unit that would be needed?

Depending on which does anyone have any physical dimensions for this? also which return air boot will fit (as need to design the layout of the return air feed).

SFX Group 11-13-2010 08:01 PM

Quote:

Originally Posted by yuri (Post 530608)
I recommend the XC 13 or XC14. All units work but some are built a LOT quieter and last longer. You get what you pay for in terms of quality.

Has anyone have access to the same install details for this for the sizing of the internal cooler and external fan unit? (again for design layout to make sure it will fit physically in the basement location).

yuri 11-14-2010 10:46 AM

Post some pics of your existing furnace from the front and side and measure from the floor to the joists for me/us. There are other issues you don't know about. You need a 16x28 PCO. Do you plan to run your furnace fan all the time for circulation and to make the best use of the PCO? If so you may want the G61V with energy saving ECM motor. The AC coil sits inside the furnace plenum. Your contractor will do the ductwork sizing for you, my return duct is 10x24 and that is the minimum size I would use.

SFX Group 11-14-2010 09:58 PM

Hi

The existing furnace is being replaced, the new one is not going in the same location, the new location has not been designed as yet (still all in the CAD software), the only thing i can do at the moment is post pre-production CAD images with possible dimensions pasted on the page if that helps?

However floor to lowest beam is 69 inches (this maybe moved to 76.5 inches, unsure at this point)

Fan will only be on when heat or cooling is called for, so it will not be run continually


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