How do I find tonnage for Lennox HP18-311U (or V)-1P ?

[Franklin Bowen]

We got two estimates for replacement on our heating/cooling system.
Unfortunately they disagree on tonnage of our current Lennox heat
pump, which is a HP18-311U (or V)-1P!

Can someone tell me the correct value? I looked on Lennox site and
around the web but can't find any documentation for this model
anywhere.

Thanks!

[rb]

"Franklin Bowen" <Frankl...@hotmail.com> wrote in message
news:9142752b.0207...@posting.google.com...

I think this would be a 2.5 ton unit (I was told an HS18-261 is a 2 ton, so
this is the next size up)

rb

[Iove doII]

2.5 tons

take the first 2 digits past the hyphen of the lennox number, & divide by 12
the result is an approximation in tons of cooling.

>Subject: How do I find tonnage for Lennox HP18-311U (or V)-1P ?
>From: Frankl...@hotmail.com (Franklin Bowen)
>Date: 7/1/2002 5:00 PM Pacific Daylight Time
>Message-id: <9142752b.0207...@posting.google.com>

[TURTLE]

"Iove doII" <iove...@aol.comnospam> wrote in message
news:20020701211013...@mb-ch.aol.com...

> 2.5 tons
>
> take the first 2 digits past the hyphen of the lennox number, & divide by
12
> the result is an approximation in tons of cooling.

This is Turtle.

I really never got complex on this but i always just said if it had a 31 in
like hp-311-1v . It was 31,000 btu's. Your way seem to go the same way.
Does your way of thinking match my way or can it very in some cases.

TURTLE

[Iove doII]

hell Turtle I think only Dave Lennox knows fer sure, and he ain't telling. Yer
right on as far as btu's matching the model number.
-261=2 ton, single phase
-311=2.5 ton single phase
-411=3 ton single phase
-461=3.5 ton single phase
-511=4 ton single phase
-651=5 ton single phase
change the last digit to a 3, now its 3 phase

just out of curosity, here's a cross reference list from totaline.com on
Copeland replacement compressors for Lennox products....the copeland
replacement for a HP18-311 is a CR28K6-PFV which is rated at 28,200btu
(five bux says its a major re-pipe as well) :-)

http://www.totaline.com/products/Literature/pdf/570-586.pdf

>Subject: Re: How do I find tonnage for Lennox HP18-311U (or V)-1P ?
>From: "TURTLE" tur...@worldnetla.net
>Date: 7/1/2002 6:48 PM Pacific Daylight Time
>Message-id: <afr33q$ghuma$1...@ID-79743.news.dfncis.de>

snip