Lennox HP size question

[Colprop]

Lennox Heat Pump 1987 model

Model # HP18-511V-4P
Serial # 5187E38429

Thanks! Jerry

[heatpumpman24]

3.5 ton

[Colprop]

Thanks HeatpumpMan!

[mark beiser]

The 511 is 4 ton unit. If it was 3.5 ton it would be 461

[warp1]

Is 311U a 2 ton and 411U a 3 ton? Just curious.....thanks

[BaldLoonie]

Look at the nearest 1/2 ton and round up.

30,000 round up to 311 for 2.5 ton
36,000 round up to 411 for 3 ton

Of course without knowing exact evap match and looking at the ratings, could be a several thousand BTU range on any size.

[t527ed]

hp18-511 cheap builder grade 4 ton

[Gunnery Sergeant Hartman]

Size and efficiency of
M# HS29-261-2P
S# 5896H23023

Thanks!

[t527ed]

10 seer 2 ton

[the dangling wrangler]

Try 1-800-453-6669.

[Toolpusher]

2 Ton -- 261 -- 024

2 1/2 Ton -- 311 -- 030

3 Ton -- 411 -- 036

3 1/2 Ton -- 461 -- 042

4 Ton -- 511 --048

5 Ton -- 651 -- 060

[rjb7112]

i was always told the first 2 number equal btu IE 261 is 26,00o btu . 311 31000 and so on its easier to remeber for me anyway

[t527ed]

toolpusher has them right