New to HVAC Guy Question

[beenthere]

You think the old one is a 3 ton. And you want to install a 5 ton instead.

Hope you planned on redoing all of the duct work.

[seatonheating]

This has DIY written all over it.

[supertek65]

LOL!!!!!!!!!!!!

youd think the great hvac guy would know hot to measure the supply and return openings to order the curb???????

This has DIY written all over it.

[beenthere]

LOL!!!!!!!!!!!!

youd think the great hvac guy would know hot to measure the supply and return openings to order the curb???????

And how to get an idea of what size the old unit is weather or not the model number can be read.

[supertek65]

now that takes a real pro!!!!!!!!!!


what color was it again??????????

And how to get an idea of what size the old unit is weather or not the model number can be read.

[beenthere]

now that takes a real pro!!!!!!!!!!


what color was it again??????????

Just need to know what/where to look at.

Small EG:

An 1-1/8" vapor line on a compressor gives it away that it isn't a 3 ton unit.

[supertek65]

you mean to tell me ruud has made more than one model?????

[beenthere]

you mean to tell me ruud has made more than one model?????

LOL...

Changed out a stat on a Ruud 10 ton split sometime ago. Set teh stat to cool, and the heat came on.

Thats when I found out that on their commercial units(atleast some of them). They use the RV like everyone else does.

[supertek65]

ruud 10 ton omg!!
i am not even kidding

i have never heard of such a thing!!!!!!!!!

LOL...

Changed out a stat on a Ruud 10 ton split sometime ago. Set teh stat to cool, and the heat came on.

Thats when I found out that on their commercial units(atleast some of them). They use the RV like everyone else does.

[beenthere]

ruud 10 ton omg!!
i am not even kidding

i have never heard of such a thing!!!!!!!!!

There out there. This one, was 1 of 2, for a gymnasium at a church.

[Faron]

The unit is really old and everything has been changed out at one point or another. So when I looked all over the unit nothing came up. This is a office complex that is owned by the company I work for. In an effort to figure out the model number I went from one roof top to the next to find a unit that was the same. Third building was a charm! Thanks for all the help, and the insults. Being new to this I know I have room for improvement so I will lurk most of the time and post when I feel I have something to add.