lennox g14

[pressures]

what size is this unit ?--G14Q5-80-8
big furnace.would think 125-150k btu?
dont want to remove door to find out actual btu.

[Joehvac25]

80k, tell them to get a co detector.

[techwizard007]

Why whould you want to take off the door?

[techwizard007]

“I am so clever that sometimes I don't understand a single word of what I am saying.”
― Oscar Wilde, The Happy Prince and Other Stories

[pressures]

the door off to get the model #
this is from a service ticket--i'm at my mothers house in ohio .including basement the house is about 4000 sq ft.the furnace is phisically large.there must be a # missing I cant believe it is an 80k btu furnace..the inside is now 74---exterior---20 .not sure 80k btu would do this!

[Joehvac25]

It's 95% eff, it's a pulse also, so it's in your moms house?

[rundawg]

there must be a # missing I cant believe it is an 80k btu furnace..the inside is now 74---exterior---20 .not sure 80k btu would do this!

Joehvac25 is correct - 80,000 btuh (right from the manual).

G14Q5-80-8

G14 - Gas Furnace Series 14

Q - Direct Drive Blower

5 - Air movement capabilities in tons

80 - Btuh in thousands

8 - dash number

The number missing is the electrical characteristics "letter" at the end of the model number.

[Joehvac25]

Joehvac25 is correct - 80,000 btuh (right from the manual).

G14Q5-80-8

G14 - Gas Furnace Series 14

Q - Direct Drive Blower

5 - Air movement capabilities in tons

80 - Btuh in thousands

8 - dash number

The number missing is the electrical characteristics "letter" at the end of the model number.

What did I win lol.

If your having trouble getting the door off try this method, grab hand inset on door, lift straight up, then pull bottom of door out toward you, then down slightly. Reverse order to reinstall!

[rundawg]

What did I win lol.

The rest of the day off. Oh yeah, take the phone off the hook too.

[Joehvac25]

Here's my Job today!

[54regcab]

the door off to get the model #
this is from a service ticket--i'm at my mothers house in ohio .including basement the house is about 4000 sq ft.the furnace is phisically large.there must be a # missing I cant believe it is an 80k btu furnace..the inside is now 74---exterior---20 .not sure 80k btu would do this!

If the house has decent insulation an 80k furnace would have no problem doing a 55 split. Most people don't realize how powerful gas furnaces actually are, finding an undersized one in a house with decent insulation is like finding a unicorn. How much on time does the 80k have vs off time?

[chaard]

Joehvac25 is correct - 80,000 btuh (right from the manual).

G14Q5-80-8

G14 - Gas Furnace Series 14

Q - Direct Drive Blower

5 - Air movement capabilities in tons

80 - Btuh in thousands

8 - dash number

The number missing is the electrical characteristics "letter" at the end of the model number.

Letter at end designating voltage is on commercial units

[rundawg]

Letter at end designating voltage is on commercial units

I honestly can't confirm or deny what you are saying isn't true on the newer Lennox units, but the older residential units had it.

This 1994 model AC (see attachment) had it, so I would wager his early 1990's G14 unit did too.

I have an older model number nomenclature pdf (dated 2004) that shows all the electrical codes for Lennox's residential model numbers.

[Joehvac25]

That's not me in the pic either!

[pacnw]

I honestly can't confirm or deny what you are saying isn't true on the newer Lennox units, but the older residential units had it.

This 1994 model AC (see attachment) had it, so I would wager his early 1990's G14 unit did too.

I have an older model number nomenclature pdf (dated 2004) that shows all the electrical codes for Lennox's residential model numbers.

I agree with rundawg, it was on all their units until recently(not sure when they dropped it). it is not on their new stuff, at least not like it used to be(-3P for example).

[t527ed]

I honestly can't confirm or deny what you are saying isn't true on the newer Lennox units, but the older residential units had it.

This 1994 model AC (see attachment) had it, so I would wager his early 1990's G14 unit did too.

I have an older model number nomenclature pdf (dated 2004) that shows all the electrical codes for Lennox's residential model numbers.

used to be on condensing and package units.
all G series units that i know of are 120v so no voltage designation was used in their model #s.

[rundawg]

used to be on condensing and package units.
all G series units that i know of are 120v so no voltage designation was used in their model #s.

Good catch - you are correct!

I went back and reread the Lennox model nomenclature I have, and it says just that - No voltage designation for 120v systems.

Thanks for keeping me straight.

[chaard]

used to be on condensing and package units.
all G series units that i know of are 120v so no voltage designation was used in their model #s.

Good catch - you are correct!

I went back and reread the Lennox model nomenclature I have, and it says just that - No voltage designation for 120v systems.

Thanks for keeping me straight.

Yes residential a/c units have the letter designation.
Was talking about furnaces. Thanks for clearing that up.

[pressures]

the house has a 4 ton condensor---what is the cfm of the furnace on cool?

[t527ed]

that furnace has a 5 ton blower in it so at least 2000 cfm on high speed.
IF the duct work is sized right.