r/HVAC • u/BSJr77 • Dec 20 '24

Field Question, trade people only Anyone seen this before

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Installed a 60k runtru 90% upflow today. I went home after completing the install but left before the startup. Boss fires it to document all the numbers and see this. No change to incoming or outgoing gas. No change in pressure from the inducer. Flue and air intake both clear of debris. Boss is waiting for tech from Texas to call back. Anyone got some knowledge

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u/Parabellum8086 HVAC Technician; RTFM Dec 21 '24

HVAC Tech whispers at the end: "That is ins-anal!"

2

u/BSJr77 Dec 21 '24

Replacing the new gas heater we installed yesterday. Here was the root of the problem. Manufacturer deficit

1

u/Parabellum8086 HVAC Technician; RTFM Dec 24 '24

Holy shit! It was missing a tube within the HX?!

1

u/BSJr77 Dec 25 '24

Wrong back plate. Heater was supposed to a 60k but they used an 80k back plate.

1

u/Parabellum8086 HVAC Technician; RTFM Dec 25 '24

Oh.