Leaking capillary tube in water source HP - http://www.hvacmechanic.com/ Forums


Original message

PDS

71.76.210.213

"Leaking capillary tube in water source HP" , posted Sun 7 Sep 00:04user profileedit/delete messagepost reply

Have Trane 1.5 ton water source heat pump. I currently have water leaking out of an insertion tube that a capillary style thermo limit switch is pushed up inside of that senses the exiting water temp. I slid 10" of straight capillary out of the tube to remove. No damage evident. Don't see how reinserting without some sealant or pressing in a rubber stopper would ever seal from leakage. The insertion tube must lead directly into the discharge water pipeline. How should this be sealed from leaking?

Thanks for your help

 


Replies:

yuri



142.161.103.182

"Re(1):Leaking capillary tube in water source " , posted Sun 7 Sep 12:10user profileedit/delete messagepost reply

Usually it is called a "thermo-well" and has heat conducting graphite grease in it to make the capillary work accurately. If it is leaking then it needs replacing B4 it bursts or gets a LOT worse.

Yuri