Hello, My whole house dehumidifier Climadry, built into a 3-ton Tranquility 27, is overcooling my house. Entering air temp is 72˚and leaving air temp fluctuates between 59˚ to 67˚, measured at the top of the unit. LAT should be stable at around 72˚, so that over-chilling does not occur. Technical support staff at Climatemaster suggests that the Climadry's reheat water coil was not properly purged at the installation time. This is correct, as the initial loop installer, now out of business -HVAC installer reports- was unfamiliar with the Climadry's special purging requirements. My HVAC installer, also unfamiliar with Climadry, is not able to locate the bleed valve, for letting the air out manually from the coil. Can anyone tell me the location of this valve? How can one access it? I will relay the info to my installer. Thank you for your help. Regards, Masoud

No help!
Have I been bad?

Regards,

Masoud

Sorry no one has responded Masoud. I would help if I could.

Sorry, M figured the one response was an answer. I don't know off the top of my head as I have never sold this feature, but I will try to find out and get back to you.
You might also have your current repair agent contact the distributor for their tech support staff.
Give me a call if you don't have a new repair co. and I will contact them if need be.
Joe

Dewayne, thank you.

Joe, thank you, also. I think my house is within your service area. I'll call to get an appointment.

Regards,

Masoud

Same here - I hardly ever shy away from replying, but I'm simply clueless about this. It does sound as if there could be a water flow issue in the reheat section. It would be nice if there was a bleed at the top of it, but it might simply have to be flushed at high enough velocity to entrain the air, if any.

Curt,

Thank you for responding. I don't feel ignored, now.

Technical support staff at Climatemaster and the manufacturer's document on flushing/purging Climadry say there is a bleed device "at the top" of the reheat coil, to be used as an additional step after flushing is done. Two technicians so far have looked, but not been able to locate it. Though, no one has removed the ductwork and the unit's top cover to get to the top of the reheat coil.

Oh, I talked with Joe about this yesterday. I'm looking forward to meeting with him.

Regards,

Masoud

M,
I did have a chance to go through my tech manual, which may be what you sent me. I'll have to swing by a place with WiFi to download a file that size

To all, looks like coil was to have been flushed with heat pump by opening/closing a 3 way valve. Will call distributor RE location of bleeder.

Hopefully we can have this resolved for our friend by isolating the loop system and using household water to avoid expense of performing entire loop flush.
Joe

Joe,

Yes, I sent you one page of the manual, where it refers to flushing the water coil, using the 3-way water valve, and bleeding the coil. I did think of your dial-up internet connection, but I also thought if you had to download the whole manual (27 MB) vs one page, one page wins!

Thank you.

Regards,

Masoud

2 days now waiting for distributors "tech" to answer the "where the hell is the bleed valve question".
M,
When we spoke I mentioned we've been bombed. I am following up, don't give up on me.
J

Found it!
I never was able to get a picture of valve location, but I did get a verbal by voice mail.
Once I was in front of Masoud's geo, the verbal description clicked.
Upper and lower bleeders are similar to baseboard radiator coin vents attached to 1/4" copper pigtails (they are made to be bend-able to direct them towards service panel used for access).
I'd read up on the flush process before I went, but did not have to revisit the instructions as M had educated himself more than I.
We isolated the ground loops and purged re-heat coil and coax with house hold water supply.
Once done we re-checked antifreeze level (fine) and performed a battery of tests to confirm desired operation.
I was glad we didn't have to bring flush cart (to keep price down). I'm delighted to report that Masoud's bill was modest (by any standard) and I have to say the Climadry is really cool. If M wants to drop humidity in the house, he activates the system which only shows a 2* drop between entering and LAT.
BTW, Masoud and Mrs. G are lovely folks (as I expected) and I was delighted to meet and help them.
J

Hi,

This is my version of Joe's visit today. I wrote this on my WP, before reading Joe's post. Forgive me for repeats.

Joe and I met today. He is friendly and personable. He listened to me. He had gathered all the info he needed and had a plan for solving my problem. He had gotten a verbal description of the location of the bleed valve from the Climatemaster’s local distributer tech.

There are two coils of black tubing one near the top and one at the bottom of the reheat coil. At the end of each coil there is a nipple that you can unscrew and water (along with air bubbles) comes out in a tiny stream. The purpose of the coil seems to be for extending it out so you won’t get everything wet inside when water shoots out. I had seen the coils, but not the valves, as they were not visible, facing inside of the box. I had thought that the rolled coils were just extra tubing there, poor imagination!

Joe isolated the ground loop at the flow controller box. He used a hose and domestic water to flush the reheat coil, avoiding the extra cost of employing a flush cart, then bled the valves. The tstat wires were attached directly to the ECM fan board. Joe reconnected them to their designated block. He added pressure to the ground loop, checked heat transfer, and amp draws. Everything works properly now. He spent two hours + at my house, fixed my problem - being cold in summer. He will try to collect most of the cost from the warranty offered by the distributor.

Two other people had told me that they would consult with the distributor's tech and would get back to me. They did not.

Thank you Joe!

Thank you Dewayne for reviving my initial post!

Regards,

Masoud

Kudos to Joe for helping Masoud and teaching us all the solution.