Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > HVAC

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 12-14-2012, 08:23 PM   #16
Newbie
 
Join Date: Sep 2010
Posts: 23
Rewards Points: 0
Share |
Default

My unit is a dinosaur


Quote:
Originally Posted by SuperJETT View Post
What about just getting by with spot heaters this winter?
I use one for bath/shower time.

Rita2 is offline   Reply With Quote
Old 12-14-2012, 08:32 PM   #17
Newbie
 
Join Date: Sep 2010
Posts: 23
Rewards Points: 0
Default

My unit is a dinosaur


So, no one believes that finding and connecting the correct thermostat would make a difference? When I get ready (financially) to replace it I would want a heat pump (I'm in the SW) so switching out the old cable would be needed anyways...in the mean time, I would love to see if this one will help me a little longer
Rita2 is offline   Reply With Quote
Old 12-15-2012, 02:46 AM   #18
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 25,079
Rewards Points: 50
Default

My unit is a dinosaur


Doubt the thermostat is the cause of not enough heat.
beenthere is offline   Reply With Quote
Old 12-15-2012, 05:22 AM   #19
Member
 
Join Date: Oct 2009
Posts: 67
Rewards Points: 0
Default

My unit is a dinosaur


looks like a old rebadged carrier to me also dont think it is a heat pump
mrairflow is offline   Reply With Quote
Old 12-15-2012, 04:03 PM   #20
Newbie
 
Join Date: Sep 2010
Posts: 23
Rewards Points: 0
Default

My unit is a dinosaur


Quote:
Originally Posted by beenthere View Post
Doubt the thermostat is the cause of not enough heat.
I'm thinking in the sense that the current thermostat is not signalling the heat strip to come on?
Rita2 is offline   Reply With Quote
Old 12-15-2012, 04:07 PM   #21
Newbie
 
Join Date: Sep 2010
Posts: 23
Rewards Points: 0
Default

My unit is a dinosaur


Quote:
Originally Posted by mrairflow View Post
looks like a old rebadged carrier to me also dont think it is a heat pump
you're thinking it's a regular a/c unit? what determines if it is heat pump or not?

I don't know anyone else who has anything looking like this and even the people who come to give estimates always have something crazy to say
Rita2 is offline   Reply With Quote
Old 12-15-2012, 04:55 PM   #22
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 25,079
Rewards Points: 50
Default

My unit is a dinosaur


Quote:
Originally Posted by Rita2 View Post
I'm thinking in the sense that the current thermostat is not signalling the heat strip to come on?
Possible. usually no the case though. thousands of thermostats are changed out on based on this thought. And they weren't the problem.

As a test, remove the stat, and jumper R to G to W(plus W2 if it has it). It should run and all the heat should come on if its a stat problem..
beenthere is offline   Reply With Quote
Old 12-15-2012, 05:54 PM   #23
Newbie
 
Join Date: Sep 2010
Posts: 23
Rewards Points: 0
Default

My unit is a dinosaur


If I say something and I sound green...trust me, I'm green.

For instance when you said jumper g w and r and I thinking
that I can do just with those 3 colored wires. When you throw
in w2, although I know from reading that is a black wire, I feel
like I would be paying attention to the stat. I'll pass it on word
for word though to the person helping me and I feel they will
understand. I'll definitely have us try it though. Will post what
is found. Thanks
Rita2 is offline   Reply With Quote
Old 12-15-2012, 07:23 PM   #24
Roofmaster
 
Join Date: Oct 2012
Location: Maryland
Posts: 3,621
Rewards Points: 22
Default

My unit is a dinosaur


Hi Rita,

I may be wrong here but I actually worked on a unit like this on the roof of a temple some time ago. Im pretty sure that this is just a radiator and a fan, and the boiler/chilled water unit that supplies it is somewhere else. Basically it sends chilled water through it in the summer and hot water through it in the winter time. I think this is an old commercial type of air handler, not what I would consider a package unit. The original color points to Carrier. I am admittedly limited in HVAC, but Ive seen a lot of rooftop units, and like a said I worked on one like this and thats how it worked.
__________________
" A lot of men build things, and a lot of things fall down "

jagans is offline   Reply With Quote
Old 12-15-2012, 09:04 PM   #25
Member
 
Join Date: Jul 2012
Location: Toronto ON
Posts: 599
Rewards Points: 0
Default

My unit is a dinosaur


Look at the pictures...sure looks like cooling coil is plugged solid AND there ARE heat strips/electric coils showing...just asking ...could the AC coil be so restrictive causing low air flow and low heating capacity or preventing activation of heat due to air flow switch or similar limit switch? If replacement inevitable AND you don't need the AC until replaced then have the coil removed to free up air flow may be worth considering...OR call in Commercial service company who understands these units more so than domestic/residential guys..no rub either way..it's just that the training and experience are very different...OR you need a residential guy who understands these old units..you should at least be able to get some heat or reason why heating coils are either not coming on or are not producing heat...call Dinosaur Heating
techpappy is offline   Reply With Quote
Old 12-16-2012, 12:39 PM   #26
Member
 
Join Date: Dec 2008
Posts: 443
Rewards Points: 0
Default

My unit is a dinosaur


Hi Rita2, check your messages.
sammy37 is offline   Reply With Quote
Old 12-17-2012, 09:13 AM   #27
Member
 
Join Date: Dec 2008
Posts: 443
Rewards Points: 0
Default

My unit is a dinosaur


I looked at the pics again and if you look close enough, the heat strips arent even part of the unit, it's a cooling only model. The heat strips are installed in the supply duct right outside the unit.
Seen a few of these here in some of the older homes, most have been disconnected with a unit changeout but left in place with the ductwork.
sammy37 is offline   Reply With Quote
Old 12-18-2012, 12:01 PM   #28
Newbie
 
Join Date: Sep 2010
Posts: 23
Rewards Points: 0
Default

My unit is a dinosaur


Quote:
Originally Posted by techpappy View Post
Look at the pictures...sure looks like cooling coil is plugged solid AND there ARE heat strips/electric coils showing...just asking ...could the AC coil be so restrictive causing low air flow and low heating capacity or preventing activation of heat due to air flow switch or similar limit switch? If replacement inevitable AND you don't need the AC until replaced then have the coil removed to free up air flow may be worth considering...OR call in Commercial service company who understands these units more so than domestic/residential guys..no rub either way..it's just that the training and experience are very different...OR you need a residential guy who understands these old units..you should at least be able to get some heat or reason why heating coils are either not coming on or are not producing heat...call Dinosaur Heating
I called Dinosaur Heating and Cooling, they are sending some out
Rita2 is offline   Reply With Quote
Old 12-18-2012, 12:08 PM   #29
Newbie
 
Join Date: Sep 2010
Posts: 23
Rewards Points: 0
Default

My unit is a dinosaur


@Sammy37 please check your pms. Thanks again.

Had to take a break from hvac for a couple days, today we should
be trying all suggestions given so far, including Sammy, taking a closer
look at that heat strip and your thoughts on what's going on there. Yesterday
I picked up a little tool called a fin comb so my first task is to straighten those fins...some are kinda bent out of shape.
Rita2 is offline   Reply With Quote
Old 12-18-2012, 02:12 PM   #30
Member
 
Join Date: Nov 2011
Posts: 301
Rewards Points: 0
Default

My unit is a dinosaur


so, I see a couple of things that I would do if it were mine...

1. fin comb.. be very carefull. You need to match the number of fins per inch on the comb with the number of fins on the evap coil. I was taught to use the fin comb as gently as a man who is going bald combs his hair. Take your time and be careful not to tear the fins or hit the coils inside the evap. (I appologize to any one who is bald).

2. after the combing, clean, clean, clean. use water and a shop vac, a brush, compressed air what ever it takes to gently dislodge or remove all dust and dirt, even way deep inside. take care not to use to much force or you will damage the fins again or worse!!

3. I would clean up any and all wire connections. get them shinny where there connect. not just the outsides. Looks to me like the crimps (the yellow things) are either dirty or burnt... might be good to change them. Dont forget the thermostat wires. take pictures if you need to in order to get it all back together.

4. that contactor looks like its about had it.. I would clean the contacts or replace it. I lean towards replace it.

5. remove, check and clean the heating coils. On something that old, any insulation on the heat strips maybe ripe for failure. You might also find that the wires are broken or creating an open when heating. also check and be sure the fuse or breaker is the right size and not oversized. we dont want a fire!!!!

6. verify all safety switches are working. Most are normally closed so checking them for continuity should be easy.


good luck and have some fun, worst case is your cold all winter!!!!! LOL

bob in (warm) phoenix.

bobinphx is offline   Reply With Quote
Reply

Tags
artic circle, heat pump, heat strip, packaged, thermostat


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Ruud Pack unit "KABOOMS" upon First Light Up of the Day! Wirenut2tite HVAC 18 12-15-2012 10:11 AM
Rusted and almost gone drain pan, Package unit Nordyne kilosos2 HVAC 3 11-18-2012 09:24 AM
Had an Aire-Flo AC installed, looking for opinions mikemcd HVAC 14 08-01-2011 04:07 AM
new r-410a ac unit installation procedure(w/old unit r-22)? excalibur1 HVAC 0 06-06-2011 03:47 PM
Window A/C Unit and Supplying Power JayEnder Electrical 1 04-30-2011 07:50 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.