HRV Wiring - HVAC - Page 2 - DIY Chatroom Home Improvement Forum
Advertisement


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

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

Like Tree15Likes
Reply
 
Thread Tools Search this Thread
Display Modes
Old 02-23-2020, 11:50 AM   #16
Newbie
 
Join Date: Feb 2020
Location: Ontario Canada
Posts: 15
Rewards Points: 30
Default

Re: HRV wiring


Thank you so much.

I might be back for more guidance once I receive the part.
surferdude2 likes this.
Pauly1971 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 02-23-2020, 03:24 PM   #17
Member
 
surferdude2's Avatar
 
Join Date: Nov 2019
Location: Southern Illinois, USA
Posts: 2,946
Rewards Points: 898
Default

Re: HRV wiring


You'll be welcome back and also expected back to report your success so others may possibly benefit later when reading this thread.

As I stated, I can't be sure of the quality of those current detector switches you linked since the only ones I ever used were much more expensive. We used them to protect expensive 3-phase equipment from getting damaged due to single phasing when one phase goes off, so a couple hundred dollar item was justified. In your situation, if they fail, it won't cause any damage so not to worry.
Pauly1971 likes this.
surferdude2 is online now   Reply With Quote
The Following User Says Thank You to surferdude2 For This Useful Post:
Pauly1971 (02-26-2020)
Sponsored Links
Advertisement
 
Old 02-26-2020, 05:14 AM   #18
Newbie
 
Join Date: Feb 2020
Location: Ontario Canada
Posts: 15
Rewards Points: 30
Default

Re: HRV wiring


I'm back.

I received the switch. Do I have to calibrate it?
Attached Thumbnails
HRV wiring-20200225_174441.jpg   HRV wiring-20200225_174430.jpg  
Pauly1971 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 02-26-2020, 09:37 AM   #19
Member
 
surferdude2's Avatar
 
Join Date: Nov 2019
Location: Southern Illinois, USA
Posts: 2,946
Rewards Points: 898
Default

Re: HRV wiring


Yes, once you get it installed, you need to set it properly.

Start with the adjustment potentiometer set at the highest position (fully clockwise).

Turn the HRV system on to the high setting.

Rotate the current switch potentiometer counterclockwise slowly until the blower starts up and then a little bit more. It's not critical... estimate how much rotation counterclockwise is left and setting it onward to 1/4 of that amount should be OK.

Then set the HRV to the medium setting and verify that furnace blower stops.

That should do it.
Pauly1971 likes this.
surferdude2 is online now   Reply With Quote
The Following User Says Thank You to surferdude2 For This Useful Post:
Pauly1971 (03-01-2020)
Old 02-29-2020, 03:31 PM   #20
Newbie
 
Join Date: Feb 2020
Location: Ontario Canada
Posts: 15
Rewards Points: 30
Default

Re: HRV wiring


I went for it today.
As per your instruction I turned the screw clockwise but it just spins to no end. I do hear a clicking sound. The red nor the green lights don't light up.
Bad switch?
Pauly1971 is offline   Reply With Quote
Old 02-29-2020, 03:57 PM   #21
Member
 
surferdude2's Avatar
 
Join Date: Nov 2019
Location: Southern Illinois, USA
Posts: 2,946
Rewards Points: 898
Default

Re: HRV wiring


If you have it wired right, then it may be a defective switch. If you have that Orange wire running through the hole on the switch and the switch connections in series with the fan control wire, it should be working unless there is a problem elsewhere in the furnace control circuitry.

For a test, remove one of the wires on the current sensor switch and see if the fan stops. If it does, the switch is not working.

If the fan doesn't stop when tested as above, there is a problem elsewhere and the switch isn't connected properly to the furnace to control the fan as needed.

Be sure the thermostat is not set to keep the fan on all the time.
surferdude2 is online now   Reply With Quote
The Following User Says Thank You to surferdude2 For This Useful Post:
Pauly1971 (03-01-2020)
Old 03-01-2020, 12:35 PM   #22
Newbie
 
Join Date: Feb 2020
Location: Ontario Canada
Posts: 15
Rewards Points: 30
Default

Re: HRV wiring


Today I was able to read and follow instructions. haha

I connected it according to your instructions. The green light on the switch is lit when I select max on the HRV but the furnace fan does not turn on.

When the furnace calls for heat, the red light on the switch is lit.
Pauly1971 is offline   Reply With Quote
Old 03-01-2020, 12:58 PM   #23
Member
 
surferdude2's Avatar
 
Join Date: Nov 2019
Location: Southern Illinois, USA
Posts: 2,946
Rewards Points: 898
Default

Re: HRV wiring


Quote:
Originally Posted by Pauly1971 View Post
I connected it according to your instructions. The green light on the switch is lit when I select max on the HRV but the furnace fan does not turn on.
It's counter intuitive since the green light means the switch is off and the red light means it's on.

With the HRV running in the high mode, adjust the sensitivity control of the switch until the red light comes on. That should cause the furnace blower to start running.
Pauly1971 likes this.

Last edited by surferdude2; 03-01-2020 at 01:01 PM.
surferdude2 is online now   Reply With Quote
The Following User Says Thank You to surferdude2 For This Useful Post:
Pauly1971 (03-01-2020)
Old 03-01-2020, 02:01 PM   #24
Newbie
 
Join Date: Feb 2020
Location: Ontario Canada
Posts: 15
Rewards Points: 30
Default

Re: HRV wiring


It works like a charm. Awesome!

Surferdude2 your knowledge base is incredible. I appreciate greatly the time you took to help me out.

Cheers
surferdude2 likes this.
Pauly1971 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply


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





Top of Page | View New Posts