Search found 3 matches

by jim_scanlon
Mon Aug 10, 2009 12:13 pm
Forum: Help and Advice
Topic: MA-ND3 Damper is closed whether light is green or red.
Replies: 1
Views: 15798

MA-ND3 Damper is closed whether light is green or red.

My daughter has EWC Zone damper model MA-ND3. I removed the zone damper and I found that damper remained closed whether light is "green" or "red". Does this mean motor is no longer functioning?

Also I tried to remove the motor, I remove bolt on rear of the unit, but can't seem to remove. Is there ...
by jim_scanlon
Thu Mar 19, 2009 12:42 pm
Forum: Help and Advice
Topic: Recent install of 2nd damper in same zone
Replies: 5
Views: 26443

Re: Recent install of 2nd damper in same zone

Eric
I was wrong. Both dampers that are wired in parallel do open and close correctly.

What I wanted to do was if thermostat is OFF in Zone 2 that the dampers for Zone 2 would remain open and not Close when Zone 1 is calling for heat or cooling. Is there a way to do that without disconnecting Zone ...
by jim_scanlon
Tue Mar 17, 2009 12:04 pm
Forum: Help and Advice
Topic: Recent install of 2nd damper in same zone
Replies: 5
Views: 26443

Recent install of 2nd damper in same zone

I have the following zone system configuration:

1. EWC UZC4 (up to 4 zones) only have 2 zones.
2. Zone 1 is for first floor - and has Aprilaire damper - 2 wire connected to zone 1 panel M1 M6 connection.
3. Zone 2 is for second floor and has 2 dampers on each heat duct.
* Duct 1 has Aprilaire ...