Mike Dolt Enterprises
Mike Dolt Enterprises
User: lenny44, Location: New Jersey
Asked on: Saturday, March 26, 2011 at 5:01 am EDT
Answered on: Tuesday, May 14, 2024 at 3:19 am EDT
Question: I installed a sub panel that is just for the ac condenser and air handler. The circuits are installed with 2 separate conduits one going to the air handler and 1 to the air condenser. I installed the control wiring with #14 THHN rated 600 volts from the air handler through the conduit then through the ac panel through the conduit to the condenser. I read article 725.48(b)1. It is a class 2 transformer.I know it mentions class 1, i have seen tons of condos were they have done this. I have failed an inspection for this and it is a major job to install the low voltage separately.What is the article to make this right or solution to fix this problem?
Article 725.48(b) states that:> "Class 2 remote-control, signaling, and power-limited circuits shall not be placed in the same raceway, cable, or enclosure with conductors carrying power or Class 1 circuits."Since your control wiring is connected to a Class 2 transformer and is not carrying power, it can be run in the same conduit with the Class 1 power conductors feeding the air handler and condenser. However, the control wiring must be separated from the power conductors by a partition or barrier.
Solution
To fix this issue, you can add a partition or barrier to separate the control wiring from the power conductors. This can be done by using a wire loom, a conduit divider, or a dedicated conduit for the control wiring.
Additional Notes: Some jurisdictions may have local codes that require low-voltage control wiring to be run separately from power conductors, even when using a partition or barrier. It's always best to check with your local electrical inspector before making any changes to an electrical installation. Flag for review