Installing 2 ecobee3lites with HZ311 controller

Old 11-30-22, 04:10 PM
Thread Starter
Join Date: Jan 2007
Location: MA
Posts: 484
Upvotes: 0
Received 0 Upvotes on 0 Posts
Installing 2 ecobee3lites with HZ311 controller

Quick question, I have installed a couple of ecobee3lite thermostats using the PEK and installing at air handler so have some knowledge. I am installing 2 on a system with a Honeywell HZ311 controller and no C wire. My question is do I need to install a PEK for each thermostat and should that be done on the controller at t=stat connections?

Old 11-30-22, 06:00 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Jersey
Posts: 62,064
Received 3,420 Upvotes on 3,066 Posts
I don't use the power adapter. I run new cable.
If you don't have enough wires to carry a C then you need to use a PEK and it goes at the EIM.

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: