I have a LV module connected to control my garage door, to open and close at preset times.
What is an LV module? X10 Model/Part Numbers are best to describe what you own.
...I would like the garage to open later and close earlier on cold days.
Question: Do you think if I put a thermostat in series it will work?
No. A (plain-vanilla heating) thermostat is a SPST switch. When the
ambient temperature is above the
set temperature, the switch is
OPEN. So, nothing would work.
Please explain the goal/purpose of your EXISTING setup - WHY do you want the garage door opened by TIMER (fixed times) instead of by RF REMOTE (random times as required)?
As
Puck previously stated, wiring the thermostat to the PowerFlash PF284 gives you a TEMPERATURE DEPENDENT FLAG that you can then check in AHP.
TIME is the other condition you'll be checking, so, in pseudo-macro speak:
IF (Temperature > 50) is True AND Time > 07:00 OPEN Garage Door.
IF (Temperature > 50) is False AND Time > 09:00 OPEN Garage Door.