Replies

1. 
   Reid Baldwin|Jul 19, 2017 09:40pm|#1

   There is probably a setting for the furnace that indicates whether it is hooked up to a single stage thermostat or a two stage thermostat. If the setting is set to two stage thermostat, the furnace will let the thermostat decide whether to run on high stage or low stage. If the setting is set to single stage thermostat, the furnace will use its own algorithm. Most commonly, the furnace will run for 10-12 minutes on low stage and the switch to high stage for the remainder of the call for heat. The thermostat may also have a setting to indicate whether the furnace is single stage or two stage. If you are counting on the thermostat to decide staging, it needs to be set to two stage.

   您没有提及多个区域。如果您有多个区域，则在您的多个恒温器和炉子之间有一个区域控制器。在这种情况下，分期逻辑可以在炉子或区域控制器中。

2. 
   Bryan56|Jul 19, 2017 10:59pm|#2

   感谢您及时的回复。将炉子钩在第三代巢恒温器上。我刚刚检查了接线，看到W1（热），g（fan），c（common）和rh（power）。Nest网站说，第二阶段的热量应该有W2。这听起来对吗？

   This is only for 1 zone.

3. 
   Jamie B|2017年7月20日上午10:41|#3

   I am not even close to an HVAC tech.

   Generally speaking from me looking at lennox wiring diagrams:
   W1 is stage one heat, W2 is stage two heat.
   Y1 is stage one cool, Y2 is stage two cool.

   The thermostat makes the determination of stage 1 or 2 blower speeds. And energizes the appropriate wire above to the furnace to tell it which speed to use.

   I beleive the furnace will have Dip switches that will change the timing parameters of when stage 1 and 2 is called for. You can read these in the EL296E installation manual.

4. 
   Bryan56|Jul 20, 2017 01:07pm|#4

   Thank you. I was able to pull up the install manual and check the specs. Looks like everything is setup correctly but wont be able to test until the cold weather starts.