Question about Fantech EDF5 Intellitek 5MR Control for HRV/ERV's White
Installed SHR 2005R on new HVAC system (indoor exhaust from hallway return air and with fresh air into house thru return air trunk before it turns down to filter and air handler). Wired per Alternate Accessory Control Contact as in manual (to exterior COM, N.O. & N.C. contacts). If I set to low or medium with rocker switch, furnace fan runs continuous along with HRV fans. If I set rocker switch to stand by it does not cycle on when furnace comes on and blower is running. Is there a way to wire the HRV to operate any time the air handler is running (heat or air) but not operate continuous as it does now when rocker is set to low or medium (which also runs air handler all the time??
In my case I didn't have to get additional controllers to make it work intermittently.
I wired it to my Honeywell VisionPRO IAQ thermostat interface, which has 2 dry contacts for ventilator. They should be wired to the "dehum" contacts on the Fantech system.
Then you'll have to control it via the thermostat on timed operation or leave it on "Auto" and will automatically circulate based on your settings. I hope this helps.
Posted on Mar 27, 2009
The SHR2005R will turn on the furnace Blower if the furnace is not running to circulate the fresh air. The reason the furnace will not trun on the HRV is, the purpose of the HRV is continuous Ventilation in your home. It should not be turned off when your furnace is not running. That why Fantech has not design the HRV's to run that way. I hope this helps.
Posted on Feb 10, 2009
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Posted on Jan 02, 2017
This timer appears to be Leviton LTB60
Timer has 1 year limited warranty, evidently from manufacturer.
If timer is making humming sound, then it is defective, possibly receiving undervoltage on the line, or wiring installed incorrectly.
Switch noisy timer with one of the other timers, and see if problem follows the timer, or is related to the specific location.
Otherwise replace with LTB60 from Amazon for $24.
Or buy Intermatic Ei200 timer, or replace non-electronic with spring-wound timer such as 60-minute Intermatic FD60, or 30-minute FD30, etc.
Posted on Nov 24, 2012
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