I hope the Pros monitoring this forum can help me, where Honeywell unfortunately has declined to provide information. Our oil company installed the aquastat along with a Solaia boiler & Riello burner, but they don't seem up-to-date on the L7248L features.
The aquastat's full model number is "L7248L 1070 1." The L7248L is connected to a Taco SR506, one of whose zones is indirect DHW. The SR506 connects only to the TT terminals on the 7248; right now the aquastat's ZR is not used. In the interest of saving energy and money I am investigating Honeywell Outdoor Reset modules.
- When I step thru the aquastat settings the only ones listed are HL_, F-C, and ELL. Could you please explain why duu, tPL, and tPt are unavailable? I do understand that the Reset settings (such as OtL, BtL) should be shown only when an approved reset module is detected on the Enviracom bus
Thank you very much for your help!