Posted by Harold Kestenholz - Hydronic Network on September 27, 2000 at 09:43:59:
In Reply to: low ambient control posted by Kelli on September 26, 2000 at 20:08:20:
This depends on the unit manufacturer. Some low ambient controls cycle the outdoor fan on a pressure switch, others work off combinations of pressures and temperatures. Contact the manufacturuer and ask for the low ambient kit wiring diagram.