Description
The Johnson Controls A70HA-1 4-Wire Temperature Control is used in HVAC systems such as coil freeze detection and ventilation system shutdown. It works within the temperature range of 15-55°F and has a vapor-charged sensing element with a 20-foot capillary. This part uses snap-acting contacts to break the main circuit and make the auxiliary circuit at the same time when the temperature decreases. It has the advantages of high reliability, easy adjustment with a screwdriver slot, and durability for typical working conditions.
