| Application: | Zoning |
|---|---|
| Number of Zones: | 4 |
| Used With: | Most Zone Valves or Relays |
| Switch Action: | .085 |

This add-on module is for adding zones onto an existing ARM switching relay that has the expandable option, such as SKU: ARM4P, which is a 4-zone expandable switching relay. However, this unit is used with pumps, not zone valves. Depending on what is already in your system and what you are adding onto, you may try looking at the zone valve control modules, such as SKU: ZVC403-2, which is for use with zone valves.