Amerec PCA for AR/AK/3K Models

Description

This 3224-022 board replaces both the 3221-xxx and 3223-xxx boards and 3209-01 board. It is compatible with any controls or room temperature sensor that were connected to previous versions. Some versions had only four of the large black relays instead of six. The 3224-022 will work with those as well, just leave no connections on the back set of relays labeled K5 and K6.