Table of contents

Functional Description

       Control Functions

               Buffer Control Configurations

               One stage charging (BufMid1Temp = “999”)

               Two stage charging (BufMid1Temp <> 999 AND BufMid2Temp = 999)

               Three stage charging (BufMid1Temp <> 999 AND BufMid2Temp <> 999 AND BufMid3Temp = 999)

               Four stage charging (BufMid1Temp <> 999 AND BufMid2Temp <> 999 AND BufMid3Temp <> 999)

               Charging Valve Output Control

               Changeover Control

               Charging Pump Enable

               Operation Mode

       Override Functions

               Charging Pump Cycling At Closed Valves

               Buffer Overheat Protection

               Stop Buffer Loading at High Outdoor Temperatures

Inputs and Outputs

Parameter List

Programming Hints

       Default Values for unused Inputs

       Heat Demand Connections

       Multi-Level Buffers

Start-up Hints

       Stratified Buffer Charging

Glossary