Prestige ACVMax Control Supplement

7.0 Cascade

7.5.12 DHW Integral Gain Default: 245

DHW Integral Gain allows the cascade response to be adjusted for a

domestic hot water call. DHW Integral Gain has the greatest influence

when the system temperature is close to the setpoint. Press the LEFT or

RIGHT buttons to adjust the DHW Integral Gain then press the OK but-

ton to store the setting.

• Increase DHW Integral Gain

- The Cascade System will take longer to reach the setpoint, but

setpoint overshooting is minimized.

- If the setpoint is reached too quickly, increase the DHW Integral

Gain value by 2. Perform Cascade Autodetection and initiate a

domestic hot water call. Observe the cascade response and make

further adjustments if necessary.

• Decrease DHW Integral Gain

- The Cascade System will reach setpoint faster, but overshooting

the setpoint may occur.

- To reach the setpoint faster, decrease the DHW Integral Gain

value by 2. Perform Cascade Autodetection and initiate a domes-

tic hot water call. Observe the cascade response and make fur-

ther adjustments if necessary.

Only make adjustments to this setting after consulting ACV-

Triangle Tube Technical Support. Improper adjustment of DHW

Integral Gain could lead to temperature fluctuations and erratic

cascade operation.

NOTICE

255

245

DHW Integral Gain