Prestige TriMax Control Supplement

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CH or DHW Boilers

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The CH or DHW Boilers setting specifies how many boilers in a Split

Cascade System will respond to a domestic hot water call. The CH or

DHW Boilers always include the Master boiler. The remaining boilers

will only respond to central heating calls. This allows the Cascade

System to satisfy both central heating and domestic hot water calls at the

same time. At the completion of a domestic hot water call, the CH or

DHW Boilers will again be available to respond to central heating calls.

Press the !( or &( buttons to adjust the CH or DHW Boilers

setting then press the $ button to store the setting.

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CH Proportional Gain allows the cascade response to be adjusted for a

central heating call. CH Proportional Gain has the greatest influence

when the system temperature is far away from the setpoint. Press the

!( or &( buttons to adjust the CH Proportional Gain then press

the $ button to store the setting.

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- The Cascade System will reach setpoint faster, but overshooting

the setpoint may occur.

- To reach the setpoint faster, increase the CH Proportional Gain

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

tral heating call. Observe the cascade response and make fur-

ther adjustments if necessary.

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

setpoint overshooting is minimized.

- If the setpoint is reached too quickly, decrease the CH

Proportional Gain value by 2. Perform Cascade Autodetection

and initiate a central heating call. Observe the cascade response

and make further adjustments if necessary.

NOTICE

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CH Proportional Gain