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7.0
Cascade
7.3.5 Line Voltage Wiring Connections
• Circulator Wiring - Reference Figures 22, 24 and 26 on pages 45, 47
and 49 for circulator wiring required for each type of Cascade System.
The circulator connections used will depend on the systems piping
layout.
All circulators are powered from a common 5A fuse located on the con-
trol module. The total combined amp draw of the all circulators must
not exceed 5 amps at any time. Use an isolation relay to lower the total
combined amp draw if exceeding this limits.
• Power Supply – A dedicated 120 VAC / 15A minimum service must
be used to power the boilers in the Cascade System. Multiple boil-
ers in the Cascade System can be placed on the same electrical cir-
cuit. Each boiler can draw a maximum of 8 amps.
• Alarm Wiring – The alarm contact closes whenever that particular
Prestige is in a condition set by the Error Relay Setting. The alarm
contact will also close on the Master boiler when any of the Slave
boilers are locked in a condition set by the Error Relay setting.
7.3.6 Cascade Autodetection
7.3.6.1 Navigation:
Home Screen>Installer Menu>Cascade>Cascade Autodetection
The Cascade System must be configured after wiring is completed and
any required adjustments are made in Cascade Settings. The Cascade
Autodetection function automatically finds and configures all boilers in
the Cascade System. This eliminates the need to manually configure
each boiler of the Cascade System. Select Cascade Autodetection on
the Master boiler then follow the onscreen instructions to perform
Cascade Autodetection. Once Cascade Autodetection is finished, a
message will be displayed indicating how many boilers have been
found. If the number of boilers found is correct, press
OK
to finish
Cascade Autodetection. If the number of boilers found is not correct,
check the cascade communication cables between the boilers and
repeat Cascade Autodetection.
NOTICE
Cascade Autodetect.
Press OK button
to begin Cascade Autodetection,
any other button to cancel
2015-10 Prestige ACVMax Control Sup 12-14-15_ACVMax_Control 12/15/15 7:37 AM Page 42