cascade Installation
25
•
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 soft or hard lockout. The alarm contact will also close
on the Master boiler when any of the Slave boilers are locked out.
cascade Installation – cascade autodetection
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.
cascade operation – Lockouts
If a lockout occurs to a boiler in a Cascade System, it will be removed
from Cascade System operation. The remainder of the Cascade System
continues to operate and the next available boiler will fire if necessary.
The Lockout Screen will be displayed on the locked out boiler as well as
the Master boiler. The Master boiler Lockout Screen will also indicate
which boiler in the Cascade System is locked out.
Cascade Autodetection
Press OK button
to begin Cascade
Autodetection, any
other button to cancel
Boiler #3 locked out due
to failed ignition
Boiler #2
Slave
Boiler #1
Master
The Master boiler indicates
that boiler #3 is locked out
because of failed ignition.
Failed Ignition
The burner failed to light
after 5 ignition attempts.
Check gas supply to boiler.
If problem persists after two
reset attempts, call service.
Press OK to reset.
[3] E1
Boiler #3
Slave
Failed Ignition
The burner failed to light
after 5 ignition attempts.
Check gas supply to boiler.
If problem persists after two
reset attempts, call service.
Press OK to reset.
E1
Slave Operation
--
Содержание Prestige Excellence
Страница 13: ...11 cH Settings fig 2 System Piping with System Pump cH1 cH2 dHW...
Страница 14: ...12 cH Settings fig 3 System Piping with System Pump cH1 cH2...
Страница 15: ...13 fig 4 System Piping with System Pump cH2 cH Settings...
Страница 33: ...31 cascade Installation fig 11 Split cascade Wiring note Reference Fig 10 page 30 for cascade piping...