Installation and Operation Manual
TFTN 085-199
84
16.3.2.3 Cascade Setup
The Cascade Setup menu must be accessed to set the Boiler Address of each boiler that will be configured as part of a
cascade system; see section
. Once the cascade system is configured, the Cascade Setup
menu of the Manager boiler can be accessed to modify the operation of the cascade system. For Follower boilers in
cascade, the Cascade Setup menu can be accessed to modify the Emergency Setpoint or Burner Run Hours Harmonization
settings.
Figure 16-10 Cascade Setup Menu
Table 16-9 Cascade Setup
Setting
1
Parameter
2
Range/Description
Factory Setting
Boiler
Address
0.4.6
Establishes the configuration and role of the given boiler on the
communication BUS:
Unconfigured
–
boiler will only operate in Emergency mode. Boilers
connected on the communication BUS, without one configured as
Manager, will eventually default to Unconfigured. Default setting for
replacement controllers.
Single Boiler
–
for "stand alone" boilers, that are not connected to other
boilers via the communication BUS.
Manager Boiler
–
for the managing boiler in a cascade of multiple
boilers. Only one boiler in a cascade can be configured as Manager.
Follower Boiler 1...7
–
for non-managing boilers in a cascade of multiple
boilers. Each Follower in the cascade must have a unique address, i.e.,
1...7.
Note: for boilers already configured as a Follower Boiler, setting options
Single Boiler and Manager Boiler will not be available. To make them
available, first set the Follower Boilers as Unconfigured and disconnect it
from other boilers on the BUS.
Single Boiler
Emergency
Setpoint
24.0.7/
26
…
32.0.7
Sets the boiler operating temperature when there is a malfunction of
the BUS circuit. Applicable for Unconfigured and Follower boilers when
the cascade Manager is not connected on the BUS.
113°F
(Continued
…
)
Only Boiler Address, Emergency
Setpoint and Burner Run Hours
Harmonization will be visible
for a Single or Follower boiler.
The others are only visible on a
Manager boiler.
