CleaverBrooks CFC-500 Operation, Service And Parts Manual page 199

• See Falcon Modbus specification for details.
Typical values: 2-15
(3) BL = Baseload common
(a)"BL" for baseload
(b)User selection 0 – 100 %
(4) Use existing timeout, Done button, and Next but-
ton functionality to enter these parameters.
(5) User selections will be selected by MMI.
(a)The local display does not adhere to the PCB
(OEM parameter selections used by system
display).
5. In normal display operation the display allows a user to
scroll through a list of temperatures with associated
icons (CH, Inlet, Delta, DHW, Stack, Outdoor) using the
Next button. With LL active the display will show the
header temperature at the end of the list of temperatures
as follows:
a. The characters "LL" are displayed in the number
field.
b. When the next button is pressed again the tempera-
ture is displayed.
c. If the Up or Down buttons are pressed then the LL
set-point is changed.
System Display Configuration
The following parameters are available for OEM configuration
and may be adjusted through a System Display or
programmed at the OEM production facility.
Table 33. OEM Configuration Parameters
Master Falcon
LL frost protection enable
LL frost protection rate
Base load rate
LL CH demand switch
LL CH set point source
LL Modulation sensor
LL Base load common
LL Modulation backup sensor
LL CH 4mA water temperature
LL Lead selection method
LL CH 20mA water temperature
LL Lag selection method
LL Add stage method 1
LL Add stage detection time 1
LL Add stage error threshold
LL Add stage rate offset
LL Add stage inter-stage delay
LL Drop stage method 1
LL Drop stage detection time 1
LL Drop stage error threshold
LL Drop stage rate offset
LL Lead rotation time
LL Force lead rotation time
LL Drop stage inter-stage delay
Slave Falcon
Slave mode
Base load rate
Slave sequence order
LL Demand to firing delay
Slave Operation and Setup
Slave Data Supporting Lead Lag
This data is provided by each slave control to support
operation when a LL master exists. Fig. 29 summarizes the
slave's registers and data:
75
CB FALCON
750-265