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Operating screen:
H E A T
I N G : S T A N D
o
> > >
:
1 2 3
.
4
C (
Press [MENU]
Select "Parameter" using [◄] & [►]
M a
i n
M e n u
P a r
a m e t
e r
Press [ENTER]
Parameter menu:
I n s t
a
l
l
e r
c o d e
0 0 0 0
Enter the 4-digit code with the [◄] & [►] and the
[▲] & [▼] buttons and select [ENTER]
The code will blink a few seconds and when entered
correctly, the following parameters will be displayed.
NOTE: The two codes are user defined and give access to the parameters
which can be viewed and modified (as detailed in Table 13.1)
Menu A: Heating
A 1
S t
e p
This parameter activates the step modulation feature. Step modulation holds
the firing of the appliance at defined rates for pre-defied time periods. A
value of 0 disables this function, a value of 1 enables it.
Menu A: Heating
A 2
H E
s
This parameter sets the CH offset value. This is the value above the setpoint
temperature that the boiler can reach before shutting down.
Menu A: Heating
A 3
H E
s
2 5
This parameter sets the CH proportional band. This is the temperature range
below the setpoint temperature in which the boiler will modulate.
Menu A: Heating
A 4
H E
s c D i
1 0
This parameter sets the CH differential. This is the temperature below the offset
temperature which the boiler must reach before the firing sequence will restart.
Menu A: Heating
A 5
H E
s
6 0
This parameter sets the CH integration time. This is the time period over which
an average temperature is recorded in order to determine the firing rate.
Menu A: Heating
A 6
H E
c O f
This parameter sets the Cascade CH offset value. This is the value above the
setpoint temperature that each boiler in the cascade boiler can reach before
shutting down.
> > > Continued on next page < < <
FIGURE 13.1
SETTING PARAMETERS
- B Y
o
1 2 3
.
4
C )
m o d u
l
1
o
f
f
1 3
4
o C
P r b 1 3
o C
f
1 3
o C
l n
t
1 3
S e c
f
3
4
o C
67
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