TECHNICAL MANUAL
Speedster
page 50
Table 4 lists the parameter values set for your Speedster with display in degrees
Fahrenheit.
press
alternating display
parameter
value
P > 2s
AL 1
127.2
press
alternating display
P
AL 2
275.5
parameter
value
P
dF
0.1
or ->
P > 2s
C111
001
P
Return to: Sp
P
C112
4
P
C113
8
P
C114
8
P
C115
0
P
C116
0
P
C117
0
P
C118
0
P
C120
0
P
OFFS
0.0
P
HYS1
0.3
P
HYS2
0.3
t1
0
t2
0
ALLO
0.0
ALHI
284.0
tr
4
P
Return to: AL 1
Table 4. Shows scrolling sequence of steam boiler controller and Speedster value settings
of the individual parameters (in degrees Fahrenheit). Highlighted are the values to
change when switching to degrees Celsius.
Note!
The controller will stop functioning when you enter a setpoint (AL 2) above the upper
security temperature level (ALHI) and leave the programming phase without changing
the upper security temperature level. For this reason, when you change from Centigrade
to Fahrenheit, change the value for AL 2
after
you have changed the value for ALHI.
Resetting the controller
When your controller does not respond to unlocking or programming you may reset the
controller to the JUMO manufacturer settings by first switching the Speedster “off”. Then,
while pressing both the P and
˄
keys on the controller simultaneously, switch the
Speedster “on”.
Note!
When the controller is reset, all parameter values will return to the JUMO manufacturer
setting which means that you have to re-enter all Speedster settings by hand, also the
settings in the sub-menu that can be entered when the display shows “dF”.
For more information on the steam/hot water temperature controller we refer to the
operating instructions of the JUMO di 32 B 701530 which were included in your shipment.