for this controller. Quite squealing or delayed operation of the valve after disconnection of its
connector is a natural behavior.
3.3. RESET
Hold the
button depressed for a few seconds – the controller will restart. At the moment
when the logo screen appears, press the
button, shortly after instead of main screen
the menu with a list of operations will appear. With the
button move to “reset” and press
the
button. The controller will restart with factory settings. This function does not “cure”
the controller wonderfully and it is not a solution for all the problems with its operation that
usually might arise from not understanding its principal of work and wrong settings. Instead,
it causes necessity of resetting all the parameters.
3.4. ADDITIONAL SETTINGS
Hold the
button depressed for a few seconds – the controller will restart. At the moment
when the logo screen appears, press the
button, shortly after instead of main screen
the menu with a list of operations will appear. With the
button move to “additional
settings” and press the
button, first parameters – display contrast – will come up.
Change the value with the
buttons, confirm the value and move to next parameter
with the
button. It is not possible to move back to previous parameter. To save the
changes move across all the parameters. The controller will restart.
3.4.1 DISPLAY SETTINGS
Here you can select the LCD screen contrast.
3.4.2 OUTPUT SETTINGS
Here you can select the LCD screen contrast.
LM TYPE
– specify the valve type (NO – normally open or NC – normally closed)
Dt
– parameter controlling the valve. The SKN controller controls the electrovalve in
sophisticated way, in order to reduce heating of the valve and make it possible to use valves
form a wide range of valves, which would not be suitable for direct operation with this
appliance (e.g. excessive coil power, operation voltage different then 12V). Correct value of
this parameter should be obtained testing the valve operation, available in the menu
“Input/Output test” (point 3.2).
Then you could define how the heaters will work.
G1 modulated, G2 continuous
– Heater connected to G2 output will operate continuously,
even if set at minimum power. Essential power adjustment will be done with G1 heater.
G1 and G2 modulated.
Both heaters will be turned On and Off at the same time.
G1/G1 power
– the controller shows absolute power in kilowatts (kW), not relative in
percents. Therefore, to obtain correct value it is necessary to enter nominal power of
particular heaters. Both the above ways of control have one common feature, the controller
realizes so called group control with a few seconds period. Contrary to phase control, it
eliminates the necessity to use expensive noise filters, ensures good quality of control,
however it may cause light dimming in pace of heaters operation. Therefore, it is
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Summary of Contents for SKN
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