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P/N 42-9452 8/08 Copyright Hydrotherm
KN USER’S CONTROL MANUAL
Menu item
Under . . .
Explanation
CHANGE PASSWORD
ADVANCED SETUP
PASSWORD
Use to set/change a password.
BAUD
ADVANCED SETUP
COMMUNICATIONS
Not changeable. Always 19200.
PARITY
ADVANCED SETUP
COMMUNICATIONS
Select even or odd as required by communications port used.
MODEM
ADVANCED SETUP
COMMUNICATIONS
Select “YES” only if a modem is installed.
LOAD DEFAULTS
ADVANCED SETUP
Load the factory defaults when you want to be sure nothing has been changed or after you have
loaded new fi rmware.
Disconnect wires to the Heat Demand terminals and any other remote operation wiring. There
must be no call for heat during the process.
Navigate the control display to “LOAD DEFAULTS.’
To restore factory calibration settings or factory settings, section either of the options and
select “YES” for the prompt, “ARE YOUR SURE?”
1.
2.
3.
FIRMWARE VERSION
(UPDATE CONTROL?)
ADVANCED SETUP
SYSTEM
The fi rmware version in the control must match the version in this manual in order to ensure
accuracy of the installation/operation information. The control displays the fi rmware version
number when Setup is accessed. To update the control’s fi rmware, obtain a disk from
HydroTherm.
Disconnect wires to the Heat Demand terminals and any other remote operation wiring. There
must be no call for heat during the process.
Record all setup information for the application before proceeding.
Insert the Firmware Update Program disk into the computer. The program will start and show
an option screen.
Select “Install USB Drivers” to install the program onto the computer.
After the USB driver installation is complete, select “Install Firmware Update.”
Plug a USB cable into the control connection board, with the other connected to the computer.
THE CABLE MUST BE CONNECTED BEFORE STARTING THE FIRMWARE UPDATE PROGRAM.
Start the Firmware Update Program. It will auto detect the KN-2 control. The program dialog
box will automatically show the control’s comport number in the fi rst box.
The second box will show the fi rmware fi le number. Make sure this is the correct fi le. If not, use
the “. . .” box to the right of the fi le name to navigate to the correct fi le.
Navigate to the control Advanced menu, “System.”
Select “YES” to update the control.
NOTICE: The fi rmware must be downloaded now for the KN-2 control to function again.
Return to the computer. Select “UPDATE.” The computer program will ask to turn the boiler off ,
then back on.
After the power is cycled on the boiler, the download will start.
If the download is interrupted or fails, turn the boiler ON/OFF switch OFF, then ON. Restart
the fi rmware download program to start the download. (The boiler will appear unresponsive
during this time because it is wating for the download to take place.)
When the download is complete, the boiler will power cycle. The display should show STANDBY.
If the fi rmware does not load correctly, the display will remain blank. Try running the fi rmware
program again.
Check that the boiler performs properly.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
Table 8
Setup menus — parameter explanations (continued)
Control menus and adjustments
(continued)
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