Special Parameter Mode - Navien NCB-150E Service Manual

4.4.11 Special Parameter mode

You can modify parameter settings for boiler operations, such as the space heating and DHW temperature ranges, in different operating
conditions. Follow the instructions below to access the Special Parameter mode and change the available settings.
CAUTION
Parameters must be set by a qualified professional with an extensive understanding of the boiler system. Setting parameters improperly
may lead to property damage or injury.
1. Press and hold the Diagnostic button for 5 seconds to enter the Special Parameter mode.
2. Press the + or – buttons at Special Parameter Mode. (refer to the table below)
Item
(1) Parameter Setting Mode
(2) Error Checking Mode
(3) Operation condition Setting Mode
3. Press the [MODE] Button once enters boiler to the currently displayed mode
4. Press the [RESET] button once returns the boiler to the Normal Operating Mode.
5. The boiler will automatically return to the Normal Operating Mode, if there is no input from the + or – button for 5 seconds.
(1) Parameter setting Mode
1. Press and hold the Diagnostic button for 5 seconds to enter the Special Parameter mode.
2. Press the + or – button to move to "1.PAR"(Parameter Setting mode), You will be asked to enter a password ("PASS" is displayed)
3. Press the Mode button and enter your 4-digit password. (Factory Default PASSWORD : 1234)
4. Use the + or – buttons to increase or decrease numbers and the Diagnostic button to move between digits.
5. When you are done, press the Mode button.
6. Press the + or – buttons to move to a parameter setting, and then press the Mode button to enter the Parameter Edit mode.
7. Press the + or – buttons to change the parameter value.
8. When you are done, press the Mode button to save the settings.
Description
Sets the Boiler parameters.
Used to test the normal operation of each device.
Used to test the operation condition of the boiler.
Display
System Details 47