Hamworthy F40V Installation, Commissioning And Operating Instructions page 36

8.2.8.2 - Controller Stop function
The controller stop function enables the boiler's heat output to be adjusted manually in heating mode by
pressing both buttons
On the display, both arrows of the maintenance function flash and the currently selected temperature
appears and the display shows the adjusted relative boiler output.
The function serves for making measurements on the boiler and allows the boiler output to be increased /
decreased by pressing buttons
Minimum and maximum output can be directly selected by pressing the line selection buttons
Note: - If the controller stop function is triggered via PC tool ACS420, the current setpoint of burner output will
appear on the display, but the settings are locked.
To close the function, press button
8.2.8.3 - Time of day function
To ensure that this function operates, the time of day and time settings must be correctly set. Refer to section,
Parameter settings for Enduser, to setup the program.
Note:- each time button
continues to run while making the setting.
8.2.9 - Heating circuit operating modes
The control provides 4 different heating circuit operating modes for LMU... heating circuit 1. They can be
directly selected depending on the requirements - see figure 8.2.9
The operating modes are selected by pressing button
On the LCD, a pointer below the respective symbol points to the selected heating circuit operating mode.
8.2.10 - Error code display
In the event of a nonvolatile LMU... lockout position, fault is continually displayed. In addition, the diagnostic
code on the display flashes (refer to figure 8.2.4 and table 8.2.10).
To cancel the lockout position, press lockout reset button
8.2.11 - Display of operating phases (display level A4)
The operating phases according to the LMU...'s sequence diagram can be displayed (display level A4 press
Info button 3 times).
Assignment of the display code and the LMU...'s phase designation is as shown in figure 8.3.11
Operating mode
Figure 8.2.9
HAMWORTHY HEATING LTD
simultaneously for more than 6 seconds.
.
is pressed during the time setting, the seconds are set to 0 and the clock
Designation
Automatic operation
Standby
Continuous 'Normal'
operation
Continuous 'Reduced'
operation
.
for at least 2 seconds.
Effect of selection
Heating circuit 1 (HC1) according to time switch program 1
Heating circuit 1 switched off
Frost protection functions active
Heating circuit 1 continuously on according to the adjusted
nominal room temperature setpoint or heating circuit setpoint
Reduced room temperature set point or heating circuit frost
protection setpoint
30
FLEET V series 500001213/G