Hamworthy Sherborne SE64he, Installation, Commissioning And Servicing Instructions

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HAMWORTHY HEATING LTD
24
SHERBORNE 500001167/E
8.6.4 - FUNCTIONS
8.6.4.1 - Chimney Sweep mode
This mode is intended for use when making measurements on the boiler. When the chimney sweep mode is
activated, the boiler will deliver maximum output until the limit thermostat cuts out.
This mode is enabled by pressing both buttons for between 3-6 seconds.
On the display, the upper arrow of the
maintenance symbol flashes & the currently selected temperature appears.
To leave this mode press the mode button.
8.6.4.2 - Controller Stop mode
The controller stop mode enables the boiler’s heat output to be adjusted manually in heating mode by pressing
both buttons simultaneously for more than 6 seconds.
On the display, the lower arrow of the maintenance symbol flashes & the currently selected temperature appears
& the display shows the adjusted relative boiler output.
Minimum & maximum output can be directly selected by pressing the arrow buttons
To leave this mode press the mode button
8.6.4.3 - Time of day function
To ensure that this function operates, the time of day & time settings must be correctly set. Refer to section 8.3.2
for an explanation of how to set this.
Each time the + or - button is pressed during the time setting, the seconds are set to 0. The clock continues to
run while making the setting.
To leave this mode press the mode button
8.7.10 - Display of operating phases
The operating phases according to the controls sequence diagram can be displayed. Assignment of the display
code & the LMU...’s phase designation is as follows:
Note: -If operating phases are passed very quickly or skipped, the relevant display code will not appear.
Display Meaning Internal Operating Phases of the LMU ….
00 Standby (no demand for heat) PH STANDBY
01 Prevention of startup PH_STARTVER
02 Fan runup PH_THL_1 & PH_THL1_2
03 Pre-purging PH_TV
04 Waiting time PH_TBRE, PH_TW1 & PH_TW2
05 Pre-ignition time PH_TVZ
06 Safety time, constant PH_TSA1 & PH_TSA2_1
07 Safety time, variable PH_TSA1_2 & PH_TSA2_2
10 Heating operation PH_TI, PH_MODULATION & Heating mode
11 DHW operation PH_TI, PH_MODULATION & DHW mode
12 Parallel operation of space heating & DHW operation PH_TI, PH MODULATION, Htg & DHW MODE
20 Post-purging with last control of operation PH_THL2_1 & PH_TN_1
21 Post-purging with control of pre-purging PH_THL2_2 & PH_TN_2
22 Home run PH_TNB, PH_TLO & PH_TNN
99 Lockout position (display of the current error code) PH_STOER