Figure 8.6.8 User Parameter Adjustments - Hamworthy MILBORNE381 Series Design Installation, Commissioning And Operating Instructions

SYSTEM STATUS
No demand of heat and water
(the right digits display the flow temperature T1
e.g. T1=30°C)
Request from circuit no. 1 or from the 1st and 2nd
circuit at the same time.
(the right digits display the flow Temperature T1
e.g. T1=80°C)
Request from water circuit or simultaneous circuit
requests.
(the right digits display the Flow Temperature T1=80°C)
The dot after the no. 1 left digit is flashing.
Request from no.2 circuit.
(the right digits display the Flow Temperature T1
e.g. T1=80°C)
The external probe is not connected, the compensated
function has been selected (parameters 14 & 22). In
this configuration the pump will run continuously. Set
parameters 14 & 22 to (0) - constant temperature.
Figure 8.6.8
8.8 Changing Operating Temperature Set-Points.
Refer to figure 8.7.1. If no variations occur within 10secs after pressing S2 at step 3, (because the desired value
corresponds with the set value) the display will be restored to the mode display.
If after pressing + and - , at step 4, no operation is carried out, after 1 minute the display shall be restored to the
mode display. The new selected value shall not be restored.
8.9 Monitor Mode
Press S2, to enter into the Monitor mode and display the running status of each single boiler module (from
address 1 to 60) - see figure 8.8.1.
Step
1. Mode display, there is no demand from any
circuit with the flow temperature at 80°C
2. Press S3 to enter into the setting display, press
it again and set 6 on the first digit to display the
current Low Temp. circuit set-point - 50°C.
3. Press S2 (set/esc) to select the chosen value.
The two right LED digits will flash.
4. Press S5 (-) to change the setpoint to the
desired value - 40°C. The two right LED digits
will continue to flash.
5. Press S6 (Prog/OK) to store the new value. The
two right LED digits will stop flashing. After 3
secs., the display will return to the mode display
with the new set value.
Figure 8.7.1 - procedure for adjusting Low Temperature Heating circuit
HAMWORTHY HEATING LTD
Procedures Button Required
38
MILBORNE
DISPLAY
Display
500001130/J