Operating Instructions and Installation Instructions

ULTRAMAX PB 65 - 120
30 L290 ©MHS Boilers 13/12/2010
10.0 Commissioning cont
10.5 Description of Control Valve Stop Function (To place the boiler into commissioning mode)
The chimneysweeper function enables the commissioning of the boiler while in heating mode. It serves to
take measurements at the boiler, with the system being set to maximum heating output until the overheat
temperature thermostat is triggered. In order to enable the largest amount of heating output possible, the
chimneysweeper function over rides all external control and must not be left in this position.
The control valve stop function enables a manual setting of the boiler output during the heating mode. It
serves to take measurements at the boiler.
10.6 Trigger
Activate buttons longer than 6 sec.
The display flashes the control valve stop symbol.
The display shows the specified relative boiler output.
10.7 Function
Generate a forced signal to output heat.
Deactivates the PID and 2-point controller
Output of starting performance
10.8 Settings
Push the set buttons to increase/decrease the output in percentage steps
Push the line selector buttons to alternate between minimum and maximum output.
0% = minimum output (= 20% output)
100% = Maximum output