Set Appliance State:
CH Demand
Boiler CH thermostat to MAX
Gas On
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Observation:
Allow the central heating system to reach full operating temperature.
Does the system pressure remain stable or does it rise excessively?
Note:
1. To change the display to show current pressure as a figure instead of a graduated bar press the top right hand display
button twice. (3 times if the display is in sleep mode i.e. not backlit blue)
2. There is also a manual pressure gauge inside the appliance located to the right hand side of the pump assembly.
Does the system pressure remain stable or does it rise excessively?
Note:
1. To change the display to show current pressure as a figure instead of a graduated bar press the top right hand display
button twice. (3 times if the display is in sleep mode i.e. not backlit blue)
2. There is also a manual pressure gauge inside the appliance located to the right hand side of the pump assembly.
 lower section.gif)
 dis showing pressure.gif)
 pressure guage.gif)
Isolate as per TOPs P4
and refit as necessary