Eco Heating Systems CB 105 HW, Installation, Service And User Manual

Page: 110 / 147

E93.1803.901 HW 111
Checking gas pressure
Check the gas pressure available at the gas connection pipe of the water heater. Use the pressure nipple [3] of
the gas safety valve for this measurement. Chapter 19.1.2 shows the position of the pressure nipple [3]
Min. and max. gas supply pressures:
Firing for the first time
After the commissioning of the water heater and the described previous actions, the water heater display will show
the following graph.
This screen is active during power up and will remain active until communication with the main Control has been
established.
After communication has been established one of the following Status overview screens appears:
The display describes:
•
The actual operation for hot water
•
The temperature setting
Type of Gas
p nom [inch W.C./ mbar] p min [ inch W.C./ mbar] p max [ inch W.C./ mbar]
Natural gas 7.0 / 17.4 3.5 / 8.7 10.5 / 26.2
Propane 11.0 / 27.4 8.0 / 19.9 13.0 / 32.4