Buderus Logamax plus GB162-80 kW Installation Instructions Manual page 36

8
Operation
Service Mode menu
Step 1 Shows currently measured space heating water temperature in °F.
readings", page 57.
Step 2 To activate service mode 1
Press and hold the d button for more than 2 but not longer than 5 seconds.
Step 3 The non-flashing dot is shown in the right-hand bottom corner of the display shows the boiler is now in
Flue gas test mode.
Step 4 To activate service mode 2
Simultaneously press and hold the d+ e buttons for more than 2 seconds.
Step 5 Display shows the maximum capacity setting during heating mode in %.
Display settings", page 58.
In this case:
You can now adjust the boiler performance to partial load, i.e. to check the gas/air ratio or the ionization
current.
Step 6 Press and hold the c button until the display shows:
Display setting: with a 80-kW boiler and
Minimum capacity setting during heating mode in %.
The boiler will reduce its performance to 25% or 20% respectively within a couple of seconds.
The space heating water temperature set on the BC10 basic controller (control panel) applies now.
Check the gas/air ratio or the ionization current and if necessary set the gas/air ratio according to paragraph
9.9 or paragraph 9.11
Step 7 Press the e button.
Step 8 This parameter shows the pump run-over time in minutes that starts when the heating mode has ended.
paragraph 13.4 "BC10 Display settings", page 58.
Step 9 Press the e button.
Step 10 This parameter indicates the DHW mode status setting.
page 58.
Step 11 Press the e button.
Step 12 Shows currently measured space heating water temperature in °F.
readings", page 57.
Step 13 Press the e button.
Step 14 Shows currently measured system pressure in psi.
page 57.
Step 15 Press the e button.
Step 16 Display code: Operating phase: The boiler is in service mode.
codes", page 58.
Step 17 After 30 minutes or after a power interruption the flue gas test ends automatically. To end manually press and
hold the d button for more than 2 seconds until the dot disappears.
Step 18 The boiler input rating drops to the preset capacity.
Tab. 13 Service mode
36
st
step:
nd
step:
= 100%. Service mode has been activated.
Logamax plus GB162- 80/100 kW - Subject to modifications resulting from technical improvements!
paragraph 13.3 "BC10 Display
with a 100-kW boiler.
paragraph 13.4 "BC10 Display settings", page 58
paragraph 13.4 "BC10 Display settings",
paragraph 13.3 "BC10 Display
paragraph 13.3 "BC10 Display readings",
paragraph 13.5 "BC10 Display
table 15, "Settings", page 37.
paragraph 13.4 "BC10