Service Mode Menu - Buderus Logamax plus GB162-80 kW Service Instructions Manual

4 Operation
section 21

Service Mode menu

[\/7/5|
Step 1 Display reading: Currently measured heating system supply temperature in °F.
See also section 27 "Display readings", page 21.
Step 2 Activate service mode?
Step 3 To activate service mode, step 1:
 Press and hold the "
[\/7/5]
Step 4 Display reading: Currently measured heating system supply temperature in °F.
As soon as a non
-
mode at 100 % performance for a maximum of 30 minutes. The maximum heating system supply temperature set
on the control panel now applies. DHW mode is not possible during service mode operation.
Step 5 To activate service mode, step 2:
 Press and hold the "
[l/?/?]
Step 6 Display setting: Maximum capacity setting during heating mode as a %.
See also section 28 "Display settings", page 21. In this case:
Service mode has been activated. You can now temporarily lower the boiler performance to partial load to check -
and if relevant adjust- the gas/air ratio or the ionization current.
Step 7  Press and hold the "
[l/2/0]
with a 100 kW boiler.
[l/2/0] [l/2/5]
Step 8 or Display setting: Minimum capacity setting during service mode as a %.
See also section 28 "Display settings", page 21.
Within a couple of seconds the boiler will be modulated back to 20 % of its capacity in case of an 80 kW boiler and
25 % in case of a 100 kW boiler. The maximum heating system supply temperature set on the control panel now
applies (section 1, [4]). Check the gas/air ratio or the ionization current and if necessary set the gas/air ratio
according to section section 119 "Measuring and adjusting the gas/air ratio", page 84 or section 104 "Measure the
ionization current", page 76.
e
Step 9  Press the " " button.
[f/\5]
Step 10 Display setting: required pump run-over time after the end of the heating operation in minutes.
See also section 28 "Display settings", page 21.
e
Step 11  Press the " " button.
[c/\1]
Step 12 Display setting: required DHW mode position (on/off).
This setting has priority over -for example- a possible DHW mode (On/Off) setting on a room thermostat.
See also section 28 "Display settings", page 21.
e
Step 13  Press the " " button.
[\/7/5]
Step 14 Display reading: Currently measured heating system supply temperature in °F.
See also section 27 "Display readings", page 21.
e
Step 15  Press the " " button.
[p/2/2|
Step 16 Display reading: Currently measured heating system water pressure in PSI.
See also section 27 "Display readings", page 21.
e
Step 17  Press the " " button.
[-/a/\]
Step 18 Operating code: The boiler is in service mode.
See also section 29 "Display codes and other symptoms", page 21, and further.
e
Step 19  Press the " " button.
[\/7/5]
Step 20 Display reading: Currently measured heating system supply temperature in °F.
See also section 27 "Display readings", page 21.
Step 21 Have 30 minutes passed or has the main voltage been interrupted?
Step 22 Service mode is deactivated.
Step 23 Deactivate service mode?
Step 24 To deactivate the service mode:
 Press and hold the "
Step 25 The boiler performance is then reduced according to the settings made in the "Settings" menu in section 23,
page 15.
14
d
" button for more than 2 but not longer than 5 seconds.
flashing dot is shown in the bottom right-hand corner of the display, the boiler will run in heating
d e
"+ " " buttons for more than 2 seconds.
c
" button until the display shows for boilers at sea level
d
" button for more than 2 seconds until the dot disappears.
Logamax plus GB162-80 kW/100 kW - Subject to modifications resulting from technical improvements!
[l/?/?]
= 100 %
[l/2/5]
with a 80 kW boiler or
→
Yes: Step 3
→
No: Step 1
→
Yes: Step 22
→
No: Step 23
→
Step 25
→
Yes: Step 24
→
No: Step 15
→
Step 1