Carrying Out Additional Tasks; Carrying Out A Flue Gas Test; Selecting Partial Load Operation; Gas Testing) - Buderus Logamax plus GB142-24 Installation Instructions Manual

Displays (examples) Values
[a/1/2|
A00 ... A99
[8/1/6|
p
number > 800
[-/h/\|
p
[1/4/0|
p
number 0 ... 199
[p/2/1|
q
> P15
[\/-/\|
(flashing)
Table 7 Possible status displays
1)
Standard display for this operating condition. This display appears after 5 minutes if no button is pressed.
2)
The temperature is higher as 199° when 199 is blinking in the display
9.2

Carrying out additional tasks

9.2.1

Carrying out a flue gas test

d
The "Chimney Sweep" button is used for the flue gas test.
The heating control system works at the maximum flow temperature for
30 minutes. This is set on the BC10 basic controller using the "maximum
heater temperature" knob. During flue gas testing the decimal point
lights up in the display.
▶ Press and hold the "Chimney Sweep"
the decimal point is displayed.
▶ Carry out the flue gas test.
d
▶ Press the "Chimney Sweep"
9.2.2 Selecting partial load operation (e. g. during flue gas
testing)
You can operate the boiler at a reduced boiler capacity during flue gas
testing. This reduction is only effective for the duration of the flue gas
test.
d
▶ Press the "Chimney Sweep"
decimal point shows in the status display. This will switch on the flue
gas test.
▶ Press and hold the "Chimney Sweep"
(for approx. 5 seconds) to enter the partial load mode.
▶ Press the "Reset" c button to reduce the boiler capacity
percentage.
Example: boiler capacity reduced to 50 % (= [l/5/0]) of the rated boiler
capacity.
d
▶ Press the "Chimney Sweep"
capacity percentage.
▶ When test is completed, press the "Service"
temperature indication is displayed.
d
▶ Press the "Chimney Sweep"
cleared from the display.
9.2.3

Switching the heating system to manual mode

In manual mode the heating system can be operated independently of an
external control unit. The boiler is operated with the heating system
temperature set on the right knob serving as the target value.
A blinking decimal point is displayed while manual mode is active.
d
▶ Press the "Chimney Sweep"
until the decimal point in the status display flashes.
▶ Turn the knob i to set the maximum space heating system
temperature.
d
▶ Press the "Chimney Sweep"
Logamax plus GB142-24/30/45/60 – 6720820104 (2017/05)
Meaning
Service code
Error code
Remedy the error using the service section in
this manual
Current boiler water temperature (in °F)
Current system pressure (in psi)
Fault
No communication between BC10 and
automatic gas burner.
d
button (< 5 seconds) until
button to interrupt the flue gas test.
button (max. 2 seconds) until the
d e
and "Service" buttons
button to increase the boiler
e
button until the
button until the decimal point is
button (for more than 5 seconds)
button to exit manual mode.
Operating condition/Remedy
System faults
System faults are faults in the heating system that do
not affect the burner number > 800 operation.
Fault
Remedy the error using the service section in this
manual.
▶ Check the connections to both devices.
▶ Check the communication lines.
WARNING:
▶ Turn the "space heating system temperature"
knob to limit the heating system temperature to the
permissible flow temperature for the floor heating
circuit (e. g. 86 – 104 °F = 30 – 40 °C), so pipes will
not overheat.
DANGER:
The heating system can freeze up if a power failure
occurs or after switching off the power supply, because
manual operation then is no longer active.
▶ You must re-activate manual operation after
switching on the system to keep the heating system
operational (especially if there is a risk of frost).
9.3

Configuring the boiler

9.3.1

Adjusting the heating capacity

Setting the heating capacity depending on the maximum heat
requirement ( table 8).
Regu- Heating capacity (±5 %, sea level
lator
boiler cap. boiler cap.
settin
24 kW 30 kW
g in %
kW btu kW
L30
7.2 24,566 8.7 29,684 13.5 46,062 18.0 61,542
L40
9.6 32,755 11.7 39,920 18.0 61,416 24.0 82,080
L50
12.0 40,944 14.8 50,498 24.5 83,619 30.0 102,630
L60
14.4 49,133 17.8 60,734 27.0 92,178 36.0 123,192
L70
16.8 57,322 20.9 71,311 31.5 107,573 42.0 143,766
L80
19.2 65,510 23.9 81,547 36.0 122,976 48.0 164,352
L90
21.6 73,699 27.0 92,124 40.5 138,389 54.0 184,950
L-- 24.0 81,888 30.0 102,360 45.0 153,810 60.0 205,560
Table 8 Heating capacity
1)
For use at high altitude the capacity decreases with 3% for every 1000 feet.
▶ Press and hold the "Chimney Sweep"
until an "L" with a double-digit value (e. g. L80) or an "L" followed by
two dashes (L - -) is displayed. Factory setting "L- -"(= [l/-/-|).
▶ Set the heating capacity by pressing the "Chimney Sweep"
button (higher values) or the "Reset"
e
▶ Press the "Service" button to confirm the setting.
BC10 basic controller
i
1)
)
boiler cap. boiler cap.
45 kW 60 kW
btu kW btu kW
d e
and "Service" buttons
d
c
button (lower values).
9
btu
27