4
Start-up and operation
Logano G201 - Subject to technical modifications.
12
Fig. 5
Setting the firing controller
1
Red marking (70 °C/158 ° F)
4.3
Setting the firing controller
V
Set the firing controller to the red marking (70 °C/
158 °F) (
Æ
Fig. 5) or depending on the outdoor tem-
perature according to Tab. 4.
V
Heat up the boiler (
Æ
Chapter 4.4, page 13).
V
Adjust the tension of the chain by setting the lever (or
shortening the chain) so that the air vent is closed at
70 °C/158 °F boiler water temperature up to a mini-
mum degree (0.2 inches) and the chain hangs some-
what loosely.
This prevents sulfur gas formation when the boiler
water temperature has been reached.
CAUTION:
Risk of system damage due to
frequent topping up!
If you have to top up the heating water fre-
quently, the heating system may suffer dam-
age from corrosion or scaling, depending on
the water quality.
V
Ask your heating contractor if the local wa-
ter can be used untreated or whether it
needs to be treated.
V
Notify your heating contractor if you find
you need to top up your heating system
frequently.
Operating pressure
Design operating pressure
(optimum setting)
_____________ psi
Maximum heating system
operating pressure
(standard = 30 psi)
_____________ psi
Tab. 3
Operating pressure (entered by system installer)
If the air vent is closed completely, there is no
complete combustion. Tar accumulates on
the heating surfaces, which requires more
cleaning effort.
Outdoor
tempera-
ture in °F
Flow tempera-
ture in °F
Setting
firing control-
ler in °C
5
194
90
14
176
80
28
158
70
32
149
65
41
140
60
50
113
45
60
104
40
Tab. 4
Settings for the firing controller depending on
the outdoor temperature
