COSMOGAS MYDENS 100T, Installation, Use & Maintenance Manual

Page: 55 / 94

5 5 60T - 280T
COSMOGAS
16 - USE
Figure 16-1 - Control panel
FIGURE 16-1 KEY
A - Key to reduce water temperature
B - Multifunction key: Key to Reset and access the “user
menu” and the “installer menu”
C - Key to increase water temperature
D - Burner state
Icon off = burner off
Icon on = burner on
E - State of heating or domestic service
Icon off = Service off
Icon on = Service active but not working
Flashing icon = Service active and working
F - State of domestic service with accumulation:
Icon off = Service off
Icon on = Service active but not working
Flashing icon = Service active and working
G - “Installer menu” access icon
H - Unit of measurement of the displayed pressure
L - Burner unit indicator

= Burner 1 (master)
‚
= Burner 2
ƒ
= Burner 3
„
= Burner 4
M - Water pressure or indicator of the different parameters
in the various menus
N - Heating or domestic hot water temperature or indicator
of the values assumed by the various parameters
O - Unit of measurement of the displayed temperature
P - Heating service adjusted by the external probe
R - Key to increase the temperature of the domestic hot
water with storage tank and change the parameter
values
S - Key to reduce the temperature of the domestic hot water
with storage tank and change the parameter values
T - on/off switch
16.1 - Checking water pressure
16.1.1 - Checking boiler water pressure
If the pressure inside the heating circuit drops below 0,5
bar, display “N” in figure 16-1 displays
Err 59
to
show that correct pressure needs to be restored. To do so,
proceed as follows:
1.- open the device provided for by the installed upstream
of the appliance to load the system;
2.- check the pressure on view “M” in figure 16-1; it must
reach a pressure of 1,5 bar (the
Err 59
warning
must disappear);
3.- close the filling device provided for by the installer
upstream of the appliance.
ATTENTION !!! During normal operation the
device provided for by the installer upstream of the
appliance to load the system must always remain in the
closed position.
If, over time, the pressure goes down, restore the correct
value. In the first month of operation, it might be necessary
to repeat this operation several times to remove any air
bubbles in the system.
T
020010.01.023