COSMOGAS MYDENS, Инструкция по установке, эксплуатации и обслуживанию

Страница: 39 / 76

39 MYDENS
COSMOGAS
Figure 6.15 - Corresponding values to introduce
into the parameter
2002 to obtain the desired
power necessary in central heating mode
6 - OPERATING
Figure 6.16 - domestic hot water flow rate selector
A
020002.01.016
BOILER MODEL
Power
necessary
(kW)
15 24 34
35
33
94
31 88
29 82
27 76
25 98 70
23 89 64
21 80 58
19 71 52
17 62 46
15 53 40
13 44 44 34
11 35 35 28
9 26 26 22
7 17 17 16
5 8 8 10
ATTENTION !!! If during forcing, the power
supplied by the boiler is much higher than the
power absorbed by the plant, the boiler switches off
continuously to reach the maximum temperature
allowed (93°C). To remedy this problem the heating
power must be set at the effective plant requirement, as
laid down in chapter 6.9 and the CO2 analysis test or
combustion efficiency test must be carried out, setting
parameter
2010
previously referred to at the
rEg.
value
6.9 - Adjusting the power in central
heating mode (Range Rated)
This appliance is designed and type-approved to adapt the
maximum heating power to the effective necessity of the plant
as per calculation. To do this and to use the boiler’s potentiality
to its best, it is recommended to set the maximum power in
central heating mode at the effective requirement of the plant.
Operate as follows:
1.- press the
and RESET keys simultaneously
for more than 5 seconds to enter the “installer” menu,
confirmed by the appearance of the icon on the
display.
4.- using the and keys, access the
parameter
2002
;
5.- press the RESET key to enter the parameter and using the
and keys modify the value corresponding
to the power required by the plant, according to the table
in Figure 6.15.
6.- press the RESET key to confirm the modification.
7.- hold the RESET key down for 5 seconds to exit the
“installer” menu.
6.10 - Adjusting the domestic
hot water flow rate
The boiler is supplied with a domestic hot water maximum
flow rate adjuster. However, if the boiler is installed in a
geographical area where the temperature of the cold water
is very low, the flow rate of domestic hot water that passes
inside the boiler may have to be reduced. It is therefore
good practice to perform this adjustment:
1.- switch the boiler on;
2.- using the and keys, adjust the
temperature of the domestic hot water to 48 - 50°C;
3.- open the hot water cock completely.
In the case of a single lever mixer, the position must be
completely on “HOT”;
4.- wait 3 minutes for the temperature to stabilise;
5 - if the water temperatures too cold, the flow rate must
be reduced via the selector “A” in figure 6.16, until the
desired temperature is reached.