Immergas 3.027746, Instruction And Recomendation Booklet

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11
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
3.2 YEARLY CONTROL AND
MAINTENANCE OF THE STORAGE
UNIT.
The following checks and maintenance should
be performed at least once a year.
- Visually check for water leaks or oxidation
from/on connections;
- Check visually that the safety and control
devices have not been tampered with and in
particular:
- adjustment probes;
- expansion vessel;
- domestic hot water side safety valve;
- Check integrity of the storage tank sacrificial
anodes;
- In the case of particularly hard water, decalci-
fication of the storage tank is recommended
at least once a year. To perform this operation
the tank must be emptied through the draining
valve and then remove the flange in order to
access the inside and use a plastic or wooden
spatula to remove the most resistant deposits
and then clean and rinse with a jet of water.
- During the cleaning phase pay particular at-
tention not to damage the internal protection
of the tank.
3.3 STORAGE UNIT TECHNICAL DATA.
INOXSTOR 200 INOXSTOR 300 INOXSTOR 500
Hydraulic performances
Storage tank unit capacity l 202,6 279 480,3
Domestic hot water side maximum pressure bar 8 8 8
DHW side maximum temperature °C 99 99 99
Maximum coil pressure bar 6 6 6
Central heating side maximum temperature °C 90 90 90
Empty storage tank unit weight kg 60,7 75,0 101,0
Full storage tank unit weight kg 274,9 366,1 598,9
Heat dispersion kW h / 24 h 1,95 2,18 2,41
Psbsol W/K 1,81 2,02 2,23
Upper coil
Exchange surface m
2
0,72 0,8 1,23
Coil capacity l 4,1 4,6 7,0
Exchange power kW 32,0 32,0 32,0
Primary fluid flow rate l/h 1630 1655 1845
Primary fluid T delta °C 17 17 14,9
Useful reintegration power kW 26,3 26,3 26,3
Lower coil
Exchange surface m
2
1,3 1,31 1,84
Coil capacity l 7,5 7,5 10,6
Exchange power kW 52,0 52,0 52,0
Primary fluid flow rate l/h 2950 3080 3057
Primary fluid T delta °C 15 14,5 14,6
Useful reintegration power kW 34,3 34,3 34,3
- On completion of the operation, re-mount the
flange by applying the gasket (replace it with a
new one if it is damaged), close the draining
valve and fill the tank, checking that there are
no leaks from the flange or the valve.