Inspections And Maintenance; Instructions For Inspection And Maintenance - Alpha ARES 150 Tec Installation And Servicing Instructions

Inspections and maintenance

4
INSPECTIONS AND
MAINTENANCE
Inspections and maintenance carried out to state of
the art and at regular intervals, as well as the exclusive
use of original spare parts, are of primary importance
for smooth operation and to guarantee long boiler life.
Annual maintenance of the appliance is compulsory, in
accordance with Legislation in force.
Failure to carry out Inspections and Maintenance can
cause material and personal damage.
4.1 INSTRUCTIONS FOR INSPECTION
AND MAINTENANCE
Only original Alpha Innovation spare parts must be used to ensure
a long life for all of the functions of your appliance, and to avoid
changing the conditions of the approved standard product. When a
part needs to be replaced:
• Disconnect the appliance from the mains power supply and make
sure it cannot be reconnected accidentally.
• Shut the gas cut-off valve upstream of the boiler.
• If necessary, and based on the work that needs to be carried out, close
any cut-off valves on the heating flow and return, as well as the cold
water inlet valve.
After completing all maintenance operations, restore the boiler's
operation.
• Open the heating flow and return, as well as the cold water inlet valve
(if it was previously closed).
• Relieve and, if necessary, restore the pressure in the heating system,
until reaching pressure of 0.8/1.0 bar.
• Open the gas cut-off valve.
• Apply voltage to the boiler.
• Make sure the appliance is water-tight, on the gas side and the water side.
Table of resistance values based on the heating probe (SR) and the heating return probe (SRR) temperature
T°C 0
0 32755 31137
10
20003 19072
20 12571 12019
30 8112
40
5363
50 3627
60 2504
70
1762
80
1263
90
920
Relation between the temperature (°C) and nom. resistance (Ohm) of the heating probe SR and the heating return probe SRR.
Example: At 25°C, the nominal resistance is 10067 Ohm
1 2 3
29607 28161
18189 17351
11493 10994
7775 7454 7147
5152 4951 4758
3491 3362 3238
2415 2330 2249
1703 1646 1592
1222 1183 1146
892 865 839
OBLIGATION!
Wear protective gloves.
Scalding hazard!
Be careful during the maintenance operations.
4 5 6
26795 25502 24278
16557 15803 15088
10519 10067 9636
6855 6577 6311
4574 4398 4230
3119 3006 2897
2171 2096 2023
1539 1488 1440
1110 1075 1042
814 790 766
43
7 8 9
23121 22025 20987
14410 13765 13153
9227 8837 8466
6057 5815 5584
4069 3915 3768
2792 2692 2596
1954 1888 1824
1393 1348 1304
1010 979 949
744 722 701