Inspections And Maintenance; Instructions For Inspection And Maintenance - Immergas ARES 440 TEC ERP Instructions And Warnings

4
INSPECTIONS AND
MAINTENANCE
4.1 INSTRUCTIONS FOR INSPECTION
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.
For this reason we recommend stipulating an inspection or maintenance
contract.
Inspection is required to determine the effective state of an appliance
and compare it with the optimal state. This is carried out through
measuring, checking, observing.
Maintenance is required to eliminate any deviation of the effective state
from the optimal state. This is usually carried out through cleaning,
setting and possibly replacing single parts that are subject to wear.
These maintenance intervals are set forth by a specialist based on the
certified state of the appliance at the time of inspection.
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 7775
40 5363 5152
50 3627 3491
60 2504 2415
70
1762 1703
80
1263 1222
90 920 892
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
At 90°C, the nominal resistance is 920 Ohm
1 2 3
29607 28161
18189 17351
11493 10994
7454 7147
4951 4758
3362 3238
2330 2249
1646 1592
1183 1146
865 839

Inspections and maintenance

Instructions for inspection and maintenance.

Only original 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.
Before proceeding with maintenance operations, always carry out the
procedures described below:
- Turn off the mains switch.
- Separate the appliance from the electrical network using a separation
device, with a contact opening of at least 3 mm (for ex. safety devices
or power switches), and make sure it cannot be accidentally re-
connected.
- 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.
Once the maintenance work has been finished, always carry out the
operations listed below:
- If necessary, open the heating flow and return
- Relieve and, if necessary, restore the pressure in the heating system.
- Open the gas cut-off valve.
- Re-connect the appliance to the electrical network and engage the
mains switch.
- Make sure the appliance is water-tight, on the gas side and the water
side.
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
41
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