Robur Caldaria 100.2 Condensing+ export, Инструкция по установке, эксплуатации и обслуживанию

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Heating engineer
24
3
Figure 3.7
Cap of the jolly valve on condensing block
Figure 3.8
Pressure gauge
3.3.2.2
Caldaria 55.1 and 100.2
Figure 3.9 p. 24
1. Slightly loosen the cap of the jolly valve located at the top of
the condensing block (detail 1, Figure 3.9 p. 24) to let the
air out from the highest point of the boiler.
2. Check that the air vent valves in the system are not blocked.
3. Connect a rubber hose to the drain tap (detail 2, Figure
3.9 p. 24).
4. Open the drain tap (detail 2, Figure 3.9 p. 24)
counterclockwise.
5. Open the system filling tap (to be provided on the system)
and let all the air out. Close it when the air is all out, replaced
by a constant water flow.
6. Operations 1 to 5 are to be carried out on both condensation
blocks of the Caldaria 100.2 model.
7. Pressurize the hydraulic system, making sure that the water
pressure indicated by the pressure gauge is not less than 1,5
bar.
8. Make sure that the unit is energized.
9. Send an operating request to the unit for a few seconds. The
circulating pump will be immediately activated.
10. Remove the request before the burner is activated. The cir-
culating pump will continue to circulate the water for the
post-circulation time.
11. If, after the above operations, a decrease in system water
pressure is observed, open again the system filling valve un-
til the system pressure reaches 1,5 bar.
12. Repeat items 7, 8, 9 until the pressure has stabilised (at least
1,5 bar).
13. After the operation, close the filling tap.
To start the circulation pump only, with the boiler
powered, press the button (Figure 6.1
p. 47):
the symbol will appear on the display; after a few
seconds turn off the boiler by pressing the
button again (the symbol will appear on the display).
The circulation pump will remain in operation for a few
minutes. Repeat the operation several times until the
pressure of the circuit remains unchanged.
Figure 3.9 Caldaria 55.1 and 100.2 air vent
1 Cap of the
jolly valve
2 Tap
2
1
3.3.3 System water characteristics
Responsibility of the user/operator/installer
The installer, operator and user must assure system wa-
ter quality (Table 3.2 p. 24). Failure to comply with the
manufacturer's guidelines may affect operation, integri-
ty and life of the appliance, voiding the warranty.
In order to avoid any scale or deposits on the primary
exchanger, the water in the system must be treated in ac-
cordance with the applicable standards. This treatment
is absolutely essential in cases where there are frequent
episodes of water supply or partial or total emptying of
the system.
The hardness of the filling and top-up water brings a certain
amount of calcium into the system. This is attached to the hot
parts including the heat exchanger, thus creating pressure loss-
es and thermal insulation on the active parts. This can lead to
damage.
If the filling and top-up water of the system is outside the values
indicated below, it must be softened and/or chemically treated.
Additives may also be added to keep the calcium in solution.
Hardness should be checked regularly and recorded.
The choice of the type of treatment must be made according to
the characteristics of the water to be treated, the type of plant
and the limits of purity required.
Adhere to the chemical-physical parameters in Table 3.2 p. 24
and the regulations on water treatment for residential and in-
dustrial heating systems.
Table 3.2
Chemical and physical parameters of water
Acidity 7 < pH < 8,5
Conductivity < 400 μS/cm (at 25°C)
Chlorides < 125 mg/l
Iron < 0,5 mg/l
Copper
< 0,1 mg/l