Burstner A 650, Инструкция по эксплуатации

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A-Modell - 11/12 - Ausgabe 09/11 - 2096161 - BUE-0036-10EN
Maintenance
12
12.6.1 Checking the fluid level
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Switch off the hot-water heater and allow it to cool down.
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Check if the fluid level is between the marks "MIN" (Fig. 219,3) and "MAX"
(Fig. 219,2) on the compensator reservoir (Fig. 219).
12.6.2 Topping up heating fluid
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Position the vehicle horizontally. This prevents the formation of bubbles.
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Switch off the hot-water heater and allow it to cool down.
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Unscrew or pull off the panel.
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Open the rotary lid (Fig. 219,1) on the compensator reservoir.
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Remove cover.
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Check anti-freeze with an anti-freeze hydrometer. The frost protection con-
tent must be 40 % or correspond to a frost protection of -25 °C.
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Fill water frost protection mixture slowly into the compensator reservoir.
12.6.3 Bleeding the heating system
The bleeding valves are built in nearby the radiators.
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Switch off the hot-water heater and allow it to cool down.
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Open bleeding valve (Fig. 220,1) and leave open until no more air escapes.
Fig. 219 Compensator reservoir hot-
water heater
Z
The optimum fluid level is reached when the fluid in the compensator res-
ervoir is 1 cm above the "MIN" mark when it is cooled down.
Fig. 220 Bleeding valve of hot-water
heater