M
aintenance Guide – Econordic heat pump
60
13. GAS COOLER - CLEANING
1)
Preparation of the pump and leakage test
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Fill the container with the required amount of water to maintain the pump
body submerged during operation
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Fasten the hose fittings on the heat exchanger to be decalcified
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Plug the power cable to a single-phase 230 V power supply
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Switch-on the pump and check the tightness of all connections on the heat-
exchanger and the pump
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If leaks are observed, check the integrity of the connections and/or change
the defective parts
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When the tightness is secured, switch-off the pump
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Carefully add the required amount of acid for descaling (refer to the
recommended concentration level specified in the product description)
2)
Descaling procedure
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Switch-on the pump
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During the operation, leave the lid of the container open to allow the
withdrawal of gases that are formed during decalcification
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Check that the height of the foam does not exceed the maximum fill line
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The descaling process can be considered complete when no more bubbles
is forming in the return hose and the liquid is still acidic (pH to be checked)
