Thermia Atria Optimum, Installation Manual

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10.5.3 Test the brine pump
1. Start the brine pump by setting the parameter BRINE PUMP to a value between 30% and 100%. (1 at constant speed circulation
pump).
2. Check that the brine pump is running by:
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listening
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putting a hand on the pump
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checking that the level in the bleed and expansion vessel (111) is stable (Brine/Water). If the level is not stable there is air in the
system.
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listen for air
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If a constant speed circulation pump does not start automatically, perform manual start as below.
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If there is air in the brine system, bleed, see chapter Filling and bleeding the brine system.
3. Stop the brine pump by setting the parameter BRINE PUMP to 0.
10.5.4 Test the valve for hot water production
Reversing valve
1. Activate the reversing valve by setting the parameter REV.V. HOT WATER to 1.
2. Check that the indicator on the exchange valve's upper side changes position.
3. Stop the test by setting the parameter REV.V. HOT WATER to 0.
Shunt valve (HGW)
1. Activate the shunt valve by setting the parameter HGW-SHUNT to + (plus).
2. Check that the wheel on the shunt valve is turning.
3. Stop the test by setting the parameter HGW-SHUNT to 0.
Installation Guide Domestic heat pumps
Thermia Värmepumpar VMGFP202
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