10.5.7 Testing the auxiliary heating power stages
1. Start the circulation pump by setting the parameter CIRC. PUMP to 100 (1 if fixed circulation pump).
2. Start the first auxiliary heating power stage by setting the parameter ADD.HEAT 1 to 1.
3. Check that the auxiliary heater step works by exiting the MANUAL TEST menu and entering the INFORMATION -> TEMPERATURE ->
SUPPLY LINE menu and check that the temperature rises.
4. Return to the menu MANUAL TEST and stop AUX. HEAT 1 by setting the value back to 0.
5. Repeat the steps for the first auxiliary heating for AUX. HEAT 2 and AUX. HEAT 3 depending on actual fuze size.
6. Stop the circulation pump by setting the parameter CIRC. PUMP to 0.
10.5.8 Test the outdoor unit
Test the Atria Optimum and Atria Duo Optimum outdoor unit
The defroster shunt motor has 120 sec running time end to end.
1. Start the defroster shunt by setting the parameter SHUNT DEFR to -(minus). Check that the shunt motor is working.
2. Start the fan at low speed by setting the FAN L value to 1. Check that the fan runs at low speed.
3. Start the fan at high speed by setting the FAN H value to 1. Check that the fan runs at high speed.
4. Check that the temperature of the defrosting sensor and the actual outdoor temperature are the same.
10.5.9
Exit test operation
1. Set the parameter for MANUAL TEST to 0.
10.6
Commissioning
10.6.1 Select operating mode
1. Set the heat pump to the desired operating mode in the menu INFORMATION -> OPERAT.
2. If necessary, set certain parameters in the control system, such as ROOM and CURVE.
10.6.2
Adaptation to the heating system
If a fixed speed circulation pump is used, the heat pump settings must be adjusted to the applicable heating system, for instance an
underfloor heating or radiator system. The delta temperature (the difference between the supply line and return line) should be 7–10°C.
If this is not reached, the flow of the circulation pump may need adjusting depending on the applicable heating system.
The delta temperature should be 3–5°C for the brine system.
Installation Guide
Domestic heat pumps
Thermia Värmepumpar VMGFP202
69
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