94
Start-up - initial settings and functions
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NOTE
Navigate through the components to be tested with . Force activation of the component by setting it to
ON and pressing .
The components that can be activated are:
3WAY-VALVE 1: 3-way DHW diverter valve
3WAY-VALVE 2: 3-way diverter valve for unmixed double zone systems
PUMP_I: primary circuit pump (P_i)
PUMP_O: secondary circuit pump (P_o)
PUMP_C: mixed circuit pump (P_c)
PUMPSOLAR: solar circuit pump (P_s)
PUMPDHW: DHW recirculation pump (P_d)
INNER BACKUP HEATER: built-in electric heater (IBH - only for applicable configurations)
TANK HEATER: DHW storage tank heater (TBH)
3-WAY VALVE 3: 3-way valve for double zone systems for unmixed zone 2 (SV3)
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NOTE
In double zone systems with one mixed zone, SV2 is not available.
11.2 AIR PURGE
Starts the vent cycle, which eliminates air in the water circuit that can cause the unit to malfunction.
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CAUTION DANGER
Before activating the function, open the vent valve.
11 TEST RUN
Test run is on.
Air purge is on.
CONFIRM
Fig. 92
The logic establishes that:
• the 3-way valve (SV1) opens and the 2-way valve (SV2) closes
• after 60 seconds, the flow switch switches o and the unit pump (P_i) switches on for 10 minutes
• the pump stops, the 3-way valve closes and the 2-way valve opens
• after 60 seconds, the unit pump (P_i) and the secondary pump (P_o) switch on
• the pumps stay on for 20 minutes
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NOTE
Check the cause of any errors shown on the display during the procedure.
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