Plum ecoMAX920P2-I, Operation And Installation Manual

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Diagram with heat buffer 3 , where: 1 – boiler with integrated pump, 2 – pump, 3 – H1-S temperature sensor, 4 – heat
buffer, 5 –fireplace pump controlled by fireplace regulator, 6 – H0-S sensor, 7 – fireplace with water jacket, 8 – H2
CIRCUIT regulated circuit water temperature sensor, 9 – H2 circuit pump, 10 –electrical servo of H2 CIRCUIT regulated
heat circuit, 11 – fireplace regulator, 12 – plate heat exchanger, 13 –thermostatic valve protecting return temperature, 14
– solar pump, 15 – solar panel, 16 - solar collector temperature sensor, 17 – temperature sensor of water for loading the
buffer with a solar pump, 19 – HUW circulation pump.
PROPOSED SETTINGS:
Parameter Setting MENU
Hydraulic diagram 2 menu  service settings  System
Selection Fireplace menu  service settings  System  Additional heat source
Temperature deactivating main heat source 35  C menu  service settings  System  Additional heat source
Cooling temperature 92  C menu  service settings  System  Additional heat source
Minimum temperature 25  C menu  service settings  System  Main heat source
Maximum HUW temperature 80  C menu  service settings  Solar
HUW mode OFF menu  service settings  HUW settings
Description: Pump (2) works together with boiler (1). When boiler (1) switches off, pump (2) deactivates with 5
minute delay. After fireplace sensor (6) is heated up to a temperature of (35  C), boiler (1) and pump (2) deactivates
with 5 minute delay. Pump (5) is controlled by fireplace regulator (11). When (6) exceeds 92  C, heat excess will be
transferred to heat and HUW circuits. Pump (9) will switch off if temperature on sensor (3) drops below 25  C. Pump (14)
switches off after exceeding 80  C.
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This hydraulic diagram shall not be considered as a project of central heating system and can be used only as a
reference!