Pump Capacity/ Head; Annual Servicing - Baxi Luna Duo-Tec MP 1.35 Instructions Manual For Users And Installers

boiler is switched on, the gas supply is open and the system is correctly pressurised.
Pump anti-block function
If no heat demand is received in the heating and/or DHW modes for 24 consecutive hours, the pumps will automatically start and
operate for 10 seconds.
This device is set to 4 bar and is used for the heating circuit. Connect the safety valve to a drain trap. Do not use it to drain the
heating circuit.
In case of a heat demand in the heating mode, the appliance can pre-circulate the pump before the burner is ignited. This pre-
circulation phase last from a few seconds to a few minutes, depending on the operating temperature and installation conditions.

17. PUMP CAPACITY/ HEAD

The hydraulic pump is modulating and circulates the water between the boiler and the hydraulic separator.
KEY TO PUMP CHARTS - "SECTION" E
Q RATE OF FLOW
H HEAD

18. ANNUAL SERVICING

following at the annual service:
Check for any blockages inside the siphon.
7115196.01 (5-10/14)
"SECTION" E
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