geminox THR 10-50 User Manual

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The boiler is on standby awaiting a demand for
heat.
A: Start-up instruction.
I is given by the boiler regulator or by the domes-
tic hot water regulator.
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This time ends as soon as the fan motor speed
reaches the load programmed for preventilation.
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This time ends as soon as the programmed igni-
tion load is reached.
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Appearance of the ignition arc prior to opening
the gas valve, which occurs at the start of phase
35.
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A flame signal should be present (ionization cur-
rent > 2.8 µA) before the safety time has elapsed.
If this does not occur, another ignition attempt is
made.
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Burner operation following a demand for hot wa-
ter (display 6) or heating (display 7).
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The change of operating position to standby is re-
ferred to as a “shut-down” and occurs when the
demand for heat disappears. The gas valve clos-
es and the combustion residues are evacuated
by post-ventilation.
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Blocking time, for test purposes (about 2 s).
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Time required to arrive at the programmed air
flow rate.
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The fan remains on during the post-ventilation
phase.
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Obligatory passage from the shut-down position
to standby. This phase is also used to bring the
gas control box to the standby position after ex-
ceptional events such as a reset.
ABCD
Readout
90/123456./7. 8
Phase number 60 61 10 30 31 32 33 34 35 36 37 40 50 51 52 53
Heating demand
!
Flame signal
!
!
Temp. limiting safety device
Gas valve
Ignition
PWM
Fan speed
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Signal required
Signal unacceptable
> Condition required to move on the next stage
Range of possible speeds

geminox THR 10-50 Specifications

General

Brand	geminox
Model	THR 10-50
Category	Boiler
Language	English