Calomax Quantum User Manual download pdf (Page 15)

Page 15

sensors. The PCB also controls the external light unit to indicate

the current state of the boiler. Red and yellow LED’S on the circuit

board indicate whether the PCB has energised the element or

solenoid respectively.

The auxiliary PCB controls the dispense valve, push buttons and

key switch functions.

Should an element fail and need to be replaced, it may be

necessary to replace the lid gasket to ensure a reliable steam-tight

seal. Note: the element has a permanent ‘Live’ feed, and the

‘Neutral’ is switched.

Printed Circuit Board replacement (PCB)

In the event of a PCB failing and a replacement being required, full

instructions will be supplied. It is important to note however, that the

Triac PCB must be securely mounted against the copper heat-sink

to ensure reliable heat dissipation. Heat transfer compound is also

supplied with all replacement circuit boards.

Adjusting the Water Temperature Set Point

The temperature potentiometer (Pot) is pre-set at Calomax and

will only require adjustment in exceptional circumstances. Contact

Calomax for advice.

Water boils at different temperatures depending on barometric

pressure. The temperature should not be tuned higher than 98

°C, or

over boiling may occur during low barometric pressure conditions,

causing the unit to trip the overheat cut-out device.

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Calomax Quantum User Manual Page 15