Understanding Cva 40Xx Temperature Fuses - Miele CVA 4062 Technical Information

Technical Information
Setting Ranges
Espresso
Coffee
Cappuccino
Latte Macchiato
Hot milk
Milk froth
Hot water
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Understanding CVA 40xx Temperature Fuses

The CVAs have temperature fuses on both the coffee and steam heaters. These fuses
are SODs (single-operation devices) designed to protect the system from a "runaway
heater" scenario.
The heaters are controlled by NTC feedback to the electronic and energized via a
TRIAC. TRIACS are power transistors designed to switch high-current AC devices on
and off. As a second layer of temperature control, the heaters have self-resetting
bimetal thermostats which interrupt the AC power to the heater at a predetermined
CVA 4062/CVA 4066/CVA 4068 Coffee Systems
30 – 250 mL
30 – 250 mL
Espresso 30 – 250 mL
Milk froth 1 – 60 s
Espresso 30 – 250 mL
Milk froth 1 – 60 s
Hot milk 1 – 80 s
1 – 80 s
1 – 60 s
30 – 250 mL
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Factory Setting
60mL
125mL
60mL
15 s
60mL
15 s
15 s
45 s
42 s
125mL