Technical Information
116
CVA 4062/CVA 4066/CVA 4068 Coffee Systems
Setting Ranges Factory Setting
Espresso 30 – 250 mL 60mL
Coffee 30 – 250 mL 125mL
Cappuccino
Espresso 30 – 250 mL 60mL
Milk froth 1 – 60 s 15 s
Latte Macchiato
Espresso 30 – 250 mL 60mL
Milk froth 1 – 60 s 15 s
Hot milk 1 – 80 s 15 s
Hot milk 1 – 80 s 45 s
Milk froth 1 – 60 s 42 s
Hot water 30 – 250 mL 125mL
9 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
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