Component Test - Unic Tango ST Duo Technical Note

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►Component test

When entering the menu the machine switches to the ''test'' mode (on the duo the right screen is disabled),
the group and steam heating are disabled.
Note: Self-checks 1 and 2 are carried out after having left the test menu, and then the machine goes into
normal operation.
List of testable items, such as
all the solenoid valves of the
machine, the coffee group,
the relays, the grinder(s), etc.
Piston LEFT up
Piston LEFT down
Piston RIGHT up
Piston RIGHT down
Plateau to LEFT position
Plateau to CENTER position
Plateau to RIGHT position
Find known plateau position
RSV1 Solid state relay steam 1
RSV2 Solid state relay steam 2
RSV3 Solid state relay steam 3
RSC1 Solid state relay coffee 1
RSC2 Solid state relay coffee 2
RSC3 Solid state relay coffee 3
MAC1 Grinder n°1 (purple)
MAC2 Grinder n°2 (green)
MAC3 Grinder n°3 (orange)
POMP Motor pump
CHGR Heating group
EAMAN Electromagnet of DK door
EV filling
EVRE
EVSE EV hot water outlet
EVSV EV steam outlet
EVNK EV coffee cleaning
Press = Runs the component
(max. 5 sec.) Release = Stops the
component
EVKG EV left coffee
EVP1 EV pre infusion 1
EVLCF Hot-cold milk selection
EVNR EV steam/EV cleaning-rinsing
EVNO EV bloc de nettoyage
EVALF1 EV cold milk air
EVNL1 EV cleaning milk
EVALC1 EV hot milk air
EVLG_EVVS EV left LC latte outlet/EV coil pipe steam
EVAEG EV water addition left coffee
EVCG_EVRP EV left LC cappu outlet/EV rinsing purge
EVNC EV cleaning cappuccino
EVKD_EVM1 EV right coffee/EV mixer 1
EVAED_EVM2 EV water addition right coffee/EV mixer 2
EVCD EV right LC cappu outlet
EVLD EV right LC latte outlet
EVP2 EV pre infusion 2
MM1 Motor mixer 1
MM2 Motor mixer 2
MT1 Motor hopper 1
MT2 Motor hopper 2
FAN_SOL Fan for soluble MT
MPOMP milk pump
Directional arrows