ELECTRICAL CONNECTION
VECTOR
CONTROL PANEL
HEATER
STEP 3
HEATER
STEP 2
HEATER
STEP 1
ELECTRIC HEATER
CONTACTOR GROUP
VECT
OR CONTR
OL CARD
ENERGY BOX 4000
CONTACTOR GROUP
If electric heater 2 phase,
these connections will not be made.
MAIN SUPPLY
FAN STEP SET
TRANSFORMER
ENERGY BOX 4.650 3 STEPS ELECTRIC HEATER AUTOMATION DIAGRAM - HRV
The figure shows VECTOR control panel in ENERGY BOX 4.650 unit which is used
with 3 stepped three-phase electric heater.
! WARNING
Only qualified service may
intervene in the unit's internal
connection.
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+30.211.70.55.500 +30.210.22.23.283