4.11 Motor Connection At 208-230 Or 460V; 4.12 Motor Connection At 575V; 4.13 Reversible Direction - Riello RS 250/EV Installation, Use And Maintenance Instructions

Forced draught gas burner, progressive two stage or modulating operation.
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4.11 Motor connection at 208-230 or 460V

The motors, manufactured for 208-230/460 IE2/
Epact voltage, have a different connection than IE1
motors, no more star/delta but star/double star.
WARNING
IE1
D3686
~ ~ ~
460V

4.12 Motor connection at 575V

The motors, manufactured for 575V IE2/Epact
voltage, have the same control box base of the IE1
motors.
Please pay attention to the indications in case of
WARNING
maintenance or substitution.

4.13 Reversible direction

If it is necessary to reverse the direction then
reverse the two main supply phases.
For example: L1 with L2, there is not difference
between IE1 and IE2/Epact
WARNING
20044771
Installation
~ ~ ~
208-230V
.
28
GB
Please, pay attention to the indications in case of
modification of voltage, maintenance, or substitu-
tion.
WARNING
IE2/Epact
S8380
U2
V2
W2
U3
V3
W3
U1
V1
W1
~
~
~
460V
S8382
L1
L2
VKDIW
U2
V2
U3
V3
U1
V1
~
~
208-230V
~ ~ ~
575V
/
/
/
/
S8381
S8379
W2
W3
W1
~
Fig. 30
Fig. 31
/
/
Fig. 32

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