Unigas TP512A, Installation, User'S, And Maintenance Manual

Page: 20 / 56

CIB UNIGAS - M039177CA
20
ELECTRICAL CONNECTIONS
NOTE: if the burner is provided with separated control panel, refer to the annex.
To execute the electrical connections, proceed as follows:
1 remove the cover from the electrical board, unscrewing the fixing screws;
2 execute the electrical connections to the supply terminal board as shown in the following diagrams,
3 check the direction of the fan motor (see next pargraph)
4 refit the panel cover.
Connect the three-phase supply to terminals L1, L2, L3 and PE (ground); then shunt the phase and neutral wires (Fig. 22) for the auxi-
liaries on the printed circuit (N-terminal = neutral; L-terminal = phase)
Keys - Fig. 22
IG: main switch
KM1: fan motor’s contactor
M: fan motor
TV: fan motor thermal cutout
Respect the basic safety rules. make sure of the connection to the earthing system. do not reverse the phase and
neutral connections. fit a differential thermal magnet switch adequate for connection to the mains.
ATTENTION: before executing the electrical connections, pay attention to turn the plant’s switch to OFF and be
sure that the burner’s main switch is in 0 position (OFF) too. Read carefully the chapter “WARNINGS”, and the
“Electrical connections” section.
WARNING: The burner is provided with an electrical bridge between terminals 6 and 7; when connecting the
high/low flame thermostat, remove this bridge before connecting the thermostat.
IMPORTANT: Connecting electrical supply wires to the burner teminal block MA, be sure that the ground wire
is longer than phase and neutral ones.
Fig. 21: Power supply terminal board
Fig. 22: Electric motor connection
Alime
n
tazio
n
e au
siliari
Auxili
ar
y
r
e
lais po
wer su
pp
ly