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Installation
14
Electrical Connection
Before making any electrical connections to this
unit, check that the power supply is adequate for
the voltage, amperage, and phase requirements
stated on the rating plate.
NOTE: The rating plate is located on the control
box.
A wiring diagram accompanies this manual and is
also attached inside the control box.
U.S. and Canadian installations
The MT3855 requires a 15 Amp, 60HZ, 1Φ,
208-240VAC, 4 wire service consisting of L1, L2,
neutral and ground. Use 90_CwireandsizetoNa-
tional Electric or local codes.
Single phase units MUST NOT be connected to
the high leg of a three phase system. The high leg
refers to a potential of 240 volts between one
phase and neutral. The remaining two legs have
a potential of 120 volts betw een each phase and
neutral.
Connect the four wires at the connections box lo-
cated on the lower left side of the control panel
1. Connect the two black wires to the 208 -240
volt power s ource.
2. Connect the white wire to the system neutral.
3. Connect the green wire to the system ground.
Australia and general export installations
The MT3855 requires a 15 Amp, 50Hz, 1Φ,
220-240 VAC, 3 wire service consisting of L1, neu-
tral and ground. Use 90_Cwireandsizewireac-
cording to local codes.
WARNING!!
Incorrect single phase wiring will result in
extensive damage to electrical compo-
nents and possible fire in the control box.
U.S. and Canadian Installations
L1
N
L2
120
120
208-240
OvenSupply
General Export Installations
L1
N
220-240
OvenSupply
Figure 15
THE BLODGETT OVEN COMPANY CANNOT AS-
SUME RESPONSIBILITY FOR LOSS OR DAMAGE
SUFFERED AS A RESULTOF IMPROPERINSTAL-
LA TION.