Electrical Connection - Blodgett MT3870 Installation, Operation & Maintenance Manual

Installation

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 MT3870 requires a 15 Amp, 60HZ, 1Φ,
208-240VAC, 4 wire service consisting of L1, L2,
neutral and ground. Use 90_C wire and size to Na-
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 between 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 source.
2. Connect the white wire to the system neutral.
3. Connect the green wire to the system ground.
General export and Australian installations
The MT3870 requires a 15 Amp, 50Hz, 1Φ,
220-240 VAC, 3 wire service consisting of L1, neu-
tral and ground. Use 90_C wire and size wire ac-
cording to local codes.
WARNING!!
Incorrect single phase wiring will result in
extensive damage to electrical compo-
nents and possible fire in the control pan-
el.
L1
N
Supply
L2
U.S. and Canadian Installations
L1
N
Supply
General Export Installations
THE BLODGETT OVEN COMPANY CANNOT AS-
SUME RESPONSIBILITY FOR LOSS OR DAMAGE
SUFFERED AS A RESULT OF IMPROPER INSTAL-
LATION.
16
120
208-240
120
220-240
Oven
Figure 22
Oven