Blodgett MT3870, Service And Repair Manual

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MT3870
1-1
OVEN SPECIFICATIONS
VENTILATION REQUIREMENTS
The hood should completely cover the unit with an
overhang of at least 6" (15 cm) on all sides not adjaĆ
cent to a wall. The distance from the floor to the
lower edge of the hood should not exceed 7' (2.1
m). The ventilation system should replace 80% of
the exhaust volume with fresh make up air.
TABLE 1 should be used as a guideline.
Single Double Triple
CFM 1200Ć1650 2400Ć3300 3600Ć5000
M
3
/min 34 Ć 47 68Ć93 102Ć142
TABLE 1
ELECTRICAL SPECIFICATIONS
NOTE: Three Phase hookup is not permitted.
WARNING: DO NOT INSTALL A HIGH LEG" TO
ANY CONVEYOR OVEN!
Installations within the U.S.
The MT3870 requires a 15 Amp, 60HZ, 1 F ,
208Ć240VAC, 4 wire service consisting of L1, L2,
neutral and ground. See FIGURE 1. Use 90 C wire
and size to National Electric or local codes.
Installations outside the U.S.
The MT3870 requires a 15 Amp, 50Hz, 1 F , 230
VAC, 3 wire service consisting of L1, neutral and
ground. See FIGURE 1. Use 90 C wire and size
wire according to local codes.
CE approved installations
Connect the oven to a separate group 230V, 50 hz
with rigid connection and circuit breaker. The cirĆ
cuit breaker should disconnect all poles, including
neutral with a contact separation of at least 3 mm.
NOTE: The burner control unit is phase sensitive.
If the phase and neutral are switched the
control locks out.
Connect exhaust fan connector 1 and 2. See
FIGURE 1. Connect phase + n ground.
ÉÉ
ÉÉ
ÉÉ
s
Connector
1
2
L3
L2
L1
N
Fan
N
L
Blodgett
Connector
2Ć4Ć92
A2
A1
2
1
Relay A
2
1
Air Pressure Regulator
Burner Control Solenoid
CE Approved Installations
U.S. Installations Export Installations
L1
N
L2
120
120
208Ć240
Oven Supply
L1
N
220Ć230
Oven Supply
FIGURE 1