Owner`s manual

Computer Control Startup
13
Convection Blowers
Motor Rotation of Convection Blowers
The correct amp draw for most conveyor ovens is
1 amp. For MT1828 the correct amp draw is .6
(cold) an d .3 (hot).
If th e amp draw is less than .5 (for MT1828 use .3
cold and .1 hot), remove the back of the oven and
check for proper motor rotation direction. See
Figure 12.
Due to its vertical positioning the motor direction
is reference from the end of the motor (EOM) as
viewed from the rear of the oven.
Checking the Low Limit of the Blowers:
1. Turntheovenon.Letitheattoapproximately
200_F(93_C). Shut the oven off. The blowers
should come back on in several seconds.
2. When the blowers shut off, turn the oven on.
Press the ACT TEMP key to verify that the
blowers shut off from 135-170_F (57-77_C).
Blower
Motor
Slinger
Cooling Blade
Motor #1 Motor #2
MT1828
BLOWER WHEEL ROTATION
(Side view)
Motor #1 M otor #2
MT2136
BLOWER WHEEL ROTATION
Motor #1 Motor #2
MT3240 (2 blower)
BLOWER WHEEL ROTATION
Motor #1 Motor #2 Motor #3
Motor #4
MT3270 and MT3870
BLOWER WHEEL ROTATION
(Top view)
Control Box
Control Box Control Box
Control Box
Motor #1 Motor #2 Motor #3
MT3855
BLOWER WHEEL ROTATION
Control Box
Motor 2 Motor #3
MT3240 (3 blower)
BLOWER WHEEL ROTATION
Control Box
Motor #1
Figure 12