Technical information

12/01/02

CHECKOUT:

To check the operation of this control follow the same check

out procedure as with the mechanical control. Instead of

moving a paddle, you will place your hand within 1/2~1

inch of the sensor end. With the control switch in ICE, you

should hear the bin control relay switch when you move

your hand away from the sensor end and back again.

Check the resistance supplied at the Red K4 connector as

you move your hand back and forth at the sensor end.

Unplug the harness and use an ohmmeter to check the

resistance. As the sensor switches, the resistance value

will change as follows:

a) When your hand is away from the sensor end, the

resistance at the K4 connector will be 5.6 K ohms. This is

the bin empty signal.

b) When your hand is within 1/2~1 inch of the sensor, the

resistance at the K4 connector will be 15.5 K ohms. This is

the bin full signal.

If the relay does not switch or the resistance does not

change, check the control wiring, relay operation, and the

control power supply for 115 VAC input / 24 VAC output.

Note: Remember that dip switch # 7 must be ON and the

control will have these safeties.

4 Beeps = Short circuit on K5 bin control circuit.

5 Beeps = Open circuit on K5 bin control circuit.

F/DCM BIN CONTROL:

DCM bin controls may be a mechanical flapper with a mag-

netic proximity switch or a micro-switch assembly. Since

these controls have moving parts, make sure that all parts

move freely. Sticking can occur if scale builds up at the

pivot points. All flakers except the F-450MAF-C use the

mechanical/proximity switch control. If the bin control fails,

the spout will fill with ice causing higher gear motor current

and the gear motor protect fuse will blow.

The F-450MAF-C has an infrared eye bin control. A sepa-

rate power supply provides 24 VDC to the infrared eye.

This power supply is mounted in a separate control box

along with the bin control relay. The IR sensor is mounted

on the outside of the chute base in a molded indentation.

Two mounting holes mount the sensor to the chute base.

12/20/03

2/20/03