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Installation Instructions for DF/ED250PRO Field Kit
© 2002, IMI Cornelius Inc. - 1 - Publication Number: 620919569
INSTALLATION INSTRUCTIONS
DF/ED250PRO FIELD KIT (P/N 629087544)
Installation of Low CO2 Indicator Light
CAUTION: Disconnect electrical power to the dispenser before proceeding with the
CO2 indicator light installation.
CAUTION: The Beverage System (water and CO2) must be depressurized and drained
before proceeding with the installation.
1.Remove the upper front panel which is secured to the cabinet by “hooks” that fit into slots
on the cabinet front flange. Lift up on the panel right and left sides to disengage the hooks
from the slots and then rotate the panel downward and forward to remove from the cabinet.
Disconnect the (3) electrical harnesses at the rear of the front panel.
2.Remove the lower front splash panel (2 screws).
3.Locate the CO2 supply line (1/4 beverage tubing) to the carbonator tank located on the
right side of the unit above the coldplate (see Fig. 1). Cut this line in an area that will be
accessible for future servicing and install the CO2 pressure switch with the fittings provided in
the kit (see Fig. 3).
4.Refer to Fig. 2 for installing the CO2 indicator light on the upper front panel. Remove the
lid and straw holder by loosening (3) screws at the “key-holes” and lifting up to clear the screw
heads. Remove the lower front ice portion control enclosure (4 screws) and disconnect the
electrical harnesses as needed for reworking the enclosure. Locate and drill a 1/2 in. diame-
ter hole in the enclosure as shown in Fig. 2 for the indicator light. Insert the light from the
front and “snap” into the mounting hole.
5.Refer to the wiring detail of Fig. 4 to complete the electrical hook-up of the indicator light to
the pressure switch and the 24V beverage transformer power source.
6.Route the electrical wires to the CO2 pressure switch behind the beverage panel with the
harnesses from the unit’s electrical control box. Remove the (6) screws securing the bever-
Parts List
Item No. Part Number Description Qty.
1 620313223 CO2 Pressure Switch 1
2 77060500 Tee 1/4MFL 1
3 40502 O-Clamp 2
4 77010400 1/4 Barb Stem 2
5 77045700 1/4 Flare Swivel Nut 2
6 178025100 1/4 Flare Washer 3
7 33666 Indicator Light 24V 1
8 620316401 CO2 Light Harness 1
9 620316402 CO2 Pressure Switch Harness 1
10 620313651 Jumper CO2 Pressure Switch 1
11 32870 Splice 2
12 50705 Cable Tie 8
13 620920638 Label Low CO2 Light 1
14 620919569 Installation Instructions 1
Release Date: October 9, 2002 Revision: A