CIRCUIT BOARD DIAGNOSTIC PROCEDURE

Turn the power switch to the “ON” position. The D-5 red LED (error indicator) will be illuminated for 2 seconds. After the D-5 red LED goes out, short across the bottom two terminals of the Test Plug with a jumper wire or a pocket screwdriver and then remove the jumper. The circuit board is now in the test mode.

One of these two conditions will exist:

SIf the Ice Thickness Potentiometer is within the factory setting the D-5, red LED will flash continiously.

SIf the Ice Thickness Potentiomater is not within the factory setting, the D-5 red LED will not be illuminated.

In either case the Green LED indicators will illuminate for 2 seconds each in the sequence shown below. They will continue to sequence until you turn the power off and stop the procedure.

D-11

Green

Hot Gas

D-12

Green

Water Pump

D-14

Green

Contactor

D-6

Green

Fan

D-15

Green

Dump Valve

Failure of the green LED’s to cycle in this sequence indicates a defect in the circuit board.

 

D913

D915

Water

 

 

 

 

 

Dump

 

 

 

RH Evap. Switch

YL

 

Valve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N

 

D914

Contactor

7

8

S

RH Evap.

 

 

 

 

 

 

 

 

5

 

LED Indicators

 

 

Water

 

6

 

 

 

 

 

 

YL

 

 

3

4

LH Evap. Switch

 

Pump

 

D910

 

 

 

 

 

D912

 

1

2

N

 

 

LH Evap.

 

 

 

S

 

 

 

 

 

 

GR

Hot Gas

 

Condenser Sensor

 

 

 

Condenser

 

 

 

 

White

D911

 

 

 

plug

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Brown

Suction plug

Fan

 

 

Voltage

 

 

 

Suction Line

 

 

D96

 

Selector

Sensor

Test

 

 

Switch

RD

GR

 

 

Test

Plug

 

 

 

D95

 

 

 

Plug

 

 

 

 

 

 

 

 

 

 

 

Options

Error

 

 

 

 

 

 

 

 

 

 

 

Plug

Adjustable Ice

 

 

 

 

 

Thickness Pot.

 

Transformer

 

 

Micro Processor

 

 

 

 

 

Stacking

 

 

 

 

 

 

Cable

 

Manual

 

 

 

To Stacked

Plug

 

 

 

 

 

Harvest

 

 

 

 

 

 

 

 

Unit

 

 

Switch

 

 

 

(if required)

 

 

 

 

 

 

166240004

22

12/1/94

Rev 3/4/96

 

 

Page 25
Image 25
Cornelius IAC530, IAC 322, IAC227, CR800, CR1200, CR1400 Circuit Board Diagnostic Procedure, Green Contactor Fan Dump Valve

IAC530, IWCS227, IWC522, IAC522, IAC330 specifications

Cornelius has established itself as a leader in the field of beverage dispensing systems, and its range of machines, including the IAC 322, IAC 227, CR800, CR1200, and CR1400, showcases advanced technology and user-friendly designs tailored for various commercial environments.

The Cornelius IAC 322 is a compact and versatile air-cooled unit designed for high-volume beverage dispensing. It features an efficient refrigeration system that ensures optimal temperature control, providing beverages that are always served at the perfect temperature. Its user-friendly interface allows operators to manage settings easily, and its durable construction ensures longevity in busy environments.

The IAC 227 model is similar in design but is specifically optimized for lower volume settings. With a smaller footprint, it is ideal for cafes and small bars. This model also incorporates energy-efficient technology, minimizing power consumption without compromising performance. The IAC 227 maintains the same commitment to temperature control, ensuring each cup served enhances the customer experience.

Turning to the CR series, the CR800 stands out with its robust build and larger capacity. This unit is designed for establishments needing a reliable dispenser for a variety of carbonated beverages. The CR800's carbonation technology ensures each drink maintains the right level of fizz, contributing to a consistent taste. Its modular design facilitates easy maintenance and upgrades, making it a favorite among operators.

The CR1200 increases capacity, making it suitable for larger venues, including stadiums and large restaurants. This model incorporates advanced monitoring systems that track beverage levels and alert operators when supplies are low. The CR1200 also supports multiple beverage types, allowing for customization based on customer preference while maintaining ease of use.

Lastly, the CR1400 takes it a step further, combining high-capacity dispensing with cutting-edge technology. It features touchscreen controls for intuitive operation and automated cleaning systems that reduce downtime. The CR1400 is designed with a focus on sustainability, using recyclable materials and energy-efficient components to lessen its environmental impact while maintaining premium performance.

Together, the Cornelius IAC and CR series models represent the forefront of beverage dispensing technology, emphasizing efficiency, durability, and customer satisfaction. Whether for a small café or a large arena, these machines provide businesses with the tools they need to serve quality beverages consistently.