Use only R-402B as

FOR MODELS

GR-0400A GR-0401W GR-0490N GD-0402A GD-0403W GD-0492N GY-0404A GD-0405W GY-0494N

G-0400 REFRIGERANT FIELD CONVERSION PROCEDURE

R-502 to R-402B

WARNING!

retrofit refrigerant. Other replacement refrigerants may cause poor performance and/or component failure.

EQUIPMENT MODIFICATION REQUIREMENTS

Component	Change Required
Compressor	None (replacement compressor is precharged with POE oil)
Expansion Valve (TXV)	None
High Pressure Cut-out	None
Low Pressure Cut-out (Remotes)	None
Fan Cycling Control (Air-cooled)	None
All Solenoid Valves	None
Water Regulating Valve (Water-cooled)	None
Heat Exchanger	None
Electrical Wiring	None
Branch Circuit Fuse Size	None
Air-cooled Condenser	None
Water-cooled Condenser	None
Evaporator	None

SYSTEM PERFORMANCE AFTER CONVERSION

Daily Ice Production	Energy Efficiency
G-0400 8% increase	5% increase

Operating discharge (high) pressure: air-cooled models will run 20-30 psig (138-207 kPa gauge) higher than R-502 pressures published in service manuals. Set water-cooled head pressure the same as R-502 settings.

Operating suction (low) pressure: will run 1-3 psig (7-21 kPa gauge) higher than R-502 pressure published in service manuals.

Manitowoc Equipment Works

8010513 Sheet 1 of 2 08/96

Division of The Manitowoc Company, Inc. • 2110 South 26 Street, P.O. Box 1720, Manitowoc , WI 54221-1720 USA Telephone 414-682-0161 • Fax - Sales: 414-683-7589 • Service/Parts: 414-683-7585 • Other: 414-683-7879

GR-0490N, GR-0400A, GR-0401W specifications

Manitowoc Ice continues to set the standard in commercial ice maker technology with its innovative models, GR-0401W, GR-0400A, and GR-0490N. These ice makers are designed for restaurants, bars, and other commercial establishments seeking reliable, efficient ice production.

The GR-0401W is a stellar representative of Manitowoc's ice-making prowess. With a production capacity of up to 450 pounds of ice per day, it ensures that high-volume demands are easily met. This unit's compact design allows for fitting into tight spaces without sacrificing performance. One standout feature is the Smart Design technology, which significantly reduces service time and improves accessibility for maintenance. Additionally, it comes equipped with a built-in antimicrobial protection system, reducing the potential for contamination and ensuring that every batch of ice meets health and safety standards.

On the other hand, the GR-0400A is recognized for its advanced ice-making capabilities, producing up to 400 pounds of cube-style ice per day. Its intuitive control system allows operators to easily adjust settings and track production, facilitating seamless operation. The efficient air-cooled system maximizes energy efficiency, which results in lower utility bills. The GR-0400A is built with reliability in mind, featuring stainless steel components that enhance durability while also being easy to clean—ideal for busy environments where time is of the essence.

Lastly, the GR-0490N model caters to those who require compact yet robust ice production. Capable of producing around 490 pounds of ice daily, it integrates advanced engineering that enhances its energy efficiency and performance. Its sleek design allows it to fit under most counters, making it perfect for establishments with limited space. The innovative environment-friendly refrigerant used in the GR-0490N not only complies with industry regulations but also contributes to lower operational costs.

In summary, Manitowoc Ice models GR-0401W, GR-0400A, and GR-0490N exemplify cutting-edge ice-making technology, delivering high output, exceptional durability, and energy efficiency. Ideal for various commercial applications, these units cater to the growing demands of the food service industry while ensuring quality and safety in every cube produced. These machines truly elevate the standard of ice-making solutions available on the market today.

Manitowoc Ice GR-0400A service manual Use only R-402B as, For Models, Manitowoc Equipment Works

Models: GR-0490N GR-0400A GR-0401W