NME454, 654 & FME504, 804

REMOVAL AND REPLACEMENT: Evaporator

To Replace the Evaporator:

 

To Reassemble the Evaporator and Auger

(Assuming all the steps for removal of the thrust

1. After the gearmotor has been inspected, fasten

bearing, breaker, auger, and water seal have been

the evaporator to the gear motor, be sure that the

performed.)

 

number of shims indicated on the gear case cover

1.

Recover the refrigerant from the ice maker.

is in place between the gearcase cover and the

2.

Unsweat the refrigerant connections:

drip pan gasket. Torque the bolts to 110 inch

pounds.

a) At the thermostatic expansion valve outlet.

2. Lower the auger into the evaporator barrel,

 

 

 

Heat sink the TXV body when unsweating or

slightly turning it to match up with the drive end. Do

Not Drop Into the Evaporator.

resweating the adjacent tubing.

 

 

3. Complete the reassembly by reversing the

 

 

 

b) At the suction line at the joint about 3" from the

disassembly for the breaker & thrust bearing

assembly.

evaporator.

 

 

 

3.

Remove the evaporator.

 

 

4.

Unsweat the drier from the liquid line.

 

5.

After installing a new water seal in the new

 

evaporator (see “To Replace the Water Seal”)

 

sweat in the new evaporator at the old tubing

 

connections.

 

 

6.

Install an new drier in the liquid

 

 

line.

 

ICE SWEEP

7.

Evacuate the system until

ICE CHUTE

 

 

 

dehydrated, then weigh in the

EVAPORATOR

 

nameplate charge. Check for leaks.

 

8. Install auger, breaker, breaker bearing assembly, and ice discharge

chute in reverse order of

BREAKER

 

disassembly. See “To Reassemble

 

Evaporator and Auger”

 

AUGER

BEARING

NME Components

Shown, FME similar.

January 2007

Page 29

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Image 29
Scotsman Ice NME654, NME454, FME804, FME504 Removal and Replacement Evaporator, Heat sink the TXV body when unsweating or

FME504, FME804, NME654, NME454 specifications

Scotsman Ice Systems is known for its high-quality ice machines, and models such as the NME454, NME654, FME804, and FME504 are no exceptions. Designed with both performance and efficiency in mind, these machines cater to various business needs, from restaurants to convenience stores.

The NME454 and NME654 units are renowned for their compact design, making them ideal for establishments with limited space. Despite their smaller size, these machines do not compromise on ice production capacity. The NME454 can produce up to 430 pounds of ice per day, while the NME654 boasts an impressive output of up to 600 pounds. Both models utilize Scotsman's signature innovative technology to ensure consistent ice quality, primarily in the form of nugget ice, which is favored for its ability to cool beverages quickly.

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All four models utilize an innovative air-cooled design that enhances energy efficiency and reduces operational costs. The easy-to-use control panel allows for straightforward operation, and maintenance is streamlined thanks to easily accessible components. Additionally, the quiet operation of the machines ensures that they can be used in front-of-house areas without distracting customers.

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