Installation & Service Manual

N5D, N5DH, N5DL, N5DSC

SERVICE INSTRUCTIONS

Troubleshooting Self-Contained Units

WARNING

Never work on electrically powered equipment while it is energized! Electrical shock could cause personal injury and/or death.

TROUBLE

COMMON CAUSE

REMEDY

1.

Unit will not run

Blown fuse

Replace fuse.

 

 

Low voltage

Check outlet with voltmeter. Voltage

 

 

 

should be 115V or 220V (±10%).

 

 

Inoperative motor or

Check connections.

 

 

temperature control

 

2.

Refrigerated section

Shelves overloaded;

Make sure items do not block the

 

is too warm

blocked air flow

air flow.

 

 

Thermostat set incorrectly

Check setting.

 

 

Pressure control set

Check setting.

 

 

incorrectly

 

 

 

Case fans not operating

Check terminal block connections.

3.

Refrigerated section

Thermostat set incorrectly

Check setting.

 

too cold

 

 

 

 

Pressure control set

Check setting.

 

 

incorrectly

 

4.

Unit runs all the time

Inadequate air circulation

Relocate cabinet or remove obstruc-

 

 

 

tion. Check installation requirements.

 

 

Room temperature

Ventilate room appropriately.

 

 

too warm

 

 

 

Thermostat set incorrectly

Reset thermostat.

 

 

Refrigerant charge low

Have unit serviced by a qualified

 

 

 

service technician.

5.

Noisy operation

Loose baffles

Tighten or brace baffles.

 

 

Tubing contacting cabinet

Move tubing.

 

 

or other tubing

 

 

 

Cabinet not level

Level cabinet.

6.

Frost or ice on

Defrost clock doesn’t work

Check electrical conections. Have

 

evaporator coil

 

unit serviced by a qualified service

 

 

 

technician.

7.

Water dripping from

Condensate drain clogged

Clear drain.

 

case drain

 

 

 

 

Dissipator not functioning

Check electrical supply. Check

 

 

 

float assembly.

January, 2001

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Tyler Refrigeration N5DSC, N5DL, N5DH service manual Service Instructions, Troubleshooting Self-Contained Units

N5DL, N5DSC, N5DH, N5D specifications

Tyler Refrigeration is renowned for its commitment to delivering high-quality commercial refrigeration solutions, and their N5 series units exemplify this dedication. The N5DSC, N5DH, N5D, and N5DL models are designed to cater to the diverse needs of the food service and grocery industries, providing reliable refrigeration for a wide variety of applications.

One of the standout features across the N5 series is their energy efficiency. Each model is engineered with advanced technology to minimize energy consumption while ensuring optimal cooling performance. This not only contributes to lower operational costs but also aligns with environmentally-conscious practices. The incorporation of high-efficiency compressors enhances cooling capabilities while reducing the overall carbon footprint.

The N5DSC is a vertical display case that takes pride in its aesthetically pleasing design, combining functionality with a modern look. Its glass front allows for excellent product visibility, encouraging impulse buys while maintaining temperature integrity. Equipped with LED lighting, the N5DSC showcases merchandise effectively, while its adjustable shelving provides flexibility for various product sizes.

The N5DH model is another notable variant with a focus on versatility and durability. Built with an emphasis on heavy-duty construction, it is ideal for high-traffic environments. The unit offers easy access and adjustable controls that enable operators to fine-tune temperatures according to specific needs, ensuring that products are stored under optimal conditions.

The N5D model is designed for more traditional applications, featuring robust build quality and a user-friendly interface. Its spacious interior allows for maximum product storage while maintaining efficient airflow, which is essential for consistent cooling across all items. This model is particularly suitable for back-of-house operations, ensuring that essentials are easily accessible without compromising refrigeration performance.

Lastly, the N5DL model is tailored for versatility in layout and design. It offers customization options that make it suitable for various configurations within stores or kitchens. Its energy-efficient technology and comprehensive cooling features ensure that companies can effectively manage their refrigeration needs while reducing their energy expenditures.

In summary, the Tyler Refrigeration N5 series, including the N5DSC, N5DH, N5D, and N5DL models, represent the pinnacle of commercial refrigeration technology. With features that prioritize energy savings, product visibility, durability, and versatility, they are essential assets for any business looking to optimize their refrigeration capabilities. These models not only enhance operational efficiency but also contribute to a visually appealing customer experience, setting establishments apart in a competitive market.