SECTION 5: SERVICE PROCEDURES

VACUUM BREAKER REPAIR PARTS KIT

These dishmachines are equipped with vacuum breakers to serve as back-flow prevention devices. ASSE requirements specify what type of back-flow prevention is nec- essary on dishmachines. Vacuum breakers, unlike air gaps, have certain parts that have specific tolerances and design aspects that must be met in order to function properly.

Jackson offers repair kits for replacing some of the wear items associated with vacuum breakers which will allow you to save money in that replacement of these parts can take place without removing the vacuum breaker from the plumb- ing assembly.

The instructions provided here are for maintenance personnel only. Unauthorized persons should not attempt any of the steps contained in these instructions.

Warning: many of the instructions and steps within this document require the use of tools. Only autho- rized personnel should ever perform any maintenance procedure on the dishmachine!

PREPARATION

STEPS

1.Note: These instructions only apply to vacuum breakers (1/2” NPT and 3/4” NPT) as pictured below. The repair kits indicated in these instructions will only work on those style of back-flow preventers. If you have a machine with a different style of vacuum breaker, contact Jackson about replacement components.

Vacuum breaker

1.Power must be secured to the unit at the service breaker. Tag or lock out the service breaker to prevent acci- dental or unauthorized energizing of the machine.

2.Ensure that incoming water to the machine is secured either by use of a shut-off valve or disconnecting the incoming water line.

TOOLS REQUIRED

The following tools will be needed to perform this maintenance evolution:

1.Small flathead screwdriver

2.Needle nose pliers

TIME REQUIRED

It is estimated that it will take (1) person twenty min- utes to perform this task, not including all of the items indicat- ed in the section entitled “PREPARATION”.

IMPORTANT NOTES

1.Read these instructions thoroughly before attempt- ing this maintenance evolution. Become familiar with the parts and what actions need to be taken. This will save time in the long run!

2.Note: Even though the photos in these instructions show a vacuum breaker that has been removed from the plumbing assembly, these maintenance steps could be performed with it installed so long as the requirements in the section entitled “PREPARATION” have been met.

3.Remove the top cap by gripping firmly and turning to the left. The cap should come off after a few turns.

Removing the cap

4.Set the cap to the side.

5.Using the needle nose pliers, gently lift out the plunger and set to the side. Examine the brass seating surface inside the vacuum breaker. The plunger is required to sit flat on this sur- face so it must be free of defects, imperfections and the like. If there is debris, remove it. If it is chipped or cracked then the vacuum breaker must be replaced. Failure to do so may result in the vacuum breaker not working according to its design and could result in damage to the dishmachine.

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

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Jackson 300XS, 300XLT, 300XN technical manual Preparation Steps, Vacuum Breaker Repair Parts KIT
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300X, 300XN, 300XLT, 300XS specifications

The Jackson 300 series presents a range of advanced air conditioning units that cater to diverse heating and cooling needs. Notable models include the 300X, 300XLT, 300XN, and 300XS, each equipped with distinct features that enhance performance, efficiency, and user comfort.

The Jackson 300X stands out with its cutting-edge inverter technology, which enables precise temperature control while minimizing energy consumption. Its variable-speed compressor adjusts to real-time conditions, ensuring consistent comfort and significant savings on utility bills. The model is also recognized for its robust build quality, designed to withstand extreme weather conditions.

On the other hand, the 300XLT model takes energy efficiency to the next level. This unit incorporates a high-efficiency condenser and evaporator coils, promoting improved heat exchange and reduced energy loss. Additionally, it utilizes eco-friendly refrigerants that comply with environmental regulations, making it a responsible choice for conscious consumers.

The 300XN variant is tailored for noise-sensitive environments, such as bedrooms and offices. This silent operation feature allows the unit to run at remarkably low decibel levels, providing comfort without the disruption of loud HVAC systems. The 300XN also boasts an advanced filtration system that improves indoor air quality, capturing dust and allergens effectively.

Lastly, the Jackson 300XS is designed for exceptional versatility. This model offers multiple installation options, making it suitable for various spaces, from residential to commercial settings. Equipped with smart connectivity features, the 300XS can be controlled remotely via a smartphone app, allowing users to adjust settings on-the-go.

All models come with a user-friendly interface, allowing for easy temperature adjustments and filter change notifications. The durability of these units is further enhanced by their corrosion-resistant materials, extending their lifespan and performance.

In summary, the Jackson 300 series features models like the 300X, 300XLT, 300XN, and 300XS, each offering unique advantages. With a blend of innovative technologies, energy efficiency, and user-friendly controls, these air conditioning units provide tailored solutions to meet varied environmental demands, ensuring optimal comfort year-round. Whether for residential or commercial use, Jackson's offerings underscore a commitment to quality and performance, making them a notable choice in today’s HVAC market.
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