Thermo King Smart Reefer 3

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Optiset Plus

The controller can be programmed with OptiSet Plus

temperature profiles that allow the user to select named

products and/or numeric setpoints. See the appropriate

Operator’s Manual for more detailed information about

using OptiSet Plus.

• Numeric Setpoint - If the controller does not have

named products loaded, the far left soft key will

display

SETPOINT as shown below. This is the factory

default setting. Change the numeric setpoint like you

normally would on an SR-3 Controller.

• Named Products - The controller can be

programmed to allow only named products to be

selected. In which case the far left soft key will

display

PRODUCT as shown below.

Named products can have a single setpoint, or they

can have a setpoint range that allows the user to

select a setpoint within that range.

NOTE: In OptiSet Plus the terms “numeric setpoint”

and “setpoint” mean the same thing and are

displayed as numbers. The terms “named product”

and “product” mean the same thing and are displayed

as words.

NOTE: Alarm Code 127, Setpoint Not Entered, may be

generated if the

+ or - soft keys are used to change

the numeric setpoint or named product, but the

YES

NO soft keys are not used to accept or decline the

new setting within 10 seconds.

• Named Products or Numeric Setpoint -The

controller can be programmed to allow named

products or numeric setpoints to be selected. In

which case the far left soft key will display

PRODUCT/

ETPOINT as shown below.

Selecting a Numeric Setpoint

To select or change a numeric setpoint complete the

following steps. This example shows the Standard Display

with the PRODUCT/SETPOINT soft key. Using the

Standard Display with the

SETPOINT soft key is basically

the same but some of the screens differ slightly.

1. Begin at the Standard Display.

If the Temperature Watch Display is showing, press

the

MENU soft key once to return to the Standard

Display.

2. Press the

PRODUCT/SETPOINT (or SETPOINT) soft

key on the Standard Display.

3. The “Named Product / Numeric Setpoint?” Screen

briefly appears, then the “Named Product or Numeric

Setpoint?” Screen will appear.

4. Press the

NUMERIC soft key.

5. The “Setpoint” Screen briefly appears, then the

“Current Setpoint Is” Screen will appear.

6. Press the

+ or - soft keys to change the setpoint.

7. Press the

YES soft key to select the new setpoint.

• If the

NO key is pressed the setpoint change selected

with the

+ or - soft keys will not be accepted, the

setpoint will not be changed and the display will

return to the Standard Display.

• If the

YES soft key is pressed, the setpoint change

selected with the

+ or - soft keys will be accepted,

and the following screens will appear.

8. The “Programming New Setpoint” Screen will briefly

appear.

9. The “New Setpoint Is 40” Screen briefly appears.

10. The Standard Display appears with the new setpoint.

NOTE: Pressing the

EXIT soft key at any point will

return to the Standard Display.

NOTE: If no keys are pressed for 30 seconds while in

the Named Product Changer Screens, the HMI will

return to the Standard Display.

Selecting a Named Product

To select or change a named product complete the

following steps. This example shows the Standard Display

with the

PRODUCT/SETPOINT soft key. Using the

Standard Display with the

PRODUCT soft key is basically

the same but some of the screens differ slightly.

1. Begin at the Standard Display.

If the Temperature Watch Display is showing, press

the

MENU soft key once to return to the Standard

Display.

2. Press the

PRODUCT/SETPOINT (or PRODUCT) soft

key on the Standard Display.

3. The “Named Product / Numeric Setpoint?” (or Named

Product) Screen briefly appears, then the “Named

Product or Numeric Setpoint?” (or Named Product)

Screen will appear.

4. Press the

NAMED soft key.

5. The “Product” Screen briefly appears, then the

“Current Product Is” Screen will appear.

6. Press the

+ or - soft keys to change the named

product.

7. Press the

YES soft key to select the new named

product.

• If the

NO key is pressed the named product change

selected with the

+ or - soft keys will not be

accepted, the named product will not be changed and

the display will return to the Standard Display. (Over)

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Summary

Optiset Plus Controller Overview

Optiset Plus Capabilities

Controller allows selection of named products and/or numeric setpoints.

Setpoint and Product Terminology

Clarifies terms 'setpoint'/'product' and specific notes.

Selecting Setpoints and Products

Selecting a Numeric Setpoint

Step-by-step guide to changing a numeric setpoint on the controller.

Selecting a Named Product

Step-by-step guide to selecting a named product from the controller's list.

Managing Named Product Setpoints

Selecting the Setpoint for a Named Product

Procedure to select a setpoint for a named product with a programmed range.

Changing the Setpoint for a Named Product

Procedure to adjust the setpoint for a named product with a programmed range.

Summary

Optiset Plus Controller Overview

Optiset Plus Capabilities

Controller allows selection of named products and/or numeric setpoints.

Setpoint and Product Terminology

Clarifies terms 'setpoint'/'product' and specific notes.

Selecting Setpoints and Products

Selecting a Numeric Setpoint

Step-by-step guide to changing a numeric setpoint on the controller.

Selecting a Named Product

Step-by-step guide to selecting a named product from the controller's list.

Managing Named Product Setpoints

Selecting the Setpoint for a Named Product

Procedure to select a setpoint for a named product with a programmed range.

Changing the Setpoint for a Named Product

Procedure to adjust the setpoint for a named product with a programmed range.

Overview

Function Description
Usage Features
Selecting a Numeric Setpoint
Selecting a Named Product
Changing the Setpoint for a Named Product (with a Setpoint Range)
Important Operational Notes
Maintenance Features

The OptiSet Plus system is a sophisticated controller designed for managing temperature profiles within refrigerated transport units, offering users the flexibility to select either pre-defined named products or specific numeric setpoints. This system is an integral part of the SR-3 Smart Reefer 3 Microprocessor, providing precise control over the refrigeration environment.

Function Description

The primary function of the OptiSet Plus controller is to maintain a desired temperature within a refrigerated space. It achieves this by allowing users to define and select specific temperature settings, either through a list of named products, each with its own temperature profile, or by directly entering a numeric setpoint. The system is designed to be user-friendly, guiding the operator through various screens to ensure accurate temperature management.

When operating with named products, the controller can be programmed such that each product has a single, fixed setpoint, or a range of setpoints, offering greater flexibility. For instance, "Grapefruit" might have a default setpoint of 35.5°F, while "Potatoes" might have a setpoint range of 40-50°F, allowing the user to choose a specific temperature within that range. This feature is particularly useful for mixed loads or for products that require different temperature conditions at various stages of transport.

The numeric setpoint functionality allows for direct temperature input, similar to how an SR-3 Controller operates. If no named products are loaded onto the controller, the system defaults to displaying "SETPOINT" on the far-left soft key, enabling the user to adjust the temperature numerically. This provides a straightforward method for temperature control when specific product profiles are not required or available.

The controller also incorporates a "Temperature Watch Display," which, if active, can be exited by pressing the MENU soft key to return to the Standard Display, ensuring that the user always has a clear view of the primary operational screen.

Usage Features

The OptiSet Plus controller is designed for intuitive use, primarily through a series of soft keys and a display screen that guides the operator through various selection and adjustment processes.

Selecting a Numeric Setpoint:

To select or change a numeric setpoint, the user begins at the Standard Display. Pressing the "PRODUCT/SETPOINT" (or "SETPOINT") soft key brings up a screen that briefly displays "Named Product / Numeric Setpoint?" before showing "Named Product or Numeric Setpoint?". The user then presses the "NUMERIC" soft key. The "Setpoint" screen appears, followed by "Current Setpoint Is," displaying the current temperature. The user can adjust this temperature using the "+" or "-" soft keys. After making the adjustment, pressing the "YES" soft key confirms the new setpoint. If "NO" is pressed, the change is discarded, and the display returns to the Standard Display. Pressing the "EXIT" soft key at any point will also return the display to the Standard Display, providing an easy way to cancel an operation.

Selecting a Named Product:

The process for selecting a named product is similar. From the Standard Display, the user presses the "PRODUCT/SETPOINT" (or "PRODUCT") soft key. After the "Named Product / Numeric Setpoint?" screen, the user selects the "NAMED" soft key. The "Product" screen appears, followed by "Current Product Is," displaying the currently selected product (e.g., "Grapefruit"). The user can then use the "+" or "-" soft keys to scroll through the available named products. Pressing "YES" confirms the selection, and the display shows "New Product Will Be" followed by the chosen product (e.g., "Potatoes"). If "NO" is pressed, the selection is canceled, and the display reverts to the Standard Display.

Changing the Setpoint for a Named Product (with a Setpoint Range):

If a named product has been programmed with a setpoint range, the user can adjust the setpoint within that range. After selecting the named product and confirming with "YES," if the product has a setpoint range, the "Change Setpoint for [Product Name]" screen appears, followed by "Current Setpoint of [Product Name] & Setpoint Range Is [Min] to [Max]." The user can then use the "+" or "-" soft keys to adjust the setpoint within the specified range. Confirming with "YES" accepts the new setpoint, while "NO" cancels the change.

Important Operational Notes:

The system differentiates between "numeric setpoint" and "setpoint" (displayed as numbers) and "named product" and "product" (displayed as words). This distinction helps in navigating the menu options.
The controller is designed to prevent accidental changes. If no keys are pressed for 30 seconds while in the Named Product Changer Screens, the Human-Machine Interface (HMI) will automatically return to the Standard Display, preserving the current settings.
An "Alarm Code 127, Setpoint Not Entered" may be generated if the "+" or "-" soft keys are used to change a setpoint or product, but the "YES" or "NO" soft keys are not used to accept or decline the new setting within 10 seconds. This feature ensures that changes are intentionally confirmed by the user.

Maintenance Features

While the manual primarily focuses on operational aspects, certain design choices imply maintenance considerations:

User Interface Clarity: The clear, step-by-step instructions and intuitive screen prompts reduce the likelihood of operational errors, which can indirectly contribute to better system maintenance by preventing misconfigurations that might lead to system stress or malfunction.
Automatic Return to Standard Display: The feature where the HMI returns to the Standard Display after 30 seconds of inactivity in changer screens helps prevent the system from being left in an intermediate state, ensuring that the controller is always operating under a confirmed setpoint. This reduces the risk of unintended temperature excursions due to an unconfirmed setting.
Alarm Code for Unconfirmed Setpoints: The "Alarm Code 127" serves as a diagnostic aid, alerting the operator if a setpoint change was initiated but not confirmed. This helps in quickly identifying and rectifying potential issues related to temperature control, ensuring that the system operates as intended.

The OptiSet Plus system, as part of the SR-3 Smart Reefer 3 Microprocessor, is a robust and user-friendly solution for precise temperature management in refrigerated transport, designed to offer both flexibility and reliability in various operational scenarios.

Thermo King Smart Reefer 3 Specifications

General

Model	Smart Reefer 3
Power Source	Diesel, Electric
Control System	Microprocessor-based
Weight	Varies by configuration
Dimensions	Varies by configuration
Compatibility	Compatible with a wide range of trailer types and sizes