Troubleshooting

Diagnostics

The controller is equipped to display a diagnostic code through the interface module; if the display is not present (Class 2 control), there is no method to retrieve the diagnostic codes from the unit.

If there is no interface module to indicate the presence of a diagnostic, service will only be triggered by a comfort or operational complaint.

The controller will only display the most severe diagnostic present.

Translating Multiple

Diagnostics

The controller senses and records each diagnostic independently of other diagnostics. It is possible to have multiple diagnostics affect the operation of the unit, but only the most severe diagnostic will be displayed.

Resetting Diagnostics

A reset clears any latching diagnostics and allows the control to try to run the PTAC normally. If the latching condition is still present after the reset, the control will shut down the PTAC. A reset will reset a unit that is running normally. A reset is just like cycling power to the unit.

There are two ways to reset diagnostics:

1.Manual output test at the controller

2.Cycling power to the controller

Manual Output Test

When manual test has been initiated, the controller exercises all outputs in a predefined sequence. The last step of the sequence resets the controller. See the Manual output test section on page 22 for more information about the manual output test.

Cycling Power

When someone turns off the controller’s power, then re-applies power, the unit cycles through a power up sequence. By default, the controller will attempt to reset all diagnostics at power up. Diagnostics present at power up and those that occur after power up will be handled according to the defined unit diagnostics sequences (see Diagnostics table below)

Table 28.

Diagnostic codes

 

 

 

 

 

 

 

 

 

 

 

 

 

Severity

Diagnostic

Diagnostic

 

 

Auxiliary

 

Level

Code

Description

 

Compressor

Heat

Indoor Fan

 

 

 

 

 

 

 

1

C1

Compressor Failure

DISABLED

ENABLED

ENABLED

(severest)

 

 

 

 

 

 

 

 

 

 

 

 

 

2

C2

Indoor Temperature

ENABLED

ENABLED

ENABLED

 

 

Unit Sensor Failure1

 

 

 

 

 

 

 

 

 

 

 

3

C3

Indoor Temperature

ENABLED

ENABLED

ENABLED

 

 

Display Sensor Failure

 

 

 

 

 

 

 

 

 

 

 

 

4

C4

Indoor Coil

 

ENABLED2

ENABLED

ENABLED

 

 

Temperature Failure

 

 

 

 

 

 

 

 

 

 

 

5

C5

Outdoor Temperature

ENABLED,

ENABLED,

ENABLED,

 

 

Failure

 

run as PTEE

run as PTEE

run as PTEE

 

 

 

 

 

 

 

 

6

C6

Outdoor Coil

 

ENABLED,

ENABLED,

ENABLED,

 

 

Temperature Failure

run as PTEE

run as PTEE

run as PTEE

 

 

 

 

 

 

 

7

C7

Configuration

ENABLED

ENABLED

ENABLED

 

 

Corrupted

 

 

 

 

 

 

 

 

 

 

 

 

8

-

No diagnostic present

ENABLED

ENABLED

ENABLED

 

 

 

 

 

Table 29. Latching diagnostics, reset

 

 

 

 

 

required

 

 

 

 

 

 

 

 

 

 

 

 

Code

Diagnostic Description

Description

 

 

 

 

 

 

 

 

C1

Compressor Failure

OLP has had multiple trips (3)

 

 

 

 

 

 

 

C7

Configuration Corrupted

configuration failure

 

 

 

 

 

 

 

 

 

 

 

Table 30. Automatically resetting diagnostics

Code

Diagnostic Description

Description

 

 

 

C1

Indoor Temperature - No Backup

No source of indoor temperature is

 

Available

available

 

 

 

C2

Indoor Temperature - Unit Sensor

Unit indoor temperature valid then not

 

Failure1

valid

 

 

 

C3

Indoor Temperature - Display Sensor

Display indoor temperature valid then not

 

Failure1

valid

 

 

 

C4

Indoor Coil Temperature Failure

Indoor Coil Temperature valid then not

 

 

valid

 

 

 

C5

Outdoor Temperature Failure

Outdoor Temperature valid then not valid

 

 

 

C5

Outdoor Coil Temperature Failure

Outdoor Coil temp valid then not valid

 

 

 

PTAC-SVX01C-EN

41

Page 41
Image 41
Trane PTAC-SVX01C-EN manual Troubleshooting, Diagnostics

PTAC-SVX01C-EN specifications

The Trane PTAC-SVX01C-EN is a cutting-edge Packaged Terminal Air Conditioner (PTAC) designed to provide optimal temperature control, energy efficiency, and user comfort in a variety of settings, including hotels, apartments, and office buildings. This unit stands out with its robust features and advanced technologies, making it a reliable choice for meeting diverse heating and cooling needs.

At the heart of the Trane PTAC-SVX01C-EN is its innovative design, which combines powerful performance with quiet operation. This unit utilizes a high-efficiency compressor that ensures rapid cooling and heating, providing ideal comfort regardless of the external climate. With a capacity range suitable for smaller spaces, the PTAC delivers strong performance while maintaining energy efficiency, thus reducing operational costs over time.

One of the key characteristics of the PTAC-SVX01C-EN is its user-friendly interface. The intuitive controls allow users to effortlessly adjust temperature settings, fan speeds, and modes of operation, including cooling, heating, and fan only. This flexibility enhances user comfort while optimizing energy consumption. Additionally, the unit features a programmable timer, enabling users to schedule operation according to their specific needs, further conserving energy when spaces are unoccupied.

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