Trane Technologies Kit Installation guide

Brand: Trane Technologies

Model: Kit

Type: Installation guide

Trane Technologies KIT19795 Defrost Coil Sensor Kit is designed to help you optimize the performance of your Trane or American Standard heat pump. This kit includes a 3/8" coil clip and a detailed installer's guide to assist you in relocating the coil sensor to the coldest circuit, potentially resolving issues like ice banding and short defrost cycles. By following the troubleshooting flowchart provided, you can easily identify the best placement for the coil sensor, improving the efficiency and reliability of your heat pump system.

18-HH40D1-1A-EN

Defrost Coil Sensor Kit

KIT19795

(Used on all HP models except Side Discharge models)

Installer’s Guide

Safety Considerations

WARNING

▲

HAZARDOUS VOLTAGE!

Failure to follow this Warning could result in property

damage, severe personal injury, or death.

Disconnect all electric power, including remote

disconnects before servicing. Follow proper lockout/

tagout procedures to ensure the power cannot be

inadvertently energized.

WARNING

▲

Only qualified personnel should install and service the

equipment. The installation, starting up, and servicing

of heating, ventilating, and air-conditioning equipment

can be hazardous and requires specific knowledge

and training. Improperly installed, adjusted or altered

equipment by an unqualified person could result

in death or serious injury. When working on the

equipment, observe all precautions in the literature

and on the tags, stickers, and labels that are attached

to the equipment.

ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES

IMPORTANT — This Document is customer property and is to remain with this unit. Please return to service information

pack upon completion of work.

Inspection

1. Unpack all components of the kit.

2. Check carefully for any shipping damage. If any

damage is found, this must be reported immediately

and a claim made against the transportation

company.

3. Check to be sure all components are in the package.

Any missing components should be reported to

your supplier at once and replaced with authorized

components only.

Installation:

1. To remove the clip, firmly hold sensor base with both

hands. Firmly press with both thumbs on the open

end of the clip and push towards the sensor bulb.

2. To replace with the 3/8 clip, line up the clip notches to

the sensor base and follow steps in reverse.

Use the steps in the troubleshooting flowchart on the next

page to identify the new placement of the coil sensor.

General Information

It is normal to have variations in feeding of the outdoor

refrigerant circuits. In some applications it is normal to

see this in the form of frost banding. The recommended

solution in these situations is to relocate the coil sensor

to another circuit.

Before relocating the coil sensor, verify the following:

• refrigerant charge

• indoor air performance and

• air circulation around the outdoor unit

Steps in this document will aid in the identification of which

circuit might be best in the relocation of the coil sensor.

Coil Sensor Kit Contents:

Item Qty. Description

1 1 3/8” Coil Clip

2 1 Installer’s Guide

The manufacturer has a policy of continuous data improvement and it reserves the right to change design and specifications without notice. We are

committed to using environmentally conscious print practices.

Representative-only illustrations included in this document.

18-HH40D1-1A-EN 28 Mar 2022

Supersedes (New)

About Trane and American Standard Heating and Air Conditioning

Trane and American Standard create comfortable, energy efficient indoor environments for residential applications.

For more information, please visit www.trane.com or www.americanstandardair.com

Disconnect high voltage power from

the outdoor unit. Once power has

been removed from the unit remove

the power wire for the outdoor fan

motor. See figure 1 for wire location.

Relocate and secure CBS

with new 3/8 coil clip to

coldest circuit.

Measure the inlet

temperature of each

refrigerant circuit.

Disconnect power and

reinstall power lead for OD

fan. Apply power and

check for heating

operation.

Troubleshooting

Complete.

No further action

required.

Has

ice band or

short defrost been

observed?

Figure 1

YES

With black power wire removed from

DFC, safely secure and insulate

connector. Re-apply power to

outdoor unit and call for heat ing.

Note: Unit will be running without the

fan.

While system is operating,

observe each refrigerant

circuit.

Coil Sensor Relocation Flow Tree

Trane/ American Standard RunTru/ Tyler made Ameristar

Below are before and after examples of sensors that have been relocated on Trane, American Standard and Runtru

heat pumps. These pictures are for reference only. Follow troubleshooting tree to find best location for coil sensor. If ice

banding is found on side discharge models, contact your local distributor for further troubleshooting assistance.

Trane Technologies Kit Installation guide

Trane Technologies Kit Installation guide

Trane Technologies Kit Installation guide

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