Thermo King RLFE Bus Contractor Kit 401597 Installation guide

Brand: Thermo King

Model: RLFE Bus Contractor Kit 401597

Type: Installation guide

Overview

This retrofit kit replaces the current contactor box in your HVAC unit.

IImmppoorrttaanntt:: Software version needs to be 4.02.04 or higher. Refer to manual 54650 for software

flashloading instructions.

RCS1734

Installation Manual

1 2 34

Item Part Number Description Qty.

1. NSS Contactor box assembly 1

2. NSS Band wrap, 6.575” long 24

3. NSS Band wrap, 3.00” long 12

4. NSS Installation instructions 1

Installation Instructions

RLFE Bus Contactor Kit 401597

Installation Procedures

Contactor Box Removal

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1. Locate the contactor box in your HVAC unit and remove cover.

NNoottee:: Before removing any wires, note how they are routed into the box for reference later.

2. Disconnect and remove all incoming wires going to contactors, terminal blocks and ground

studs inside box.

3. Disconnect 6 pin connector.

4. Remove the four ¼-20 screws and remove box from unit.

a. Save hardware for reuse.

b. The box and cover will not be reused.

Contactor Box Installation

1. Route wire harnesses into the new box as they were originally.

2. Install new contactor box and secure with screws, lock washers and flat washers (removed

earlier) and tighten hardware securely.

3. Reconnect wires and torque per FFiigguurree 11.. NNeeww CCoonnttaaccttoorr KKiitt IInnssttaallllaattiioonn WWiirriinngg DDiiaaggrraamm

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4. Neatly bundle and secure all wiring with provided band wraps.

5. Reconnect the 6 pin connector.

Figure 1. New Contactor Kit Installation Wiring Diagram and Torque Specs.

RCS1735-2

22-26 in-lb 22-26 in-lb

15-18 in-lb

11-14 in-lb

Figure 2. Contactor Box Wiring Diagram

RCS1736-1

Figure 3. All Torque Specs. Shown

22-26 in-lb 22-26 in-lb

15-18 in-lb

11-14 in-lb

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Thermo King RLFE Bus Contractor Kit 401597 Installation guide

Thermo King RLFE Bus Contractor Kit 401597 Installation guide

Thermo King RLFE Bus Contractor Kit 401597 Installation guide

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