nvent JBS-100-EC Installation Instructions Manual

WARNING:

CAUTION:

APPROVALS

Nonhazardous locations

C US

JBS-100-EC

Electronic Controller Replacement kit for JBS-100-ECP-A and
JBS-100-ECW-A Installation Instructions

DESCRIPTION

The nVent RAYCHEM JBS-100-EC is a replacement kit that can
be used to replace the electronic controller used in the JBS-100­ECP-A and the JBS-100-ECW-A.

For technical support call nVent at (800)545-6258.

TOOLS REQUIRED

• Large slotted screwdriver

• Small slotted screwdriver

KIT CONTENTS

Item Qty Description

A 1 JBS-100-EC board

This component is an electrical device that must be installed correctly to ensure proper operation and to prevent shock or fire. Read these
important warnings and carefully follow all of the installation instructions.

• To minimize the danger of fire from sustained electrical arcing if the heating cable is damaged or improperly installed, and to comply with
the requirements of nVent, agency certifications, and the National Electrical Code, ground-fault equipment protection must be used. Arcing
may not be stopped by conventional circuit breakers.

• Component approvals and performance are based on the use of nVent-specified parts only. Do not use substitute parts or vinyl electrical tape.

• The black heating cable core and fibers are conductive and can short. They must be properly insulated and kept dry.

• Damaged bus wires can overheat or short. Do not break bus wire strands when scoring the jacket or core.

• Keep components and heating cable ends dry before and during installation.

• Use only fire resistant insulation materials, such as fiberglass wrap or flame-retardant foam.

HEALTH HAZARD: Prolonged or repeated contact with the sealant in the core sealer may cause skin irritation. Wash hands thoroughly.
Overheating or burning the sealant will produce fumes that may cause polymer fume fever. Avoid contamination of cigarettes or tobacco.

Consult MSDS RAY5510 for further information.

CHEMTREC 24-hour emergency telephone:
[phone]

Non-emergency health and safety information:

[phone]

.

1

WARNING: Shock Hazard

Before you begin dismantling your controller, turn

OFF THE power and lock out the circuit breaker.

• Remove the outer lid
and the safety cover.

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2

Wiring template

• Before disconnecting
the wires, note their
position on this
template. You can
then use this diagram
for reference when
rewiring.

• Disconnect all wires.

RTD Alarm

Power

Terminal Block

3 4

• Remove the screws
and the PC board.

• Install the new PC board using
the four copper screws.

Note: You may
need to loosen
or remove
external fittings
on the box
to get the PC
board out.

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Note: Once
installed,
tighten any
external
fittings.

5

• Reconnect all wiring. Use the wiring diagrams below for reference.

Pipe Mounted Enclosures – JBS-100-ECP-A

Self-regulating heating cable Mineral Insulated heating cable

Heating cable ground

Self-regulating or

MI heating cable

RTD

Wall Mounted Enclosures – JBS-100-ECW-A

Heating cable using junction box

RTD

Power out

Ground

GLCB

Incoming

Power

Phase A

Phase B

GLCB

To Heater

Phase A
Phase B
Ground

Ground

MI heating cable

MI heating cable using
direct connection

Optional

RTD

Alarm

Input

Contacts

MI heating cable

Power

Terminal

Block

RTD

RTD

Incoming

Power

Phase A

GLCB

Alarm

GLCB

Phase B

Ground

Phase A
Phase B
Ground

6

• Replace wire cover.

• Turn on power from ground-fault circuit breaker.

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PROGRAMMING THE CONTROLLER

Reprogram controller using battery connection or turning power onto the unit.

7A

Powering Controller via Battery

• Connect 9 VDC battery (not provided) to the supplied

battery connector.

• Plug the battery connector onto the two pins on the
controller marked “Battery Connector.”

9 Volt
battery

7B

Powering Controller via Line Power

WARNING: Shock Hazard.

Secure the wire cover in place with the four screws

before proceeding.

• Turn on branch circuit breaker that supplies power to the
controller and heating cable.

GFCB

Ø
Ø

8

Activating and Navigating the Menu in Set-up Mode

• To activate set-up mode, press Menu button for

approximately 5 seconds.

• The display will change to the default mode for units.

• Use the Up and Down buttons to change values.
Use the Next button to change to next display
code/parameter.

• When completed, secure the enclosure cover.

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Menu

Up

Next

Down

Parameters

The first parameter displayed during set-up
mode is units (°F or °C). Other parameters,
their default values, and minimum and
maximum values are shown in the
following table.

Alarms

The following table lists the error or
alarm codes and their respective faults:

Display Code Parameter Default Min. Max.

1

2

Units

°F or °C

Maintain
set point

°F — —

40°F 32°F (0°C) 425°F (218°C)

3 Deadband 5°F 1°F (1°C) 10°F (10°C)

4 High Alarm

5 Low Alarm

Note:

1. The minimum high temperature alarm set point must always be larger than the maintain set

point plus the deadband plus 5°F (3°C).

2. The maximum low temperature alarm set point must always be smaller than the maintain set

point minus the deadband.

1

2

Off 38°F (3°C) 482°F (250°C)

Off 20°F (–6°C) 420°F (216°C)

9

• Replace lid.

Alarm / Error Codes Fault

rtd Err Shorted or open RTD sensor

Hi Alr High Temperature Alarm

Lo Alr Low Temperature Alarm

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North America

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nVent reserves the right to change specications without notice.

Raychem-IM-H57564-JBS100EC-EN-1805 PN P000000302

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