KING SST 3 User Manual

Adjustable Electronic Thermostat TRACON® Model SST–3 (P/N 24492)

Instruction Manual

SAFETY INFORMATION AND WARNINGS

Pilot Duty

The SST–3 Adjustable Electronic Thermostat with GFEP cannot be used for Pilot
Duty applications.

Resistive Load Usage Only

This product is not for use with Inductive loads. Inductive loads may create
nuisance tripping of the Ground Fault Equipment Protection circuit.

Abnormal Odor or Smoke

In the event of smoke or a burning or abnormal odor, immediately interrupt power
to the unit by turning off the circuit breaker protecting the unit.

Electrical Shock / Fire Hazard

Any installation involving electric heater wiring must be grounded to earth to
protect against shock and fire hazard. Suitable ground fault detection and
interrupting systems must be in use at all times to reduce shock and fire hazard
and to protect equipment.

Electric wiring to heating elements must be installed in accordance with National
Electrical Code (NEC) requirements, as well as all other local and applicable
electrical codes and any third party standards. Follow the installation instructions
contained in this manual and also those provided by the heater manufacturer.

Size the circuit breaker in accordance with the size of the expected load. The
maximum current load for the SST–3 is 30 Amp resistive. This product is
intended for use in light commercial applications.

Make certain that the heater shield is properly grounded. Failure to do so may
result in damage to the equipment or fire.

Following installation and prior to beginning system operation, perform the Post­Installation Test described in this manual.

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Adjustable Electronic Thermostat TRACON® Model SST–3 (P/N 24492)

Instruction Manual

PRODUCT TESTING RECORD

Use this page to record the results of the Mega-Ohm test procedure in this
manual. This record will be a useful resource throughout the life of the product.

MEGA-OHM TEST (Page 9)

(Follow heat tape manufacturer’s recommendations or, if not available,

use a 500 VDC mega-ohm meter on the heat tape.)

TEST

DATE

AMBIENT

TEMPERATURE

Check heat tape manufacturer’s documentation.)

(Target: 20 MΩ or greater;

READING

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Adjustable Electronic Thermostat TRACON® Model SST–3 (P/N 24492)

Instruction Manual

TABLE OF CONTENTS

SECTION PAGE

Safety Information and Warnings ------------------------------------------------------- 1

Product Testing Record ------------------------------------------------------------------- 2

Unpacking the Unit ------------------------------------------------------------------------- 4

Inventory -------------------------------------------------------------------------------------- 5

Product Description ------------------------------------------------------------------------ 6

Installing the Control ----------------------------------------------------------------------- 7

Preparation and System Set-Up -------------------------------------------------------- 9

System Schematic Diagrams ----------------------------------------------------------- 10

Post-Installation Testing ----------------------------------------------------------------- 13

Operation ------------------------------------------------------------------------------------ 15

Ground Fault Operation ------------------------------------------------------------------ 20

Error Codes --------------------------------------------------------------------------------- 21

Maintenance -------------------------------------------------------------------------------- 22

Using the Jumper -------------------------------------------------------------------------- 23

Troubleshooting ---------------------------------------------------------------------------- 24

Specifications ------------------------------------------------------------------------------- 26

Ordering Information ---------------------------------------------------------------------- 28

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Adjustable Electronic Thermostat TRACON® Model SST–3 (P/N 24492)

Instruction Manual

UNPACKING THE UNIT

Immediately upon receipt, inspect the container and packing material for any
noticeable damage. Unpack the unit, taking care not to damage the packing
materials. Save the shipping container and related materials until normal
operation has been established. If the unit must be returned, take care to ensure
that it is repackaged as it was received.

As soon as the unit arrives at your facility, inspect it for mechanical damage. If
any of the following problems is found, contact Environmental Technology, Inc.,
Customer Service immediately:

 contents incomplete or incorrect;
 internal or external mechanical damage; or
 defective operation.

ETI Customer Service is available between 8:00 a.m. and 5:00 p.m. Eastern
Time at [phone] or [phone]. In the event of shipping damage,
keep the packing materials for inspection by the carrier.

RETURNS AND REPLACEMENT PART PURCHASES

Equipment cannot be returned for credit once it has been installed. ETI will
repair or replace faulty equipment under warranty. Prior to removal of equipment
for warranty return, please contact ETI Technical Support at [phone] for
troubleshooting assistance.

Before returning a unit to Environmental Technology, Inc., obtain a Return
Merchandise Authorization from our Customer Service Department, available
between 8:00 a.m. and 5:00 p.m. Eastern Time at [phone] or (800) 234-

4239. If possible, use the original container and packing materials when packing
the unit for shipment. It is important to mark the Return Merchandise
Authorization clearly on the outside of the shipping container so that it may be
correctly processed upon receipt at Environmental Technology.

For more information about replacement parts or for a replacement Data Sheet
or Manual, please visit http://www.networketi.com/.

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Adjustable Electronic Thermostat TRACON® Model SST–3 (P/N 24492)

Instruction Manual

INVENTORY

Using the information below, verify that the shipping package contains all of the
parts listed. Notify Environmental Technology, Inc., Customer Service
immediately if there are any discrepancies. Environmental Technology, Inc.
Customer Service is available between the hours of 8:00 a.m. and 5:00 p.m.
Eastern Time at [phone] or [phone].

Item Number Item Description

1

2 Accessory Kit

3 Installation Sheet

4 Instruction Manual (this document)

TRACON Model SST–3 Adjustable Electronic Thermostat

with GFEP

5 Temperature Probe Assembly

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Adjustable Electronic Thermostat TRACON® Model SST–3 (P/N 24492)

Instruction Manual

PRODUCT DESCRIPTION

The TRACON Model SST–3 Adjustable Electronic Thermostat with Ground Fault
Equipment Protection (GFEP) circuitry automatically controls heaters for freeze
protection, grease line trace, and light process control. The SST–3 can be
powered from an automatically selected operating voltage from 200 VAC up to
277 VAC and is rated for 30 amps maximum resistive load. An integral 30mA of
GFEP provides additional safety and compliance with national and local electrical
codes. The unit is housed in an environmentally-sheltered, weather-resistant
enclosure for enhanced durability.

Features and Benefits

 Adjustable set point facilitates multiple process control applications

 NEC Class 2 temperature sensor can be located up to 2,000 feet from the

control for enhanced installation options

 3-character display for easy setting and read-out

 Integral 30 mA of GFEP with manual and automatic test features

 Fire Protection Mode maintains heater operation for use in critical fire

protection systems

 Durable weather-resistant enclosure permits indoor or outdoor installation

 UL Listed to UL 873 Temperature-Indicating and -Regulating Equipment

 UL Listed to UL 1053 Ground-Fault Sensing and Relaying Equipment

The TRACON Model SST–3 Adjustable Electronic Thermostat with GFEP is
permanently connected equipment and does not have an internal disconnect
device. A readily accessible disconnect device, short circuit, and current
protection shall be provided and are not supplied by Environmental Technology,
Inc. When power is applied, the system will start.

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Adjustable Electronic Thermostat TRACON® Model SST–3 (P/N 24492)

Instruction Manual

INSTALLING THE CONTROL

Install this unit in compliance with National Electrical Code (NEC) standards, as
well as all other local and applicable electrical codes for your area. Prior to
beginning installation, make sure that the facility has properly sized electric
service and breaker. For additional information regarding electrical ratings and
facility power requirements, refer to the Specifications section of this manual.

This unit is intended for wall mount installation only. The wall used for the
installation should be capable of supporting four times the weight of the unit, or
about 20 pounds. Although the weather-resistant enclosure can be installed
outside, make sure to install the unit directly to a solid, stable surface. Install the
box itself; internal connections for the alarm relay and the temperature probe will
be made in the next section.

The dimensions shown in the Top View of Figure 1 are for the mounting hole
footprint location, not the overall outside dimensions of the unit, and run from
centerline to centerline of the four slotted mounting holes. The dimension shown
in the Right Side View of Figure 1 is from the bottom of the enclosure to the top
of the clear plastic lid and shows the distance the unit will protrude from the
mounting surface. For overall outside dimensions, refer to the Enclosure section
on page 26 of this manual.

Figure 1. SST–3 MOUNTING HOLE FOOTPRINT.

Top

View

Right Side

View

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Adjustable Electronic Thermostat TRACON® Model SST–3 (P/N 24492)

Instruction Manual

To install the control box, perform the steps below.

1. Use the box as a template to determine the mounting hole footprint

pattern. Hold the unit up against the wall onto which it will be mounted,
with the mounting blocks against the wall, then mark the wall at the
locations of the slotted mounting holes to determine the location of the
mounting holes on the wall.

2. As desired, to hold the box in place during the installation process, you

may loosely install one or both of the top mounting bolts as the remaining
holes are marked. To ensure accurate and level installation, however, do
not fully tighten any of the mounting hardware until the locations for all the
mounting holes have been determined and marked.

3. Once the four mounting holes have been located and marked, install the

box to the wall using properly sized 5/16-inch mounting hardware. Be
sure to use mounting hardware appropriate for the job, heavy-duty and
long enough to fasten the unit securely to the mounting surface. Make
sure to use all four mounting holes. Because conduit will also be installed
to protect the cables running from the control box, install the box, but
leave the mounting hardware loose enough to work the conduit into place.
The conduit will be installed later in this process, at which time all
mounting hardware will be securely tightened.

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Adjustable Electronic Thermostat TRACON® Model SST–3 (P/N 24492)

Instruction Manual

PREPARATION AND SYSTEM SET-UP

With system circuit breaker off, install the power cable, heater cable, temperature
probe, alarm relay, and conduit. Refer to Figures 2, 3, and 4, as well as Table 1.
Remove the clear plastic unit cover and face plate to access the inside of the
unit. Replace the clear plastic cover and face plate following installation.

INSTALLING THE POWER CABLE

Install the power cable as shown in Figure 2 and described in Table 1.

INSTALLING THE HEATER CABLES

Install the heater cables in accordance with National Electrical Code (NEC) and
manufacturers’ requirements, as well as other applicable codes. Properly seal
and waterproof all cable runs. Position the heater cable so it does not interfere
with the temperature probe. Never touch the ends of the yellow leads or let the
yellow leads contact each other or any component inside the control box once
power is applied. Upon conclusion of heater cable installation, perform a Mega­Ohm or “megger” test on the heater cables as directed by the heater cable
manufacturer. Record results on page 2 and retain for future reference.

INSTALLING THE TEMPERATURE PROBE

Install the sensor end of the temperature probe as desired for the intended
function. Route the temperature probe through conduit or through the weather­tight connection port on the control. Connect both temperature probe leads to
the Temp Probe terminals on the PC board. Refer to Figure 3.

INSTALLING THE ALARM RELAY

Install the alarm relay as shown in Figures 2 and 3 and described in Table 1.
Refer especially to the paragraph on Page 11 under Figure 3. After reading the
paragraph under Figure 3, connect the alarm relay leads as desired.

INSTALLING THE CONDUIT

Only UL listed, Type 4X, raintight conduit hubs and cable glands are to be used.
The hub is to be connected to the conduit of a rigid conduit system before the
hub is connected to the enclosure. Select, measure, cut, and install the conduit
in accordance with all National Electrical Code (NEC) requirements, all local and
applicable building and electrical codes, as well as the manufacturer’s
instructions. Ensure a sealed, watertight installation.

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