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PT-SINGLE
INSTALLATION MANUAL | PART NO.
25166
REV
D
2
instructions contained in this manual and those provided
by the heater manufacturer.
Size the circuit breaker appropriately for the expected
load and inrush current. The maximum rated current
for the
PT-SINGLE
is 30 amps with resistive load.
Heater loads and their controls should not share a circuit
branch with other types of equipment. A shared circuit
may result in electromagnetic interference that can affect
system operation.
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, refer to and perform the Post-Installation Test
described in this manual.
ITEMS INCLUDED
QTY.
P/N
DESCRIPTION
1
25170
TRACON MODEL
PT-SINGLE
Single-Point General Purpose
Heat–Trace Control
1
25076
Temperature Sensor
1
25299
PT-SINGLE
Installation Sheet
OVERVIEW
The TRACON
PT-SINGLE
Heat–Trace Control is a single–
point microprocessor–based heat–trace control
thermostat. It is ideal for applications which require
Ground–Fault
Equipment Protection (GFEP). Ideal uses
include freeze
protection, hot water temperature
maintenance, grease line trace, tank heating, and other
temperature monitoring and control applications. The
PT-
SINGLE
and its heater load can operate with an available
line voltage source of 100 –
277 V ac. The controller and
heater load share the same
supply connection. The
internal load contactor is rated to
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switch up to 30 A resistive. The Integral GFEP provides
safety in compliance with national and local electrical
codes. The unit’s housing is a NEMA 4X IP66 weather–
resistant enclosure for enhanced durability.
FEATURES AND BENEFITS
• Adjustable temperature setpoint allows precise control
of a wide range of processes
• Can use an NEC Class 2 temperature sensor with up to
2,000 ft. cable for enhanced installation options
• Thermistor temperature sensor with 20 ft. cable included
for applications of −40 °F to 230 °F (−40 °C to 110 °C)
• RTD input allows higher accuracy and extreme–
temperature applications
• The unit can accommodate RTD sensors with 3–wire
configuration
• Temperature display for accurate adjusting and
monitoring
• Load current display for accurate adjusting and
monitoring
• Ground fault current display for accurate monitoring,
protection, and alarm
• Adjustable alarm thresholds for excess ground fault
current, load current, and temperature
• Alarms indicated with panel display and relay contact
for remote signaling
• A Fault Mode setting which can be set to energize or de-
energize the heaters during a sensor failure
• Fire Protection Mode maintains heater operation for use
in critical fire protection systems
• Durable weather–resistant NEMA 4X IP66 enclosure
permits indoor or outdoor installation
The
PT-SINGLE
is permanently connected equipment
and does not have an internal disconnect device. The
installer must provide an accessible disconnect device,
with short circuit and overcurrent protection (these are
not supplied by Environmental Technology Inc). When
power is applied, the system will start.