South Bend, Indiana USA
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GPT-130 INSTALLATION GUIDE | PART NO.
25299
REV
B
4
Copyright © 2019 ETI,
®
All rights reserved.
4. INSTALL THE EXTERNAL ALARM
An alarm or power–off condition can be communicated
by either opening or closing a relay contact. It is important
to make the proper alarm relay connections to achieve
the desired result. The middle terminal labeled COM
(Common) is used in both wiring configurations. Connect
one alarm relay lead to the COM terminal. If the system
needs a contact to close to signal an alarm or power–off
condition, connect the other alarm relay lead to the NC
(Normally Closed) terminal.
If the system needs a contact to open to signal an alarm
or power–off condition, then connect the other alarm
relay lead to the NO (Normally Open) terminal.
If the unit has power, and there are no alarm conditions
then the NO and COM terminals will be connected. If
the unit loses power or an alarm condition occurs then
the NC and COM terminals will be connected. Refer to
Figure 5.
5. PANEL LOCKOUT
To prevent unauthorized changes of control settings, the
fourth DIP switch can be set to the on position to Lock the
settings. With Lock enabled, the control panel will allow
viewing but not changing any of the settings; only the °C
or °F option can be selected. Refer to Figure 6.
Note: The GPT reads the Lock DIP switch position when
the Settings screen is entered. If the switch is changed,
you need to re-enter the Settings screen.
6. INSTALL THE CONDUIT AND FULLY
TIGHTEN HARDWARE
Install the conduit runs to the control box. Use only Listed
Type 4X IP66 liquid–tight conduit hubs. With cabling
routed through conduit and conduit is secure, fully tighten
the control box mounting hardware and re-assemble
control box panels and cover in their original location.
Note: At this point the circuit breaker to the unit can be
turned on providing power to the unit.
7. SETUP AND SETTINGS EDITING
Please refer to the GPT 130 Manual for comprehensive
instructions for Setup and Settings Editing.
Pilot Duty
The GPT 130 Automatic Heat–Trace Control 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)/Canadian Electrical
Code requirements, as well as all other local
and applicable electrical codes and any
thirdparty standards. This product is intended
for commercial and industrial applications.
Follow the installation 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 GPT 130 is 30 amps with
resistive load.
