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Global Power Technologies
1120 - Class I, Division 2, Group D, T3
1 GENERAL
1 .1 General Information
This manual provides installation, operation and maintenance instructions for the Global Power
Technologies (GPT) Model 1120 Thermoelectric Generator System.
Special Customer Option:
If the Generator System was ordered with specially engineered
options, they are completely described in the red Special Customer Option section of the man-
ual.
1.2 Definition of Terms
To correctly use this manual the reader must interpret the meaning of the following words as
herein defined:
Thermoelectric Generator
: A device that produces electrical power through the direct conver-
sion of heat energy to electrical energy.
Power Unit
: The hermetically sealed portion of the generator that contains the thermoelectric
materials and the cooling fins.
TEG
: A thermoelectric generator.
Matched Load
: A condition of load where:
a)
the load voltage of the generator is one-half of the open circuit voltage.
b)
the load resistance is equal to the internal resistance of the generator.
Optimum Load:
A condition of load where the power output of the generator is maximized.
Precision Load
: The precision resistor contained on the generator that provides the optimum
load condition. The voltage across the resistor is defined as V
set
and is used to analyze gener-
ator electrical performance.
Power Conditioner
: A broad term used to describe an electronic device attached to the gen-
erator output that converts, adjusts, limits or otherwise conditions power.
Auto Shutoff:
The 1120 generator is equipped with a thermocouple controlled solenoid valve
that can be manually reset. In the event of extended flame failure the thermocouple output will
be reduced sufficiently to release the solenoid and stop fuel gas flow to the burner.
Converter
: A specific electronic device attached between the generator and load that converts
one level of DC voltage to another.
Limiter:
A specific electronic device attached across the generator output that limits the volt-
age level.
1