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APPENDIX B – INSTALLATION – GPI SERIES B AND GPI SERIES 1
GENERAL INSTALLATION
POWERVAR GPI Series B and GPI Series 1 power conditioners utilize an
isolation transformer permitting the user to select from one of four different input
voltages. Series B models are designed for hardwire installation and may be
mounted in any orientation using the mounting holes provided. Series 1 models are
equipped with a power cord and receptacles and are designed for standalone
operation.*
The data plate attached to the power conditioner lists the current and voltage
ratings of the device. Care must be taken that the total current demand of all
connected loads does not exceed the maximum current capability of the power
conditioner. GPI Series B conditioners are available in two versions. Models with
the suffix “-91BUI” are designed for use with loads requiring 120 volt power. Models
with the suffix “-92BUI” are designed for use with loads requiring 240 volt power.
Unless specified differently at the time of order, Series B power conditioners
have been pre-configured by the factory for a 120-volt input. Series 1 power
conditioners are ordered for a specific input voltage and the circuit breaker installed
in the unit is the correct one for the selected operating voltage. The input voltage of
both the GPI Series B and Series 1 can be set to 100, 120, 208, or 240 volts by
changing jumpers on terminal block TB1 as shown in Figure 2.
Series B power conditioners must be matched with a circuit breaker that is
appropriately sized for the input current. The following table illustrates maximum
current ratings for each model size when operated at different nominal input
voltages.
For -91BUI and -92BUI Models
VA Rating 500VA 1000VA 1500VA 2000VA 3000VA
Voltage Tap
100V 5.5A 10.4A 15.50A 20.4A 30.4A
120V 4.35A 8.62A 12.9A 16.9A
25.50A
208V 2.50A 5.00A 7.6A 10.1A 15.15A
240V 2.17A 4.31A 6.45A 8.44A 12.7A
Output current at full load
VA Rating 500VA 1000VA 1500VA 2000VA 3000VA
Model suffix
-91BUI 4.16A 8.33A 12.5A 16.66A 25.0A
-92BUI 2.0A 4.16A 6.25A 8.33A 12.5A
*
GPI Series 1 power conditioners are not safety agency listed.
NOTE: IF THE OPERATING VOLTAGE OF A GPI SERIES 1 POWER
CONDITIONER IS CHANGED, IT WILL BE NECESSARY TO INSTALL A
DIFFERENT CIRCUIT BREAKER WITH APPROPRIATE CURRENT
RATINGS.