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GENERAL INFORMATION 

The Parallax Power Supply 7100 series power converter is a solid-state electronic 
power supply and is maintenance-free. These revolutionary RV power converters 
utilize technology developed for power supplies in computers that provides a clean 
and stable, voltage-regulated output while also providing safety features designed 
to help protect the converter against over-temperature and output overload. 

The Parallax 7100 series electronic power converter has been tested to comply with 
stringent safety standards and is Intertek/ETL listed.   

Refer installation and servicing of this product to qualified service personnel. 
Technical or service information is provided solely for use by licensed electricians 
and certified RV technicians. No endorsement of technical expertise is expressed 
and/or implied. User assumes all liabilities arising from use of this information.  

120-VOLT AC PANELBOARD 

The 120-volt AC panelboard section of the 7100 series is located behind the 
decorative door in the upper left-hand corner. This section contains the 120-volt 
AC main and branch circuit breakers for your RV. One of the breakers controls 
the 120-volt power to the 12-volt converter section located in the lower half of the 
7100. 

Check the breaker identification label below each breaker for what each branch 
circuit breaker controls. 

If the 7100 series DC power converter is not working, first confirm the RV supply 
or “shoreline” cord is plugged into a live circuit. Then check all the 120-volt 
breakers in the panelboard to make sure they are “on”. If a breaker is tripped, 
follow the instructions below to reset the breaker. If the breaker trips again, 
consult an electrician or certified RV technician. 

The 120-volt circuits may be turned on by flipping the breaker handle up to the 
“on” position or off by flipping the handle to the “off” position. To reset a tripped 
breaker, move handle to off then on.   

CONVERTER 

OPERATION   

The Parallax 7100 series electronic power converter is designed to supply the 
nominal 12-volt filtered DC power for all 12-volt operated devices encountered in 
RV service. Although the converter is an excellent battery charger, the converter 
does not require a battery to be connected to it for proper operation.   

Caution:

 

When installing a battery, always verify wiring polarity. Connecting a 

battery with reverse-polarity wiring will blow the power converter main fuses 
located on the 12-volt DC distribution fuse block. 

If the 12-volt load exceeds the converter output rating, the output voltage will drop 
to prevent any further increase in current. Turn off some DC lights or appliances 
and the output voltage will automatically recover. The same will occur if the 
converter exceeds safe operating temperature limits. Check to see that the 
converter’s air circulation is not blocked, or turn off some of the 12-volt load.   

If any 12-volt appliance fails to operate, check your RV’s 12-volt distribution fuse 
block located behind the decorative front door in the upper right hand corner of the 
converter and inspect all fuses. If a fuse is open or “blown”, replace it with the same 
size fuse (never install a larger fuse). If the fuse opens again, have an electrician or 
certified RV technician locate the circuit trouble. Replace blown fuses with Littelfuse 
type 257, Bussman type ATC, or Possing Electronic type ATP fuses only. 

CONVERTER COOLING SYSTEM  

The 7100 series electronic fan cooling system contributes to long converter life and 
trouble-free operation. The fan turns on automatically when required to cool the 
electronic components in the converter. The amount of airflow required is necessary 
to properly cool the converter components and the associated “air sound” generated 
may be audible in quiet environments.  

MOUNTING LOCATION & CLEARANCES 

The 7100 series converter is designed for indoor use only

.  

DO NOT mount in harsh environments; avoid areas where high levels of dust, dirt, or 
moisture may occur

DO NOT mount the power converter in battery compartments or in areas where 
flammable materials are stored.  

Mount to a vertical surface with the front of the converter open to the living area of the 
RV.  

Provide a minimum of 22 inches clearance to the front of the converter. Leave adequate 
room behind the converter for wire routing and air intake for the fan located at the rear of 
converter. 

DO NOT mount in zero-clearance compartments; overheating and thermal shut down will 
result.   

 

INPUT SUPPLY REQUIREMENTS 

Connect to a 120 VAC 60HZ 3-wire with ground supply. DO NOT use circuit protection 
larger than 30-ampere.   

CONVERTER TO BATTERY WIRING   

The battery supply wire from fuse block terminal “POS +” to the battery must be of 
adequate size and rating and must be protected within 18 inches of the battery with 
an appropriately rated fuse or breaker.  

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